2722_593_A.pdf

TP: 2722

(HM&E MANUAL)

TECHNICAL MANUAL

PUMP, DIRTY OIL

DISTRIBUTION STATEMENT D. – Distribution authorized to Department of Homeland Security, DoD and their contractors to protect publications required for official use or for administrative or operational purposes only;

determined on 21 February 2003. Other requests for this document shall be referred to Commander, USCG Surfaces Forces Logistics Center, ESD – Tech Info Mgmt Br, 2401 Hawkins Point Road, Baltimore, MD 21226.

WARNING – This document contains technical data whose export is restricted by the Arms Export Control Act (Title 22, U.S.C., Sec 2751, et seq.) or the Export Administration Act of 1979 (Title 50, U.S.C., App. 2401 et seq.), as amended. Violations of these export laws are subject to severe criminal penalties.

DESTRUCTION NOTICE. - For unclassified, limited documents, destroy by any method that will prevent disclosure of contents or reconstruction of the document.

PUBLISHED UNDER AUTHORITY OF THE U.S. COAST GUARD

SWBS 593

SECTION A

Department of Homeland Security

UNITED STATES

COAST GUARD

Individual Manual Application Sheet

Technical Publications Number

Secton Applicability

SWBS Number 593 SWBS Element Title

ENVIRONMENTAL POLLUTION CONTROL

SYSTEMS

Section Identifier A

Equipment Functional Description PUMP, DIRTY OIL

CI Functional Description ESWBS Code Remarks

Planset Hulls

901-WMEC 901, 902, 903, 904

TECHNICAL MANUAL

DIRTY OIL PUMPS

SUPPLIED TO:

UNDER P.O.

FOR HULL NOS.

TACOMA MFR. NO.

ITEM NO.

PUMP MODEL:

PUMP SERIAL NO.

Tacoma Boatbuilding Co. Inc.

38289-10258

348, 349, 350 & 351

48309-7

B-1 EXTERNAL GEAREX

B 7793014-21 thru -24

TABLE OF CONTENTS

SECTION I

P UMP Instruction Manual Parts List Elevation Drawing Sectional Drawing Mech. Seal Drawing (Typical) Performance Curves - Predicted

Instruction Manual Motor Drawing

SECTION 2

MOTO R

SECTION 3

ACCESSORIES Coupling Instructions

INSTALLATION AND OPERATING INSTRUCTIONS

for

WORTHINGTON (CANADA) LTD.

P.O. BOX 40

BRANTFORD, ONTARIO N3T SM5

CANADA

I I

1 7� At 41

EXTERNAL

TYPE

CAUTION

Pumps and drivers are aligned at the factory prior to shipment. However, alignment may be disturbed during transit and erection and must be cliecked prior to start up. The Sier-Bath Screw and Gear Pump Division will not be responsiblefor malfunctioning due to.

improper alignment. (See pages 2 and 3.)

IN

W

�w

At initial startup. oil must be replaced with new oil after one week or 100 running hours.

For Normal Running Temperatures 50' to 150'F

Indoor year-round installations or outdoor sum-mer conditions ambient 20' to 95'F.

The oil should-meet the following requirements:

1. AGMA Standards 250.02, Group #5 (viscosity 80 to 105 SSU at 210'F)

2. Good oxidation stability (inhibitor addi-tives)

3. Good anti-wear properties (phosphorus additives)

4. Good resistance to foaming (thru refining or additives)

Typical Oils-See Column "A" below

Oil is to be changed at 6 month intervals or seasonally.

Winter Running Temperatures O' to 100'F

Cold starting conditions, 20' to 50'F ambient.

The oil should meet the following requirements:

1. AGMA Standards 250.02, Group #1 (viscosity 180 to 240 SSU at 100'F)

2. Mild EP type (leaded)

3. Good resistance to foaming

Typical Oils-See Column "B" below

Oil I's to be changed at 6 month intervals or seasonally.

For High Temperature Service 140' to 250'F

Steam jacketed pumps. etc.

The oil should meet the following requirements:

1. AGMA Group #7 (Not compounded) (viscosity 125 to 150 SSU at 210'F)

2. High temperature oxidation resistance.

3. Good anti-wear properties.

4. Good resistance to foaming.

Tv ical Oils-See Column "C" below

For: 140' to 180'F change oil every 4 months 180' to 220'F change oil everv' 2 months 220' to 250'F change oil every month

For Temperatures Above 250"F

Use same requirements as for 140 to 250'F ex-cept at initial startup oil must be replaced with new oil after 24 hours of running time and there-after oil is to be changed weekly.

W

TYPICAL OILS

Column A Mobil DTE-1313

Tellus 72 Teresso #85 Sunvis 99

Hytherm M Regal G, R and 0

3005 Perma-Flo 95 Rubilene

Extra Heavy

Column B Mobil Compound AA

Macoma 33 Pen-O-Led EP-I

Sunvis 120

Meropa #2 241,.Leaded Lub #51

Pennant EP #1

Column C Mobil DTE-HH

Vitrea 79 Nuto 146

Sunvis 150

Regal K 2913 Amolite 260

Rubilene Ultra Heavy

Socony Mobil Oil Co.

Shell Oil Co.

Humble Oil & Refining Co.

Sun Oil Co.

Atlantic Refining Co.

Texas Company American Oil Co.

Sinclair Oil Co.

or equal

LUBRICATION OF EXTERNAL PUMPS

WARRANTY

Unless otherwise specifically stated, guarantees are limited to the following: All equipment of our manufacture is guaranteed against defective workmanship or material for a period of one (1) year after date of shipment from the factory, provided the equipment was operated under the conditions for which it was said. If the purchaser claims the equipment or parts are defective within the one (1) year period, the purchaser shall notify the Company immediately in writing so the Company may inspect by authorized agent the defective claim or issue shipping instructions for return of part, or parts, to factory. In the event the equipment or part is found defective, the Company shall thereupon correct the defect or defects, by repair or by replacement, f.o.b. factory, of the defective parts. There will be no life guarantee on any pump handling abrasive or corrosive material. The liability of the Company arising out of supplying said equipment, or its use, whether on warranties or otherwise, shall not in any case exceed the cost of the parts involved, and upon the expiration of said one (1) year, all such liability shall terminate. The Company assumes no liability for damages or expenses of any character including those arising out of the installation, use, or re-sale of such equipment.

Body a suction passage lea er which consists of d intersecting bores.

