B09_Q_A_2_0002.pdf

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Potable Water Tank Diving/Cleaning Service - Death
Solicitation number
140P8124Q0070
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This document is a Request for Quote (RFQ) for potable water tank cleaning services at Death Valley National Park. The RFQ includes details on a float valve mechanism, including specifications, dimensions, and installation requirements. The float valve is a Cla-Val Model 124-01 that is used to accurately control liquid levels in tanks. The RFQ also addresses tank access procedures, stating that the contractor shall have all required personnel and follow internal safety plans, with an NPS Utilities staff member facilitating access. The federal contract opportunity associated with this RFQ is for dive and clean services on 11 potable water tanks at Death Valley National Park, with a solicitation number of 140P8124Q0070. The procuring agency is the Department of the Interior National Park Service Pacific West Region.

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RFQ # 140P8124Q0070 Potable Water Tank Cleaning Amendment #2: 8-7-24

Question: Please provide detailed specifications for the float mechanism, including its intended purpose, dimensions, weight, and buoyancy requirements.

Answer: See next page.

Question: Tank Access Procedures: Please confirm if a designated access leader will be required for divers to enter the tank. If so, please outline the specific responsibilities and qualifications for this role.

Answer: The contractor shall have all personnel on site that their insurance plan requires and to follow all internal safety plans to ensure that their employees are safe. An NPS Utilities staff member will facilitate access, ensure tank levels are appropriate and to help in flushing and testing.

Float Valve

Supply Tank

Stilling Well

Float Valve

• Accurate and Repeatable Level Control

• On-Off or Non-Modulating Action

• Fully Adjustable High and Low Level Settings

• Simple Design, Proven Reliable

• Easy Installation and Maintenance

The Cla-Val Model 124-01 Float Valve is a non-modulating valve that accurately controls the liquid level in tanks. This valve is designed to open fully when the liquid level reaches a pre-set low point and close drip-tight when the level reaches a preset high point.

This is a hydraulically operated, diaphragm valve with the pilot control and float mechanism mounted on the cover of the main valve. The float positions the pilot control to close the valve when the float contacts the upper stop. The high and low liquid levels are adjusted by positioning the stop collars on the float rod. The difference between high and low levels can be adjusted to as little as 1" (25 mm), or to as much as 18" (450 mm).

Level settings can be as much as eleven and one half feet below the valve. The float mechanism may be located remotely from the main valve. See the technical data sheet on Model CF1-C1 Float Control for additional information.

MODEL

Schematic Diagram

Item Description 1 100-01 Hytrol Main Valve 2 CF1-C1 Float Control

Optional Features

Item Description A X46A Flow Clean Strainer B CK2 Isolation Valve C CV Flow Control (Closing) F Independent Operating Pressure P X141 Pressure Gauge S CV Speed Control (Opening) V X101 Valve Position Indicator Y X43 "Y" Strainer

124-01 (Sizes 1/2"-6" / 15 - 150 mm)

Installation A stilling well (8" / 300mm minimum diameter) must be provided around the float. When the valve is mounted on top of the tank roof, a 2" (50mm) clearance hole should be provided for side movement of the float rod where the rod goes through the top of the tank.

A clear independent source of air or water may be used to operate the valve (option F). The pressure from this independent source must at all times be equal to or greater than pressure at the valve inlet.If minimum flowing line pressure is less than 10 psi, consult factory.

If the float control is remotely mounted from the main valve, the control may be installed at any elevation above the valve, provided the flowing line pressure in psi is greater than the vertical distance in feet between the valve and the float control. See the technical data sheet on Model CF1-C1 for additional information.

Typical Application The Model 124-01 Float Valve is commonly mounted above the high water level in a tank. Globe pattern valves are supplied standard with the float control mounted on the cover as illustrated, with a horizontal discharge.

Angle pattern valves are configured to discharge downward.