Th gears in the assem-ble unit. e sc passage leads to the dis-charge flange located symetrically opposite the suc-tion flange.

Rotating Element The rotating element consists of two shafts which are mounted parallel to each other. Each shaft is fitted with a keyed rotor and timing gear, bearings, locknuts.

lockwashers, and lip seals. Power is transmitted to the driven shaft through the timing gears, thereby elimi-nating contact between the pumping rotors and reduc-ing the wear which would result from this contact.

Gear Pumping Rotors The pumping rotors are precision machined continuous tooth herringbone gears which do not trap liquid or create thrusts.

I -

INSTALLATION AND OPERATING INSTRUCTIONS

OF SIER-BATH GEAREX PUMPS

PRINCIPLES OF OPERATION

The rotary gear pump incorporating timing -ears in its design is a good instrument for pumping viscous materials. The Sier-Bath Gearex pump is manufactured in both internal and external design. The former is an ideal one for lubricating fluids and the latter for fluids not having any- lubricating qualities.

The basic pump -consists of two gears, enclosed in a closely fitted casing, so ar-ranged that when the gear teeth unmesh on one side, liquid fills the resulting space between the gear teeth and is carried around in that tooth space to the opposite side and is displaced as the teeth again mesh.

Recirculation is prevented by the meshing of the gear rotors. The pump is of the positive displacement type and. therefore, for each pump revolution, neglecting a small amount of slip, a fixed quantity of fluid is pumped. Slip is the term for the recirculation of the fluid from the discharge side to the suction through the operating clearances.

Pressure differential, clearances and viscosity are the factors which govern the amount of slip and thereby the delivered capacity. In order to maintain clearances and design discharge capacity, these pumps are equipped with timing gears which prevent contact between the pumping rotors and, therefore, reduce wear on them. The fittenta+- &. ex lim its timing, 6-ears and bearings loeated inside the pump Where they F-11-P h-1614 cated by the Ruid pumped, where as the External Gearex has its timing gears and bear-ings located outside the pump and lubricated by separate oil baths.

DETAILED DESCRIPTION

Timing Gears The timing gears are precision cut steel herring-bone wears pressed on and keyed to the shafts and secured with lockwashers and locknuts.

Shafts

The shaft,; are precision ground to proper tolerances with snap ring grooves. keyways and necessary threads to hold all component parts of the element.

Bearing Brackets (External Design Only) The front and rear bearing brackets are used to close the ends of the body and to house the front and rear bearings respectively. On the inboard faces, the brackets serve as gland housings as well.

Heads (External Design Only) (Rear Cover and Timing Gear Housing)

The heads serve to enclose the bearings and timing gears and act as lubricant reservoirs.

I-, -kw"L Housings (internal 0 He I Desi On-03* On te '08 beari�g h The front hea n of the pump be and con 12 seal

0 pump. timing gears.

INSTALLATION OF SIER-BATH PUMPS

When you get your Sier-Bath Pump, you will have received the finest piece of commercial pumping equipment made. Care in selection of materials and workmanship go into producing all Sier-Bath products, and all parts must pass a rigid inspection before being released for use, and it would be folly not to install these units with the same care. It will pay big dividends, and assure a long trouble-free life.

from the pump to suction tank. No part of suction line should be above suctionconnection of pump.

Relief Valves Sier-Bath Pumps are of the positive displace.

ment type and will build up considerable-pres.

sure if discharge line is blocked through closing of valve, etc. It is therefore necessary for the protection of pump and discharge line to provide a relief valve. This should preferably be piped back to the suction tank, not to the suction line.

Leakage through relief valve can then be easily detected.

Alignment AU units are aligned at the plant, and the coupling is then disassembled. Through shipping and numer-ous causes, this alignment, mi many casesi, is impaired, and although all units are coupled with kexing mem-bers, we strongly urge the customer to realign the pump and motor and lubricate the coupling with a suitable lithium soap grease such as Exxon�'Beacon Q2 prior to startup. The couplings are shipped not lubricated due to the requirement to check coupling alignment before starting it.

The angular check can be made as follows:

Line up coupling faces by using a tapered wedge and adjust until wedge penetration is equal at the quarter nts; (90' apart). This also may be ac-compliseeodi by using a spacer block and feelers at quarter points and adjusting until an equal thickness is obtained at each point.

The parallel check can be made as follows:

Line up the shafts by using a straight edge or the end of a scale on the top of the coupling hub.

Repeat the same procedure at each 90' interval until the hubs line correctly.

When the angular alignment and the parallel align-ment are adusted properly, secure the bolts on the pump feet and the motor feet.

Lubrication �if all ini ihpi8&&j�p i�..pSg4-4�.J 1,�;

6n an external pump follow the special lubrication instructions shown on inside front cover.

*11

I0", Foundation All Sier-Bath pumps should be erected on a firm, level, flat foundation. Although it is not necessary to use anchor bolts, we would recommend that the base be grouted in to assure an even bearing.

Piping

All piping should be made from the pump, and not to it. Flanges should face up true so that strain will be reduced to a minimum. All piping should be supported and not allowed to hang on or be supported iby the pump. No matter how rugged a pump may be made, pipe strains can cause more damage and wear than many years of service.

For pumps handling hot liquid, provisions should he made for expansion of piping.

Great care should be exercised during erection of piping to keep lines clean and free of dirt, scale, threading or welding chips, etc. Such foreign matter entering pump may cause scoring ot cylinder and unnecessary breakdown and costly repairs.

;cketed heads and bodid,ump! ,hav'pn madethe oo -1 et ipginj hould al- - - r--rat the I__"�t oint et at top or�1 ' inlet pipinghighest point, provid�e vep on so that flow ated to con-trol te leav ng C1

1207.

Suction

We wish to point out at this time, that a leaky suction line (this includes everything from the flange on pump down to suction line in tank) will cause more trouble than any other point. A leaky suction does not show up readily, whereas a leak-ing discharge line will.

It is good practice to maintain the suction line size equal to or larger than that of the pump suction flange, especially if heavy cold liquids may be handled-make them as short and direct as possible.

Suction lines must be air tight.

If there is a suction lift, avoid air pockets in the suction hv having a progressive down- pitch

Remove pipe plug from discharge side of the body using a temporary filling line. Pour in about one gallon of product into the pump while rotating the pump by hand (in opposite direction from rotation arrow). This will cause the product to work into the gears to help seal while priming.

Turn temporary filling piping down and aim it into a bucket.

Start the pump, making sure rotation is ac-ofcording to rotation arrow. When a solid stream oil is gained stop the pump and remove tempo-rary piping. Replace plug. The pump is now ready to go on the line.

1. Check Alignment Precaution should be taken before initial start-ing of the pump to insure that the pump and motor are in proper alignment. If the unit is operated with shaft misalignment existing, serious damage may be done to the bearings of the pump and motor. Check motor rotation and recouple.

When operating with fluids at elevated temper.

atures, an additional "hot" check must be made after the fluid has been introduced into the pump and the casing has reached the operating temper.

ature.

2. Check Gland Before initial starting, after installation or after overhaul, tighten up the gland nuts with a wrench.

Allow to stand tightened for about ten minutes before backing off nuts. Shake the gland loose and run up nuts finger tight. Make sure that the gland is not tilted.

3. Initial Priming and Starting Check the oil levels in the timing gear housing and front cover. These should be level with the marks on the B ndow and the level plug.

(iv d 14D) (F�br-JT HD.)

In order to insure- that there is ample lubrica-tion when starting the pump after periods of shut down and to prevent corrosion of the bearings and timing gears, it is recommended that the pump be turned over once a day. This will cover the bearings and timing gears with a. film of oil.

nuts, shake the gland loose and retighten the nuts until finger tight.

OPERATING INSTRUCTIONS

4. Running The pump needs no special attention while run-ning. The stuffing boxes should ooze a small amount of liquid while running. This will insure lubrication of the packing. Naturally, suspicious noises or high operating temperatures should be investigated.

A leaky suction line will cause more trouble than anything else. Quite often such a leak is difficult to find since it leaks air in instead of-oil out.

MAINTENANCE

Stuffing Box Maintenance It will be necessary to tighten up the packing gland from time to time. The packing should leak about one drbp of oil every 20 to 30 seconds.

After the gland has been drawn up to the extent that it touches the casting, the old packing should be completely removed with a packing hook or some other suitable instrument. Cut new packing on an arbor or mandrel of the same diameter as the shaft makmg cut at about 45' angle. Insert the first ring noting position of the joint. Insert the second ring with the joint directly opposite.

Continue the procedure until it is possible to exert gland pressure on the packing with the gland studs and nuts. Then push each remaining ring home with the gland. Fill up the stuffing box so that the gland will approximately be li' inside the box when it is pulled up tightly. Allow it to remain tight for about 10 minutes, then slacken off the

: -1 I I.- 1 i

I r____49M4 I - i r, GP

0 -I1\

I

SCRIBE UNE HERE-7

DRIVE .- F1 -� \ -\Z

I I __71

SECTION ^-A

L-G-J

SCRIBE LINE WJM

DRIVE 7 IV

_"�v

__7 '

7, SECT" AA

FIG.4

SCRIBE I

SECTtON A�A

FIG.3

FIC, 2

0.

I

Timing Gear Renewal (Size B C D & E Gearex)

Whenever new timing gears are to be installed in the pump, the new gears have to be timed on the rotating elements. The following procedure should he followed:

1. Insert shafts and rotors through the pump bodv, install Bearing Brackets or Bearing Ho�sings, (with bearings) on pump body to properly position shafts and rotors.

2. Install the timing gear key on the idler shaft.

3. Intermesh the timing gears and install them on the shafts (one will be on a key-way, one will be free). Fig. I & 2.

4. Place the timing gear key from the drive shaft into the keyway at right angles to the shaft and against the timing gear face.

5. Turn the drive shaft at the coupling end in a clockwise direction until the pumping rotors are in contact. Fig. 3.

6. Scribe a line on the gear face using the key as a straight edge.

7. Repeat steps 5 and 6 turning the shaft in a counter clockwise direction. Fig. 4.

3. The gear face will now be marked with two parallel lines, the distance between them slightly larger than the width of the keyway. Fig. S.

9. Remove the free timing gear after marking the position of it with respect to the fixed gear and cut a key the proper width in the newly marked position. If the key is central.

ly located between the scribed boundaries, the pump is now ready for final assembly.

10. Follow instructions on Page 5 or 6 for reassembling the pump.

A

DRIVE SKOT --,

Spare Parts For normal usage, the only spares necessary are

g. The pump wears unless abrasive liquids eck of pressure versus rator the condition of

PUMP.

r those installations where lengthy shut downs cannot be tolerated, it is recommended that a com-plete rotating element be purchased as a spare.

When orden'ng spare parts please state pump size and serial number and use the part numbers shown on sectional drawinL*.

MAINTENANCE

Dismantling The Pump (External Design)

1. Close the suction and discharge valve.

2. Disconnect the flexible coupling.

3. Disconnect suction and discharge flanges and drain the pump.

4. Remove the pump from the bedplate.

5. Remove the coupling hub from the drive shaft.

6. Ease off gland stud nuts and remove glands.

7. Remove front head.

8. Remove rear head.

9. Remove the locking ring or locknut on the front bearings.

10. Unbolt the front bearing bracket and pull it off the shafts.

11. Remove the timing gear locknut and lockwasher.

12. Remove the timing gears and the inner races of the roller bearings.

13. The shafts and pumping rotors may now be removed from the

PUMP-

14. The rear roller bearings when held in place with snap rings can be removed with the aid of the Truarc Plier No. 3.

15 The front ball bearings are held in place with snap rings which can be removed with the aid of Truarc Plier No. 5.

16. The pumping rotors are pressed and keyed onto the shafts. It is not practical to disturb them unless they are to be renewed. They can be driven off the shaft using a soft metal bar.

17. Remove packing and lantern rings from the bearing brackets and front head.

Reassembling of The Pump (External Design Only)

1. Slide the shafts with pumping rotors mounted on them into the pump body and rear bearing brackets.

2. Install rear roller bearings.

3. Replace the front bearing bracket. Do not, however, tighten up on the body studs at this time.

4. Slide the front ball bearings (except in E Gerex size where spherical roller bearings are used) into place and secure them with snap rings.

5. Replace the timing gears and inner races and lock them in place with the locknuts and the lockwashers.

6. Align the pump using the dowel pins between the pump body and the front bearing bracket as a guide.

7. When alignment is achieved and the pump rotates freely, secure the shaft lock rings of the ball bearings.

8. Replace the rear and front covers and bolt in place.

S.