Notes:

1. We recommend protecting tubing and valve from freezing temperatures.

2. Must be inspected periodically.

Valve Size (Inches) 1⁄2 * 3⁄4 * 1 * 1 1 1⁄4 1 1⁄2 2 2 1⁄2 3 4 6 A Threaded 3.50 3.50 5.12 7.25 7.25 7.25 9.38 11.00 12.50 — —

AA 150 ANSI — — — — — 8.50 9.38 11.00 12.00 15.00 20.00

AAA 300 ANSI — — — — — 9.00 10.00 11.62 13.25 15.62 21.00

AAAA Grooved End — — — — — 8.50 9.00 11.00 12.50 15.00 20.00 B Diameter 3.12 3.12 4.38 5.62 5.62 5.62 6.62 8.00 9.12 11.50 15.75 C Maximum 5.88 5.88 6.25 5.50 5.50 5.50 6.50 7.56 8.19 10.62 13.38 CC Maximum Grooved End — — — — — 4.75 5.75 6.88 7.25 9.31 12.12 D Threaded — — — 3.25 3.25 3.25 4.75 5.50 6.25 — —

DD 150 ANSI — — — — — 4.00 4.75 5.50 6.00 7.50 10.00

DDD 300 ANSI — — — — — 4.25 5.00 5.88 6.38 7.88 10.50

DDDD Grooved End — — — — — — 4.75 — 6.00 7.50 — E 0.88 0.88 1.63 1.12 1.12 1.12 1.50 1.69 2.06 3.19 4.31 EE Grooved End — — — — — 2.00 2.50 2.88 3.12 4.25 6.00

F 150 ANSI — — — — — 2.50 3.00 3.50 3.75 4.50 5.50

FF 300 ANSI — — — — — 3.06 3.25 3.75 4.13 5.00 6.25

G Threaded — — — 1.88 1.88 1.88 3.25 4.00 4.50 — —

GG 150 ANSI — — — — — 4.00 3.25 4.00 4.00 5.00 6.00

GGG 300 ANSI — — — — — 4.25 3.50 4.31 4.38 5.31 6.50

GGGG Grooved End — — — — — — 3.25 — 4.25 5.00 — H NPT Body Tapping 0.125 0.125 0.25 0.375 0.375 0.375 0.375 0.50 0.50 0.75 0.75 J NPT Cover Center Plug 0.125 0.125 0.25 0.25 0.25 0.25 0.50 0.50 0.50 0.75 0.75 K NPT Cover Tapping 0.125 0.125 0.25 0.375 0.375 0.375 0.375 0.50 0.50 0.75 0.75 Stem Travel — — — 0.40 0.40 0.40 0.60 0.70 0.80 1.10 1.70 Approx. Ship Weight (lbs) 3 8 8 15 15 15 35 50 70 140 285

GGGG

DDDDInlet

AAAA

100-01 Grooved

EE

CC

(MAX)

K

J

H

Inlet Outlet

B (Diameter)

Model 124-01 (Uses 100-01 Hytrol Main Valve)

Model 124-01 Dimensions (inches)

Component Standard Material Combinations

Body & Cover Ductile Iron Cast Steel Bronze

Available Sizes (inches) 1⁄2" - 6" 1⁄2" - 6" 1⁄2" - 6"

Available Sizes (mm) 15 - 150 15 - 150 15 - 150

Disc Retainer & Diaphragm Washer Cast Iron Cast Steel Bronze

Trim: Disc Guide, Seat & Cover Bearing

Bronze is Standard Stainless Steel is Optional

Disc Buna-N® Rubber

Diaphragm Nylon Reinforced Buna-N® Rubber

Stem, Nut & Spring Stainless Steel

For material options not listed, consult factory.

Cla-Val manufactures valves in more than 50 different alloys.

Materials

Pressure Ratings (Recommended Maximum Pressure - psi)

Y

Z

G

GG

GGG

DInlet

DD

DDD

F

FF

X

100-01 Threaded &

Flanged

A

E

C

(MAX)

K

J

H

Inlet Outlet

AA

AAA

B (Diameter)

Valve Body & Cover Pressure Class

Flanged Grooved Threaded

Grade Material

ANSI

Standards*

Class

Class

Class End‡

Details

ASTM A536 Ductile Iron B16.42 250 400 400 400

ASTM A216-WCB Cast Steel B16.5 285 400 400 400

UNS 87850 Bronze B16.24 225 400 400 400

Note: * ANSI standards are for flange dimensions only.

Flanged valves are available faced but not drilled.

‡ End Details machined to ANSI B2.1 specifications.