QTY-

REF- NAME OF PART MATERIAL PART NO-

6 PER PUMP

I Body GR WCB 0130370310 1 4 Shaft -Drive AST�IA822__R 5 0521460222 5 Shaft -Driven 11 0521470222-

Ao _� � a 6 Rotor - 1.00 Width Z�jmGR 146" 1910220112 2 7 Timing Gear �RT�lfl22 4igilio`122 2

81 Bearing -RoITer Commercial 1500380299 2 91 Bearing -Innerface 1500380399 2

10 'Bearing -Ball 1500020099 2 AST14- _AZZI b12 Bracket -Rear GR WCB 3730690015 1

13 Bracket -Front 3730700015 1 15 Head -Rear A��M 140

38 0120730201 16 Head -Front It 0120270101 1

19 Spacer -Rotor A51M A,4?JCL 30(Finel_0110160303 4 20 Mechartical Seal -Type 9 Commercial 2100560131 4

21 St4tionary Seat . it 2101590245 4

130 Spacer -Timing Gear Steel 0920060124 2

133 Locknut -Timing.Gear 2710030321 2 134 Lockwasher -Timing Gear 715010321 2

135 Key -Coupling 0620010121 I

136 Key -Timing Gear 0620015721 2

137 Kay -Rotor 0620016021 2

138 Snap Ring -Front Bracket ti 2300180021 4

Snap Ring -Rear Bracket 2300460021 2

1431 Oil Seal -Brackets Bxnugier 702370090 4 1441 Oil Seal -Front �Ieads II 0702440190 1

1611 Gasket Asb Neop. 1710100094 4

_J89 _Spacer -Rear Brg. Steel 0920069524 2

'Oil Level Gau2e ommercial 1600020099 -1

WHEN ORDERING REPLACEMENT PARTS BE SURE TO GIVE SIZE AND SERIAL NUMBER OF

PUMPS (AS STAMPED ON NAMEPLATE)- ALSO NAME OF PART, MATERIAL, PART NUMBER AND

QUANTITY OF PARTS REQUIRED-

SHEET I OF "SHEETS

TYPE: BI EXT. GEAREX

� CAST STEEL

REPAIR "PARTS LIST

CONTRACT NO- B 1-793014

THUS '* 38289-10258

REFER SECTIONAL DRAWING 9-0-3-305-03

RECOMMENDED SPARE PARTS MARKED

DIRTY OIL Pumps 48309-7 I TEM 6

J.

WORTHINGTON (CANADA) LTD- BRANTFORD, ONT- N3T 51VI5 CANAPA-

SHEET OF .SHEETS2 2

TYPE'. BI Ext. Gearex Cast Steel

REF- NAME OF PART MATERIAL PART No QTY

PER PUMP

22 Retaining Pin Steel 2902070021 4

130 Spacer-Timing Gear 11 0920060124 2

171 Screw-Body to Brkts. It 1323120721 16

1791 Screw-Brkts. to Heads it 1304040621 16

182 Nut-Brkt. to Head 1306020021 16

194 Dowel-Brkt. to Body 2902100021 4

197 Dowel-Fr. Head to Brkt. 2902100021 2

191 Front Oil Level Checking Plug Steel 1211000021 2

WHEN ORDERING REPLACEMENT PARTS BE SURE TO GIVE SIZE AND SERIAL NUMBER OF

PUMPS (AS STAMPED ON NAMEPLATE) ALSO NAME OF PART, MATERIAL, PART NUMBER AND

QUANTITY OF PARTS REQUIRED

REPAIR PARTS LIST

REFER SECTIONAL DRAWING 90-3305-03 CONTRACT NO-137793014

I tem O'

THUS *RECOMMENDED SPARE PARTS MARKED

A

WORTHINGTON (CANADA) LTD- BRANTFORD, ONT- N3T 5M5 CANADA-

I I

WE lrp.T6 (LB6 ArroD-)

PUMP - - ____ - 95

$A6EPI.A-rF_ - -- -- - - 140 CPLI; t CUA90- -- 10 MoToe --- 52 TOrrAL UM IT �� Z97

CERTIFIED CORRECT FOR CUST. OADER__t_ awromeR 'fAcomAI E3PATRuiLpirgin, DO. ORDER- CONTRACT 9_0 50A -.-.

CERTIFIED BY: 12C DATE- 6epr Zihs

DIMENSIONS ARE FROM DRAWINGS, CASTINGS

MAY VARY SLIGHTLX FOUNDATION BOLT3 MUST

NOT BE FIXED RIGIDLY UNTIL MACHINE IS

IN PLACE.

"CONFIDENTIAL"

"THIS MATERIAL IS THE PROPERTY OF

WORTHINGION (CANADA LTD. AND SHOULD NOT

K REPRODUCED PUBLISHED OR DIS%=D TO

OTHERS WITH06T AUTWMIZATION.

I I I I I I DATE: "Y /79 OWN.: lZC - CK'O., SCAL9, DO NOT SCALE '

III I I WORTHINGTON (CAKADA) LTD. DIMENSIONS %OiN Am INCH15� 71M. ��l -ILI 40 II visa. I C, L6 ARANTFORD, ONTARIO REVISION I

. . II-..Q-.- -- .a imis. -1 ,, a.-l:_

7=

C i a

0 0 I0 7 a 4 2 I

I 00--GZ,7,G-Zrv

PUMPINC coNvlroN-s

FLOW 10 u6cv-m

FzF_-s-$u62F_ --5uc-rjof4 0 P61

- 016ciAeciz- GO ?61q

6EINICE FLUID __ - LO , wo I DO 6I,11

DF-:51--w -mmp F 40 4o 3o VI -6 c -La VL6. -Q. 3443 55 2--lcP vl!sc.e jOoF --- O 3,Do 32 1 CP

(PT.) - 11 2 15-9 '5-71 9.2

LO -UJ8IlCA'rrlJ6 OIL HO- H�PIZAULIC OIL

DO-VIE-6F-L. OIL '$EA %,A-rrIZ

V16CO61TY IN �LSLJ

D

M0101? DATA;

"CeNERAL, FLFCTeIC 1-514P, '300 RPM a/r.0/440V PCIPPRC)OF MO-110R, FIRAME ta4.T. er;rr.R0r.-r,-'peA6/iNaIs i44isvoo f14402100-20 f%;IQ FURTHER PETAIL-4 c

A92EA Or 5A6E 'To EC- -6UP9ot2,TP_0 5,J

61419�5 FOUNPA710W

PUQCAA6F 012DEQ 36ZE5,3 -10258

6clvicE OIL PUMPS

14ULL NUMBEQ6 - 345, 341�), 350, 3!51

'rACorAA MrQ W---45'30S-7 rrEm-�- r.

PUMP 6EI21AL N-5- 57193c,421/2z/23/24

I

COUPLANQ -$I C-9 8&714 *r. "Is WI-r" 4VAP0

0 392813_102r5a

KKYTES:

J.!5UC'rIoW t Di-60ACXE PEICOT6 MAY VAIZY t"o'

2.PUMP 207A'TION CW VIEWEP F20fA COUPLINQ

FMD

5.6H'APT -,E.Awwc,-'JO"WCjZAWE'TVPE 5&

HIECI-1AWCAL 6EAL6

4. FOO :6EC-rIONAL DWC, Or PLIMP 6FF-eo-550E-03 &

A A

I I ��-r rw6 f I !C-� IZC I D E S C R I P T I 0 N IDiIZT/ OIL PUMP

�* R EVISIONS IZONE JDATE ISY I a-I FE-P-2--L. C4EAQEx ELEVA-Tiotj 153-3225-00

NO DESCRIPTION NO DESCRIPTION NO DESCRIPTION NO DESCRIPTION

I BODY 1 6 HEAD-FRONT 143 SEAL- FRONT 8� -REAR ORK �T

144 SEAL-FRONT HEAD

4 SHAFT- DRIVE 19 SPACER-ROTOR PLUG-PIPE -/4NPT

5 SHAFT - DRIVEN 20 MECHANICAL-6EAL TYPE 9 161 GASKET 189 SFACER - BEARING

6 ROTOR 21 :57ATIC)�JAIZY 6EA7 191 PLUG-PIPE. I:I_06�A -/,,NPT

7 GEAR-TIMING 22 RETAII41WG Pi" 170 NAMEPLATE 192 PLUG- BREATHER -/4 wr-T 8 BEARING - ROLLER 130 SPACER-BEARING & T. GEAR 171 ARROW-ROTATION 194 DOWEL- BRACKET TO BODY 9 BEARING- INNER RACE 133 LOCKNUT-TIMING GEAR 172 NAMEPLATE-DISCHARGE 197 DOWEL- FRT HEAD TO BRK'T.

I 0BEARING -BALL 134 LOCKWASHER-TIMING GEAR T7_3 SCREW-NAMEPLATE 198 GAGE-OIL LEVEL

135 KEY-COUPLING 177 SCREW-BODY TO BRACKET

12 BRACKET- REAR 136 KEY- TIMING GEAR 179 SCREW -BRACKET TO HEAD

.. T R.'�-I" .�l "I I ED SIZE 61 EXTERNAL G9AREX

CROSS SECTION

ILL, 11

D. .,,T I-L I.- -1 BM 3BIA

_CH �.E -1S. F�.A

�.l -ERS INONE

! 1 1381 SNAP-RING-FRONT BRACKET 0 1

15 1 HEAD- REAR H 1391 SNAP-RING REAR BRACKET I I

I __j I _- I...... I I Vro. -I- - - -- - -- I .

1,)fl rt7-KL)IUK

,�rv

I I io-gorr.-06 I Niv .. I �,;,T�15 c-, NOTES�

(1) ITEMS 170,171,172,173,191 AND 197 ARE FURNISHED

BUT ARE NOT SHOWN.

D19ZT/ OIL PUMP6

HULL WUM51:26 -346, 549, '55o, + SS I

IAC�MA MFO W� 48509- 7

ITT," � - - ____ 6

bFIeIAL N-6 B179-301421/2z/25/24

13 I t5KA�,KtI-rKtJNl IUINUI-tJKAGKtl IF0 HtAU

"CONFIDENTIAL" I

"THIS MATERIAL IS THE PROPERTY OFWORTHINGTON (CANADA) LTO AND SHOULD ALOTIIE REPRODUCEOPLSLIS _D OR Pj�q�_OSED To

OTHERS WTHO T AUTHORIZATION.

-41- DM� .. SIER 13ATH PUMP DIA111IG �OOR Ie, eT.lrIc;TolJ �C j ." I-,. _W6L-1- w -- j PAET .. I i "I

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PERFORMANict 6'�--- iiR-'BATF ''S'JZE' c OPER

BEARING-T-) RE-

----SUCTION-VIS Su 0--3 .0.- um

-RERIAL-N E

JCUSTOMiEk IAL VIL 11Q, I; q

10 40

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7�iER-BAITH PUMP, DATE JO ��IPC -W-3 014, F'

G&B-SBP-SA

b. Align motor accurately, using a flexible coupling if possible. For drive rerommendations consult drive or equipment manufacturer, or General Electric Company.

c. V-belt Sheave Pitch Diameters should not be less than the following values:

Horsepower V-belt Sheave, Min Dia.

Synchronous Speed, Rpm Conventional- Super- A and 8 3V

3600 1 1800 11200 900 Pitch Dia. Outside Mo.

1-1/2 ' 314 1/2 2.2 2.2 2-3 1-1/2- 2 1 3/4 2.4 2.4

- 3 1-1/2 1 2.4 2.4

2 1-1/2 2.4 2.4

- - 2.6 2.4

7-1/2 5 - - 3.0 3.0

'Mm sheave width 2 (N-W) - 1/4".

Mm sheave width N-W.

Sheave ratios greater than 5:1 and center-to-center distances less than the diameter of the large sheave should be referred to the Company.

d. Tighten belts only enough to pre-

Minimum

Moto, Volts max. wire gage no. for branch HP Fuse 'i c.it lengths indicated

Amps 200 ft. 500 ft.

1 230 25 1 4 1 4 1 2 8 115 50 1 2 a 6

1-1�2 230 30 1 4 1 2 1 0 6 115 60 1 0 6 4

2 230 40 1 4 1 2 8 4 115 80 1 0 6

3 230 60 1 0 1 0 8 4 115 11 0 6 4

5 230 90 3 8 6 2

'Values based on National Elect,.c.1 Code.

GEI-56122A

Supersedes GEJ-2464D

Frames 143 - 184 and 143T - 184T All Enclosures

SAFE MOTOR OPERATION

Avoid contact with rotating parts and be sure that shaft key is fully captive before motor is energized.