Valves for higher pressure are available; consult factory for details

* Non Guided Stem

Model 124-01 Dimensions (mm)

Model 124-01 Metric Dimensions (Uses 100-01 Hytrol Main Valve)

GGGG

DDDDInlet

AAAA

100-01 Grooved

EE

CC

(MAX)

K

J

H

Inlet Outlet

B (Diameter)

G

GG

GGG

DInlet

DD

DDD

F

FF

X

100-01 Threaded &

Flanged

A

E

C

(MAX)

K

J

H

Inlet Outlet

AA

AAA

B (Diameter)

Valve Size (mm) 15 * 20 * 25 * 25 32 40 50 65 80 100 150 A Threaded 89 89 130 184 184 184 238 279 318 — —

AA 150 ANSI — — — — — 216 238 279 305 381 508

AAA 300 ANSI — — — — — 229 254 295 337 397 533

AAAA Grooved End — — — — — 216 228 279 318 381 508 B Diameter 80 80 111 143 143 143 168 203 232 292 400 C Maximum 149 149 159 140 140 140 165 192 208 270 340 CC Maximum Grooved End — — — — — 120 146 175 184 236 308 D Threaded — — — 83 83 83 121 140 159 — —

DD 150 ANSI — — — — — 102 121 140 152 191 254

DDD 300 ANSI — — — — — 108 127 149 162 200 267

DDDD Grooved End — — — — — — 121 — 152 191 — E 23 23 42 29 29 29 38 43 52 81 110 EE Grooved End — — — — — 52 64 73 79 108 152

F 150 ANSI — — — — — 64 76 89 95 114 140

FF 300 ANSI — — — — — 78 83 95 105 127 159

G Threaded — — — 48 48 48 83 102 114 — —

GG 150 ANSI — — — — — 102 83 102 102 127 152

GGG 300 ANSI — — — — — 102 89 110 111 135 165

GGGG Grooved End — — — — — — 83 — 108 127 — H NPT Body Tapping 0.125 0.125 0.25 0.375 0.375 0.375 0.375 0.50 0.50 0.75 0.75 J NPT Cover Center Plug 0.125 0.125 0.25 0.25 0.25 0.25 0.50 0.50 0.50 0.75 0.75 K NPT Cover Tapping 0.125 0.125 0.25 0.375 0.375 0.375 0.375 0.50 0.50 0.75 0.75 Stem Travel — — — 10 10 10 15 18 20 28 43 Approx. Ship Weight (kgs) 1.4 1.4 6 7 7 7 16 23 32 64 129

YZ

* Non Guided Stem

Installation Data The float control is mounted above the high water level in the tank. The valve is installed in the l ine leading to the tank and is connected to the float control pilot by tubing.

(Min. 3⁄8" tubing)

When line pressure is used to operate the valve, tubing connections are made from the float control pilot to the valve cover, and also to the inlet side of the valve. An X46 Flow Clean Strainer must be installed in the inlet side of the valve. The control may be installed at any elevation above the valve, providing that the flowing line pressure in psi is equal to, or greater than, the vertical distance in feet between the valve and the float control.

A clean independent source of air or water may be used to operate the valve. The pressure from this independent source must constantly be equal to or greater than pressure at the valve inlet. The independent source is connected to the float control pilot in place of the supply line connected to the inlet side of the valve. If the Model 100-01 under the control of the CF1-C1 is 8" or larger, auxil iary Hytrol valves may be required. Consult factory for details.

Stilling Well

Flow

CF1-C1

X43 or X46 Strainer

Note: We recommend protecting Float Control tubing and valve from freezing temperatures.

CLA-VAL 1701 Placentia Ave • Costa Mesa CA 92627 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: info@cla-val.com • www.cla-val.com Copyright Cla-Val • Printed in USA • Specifications subject to change without notice.©

Float Rod Standard: Two 12" (300mm) sections PVC rod, 6" (150 mm) & smaller

12" (300mm) extension increments at additional cost.

Larger counterweight required if float rod length exceeds 5' (1524mm).

Optional: 24" (600mm) stainless steel rod, with 24" (600mm) extension increments at additional cost.

Larger counterweight required if float rod length exceeds 2' (600mm).

If maximum temperature exceeds 160°F (71°C) specify stainless steel float rod.

Adjustment Range

Level Differential:

1" min. to 18" max.(25 - 450mm) with PVC rod.