Avoid contact with the start or run ca-pacitors in single-phase motors until a safe discharge procedure has been followed.

Act with care and in accordance with prescribed procedures in handling, lifting, installing, operating and maintaining the equipment. Do not lift motor and driven equipment with motor lifting means. If eyebolts are used for lifting motors, they must be securely tightened, and the direction of the lift must not exceed a 15-degree angle with the shank of the eyebolt.

Do not use motors with automatic-re&et thermal protection where un-expected starting of equipment might be hazardous to personnel.

Provide proper safeguards for per-sonnel against possible failure of motor-mounted brake, particularly on applications involving over-haul-ing loads.

Safe maintenance practices and quali-fied personnel are imperative. Before initiating maintenance procedures, be sure that all power sources are discon- D ected from the machine and accessories to avoid electric shock and personal injury from rotating parts. If a high-potential insulation test is required, procedures and precautions out-lined in NEMA Standards MG1 should be followed.

FAILURE TO PROPERLY GROUND

MOTOR MAY CAUSE SERIOUS IN-

JURY TO PERSONNEL. GROUND-

ING SHOULD BE IN ACCORDANCE

WITH THE NATIONAL ELECTRIC-

AL CODE AND CONSISTENT WITH

SOUND LOCAL PRACTICE.

WARNING:

High voltage and rotating parts of electrical machinery can cause serious or fatal injury. Its installation, op-eration and maintenance should be performed by qualified personnel only.

Familiarization with NEMA MG2 Safety Standard for Construction and Guide for Selection, Installation and Use of Fractional and Integral HP Motors and Generators, the National Electrical Code and sound local practices is recommended.

For equipment covered by these In-structions, it is important to observe safety precautions to protect personnel from possible injury. Personnel should be instructed to:

Avoid contact with energized circuits.

Disconnect all power sources before attempting maintenance or repair.

2. MOUNTING

a. Mount motor securely on a firm, flat base. All ball-bearing motors, except vertical high-thrust, may be mounted in any position.

vent slippage. Belt speed should not exceed 5000 ft. per min.

3. POWER SUPPLY &

CONNECTIONS

a. Nameplate voltage and frequency should agree with power supply.

Motor will operate satisfactorily on line voltage within 10% of nameplate value; or frequency within 5%; com-bined variation not to exceed 10%.

b. Dual voltage motors can be con-nected for the desired voltage by following instructions on nameplate or connection diagram.

c. Wiring of motor and control, overload protection and grounding should be in accordance with Na-tional Electrical Code and local building codes.

Remove drain plugs from the frame of enclosed motors used outdoors or in other high mois-ture areas.

Typical 180-frarne motor

INSTALLATION

1. LOCATION

a. Dripproof Motors are designed for installation in a well ventilated place where the atmosphere is rea-sonably free of dirt and moisture.

b. Standard Enclosed Motors are designed for installati'on where motor may be exposed to dirt, moisture and most outdoor conditions.

c. Severe-duty Enclosed Motors are designed for installation in highly corrosive or excessively moist atmo-spheres.

d. Explosion-Proof Motors have a U/L label which indicates manu-facture to Underwriters' Labora-tories standards for hazardous locations shown on the label.

I ndi, id. .1 Branch Cic. if f., Sin.1-Ph.- Moto, INSTALLATION AND MAINTENANCE

TRI,6qA�A& SINGLE AND POLYPHASE

- BALL BEARING MOTORS

GENERAL� ELECTRIC

b. Relubricate with General Electric D6A2C5 grease unless special grease is specified on nameplate.

c. Motors having pipe plugs or grease fittings in bearing housings should be relubricated while warm and at stand-still. Replace one pipe plug on each end shield with 1/8" pipe thread lubrication fitting. Re-move the other plug for grease relief.

Be sure fittings are clean and free from dirt. Using a low-pressure grease gun, pump in the recommend-ed grease until new grease appears at grease relief hole. After relubri-eating, allow motor to run for 10 minutes before replacing relief plugs.

d. Motors not having pipe plugs or grease fittings in bearing housings can be relubricated by removing end shields from motor, cleaning grease cavity and refilling the cavity with recommended grease.

CAUTION: Bearings and grease must be kept free of dirt

Relubri.

Type of Typical Examples Hp cation Service Range Interval

Val�es; door openers;

Easy portables floari sanders; 1/2-7-1/2 10 years motors perat ng infre-gently (I hour per day).

Machine tools; i,-condi- 1,onmg apparatus; con-

I or 2 shifts;

gauge compressors re-

Standard f,.g.,ution mach.,, , y; 1 /2 7 years laundry machinery; I., 7-1/2 tile -. thm.ry; oil -11 pump,; . -d-irking achieve

Motor. for fans, M-0 sets, oc., that u. 24 hours Pe, day, 365 day. per

Se�ere year; coal and mining 1-1/2 - 4 years machinery; motors sub- 7-1/2 ject to ser� ere vibration;

steei-ill ser�ice.

Dirty, �ibrcrting applica- Very t.ons; �here end of shaft 1-1/2 - Se�ere is hot (pumps and fans); 7-1/2 9 months

6ient.

If wire size is selected from the pre-ceding table, single-phase motor performance will not be adversely affected by voltage drop in the branch circuit.

4. THERMAL PROTECTORS

a. the words "Thermally Protected" on the nameplate identify motors having built-in protection against dangerous overheating.

1. Manual reset protectors are reset after motor cools by pressing ex-ternal reset button.

2. Automatic reset protectors (no ex-ternal button) reset automatically after motor cools.

CAUTION: Where unexpected start-ing would be dangerous, do not use automatic reset protection.

OPERATION

1. Dry, the motor windings if stored in a damp location In drying, do not exceed 85 C (185 F).

2. Check rotation under no-load condi-tions. To reverse rotation: 3 Phase-interchange any two line leads; 2 Phase-interchange line leads 1 & 3;

1 Phase - follow connection name-plate or label on motor.

3. Operate under load for at least one hour. Then observe whether any un-usual noise or heating has developed.

4. Check operating current against nameplate.

MAINTENANCE

1. INSPECTION

a. Inspect motor at regular intervals.

Keep motor clean and ventilating openings clear.

2. LUBRICATION

a. Ballbearing motors are ade-quately lubricated at the factory. Re-lubrication at intervals consistent with the type of service (see table for motors with standard grease) will provide maximum bearing life. Ex-cessive or too frequent lubrication may damage the motor.

4. MOTOR WINDINGS

a. To clean, use a soft brush and, if necessary, a slow-acting solvent in a well-ventilated room, SERVICE

Your GE motor should be serviced only by qualified persons who have the pro-per tools and equipment. Fast, depend-able in-warranty or out-of-warranty service for your motor can be obtained from any of General Electric's nation-wide network of authorized Electric Motor' Servicenters. Consult the Yellow Pages of your telephone directory for the Servicenter nearest you.

3. EXPLOSION-PROOF MOTORS

a. Explosion-proof motors contain special features and are manufaetur-ed in accordance with U/L and car-ries their label. Therefore, it is rec-ommended that repairs be made at a General Electric Apparatus Service Shop which has been authorized to make such repairs.

Th es e instructions do notpurporf tcico�er oil details or variations in eq uipment nor to provide for every possible contingency to be m of in connection with installation, operation or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently lor the purchaser's purposes, the matter should be referred to the General Electric Company.

General Electric Company General Purpose Motor Fort Wayne, Decatur - Ind.

Department Paterson - N.J.

GENERAL ELECTRIC

TITLE

FLEXIBLE m INSTALLATION AND

COUPLING B IER N MAINTENANCE INSTRUCTIONS

BATH BULLETIN

DIVISION GEAR CO., INC.

9252 KENNEDY BLVD.. NORTH BERGEN. NEW JERSEY 07047 C-19504

r- '/a

- MORE HORSEPOWER WITH LESS SIZE, WEIGHT

0 ASSEMBLED, UNCOUPLED IN SECONDS

o NO WRENCHES OR SPECIAL TOOLS REQUIRED o.SAFE AND SILENT AS SMOOTH SHAFTING

INSTALLATION AND

MAINTENANCE INSTRUCTIONS

FOR

CONTINUOUS SLEEVE

FLEXIBLE GEAR COUPLINGS

'#�WBRIGArION PLUS FIG III , FOLLOW THESE SIMPLE STEPS TO CORRECTLY INSTALL

THE SIER BATH FLEXIBLE GEAR COUPLING.

F-i STEP NO.

F-1 STEP NO.

F-1 STEP NO.

1 Be sure that all parts are available and are clean.

2 Place one (1) snap ring and one (1) sea] on each shaft. IMPORTANT: Be sure that the groove in the seals face toward the center of the coupling and that the mold mark will be visible after the seals are installed in the coupling.

3 Install hubs on shafts as shown in Fig.

11 or Fig. M.

Note: Hubs may be installed with shaft flush with the counter bore face (Sur-face "X" Fig. ID or flush with the align-ing face (Surface "Y" Fig. M) as long as the proper gap between hubs is main-tained (STEP #5).

SHRINK FIT: Shrink fits are recommended for heavy duty or low speed applications. Be sure the key is a snug side fit in the shaft and coupling keyway wiffi clearance on top. Install keys into shafts. Heat hubs uniformly, using hot oil or an ovento approximately 350'F. Slip hubs on the shafts to the correct location as determined by your installation (see note above).

PRESS FIT: Light press fits may be used for many installations. Unless otherwise specified Sier Bath Couplings are furnished with an interference f it.

SLIDE FIT: Slide fits should only be used in low torque, light duty applications (set screws must be firmly tightened).

FIG Il SEE FIG V FOR G AND G, DIMENSIONS

FIG M

I L .0

FIG IM

FIG V

*DISTANCE

GREASE CAPACITY APPROX. BETWEEN SHAFTS

SIZE WT. LBS.

WEIGHT VOLUME R. BORE G DIM. G1 DIM.

FIG. M FIG. 11

C 7/8 1 OZ. 1/8 Pt. 5 1/8 7/;7-.

3 OZ. 3/8

/4 Pt. 1 3 1/8

5 oz. 3/4 Pt. 20 �4 3/4

C3 I bs. 11/8 Pt. 33 3/4 b's, 1 5 Y4 /4

C31/2_ 3/4 /s Pt. 3

C4 1 Ibs. 1/4 3/4

C41/2 11/4 1 bs. 3 1/4 3/4

C5 11/2 Ibs. 3;/2,.Kl` 95 V4 3/4

C6 2 lbs 1/4 3/4 C7 2 1 3/8 Qt. 320 7/8

C9 ,If 'V2 lbs. 2 1/a Qt. 520 ill

C I 43/4 Ibs. 2!% Qt. 925

,,Zf2 61/2 1 bs. 3% Qt. 1200

4 Engage gear teeth and slide sleeve over the hub installed on the longest shaft.

5 Mount units to be connected in place.

Check coupling size (stamped on sleeve) and maintain required spacing G or GI between hubs as shown on Fig. II and Fig. DI. Check G Dimension with a tapered or feeler gauge at 900 inter-vals. Align hubs using a straight edge at 900 points along aligning diam-eters (aligning should be as close as possible) by shimming or shifting one or both of the connected units.

6 Hand pack hub and sleeve teeth with grease, forcing some grease between hub faces G or GI to provide lubri-cant reservoir. Lightly coat both seals with grease. BP

7 Engage teeth and slide sleeve over hubs to center position. SEE Fig. M. Press in seals with blunt tool until they are firmly seated against sleeve shoulder. Snap ring grooves should be completely visi- We. If grooves are not visible, remove sleeve and carefully. repeat step # 5 and 6.

8 Insert snap rings in grooves, using a winding motion. IMPORTANT: Recheck to insure snap rings are positively seated, and set screws over the keys and the lube plugs are tight.

F-1 STEP NO.

F7, STEP NO.

F-l STEP NO.

F-l STEP NO.

F-� STEP NO.

*MAY BE ANY DIMENSION BETWEEN G AND GI

MAINTENANCE

Should your Sier Bath Series "C" coupling need to be disassembled for an alignment 'check, remove one snap ring, slide sleeve off hubs. Seal will be forced out of one end during this operation. Clean out old lubricant and inspect seals and gear teeth. Re-assem-ble starting at step #7.

To re-lubricate without disassembling coupling, re-move both lube plugs and position lube holes at 450 to horizontal. Force grease into top hole until clean grease flows out of opposite hole.

Re-install plugs.

DIMENSIONS IN INCHES Approx.

Cap. Wt., Lbs.