1" min to 40" max. (25 - 1016mm) with stainless steel rod.

Operating Fluids Clean liquids or gases compatible with specified materials.

When Ordering, Please Specify

1. Catalog No. 124-01

2. Valve Size

3. Pattern - Globe or Angle

4. Pressure Class

5. Threaded or Flanged

6. Float Rod Material and Length

7. Float Ball Material

8. Desired Options

9. When Vertically Installed

Pilot System Specifications

E-124-01 (R-04/2022)

Pilot System Dimensions

Globe Pattern 1/2" to 6"

124-01Float Valve (Globe)

124-01Float Valve (Angle)

Y

Z

X

Size 1⁄2"-3⁄4"

(15 - 20mm) 1"

(25 mm) 11⁄4"-11⁄2"

(32 - 40 mm) 2"

(50 mm) 21⁄2"

(65 mm) 3"

(80 mm) 4"

(100 mm) 6"

(150 mm)

X 2.50" (65 mm)

5.50" (140 mm)

6.00" (150 mm)

6.25" (160 mm)

6.75" (170 mm)

7.25" (180 mm)

8.00" (200 mm)

10.25" (260 mm)

Y 4.25" (108 mm)

4.75" (120 mm)

6.75" (170 mm)

7.00" (178 mm)

7.75" (197 mm)

8.25" (210 mm)

9.50" (240)

10.50" (265 mm)

Z (MAX)* 29.75"

(756 mm)

28.50" (724 mm)

28.25" (718 mm)

28.50" (724 mm)

28.75" (730 mm)

29.00" (737 mm)

29.25" (743 mm)

29.25" (743 mm)

Size 11⁄2" (40 mm)

2" (50 mm)

21⁄2" (65 mm)

3" (80 mm)

4" (100 mm)

6" (150 mm)

X 6.00" (150 mm)

6.25" (160 mm)

6.75" (170 mm)

7.25" (180 mm)

8.25" (210 mm)

10.50" (265 mm)

Y 6.75" (170 mm)

7.00" (178 mm)

7.75" (197 mm)

7.06" (179 mm)

9.00" (230 mm)

10.00" (254 mm)

Z (MAX)* 28.25"

(718 mm)

28.50" (724 mm)

28.75" (730 mm)

29.00" (737 mm)

29.25" (743 mm)

29.25" (743 mm)

Pressure Rating 300 psi Max.

Temperature Rating Water: to 180°F (82°C) Maximum

Materials

In contact with operating fluid:

Nylon-reinforced Delrin,Stainless Steel, Monel, with Buna-N® seals Float linkage and float rod: Brass and PVC Base plate: 316 Stainless Steel Float: 304 Stainless Steel

Float 53/8" (180mm) diameter.

124-01 Valve

Selection

100-01 Pattern: Globe (G), Angle (A), End Connections: Threaded (T), Grooved (GR), Flanged (F) Indicate Available Sizes

Inches 1⁄2 3⁄4 1 11⁄4 11⁄2 2 21⁄2 3 4 6 8 10 12 14 16 18 20 24 mm 15 20 25 32 40 50 65 80 100 150 200 250 300 350 400 450 500 600

Main Valve 100-01

Pattern G G G, A G, A G, A G, A G, A G, A G, A G, A

See the 124-02/624-02 Technical Data Sheet for larger sizes.

End Detail T T T T T, F, Gr*

T, F, Gr

T, F, Gr*

T, F, Gr

F, Gr

F, Gr*

Suggested Flow (gpm)

Maximum 19 33 55 93 125 210 300 460 800 1800

Maximum Intermittent 24 42 68 120 160 260 370 580 990 2250

Suggested Flow

(Liters/Sec)

Maximum 1.2 2.1 3.5 6 8 13 19 29 50 113

Maximum Intermittent 1.5 2.6 4.3 7.6 10 16 23 37 62 142

100-01 Series is the full internal port Hytrol. *Globe Grooved Only

Notes:

1) *Z (Max.) is with standard float rod.

2) We recommend providing adequate space around valve for maintenance work

3) Dimensions cover Threaded, Flanged and Grooved connections.

Angle Pattern 1 1/2" to 6" x

Y

Z

File details come from the government source that posted it. Updated .