Max. Rough Max. HP/100 .0fSTOCE Rough Size Bore Bore R.P.M. R.P.M. A B C D E F anWEEN SHMTS H i K Bore

GT__Gr-_ C 7/8 1 V4 716 25,000 4 3 Vs 3 s/1,s 2 2 1 V2 1 V8 3/s 3 3/4 Y8 5 i% - 44 2;,QQQ 2,;;2 244 11;�s 11%x-;4- ;� -44%r 3A. 2"

C2 -1244, 7/8 18,000 32 4V4 43/4 21/�, 31/4 21/,,, 1 /,, V8 V2 47/8 3& 3_, 13

2-1/2 2-5/8 �1� 14,000 48 43/4 51/2 31/76 315/16 2V4 I 1 17/,2 V4 3/4 523/32 /4 20

C3 31/8 1 1/2 1 2,' 210� _-_7 80 5V2 6 5/s 3 3/4 43/4 2 51s 17/a V4 -61/8 V4 43/4 33

C 3 V2 35/, 11/2 10,600 - lZi� 83/4 7 V2 4 5 31s 4V4 2 3 83 1/4 51/2 63 _6 --9,400 V4

41/8 2 200 4-- -A3/4 4 5/s 6V4 IS 3/4 91/2 V4 6V2 91 -'4%, /4

C4V2 4 3/4 21/2 8,800 292 1OV4 9 V2 �4 5 2716 V4 3 1 0 3/s V4 7V4 126

C5 5 3/4 3 7,500 430 12V4 10 -S'V4 2 7/s 1/4 3/4 121/4 V4 81/8 195

C6 65/8 4 6,500 60 .0 12V4 61/2 91/2 6 3/a- 1/4 3/4 1 3 3/8 1/4 91/4 267

C7 71/2 5 4,000 147/8 14 71/2 1 01/2 7V4 3 8_ V 93/ 320

C9 1/2 1 6 2,000 19 161/4 8Va 1 2 5/a 91/4 WAs V2 I !!nV4 121/2 520

C11 111/2 3,500 221/2 19V4 8 '/a 1 5 5/8 1 1 41/16 V2 1 22V2 V4 925

2,200 4,000 25 2 0 1/9 83/s. 116% 121/4 41/4 V2 1 25 1/4 16

MANUFACTURER LUBRICANT

American Oil Co. Rykon I EP

Atlantic 134fining Co. Lubricant #17 & #52

Brook Oil Co. Leadolene #375 Light

MANUFACTURER LUBRICANT

Pure Oil Co. Poco HT-EP-1

Pennzoil Co. TTM Multi-Purpose

Quaker State Oil Co. EXPP-2

Continental Oil Co. Conoco Super-Lube Sinclair Refining Co. Litholine Multi-Purpose Fiske Bros. Refining Co. Lubriplate 630 AA Sun Oil Co. Prestige #741 EP Gulf Oil Co. Gulfcrown EP-O - Standard Oil of California Calol Industrial (medium) _ Humble Oil & Refining Co. Nebula EP-0 Standard Oil of Ohio Sohitran 2 Keystone #15 EP XXLT Texaco Inc� Marfax #1 I Mobil Oil CO. Sovarex L-O Tidewater Oil Co. Veedol Alitho 20 1 Phillips Petroleum Co. Philube #1 & #2 1

-LUBRICATION HOLES

DRAW-OFF HOLES

B DISTANCE BETWEEN SHAFTS MAY BE

ANY DIMENSION BETWEEN G AND GI

-0

Length of one shatt must be equal to or greater than C plus G.

Draw-off holes are standard in all hubs except Sizes 1/g and 1V2.

*MAY BE ANY DIMENSION BETWEEN G AND G,

Cities Service Oil Co. Trojan A-1 Shell Oil Co. Alvania EP-2

This list is not meant to limit the users' selection of lubricants. Other lubricants of comparable quality may also be used for normal operating conditions. For high speeds, and extreme temperatures, consult the factory for lubrication recommendations.

Printed In U.S.A. B 703

COUPLING

OATA

RECOMMENOEO LUBRICANTS

BIER E

BATH

GEAR CO., INC.

FLEXIBLE COUPLING DIVISION

9252 KENNEDY BLVD., NORTH BERGEN, NEW JERSEY 07047

TROUBLE SHOOTING - ROTARY PUMPS

TROUBLE

I No Discharge:

Lack of discharge from a pump may be caused by any of the following conditions:

-Pump not primed.

-Net inlet pressure too low. Check with a gauge at the pump inlet.

-Wrong direction of rotation.

-Clogged inlet -Air leaks -Relief valve not properly adjusted or is held off seat by foreign material.

2. Insufficient Discharge:

Insufficient discharge from a pump may be caused by any of the following conditions:

-Air leaks in inlet or through stuffing box.

-Speed below rated speed.

-Net inlet pressure too low.

-Foot valve or strainer too small or obstructed.

-Foot valve or end of inlet pipe not immersed deeply enough.

-Piping improperly installed permitting air or gas to pocket in pump.

-Mechanical defects:

Pump damaged Pump badly worn Packing defective

-Clogged inlet -Fluid being pumped of viscosity greater than specified.

-Relief valve not properly adjusted or is held off seat by foreign material.

3. Loss of Prime Following Satisfactory Operation:

Loss of prime under these conditions may be caused by any of the following:

-Leaky inlet lines -Static lift too high -Al r or gases in the fluid -Mechanical Defects:

Pump damaged Pump badly worn Packing defective

TROUBLE SHOOTING -ROTARY PUMPS

TROUBLE

4. Excessive Power Consumption:

Excessive power consumption may be caused by any of the following conditions:

-Speed too high -Fluid heavier or more viscous than specified.

-inlet of outlet line obstructed.

-Mechanical Defects:

Shaft bent Rotating element binding Stuffing boxes too tight Misal tgnment

-Working pressure greater than that specified (check gauge accuracy) -Defective pressure gauge

Hammer, Noise or Vibration:

Hammer, noise and/or vibration may be caused by many factors among which are:

-Air or gas in the fluid being pumped ThIs can result from:

Leaking inlet line Inlet pipe not submerged deeply enough Dissolved or entrained air or gas in fluid at source Flash-off of lighter fractions of pumped fluid

-Cavitation which may be caused by one or mare of the following:

Too high inlet velocity Too many sharp changes in direction of inlet too h1gh inlet velocity.

High vapour pressure liquid (liquid may boll absolute pressure existent at pump suction).

Too high static lift Relief valve chattering Mechanical defects line, coupled with at temperature and

Front Matter: