APHIS Renderer Chesterton Mechanical Seals information.pdf

CHESTERTON®

280™ Heavy Duty Dual Cartridge Seal

ISO 14000:1996 and ISO 9001:2000 CERTIFIED

Upgrade to the new standard for reliability in heavy duty dual cartridge sealing

Self-centering, self-aligning dual seal

Vibration-isolated faces

Tight concentric tracking for ideal face mating prevents wiping or run-out

Ideal for viscous, sticky, or polymerizing fluid applications

Exclusive, unrestricted dual balance for reliability even at elevated pressures

280TM Heavy Duty Dual Cartridge Seal

Upgrade to the new, higher level of reliability and performance in Heavy Duty Dual Cartridge Sealing

The CHESTERTON 280 Heavy Duty Dual Cartridge Seal is specifically designed to handle demanding, high torque applications.This superior, high performance product is an ideal selection for such difficult applications as high concentration black liquor, hard-to-seal monomers such as actrylonitrile, vinyl chloride monomer, and any other potentially solidifying liquids and latex.The 280 provides superior value when used in tough chemical slurries that require non-diluting environmental control and where vibration could occur.

Maximum slurry handling capability Patented Self-Centering Lock Ring™ – This mechanism enables the seal faces to run true even if the stuffing box facing is not perpendicular to the shaft, thereby promoting reduced water usage and longer seal life.This extends the life of the secondary seals because there is no cyclical movement of the seal faces.The seal faces are isolated from unknown vibration such as poor alignment, shaft deflection, cavitation, piping or similar sources.

The 280 helps ensure longer life and reliable sealing.

Monolithic Seal Faces – The 280 seal is the only self-centering, self-aligning dual seal with vibration-isolated faces. Its exclusive, unrestricted dual balance means greater reliability even at elevated temperatures.

The faces maintain flatness during pressure and temperature changes preventing leakage during process upsets and intermittent operation. The result is a higher reliability, longer-life seal.

Enhanced thermal control Unrestricted Dual Pressure Balance – The 280 provides for a 75% ratio for double or tandem barrier mode, while an instantaneous shift prevents opening under system upset conditions. The seal can run with high pressure both inside and outside because the seal balance is optimized to both the ID and OD pressure.

Internal Barrier Channel – The internal pumping system provides efficient barrier fluid flow and heat removal away from the faces. The heat transfers into barrier fluid, not into the process, for high capacity cooling.

Seal Rings Located for Optimum Heat Dissipation – The increased radial clearance provides efficient barrier fluid flow and heat removal.

High torque capability O-ring Support – The 280 provides O-ring support by locating every O-ring on the OD of the seal rings to prevent compression hang-up under elevated temperatures. This provides cushion and support during high torque start-ups. This configuration allows the O-rings to slide to a clean surface for maximum slurry capability.

Cushioned High-Strength Drives – The 280’s corrugated graphite cushioned drive prevents face damage from high-torque start-ups and viscous shearing forces that are associated with sealing sticky products. The inboard shroud provides physical protection to the seal ring and a smooth surface for O-ring travel.

Direct Centering Clips – The centering clips on the 280 prevent the seal surfaces from wiping across each other, thereby keeping the faces free of dirt particles.

This allows better face tracking and makes the seal more tolerant to shaft deflection and other adverse operating conditions.

When you see CHESTERTON, you see the future of sealing.

Every O-ring is located on the OD of the seal rings to prevent compression hang-up under elevated temperatures. All move to a clean micro-polished surface to reduce hysteresis.

Inboard shroud provides physical protection to the seal ring and a smooth surface for O-ring travel.

Inboard rotary and stationary faces. Dynamic stress-relieving seal rings with rotating narrow face designed to prevent contaminant intrusion.

Barrier fluid channel with built-in cutwaters for enhanced pumping action and fluid exchange.

Large bore barrier fluid ports provide high capacity cooling.

Increased radial clearances provide efficient barrier fluid flow and heat removal.

Outboard stationary and rotary faces, identical to inboard set for simple assembly, low replacement inventory.

Corrugated graphite cushioned drive prevents face damage from high torque start-ups and viscous shearing forces.

Construction Details

SEE DETAIL

DETAIL

Centering clips locate the stationary seal rings directly to the shaft for a truly centered seal.

Direct centering minimizes seal face wiping and runout for maximum slurry capability.

Patented Self-Centering Lock Ring™ mechanism locks the 280 to the shaft, automatically aligning the faces with the shaft. The revolutionary Unified Seal Face Alignment then allows all 4 faces to maintain perpendicularity to the shaft centerline and minimize the effects of stuffing box face misalignment.

SHAFT GLAND STUFFING SB OB BOLT CIRCLE

SIZE OD BOX BORE DEPTH LENGTH BY BOLT SIZE

280 OVERSIZE – Dimensional Data/Inch

A B C C E F G MIN

MAX MIN MAX MIN MAX 3/8" 1/2" 5/8" 3/4" 7/8"

SHAFT GLAND STUFFING SB OB BOLT CIRCLE

SIZE OD BOX BORE DEPTH LENGTH BY BOLT SIZE

280 STANDARD – Dimensional Data/Inch

A B C C E F G MIN

MAX MIN MAX MIN MAX 3/8" 1/2" 5/8" 3/4"

1.000 4.11 1.75 2.01 1.58 2.13 2.88 – – –

1.125 4.11 1.88 2.04 1.58 2.13 2.88 – – –

1.250 4.11 2.00 2.27 1.58 2.13 3.14 – – –

1.375 4.36 2.13 2.33 1.58 2.13 3.13 3.25 – –

1.500 4.49 2.25 2.44 1.58 2.13 3.33 3.45 – –

1.625 4.99 2.38 2.69 1.58 2.13 3.52 3.65 – –

1.750 5.49 2.50 2.81 1.58 2.13 3.65 3.77 – –

1.875 5.49 2.63 2.94 1.58 2.13 3.78 3.90 – –

2.000 5.49 2.75 3.19 1.58 2.13 4.03 4.15 – –

2.125 5.99 2.88 3.44 1.58 2.13 4.28 4.41 4.53 –

2.250 5.99 3.00 3.56 1.58 2.13 4.40 4.53 4.65 –

2.375 5.99 3.13 3.59 1.58 2.13 4.46 4.59 4.71 –

2.500 6.49 3.25 3.81 1.58 2.13 4.65 4.78 4.90 –

2.625 6.45 3.63 3.93 2.05 2.50 – 5.02 5.15 –

2.750 7.70 3.75 4.44 2.05 2.50 – 5.42 5.55 –

2.875 7.83 3.88 4.56 2.05 2.50 – 5.50 5.62 –

3.000 7.94 4.00 4.69 2.05 2.50 – 5.65 5.77 –

3.125 7.99 4.13 4.81 2.05 2.50 – 5.80 5.92 –

3.250 8.19 4.25 4.94 2.05 2.50 – 5.93 6.05 –

3.375 8.30 4.38 5.06 2.05 2.50 – 6.02 6.14 6.27

3.500 8.44 4.50 5.19 2.05 2.50 – 6.18 6.31 6.43

3.625 8.49 4.63 5.31 2.05 2.50 – 6.31 6.44 6.56

3.750 8.71 4.75 5.44 2.05 2.50 – 6.38 6.51 6.63

3.875 8.84 4.88 5.56 2.05 2.50 – 6.52 6.64 6.77

4.000 8.96 5.00 5.69 2.05 2.50 – 6.66 6.78 6.91

4.125 8.99 5.13 5.81 2.05 2.50 – 6.79 6.90 7.03

4.250 8.99 5.25 5.94 2.05 2.50 – 6.91 7.04 7.16

4.375 9.33 5.38 6.06 2.05 2.50 – 7.03 7.15 7.28

4.500 9.49 5.50 6.19 2.05 2.50 – 7.18 7.30 7.43

4.625 9.49 5.63 6.31 2.05 2.50 – 7.28 7.40 7.53

4.750 10.49 5.75 6.44 2.05 2.50 – 7.40 7.53 7.65

1.375 5.40 2.81 3.00 1.58 2.13 4.03 – – – –

1.750 6.64 3.50 3.75 1.58 2.13 5.21 5.33 5.46 – –

1.875 5.99 3.56 3.81 1.58 2.13 – 5.00 – – –

2.125 6.99 3.88 4.25 1.58 2.13 – – 5.95 – –

2.500 7.77 4.50 4.75 1.58 2.13 – – 6.75 – –

2.625 6.98 4.55 4.88 2.05 2.50 – – 6.00 – –

2.750 7.89 4.45 4.56 2.05 2.50 – – – 6.38 –

3.000 8.64 4.93 5.17 2.05 2.50 – – 7.00 7.13 7.25

3.375 8.39 4.95 5.06 2.05 2.50 – – – 6.88 –

3.750 9.76 5.08 6.18 2.05 2.50 – – 8.25 – –

4.125 9.76 5.95 6.06 2.05 2.50 – – – – 8.00

4.500 12.49 6.75 7.25 2.05 2.50 – – – 10.76 –

4.750 11.39 7.20 7.42 2.05 2.50 – – 9.88 10.00 –

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OPERATING LIMITS

Speed Limits:

■ To 4000 fpm (20 m/s)

Temperature Limits:

■ To 300°F (150°C) Ethylene Propylene

■ To 400°F (205°C) Fluorocarbon, AFLAS†

■ To 500°F (260°C) Perfluoroelastomer

Pressure Limits:

■ To 600 psi (40 bar) inboard, 250 psi (17 bar) outboard. Up to 4.750" (120mm) shaft size

■ To 300 psi (20 bar) inboard, 200 psi (13 bar) outboard. Up to 8.000" (200mm) shaft size Minimum Barrier Fluid Pressure:

■ 30 psi (2 bar) minimum barrier fluid pressure recommended to properly lubricate outboard seal

STANDARD MATERIALS**

Rotary Faces:

■ Carbon, Silicon Carbide,Tungsten Carbide

Stationary Faces:

■ Silicon Carbide,Tungsten Carbide

Elastomers:

■ Fluorocarbon, AFLAS† or EPR installed

All Metal Parts:

■ 316SS

Springs:

■ Hastelloy C*

† Asahi Glass Company Ltd. Registered Trademark.

* Haynes International, Inc. Registered Trademark.

** Other materials upon request.

Specifications

SHAFT GLAND STUFFING SB OB BOLT CIRCLE

SIZE OD BOX BORE DEPTH LENGTH BY BOLT SIZE

280 STANDARD – Dimensional Data/Metric

A B C C E F G MIN

MAX MIN MAX MIN MAX 10 MM 12 MM 16 MM 20 MM

25 104 44 51 40 54 73 – – –

28 104 47 52 40 54 73 – – –

30 104 49 56 40 54 78 – – –

32 104 51 57 40 54 80 – – –

33 113 52 58 40 54 81 83 – –

35 111 54 59 40 54 80 82 – –

38 114 57 61 40 54 85 87 – –

40 127 59 68 40 54 90 92 – –

43 127 62 68 40 54 91 93 – –

45 139 64 73 40 54 95 97 – –

48 139 67 73 40 54 96 98 – –

50 139 69 78 40 54 100 102 – –

55 152 74 83 40 54 105 107 111 –

60 152 79 91 40 54 114 116 120 –

65 164 92 100 52 63 – 127 131 –

70 196 96 113 52 63 – 137 141 –

75 202 102 119 52 63 – 143 147 –

80 203 106 122 52 63 – 150 154 –

85 211 111 129 52 63 – 152 156 161

90 214 116 132 52 63 – 160 164 168

95 221 121 138 52 63 – 161 165 170

100 228 127 144 52 63 – 168 172 177

110 237 137 154 52 63 – 178 182 186

120 266 146 163 52 63 – 187 191 195

SHAFT GLAND STUFFING SB OB BOLT CIRCLE

SIZE OD BOX BORE DEPTH LENGTH BY BOLT SIZE

280 MIXER – Dimensional Data/Inch

A B C C E F G MIN

MAX MIN MAX MIN MAX 3/8" 1/2" 5/8" 3/4" 7/8" 1" 1 1/8"

1.000 4.11 2.00 2.04 1.58 2.13 2.88 – – – – – –

1.125 4.11 2.12 2.27 1.58 2.13 3.14 – – – – – –

1.250 4.36 2.25 2.33 1.58 2.13 3.14 3.26 – – – –

1.375 4.49 2.37 2.44 1.58 2.13 3.33 3.46 – – – – –

1.500 4.99 2.50 2.69 1.58 2.13 3.53 3.66 – – – – –

1.625 5.49 2.62 2.81 1.58 2.13 3.65 3.78 – – – – –

1.750 5.49 2.75 2.94 1.58 2.13 3.78 3.91 – – – – –

1.875 5.49 2.87 3.19 1.58 2.13 4.03 4.16 – – – – –

2.000 5.99 3.00 3.44 1.58 2.13 4.28 4.41 4.53 – – – –

2.125 5.99 3.12 3.56 1.58 2.13 4.40 4.53 4.65 – – – –

2.250 5.99 3.25 3.62 1.58 2.13 4.46 4.59 4.71 – – – –

2.375 6.49 3.37 3.81 1.58 2.13 4.65 4.78 4.90 – – – –

2.500 7.70 4.00 4.44 2.05 2.50 – 5.42 5.55 – – – –

2.625 7.83 4.12 4.56 2.05 2.50 – 5.50 5.62 – – – –

2.750 7.94 4.25 4.69 2.05 2.50 – 5.65 5.77 – – – –

2.875 7.99 4.37 4.81 2.05 2.50 – 5.80 5.92 – – – –

3.000 8.19 4.50 4.94 2.05 2.50 – 5.93 6.05 – – – –

3.125 8.30 4.62 5.06 2.05 2.50 – 6.02 6.14 6.27 – – –

3.250 8.44 4.75 5.19 2.05 2.50 – 6.18 6.31 6.43 – – –

3.375 8.49 4.87 5.31 2.05 2.50 – 6.31 6.44 6.56 – – –

3.500 8.71 5.00 5.44 2.05 2.50 – 6.38 6.51 6.63 – – –

3.625 8.84 5.12 5.56 2.05 2.50 – 6.52 6.64 6.77 – – –

3.750 8.96 5.25 5.69 2.05 2.50 – 6.66 6.78 6.91 – – –

3.875 8.99 5.37 5.81 2.05 2.50 – 6.79 6.90 7.03 – – –

4.000 8.99 5.50 5.94 2.05 2.50 – 6.91 7.05 7.16 – – –

4.125 9.33 5.62 6.06 2.05 2.50 – 7.03 7.15 7.28 – – –

4.250 9.49 5.75 6.19 2.05 2.50 – 7.18 7.30 7.43 – – –

4.375 9.49 5.87 6.31 2.05 2.50 – 7.28 7.40 7.53 – – –

4.500 10.49 6.00 6.44 2.05 2.50 – 7.40 7.53 7.65 – – –

4.750 10.98 6.75 – 3.25 4.09 – – – – 8.92 9.04 9.17

5.000 11.23 7.00 – 3.25 4.09 – – – – 9.17 9.29 9.42

5.250 11.48 7.25 – 3.25 4.09 – – – – 9.42 9.54 9.67

5.500 11.73 7.50 – 3.25 4.09 – – – – 9.67 9.79 9.92

5.750 11.98 7.75 – 3.25 4.09 – – – – 9.92 10.04 10.17

6.000 12.23 8.00 – 3.25 4.09 – – – – 10.17 10.29 10.42

6.250 12.48 8.25 – 3.25 4.09 – – – – 10.42 10.54 10.67

6.500 12.73 8.50 – 3.25 4.09 – – – – 10.67 10.79 10.92

6.750 12.98 8.75 – 3.25 4.09 – – – – 10.92 11.04 11.17

7.000 13.23 9.00 – 3.25 4.09 – – – – 11.17 11.29 11.42

7.250 13.48 9.25 – 3.25 4.09 – – – – 11.42 11.54 11.67

7.500 13.73 9.50 – 3.25 4.09 – – – – 11.67 11.79 11.92

7.750 13.98 9.75 – 3.25 4.09 – – – – 11.92 12.04 12.17

8.000 14.23 10.00 – 3.25 4.09 – – – – 12.17 12.29 12.42

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1.000 - 2.500 25-60 1750 250 17 Tank

1.000 - 2.500 25-60 3500 100 6.5 Tank

1.000 - 2.500 25-60 3500 100-250 6.5-17 Tank/Water Cooled

2.625 - 4.750 65-120 1750 100 6.5 Tank

2.625 - 4.750 65-120 1750 100-250 6.5-17 Tank/Water Cooled

2.625 - 4.750 65-120 3500 100 6.5 Tank/Water Cooled

2.625 - 4.750 65-120 3500 100-250 6.5-17 Forced Circulation

5.000 - 8.000 130-200 200 200 13 Tank/Water Cooled

5.000 - 8.000 130-200 875 100 6.5 Tank/Water Cooled

5.000 - 8.000 130-200 875 100-200 6.5-13 Forced Circulation

5.000 - 8.000 130-200 1750 200 13 Forced Circulation

SHAFT SPEED BARRIER FLUID BARRIER FLUID

SIZE MAX. PRESSURE SYSTEM

Use of Barrier Fluid Systems*

INCH METRIC RPM PSI BAR RECOMMENDATION

* Recommended barrier fluid system for various shaft sizes and operating conditions with 100°F (38°C) process fluid.

Recommendations are based on water or water/glycol mixture as the barrier fluid.

Use of oil as a barrier fluid, or applications with high temperature process fluids will reduce maximum barrier fluid pressure.

Applications with process temperatures in excess of 150°F (66°C) will require a water cooled barrier fluid tank or forced circulation system for optimum performance.

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SHAFT GLAND STUFFING SB OB BOLT CIRCLE

SIZE OD BOX BORE DEPTH LENGTH BY BOLT SIZE

280 MIXER – Dimensional Data/Metric

A B C C E F G MIN

MAX MIN MAX MIN MAX 8 MM 10 MM 12 MM 16 MM 20 MM 24 MM 30 MM

35 114 60 62 40 54 85 88 – – – – –

38 127 63 68 40 54 90 93 – – – – –

60 165 86 97 40 54 118 121 124 – – – –

65 199 102 116 52 63 – – 140 143 – – –

70 202 108 119 52 63 – – 144 147 – – –

75 208 114 125 52 63 – – 151 154 – – –

80 211 117 129 52 63 – – 153 156 159 – –

85 216 124 135 52 63 – – 160 164 167 – –

90 225 130 141 52 63 – – 166 169 172 – –

95 228 133 144 52 63 – – 169 172 176 – –

100 228 140 151 52 63 – – 176 179 182 – –

110 241 149 160 52 63 – – 185 188 191 – –

120 279 171 – 83 104 – – – – 227 230 236

130 292 184 – 83 104 – – – – 239 242 248

140 298 191 – 83 104 – – – – 246 249 255

150 311 203 – 83 104 – – – – 258 261 267

160 323 216 – 83 104 – – – – 271 274 280

170 330 222 – 83 104 – – – – 277 280 286

180 342 235 – 83 104 – – – – 290 293 299

190 349 241 – 83 104 – – – – 296 299 305

200 361 254 – 83 104 – – – – 309 312 318

280™ Heavy Duty Dual Cartridge Seal

Universal applicability The 180 Single Cartridge and 280 Dual Cartridge Seals have been designed to be rugged performers in sealing applications across industry segments.

Having undergone a rigorous in-house and field testing program, the 180 and 280 are proven in applications ranging from light hydrocarbon service to sand slurry and many things in between. They are proven performers for plant-wide standardization providing maximum reliability. Use the 180 Single Seal and the 280 Dual Seal to solve your sealing problems today.

180™ Single Cartridge Seal 280™ Dual Cartridge Seal

280 Mixer Seal option puts high reliability in motion Every aspect of the CHESTERTON 280 design is optimized for high reliability in demanding conditions.

The 280 “motion tolerant” Dual Seal withstands run-out and end-play common to mixers, double-ended or vertical turbine pumps and other rotating equipment.

Instant pressure shift capability eliminates worries under jarring purge and reverse pressure cycles.

Vibration isolated faces thrive under conditions of drag and shear that destroy common seals. Internal cooling results in stable, long-life sealing.

Radial motion capabilities Small sizes 0.060" (1,50mm) TIR Large sizes 0.188" (5,00mm) TIR Extra Large sizes 0.250" (6,00mm) TIR

Axial motion capabilities Small sizes ± 0.060" (1,50mm) Large sizes ± 0.075" (1,90mm) Extra Large sizes ± 0.125" (3,00mm)

Optional “Motion Tolerant”

280 Mixer Seal

DISTRIBUTED BY:

FORM NO. 070520 REV. 5 PRINTED IN USA 5/03

Middlesex Industrial Park, 225 Fallon Road Stoneham, Massachusetts 02180-9101 USA Telephone: 978-469-6446 Fax: 978-469-6594 www.chesterton.com

© A. W.CHESTERTON CO., 2003. All rights reserved.

® Registered trademark owned and licensed by

A. W.CHESTERTON CO. in USA and other countries.

The following are trademarks of A. W. Chesterton Company:

Self-Centering Lock Ring, Unified Seal Alignment, 180, 280.

Preparation Determine if the pump is in good condition.

A. Check the shaft or sleeve.

1. Remove all burrs and sharp corners, especially in areas where the o-ring has to slide. Cover threads and keyway slots with a thin tape to prevent cutting the o-ring. The distance from the stuffing box face to the center of the o-ring groove is approximately: 1.50'' (38,1 mm) for 1.000" through 2.500" (25 mm through 60 mm); 2.00'' (50,8 mm) for 2.625" through 4.750" (65 mm through 120 mm); 3.00" (76,2 mm) for 5.000" through 8.000" (130 mm through 200 mm); 4.00'' (101,6 mm) for 8.250" through 12.000" (210 mm through 300 mm).

2. The shaft finish should be 32 microinches RA (0,8 microns) maximum. It should feel smooth if you run your fingernail down it axially.

3. Make sure the shaft or sleeve diameter is within +/-.002" (0,05 mm) of nominal.

4. Use a dial indicator to measure the shaft runout in the area where the seal is to be installed. (Readings should not exceed .001" (0,03 mm) TIR per inch of shaft diameter.)

5. Place the dial indicator on the end of the shaft and alternately push and pull the shaft axially to measure end play.

End play should not exceed .005" (0,12 mm) TIR.

6. Protect the sleeve o-ring by lubricating the shaft with a clean silicone based lubricant, as that provided with the seal.

B. Check the stuffing box.

1. The stuffing box face must be a maximum of 125 microinches RA (3,2 microns) for a gasket to seal.

2. Split case pumps will sometimes cause a step (misalignment) to occur on the stuffing box face. This step must be machined flat.

3. Make sure the stuffing box is clean and clear along it’s entire length.

4. If possible, attach a base dial indicator to the shaft and rotate both the indicator and shaft slowly while reading the runout of the stuffing box face.

Misalignment of the stuffing box face relative to the shaft should not exceed .005" (0,12 mm) TIR per inch of shaft diameter.

Installation

1. Check the chemical listing to determine if the o-rings installed in this seal are compatible with the fluid being sealed.

2. The 1/4 dog point set screws go into the small holes in the sleeve. Do not disengage these screws from the sleeve when positioning the seal. The cup point set screws go through the larger holes in the sleeve. Make sure all screws are engaged in the sleeve but do not protrude into the ID bore. Also, when repositioning or removing the seal, make sure the centering clips and socket head cap screws are engaged.

3. The centering clips have been preset at the factory. If for any reason you loosen or remove the centering clip cap screws, re-tighten each cap screw finger tight (approximately 15 inch-pounds [1,7 Nm] of torque).Make sure that the lip on the end of the centering clip is inside the gland groove.

4. CAUTION: If the seal is operating at a stuffing box pressure over 300 psig (20 bar) or the shaft is case hardened, replace the 316SS cup point set screws with the hardened steel cup point screws supplied with the seal.

5. Slide the seal onto the shaft making sure the 1/4 dog point set screws are engaged through the seal sleeve.

6. Reassemble the pump and make necessary shaft alignments and impeller adjustments. The impeller can be reset at any time, as long as the centering clips are in place and the seal set screws are loosened while the shaft is being moved.

7. Orient the barrier fluid connections to the location required. The ports are plugged prior to shipping. Remove plugs.

8. Piping connections should not be made prior to tightening the gland bolts.

9. Tighten the gland bolts evenly.

IMPORTANT: The gland bolts must be tightened before tightening the set screws onto the shaft.

10. IMPORTANT: All 1/4 dog point set screws must be tightened FIRST.

See figures 1 and 2 below for location of dog point set screws. If rotation of the lock ring is required for tightening set screws, loosen or remove one centering clip. Finger tighten each 1/4 dog point set screw by twisting the short end of the hex key with your finger tips.

Then tighten each 1/4 dog point set screw per the recommended tightening torque shown on the chart at the bottom of page 2.

11.Once the 1/4 dog point set screws are tightened, finger tighten each set screw by twisting the short end of the hex key with your finger tips until the point of each set screw touches the shaft. Then tighten each set screw per recommended tightening torque shown on the chart at the bottom of page 2.

12.Remove socket head cap screws and centering clips. Retain for later use.

13. IMPORTANT: It is important to make sure that the gland is properly centered over the sleeve. To do this, turn the shaft by hand to make sure the seal turns freely. If you hear metal to metal contact within the seal, it was improperly centered. Replace the centering clips finger tight, loosen gland bolts, tighten clips, re-tighten gland bolts, and then remove clips.

If metal to metal contact still exists, check the centering of the stuffing box.

FLUID SEALING DIVISION

INSTALLATION INSTRUCTIONS

280™

HEAVY DUTY

CARTRIDGE DUAL SEAL

SEAL INSTALLATION

IS0 9001 CERTIFIED

14.Piping connections should not be made until the gland nuts are tightened.

15.The BARRIER FLUID CONNECTIONS are 1/4" NPT for 1.00" through 1.50" (25 mm through 38 mm), 3/8" NPT for 1.625" through 2.50" (40 mm through 60 mm), 1/2" NPT for 2.625" through 8.00" (65 mm through 200 mm), and 3/4" NPT for 8.25" through 12.00" (210 mm through 300 mm).

16.This seal is equipped with a pumping device to circulate the barrier fluid.

(The piping connections are dependent on shaft rotation.)

Direction of shaft rotation is determined when looking at the lock ring end of the seal.

SEAL INSTALLATION

SCREW AND BOLT TORQUE

Convection (when ports are positioned at 12:00)

A. CLOCKWISE shaft rotation The cool fluid from the bottom of the convection tank enters through the right port.

The hot fluid exits the seal through the left port and goes to the top of the convection tank.

Add fluid, typically 50/50 ethylene glycol and water or Chesterton 610 Synthetic Lubricating Oil, to the convection tank.

B. COUNTER-CLOCKWISE shaft rotation The cool fluid from the bottom of the convection tank enters through the left port.

The hot fluid exits the seal through the right port and goes to the top of the convection tank.

Add fluid, typically 50/50 ethylene glycol and water or Chesterton 610 Synthetic Lubricating Oil, to the convection tank.

Forced Circulation (when ports are positioned at 12:00)

A. CLOCKWISE shaft rotation The cool fluid enters through the right port.

The hot fluid exits through the left port.

B. COUNTER-CLOCKWISE shaft rotation The cool fluid enters through the left port.

The hot fluid exits through the right port.

Take all necessary precautions and follow normal safety procedures before starting equipment.

15 14 18

15 18

Figure 1 1.00"- 2.50" (Small)

25 mm - 60 mm

Figure 2 2.625"-4.75" (Large)

65 mm - 120 mm

Figure 3 5.00"-8.00" - (X Large) 120 mm - 200 mm

Figure 4 8.25"-12.00" - (Jumbo)

210 mm - 300 mm

SEAL SIZE DOG POINT SET SCREWS CUP POINT SET SCREWS STUFFING BOX BOLTS

up to 2.50" (60 mm) 50-60 in-lbf (5,7-6,8 Nm) 50-60 in-lbf (5,7-6,8 Nm) 20-30 ft-lbf (27-40 Nm) up to 4.75" (120 mm) 65-75 in-lbf (7,3-8,3 Nm) 65-75 in-lbf (7,3-8,3 Nm) 25-35 ft-lbf (34-48 Nm) up to 8.00" (200 mm) 120-135 in-lbf (13,6-15,3 Nm) 120-135 in-lbf (13,6-15,3 Nm) 40-60 ft-lbf (54-81 Nm) up to 12.00" (300 mm) None 290-310 in-lbf (32,8-35,0 Nm) As required

CAUTIONS

KEY

14 - Socket HD Cap Screw 15 - Centering Clip 16 - 1/4 Dog Pt Set Screw 17 - Lock Ring 18 - Cup Pt Set Screw

These instructions are general in nature. It is assumed that the installer is familiar with seals and certainly with the requirements of their plant for the successful use of mechanical seals. If in doubt, get assistance from someone in the plant who is familiar with seals or delay the installation until a seal representative is available. All necessary auxiliary arrangements for successful operation (heating, cooling, flushing) as well as safety devices must be employed. These decisions are to be made by the user. The chemical listing is intended as a general reference for this seal only. The decision to use this seal or any other Chesterton seal in a particular service is the customer's responsibility.

W

V

X

Y

W

X

PARTS IDENTIFICATION

STANDARD

MATERIALS**

All Metal Parts: 316 SS.

Springs: Hastelloy C* O-Rings: Fluorocarbon, AFLAS† or EPR installed Rotary Face: Carbon, Silicon Carbide, Tungsten Carbide Stationary Face: Silicon Carbide, Tungsten Carbide Temperature: To 300°F (150°C) Ethylene Propylene, to 400°F (205°C) Fluorocarbon, AFLAS, to 500°F (260°C) Perfluoroelastomer.

Speed: To 4000 FPM (20 mps).

Pressure: To 600 psi (40 bar) inboard, 250 psi (17 bar) outboard, up to 4.75" (120 mm) shaft size.

To 300 psi (20 bar) inboard, 200 psi (13 bar) outboard, up to 12.00" (300 mm) shaft size.

Minimum Barrier Fluid Pressure: 30 psi (2 bar) minimum barrier fluid pressure is recommended to properly lubricate outboard seal.

*Haynes International, Inc. Registered Trademark.

**Other materials available upon request.

†Asahi Glass Company Ltd. Registered Trademark.

KEY

1 - Gasket 2 - Lug 3 - Stationary Face 4 - Rotary Face 5 - Follower Assembly 6 - Sleeve Assembly 8 - Spring 9 - Rotary Gasket 10- Channel Clip 11- Channel 12-Port Plug

13- Gland 14- Socket Head Cap Screw 15- Centering Clip 16 -1/4 Dog Pt. Set Screw 17- Lock Ring 18 -Set Screw V - Shaft O-Ring W- Rotary O-Ring X - Stationary O-Ring Y - Lock Ring O-Ring

H

G MIN

B MAX

KEY

A - Shaft Size B -Maximum Gland Diameter C -Stuffing Box Inside Diameter D -Seal Diameter in Stuffing Box E - Minimum Stuffing Box Depth F - Outboard Seal Length G-Minimum Bolt Circle by Bolt Size H -Slot Width V - Shaft O-Ring W-Rotary O-Ring X - Stationary O-Ring Y- Lock Ring O-Ring

280 STANDARD DIMENSIONAL DATA (INCH)

E MIN F

AD

V W X X W Y

C

1 2

4 5 6

7 8 9

10 11 12

X6 X2

X2

ASSEMBLY / DISASSEMBLY

W V 4

3 3

X

X

13 14

ASSEMBLY / DISASSEMBLY

Y

19 20 21

16 17 18

5 4

2422 23

V

O-RINGS

DASH SHAFT GLAND STUFFING BOX IB SEAL SB OB BOLT CIRCLE BY SLOT LOCK

NO. SIZE OD BORE DIA DEPTH LENGTH BOLT SIZE WIDTH SHAFT ROTARY STATIONARY RING

A B C C D E F G MIN H V W X Y

MAX MIN MAX MAX MIN MAX 3/8" 1/2" 5/8" 3/4" 7/8"

-8 1.000 4.11 1.75 2.01 1.73 1.58 2.13 2.88 0.44 120 126 127 122 -9 1.125 4.11 1.88 2.04 1.85 1.58 2.13 2.88 0.44 122 128 129 124 -10 1.250 4.11 2.00 2.27 1.98 1.58 2.13 3.14 0.44 124 130 131 126 -11 1.375 4.36 2.13 2.33 2.10 1.58 2.13 3.13 3.25 0.57 126 132 133 128

-11OS 1.375 5.40 2.81 3.00 2.80 1.58 2.13 4.03 0.43 126 132 133 128

-12 1.500 4.49 2.25 2.44 2.23 1.58 2.13 3.33 3.45 0.57 128 134 135 130 -13 1.625 4.99 2.38 2.69 2.35 1.58 2.13 3.52 3.65 0.57 130 136 137 132 -14 1.750 5.49 2.50 2.81 2.48 1.58 2.13 3.65 3.77 0.57 132 138 139 134

-14OS 1.750 6.64 3.50 3.75 3.49 1.58 2.13 5.21 5.33 5.46 0.74 132 138 139 134

-15 1.875 5.49 2.63 2.94 2.60 1.58 2.13 3.78 3.90 0.57 134 140 141 136

-15OS 1.875 5.99 3.56 3.81 3.54 1.58 2.13 5.00 0.63 134 140 141 136

-16 2.000 5.49 2.75 3.19 2.73 1.58 2.13 4.03 4.15 0.57 136 142 143 138 -17 2.125 5.99 2.88 3.44 2.85 1.58 2.13 4.28 4.41 4.53 0.69 138 144 145 140

-17OS 2.125 6.99 3.88 4.25 3.87 1.58 2.13 5.95 0.75 138 144 145 140

-18 2.250 5.99 3.00 3.56 2.98 1.58 2.13 4.40 4.53 4.65 0.69 140 146 147 142 -19 2.375 5.99 3.13 3.59 3.10 1.58 2.13 4.46 4.59 4.71 0.69 142 148 149 144 -20 2.500 6.49 3.25 3.81 3.23 1.58 2.13 4.65 4.78 4.90 0.69 144 150 151 146

-20OS 2.500 7.77 4.50 4.75 4.49 1.58 2.13 6.75 0.75 144 150 151 146

-21 2.625 6.45 3.63 3.93 3.60 2.05 2.50 5.02 5.15 0.69 231 235 236 149

-21OS 2.625 6.98 4.55 4.88 4.54 2.05 2.50 6.00 0.69 231 235 236 149

-22 2.750 7.70 3.75 4.44 3.73 2.05 2.50 5.42 5.55 0.69 232 236 237 151

-22OS 2.750 7.89 4.45 4.56 4.44 2.05 2.50 6.38 0.81 232 236 237 151

-23 2.875 7.83 3.88 4.56 3.85 2.05 2.50 5.50 5.62 0.69 233 237 238 151 -24 3.000 7.94 4.00 4.69 3.97 2.05 2.50 5.65 5.77 0.69 234 238 239 152

-24OS 3.000 8.64 4.93 5.17 4.92 2.05 2.50 7.00 7.13 7.25 0.94 234 238 239 152

-25 3.125 7.99 4.13 4.81 4.10 2.05 2.50 5.80 5.92 0.69 235 239 240 152 -26 3.250 8.19 4.25 4.94 4.22 2.05 2.50 5.93 6.05 0.69 236 240 241 153 -27 3.375 8.30 4.38 5.06 4.35 2.05 2.50 6.02 6.14 6.27 0.81 237 241 242 153

-27OS 3.375 8.39 4.95 5.06 4.94 2.05 2.50 6.88 0.82 237 241 242 153

-28 3.500 8.44 4.50 5.19 4.47 2.05 2.50 6.18 6.31 6.43 0.81 238 242 243 154 -29 3.625 8.49 4.63 5.31 4.60 2.05 2.50 6.31 6.44 6.56 0.81 239 243 244 155 -30 3.750 8.71 4.75 5.44 4.72 2.05 2.50 6.38 6.51 6.63 0.81 240 244 245 155

-30OS 3.750 9.76 5.08 6.18 5.07 2.05 2.50 8.25 0.82 240 244 245 155

-31 3.875 8.84 4.88 5.56 4.85 2.05 2.50 6.52 6.64 6.77 0.81 241 245 246 155 -32 4.000 8.96 5.00 5.69 4.97 2.05 2.50 6.66 6.78 6.91 0.81 242 246 247 156 -33 4.125 8.99 5.13 5.81 5.10 2.05 2.50 6.79 6.90 7.03 0.81 243 247 248 156

-33OS 4.125 9.76 5.95 6.06 5.94 2.05 2.50 8.00 0.82 243 247 248 156

-34 4.250 8.99 5.25 5.94 5.22 2.05 2.50 6.91 7.04 7.16 0.81 244 248 249 157 -35 4.375 9.33 5.38 6.06 5.35 2.05 2.50 7.03 7.15 7.28 0.81 245 249 250 157 -36 4.500 9.49 5.50 6.19 5.47 2.05 2.50 7.18 7.30 7.43 0.81 246 250 251 158

-36OS 4.500 12.49 6.75 7.25 6.75 2.05 2.50 10.76 0.88 246 250 251 158

-37 4.625 9.49 5.63 6.31 5.60 2.05 2.50 7.28 7.40 7.53 0.81 247 251 252 158 -38 4.750 10.49 5.75 6.44 5.72 2.05 2.50 7.40 7.53 7.65 0.81 248 252 253 159

-38OS 4.750 11.39 7.20 7.42 7.19 2.05 2.50 9.88 10.00 0.82 248 252 253 159

O-RINGS

SHAFT GLAND STUFFING BOX IB SEAL SB OB BOLT CIRCLE BY SLOT LOCK

SIZE OD BORE DIA DEPTH LENGTH BOLT SIZE WIDTH SHAFT ROTARY STATIONARY RING

A B C C D E F G MIN H V W X Y

MAX MIN MAX MAX MIN MAX 10 MM 12 MM 16 MM 20 MM

25 104 44 51 44 40 54 73 11 120 126 127 121 28 104 47 52 47 40 54 73 11 122 128 129 123 30 104 49 56 49 40 54 78 11 123 129 130 125 32 104 51 57 51 40 54 80 11 124 130 131 126 33 113 52 58 52 40 54 81 83 14 125 131 132 127 35 111 54 59 54 40 54 80 82 14 126 132 133 128 38 114 57 61 57 40 54 85 87 14 128 134 135 130 40 127 59 68 59 40 54 90 92 13 129 135 136 131 43 127 62 68 62 40 54 91 93 13 131 137 138 133 45 139 64 73 64 40 54 95 97 13 133 139 140 134 48 139 67 73 67 40 54 96 98 13 134 141 142 136 50 139 69 78 69 40 54 100 102 13 136 142 143 137 55 152 74 83 74 40 54 105 107 111 17 139 145 146 140 60 152 79 91 79 40 54 114 116 120 17 142 148 149 143 65 164 92 100 91 52 63 127 131 17 231 235 236 148 70 196 96 113 95 52 63 137 141 17 232 236 237 151 75 202 102 119 101 52 63 143 147 17 234 238 239 5-557 80 203 106 122 105 52 63 150 154 17 236 239 240 153 85 211 111 129 110 52 63 152 156 161 21 237 241 242 153 90 214 116 132 115 52 63 160 164 168 21 239 242 243 154 95 221 121 138 120 52 63 161 165 170 21 240 244 245 155 100 228 127 144 126 52 63 168 172 177 21 242 246 247 5-833 110 237 137 154 136 52 63 178 182 186 21 245 249 250 157 120 266 146 163 145 52 63 187 191 195 21 248 252 253 5-403

280 STANDARD AND OVERSIZE DIMENSIONAL DATA (INCH)

280 STANDARD DIMENSIONAL DATA (METRIC)

280 MIXER DIMENSIONAL DATA (INCH)

O-RINGS

DASH SHAFT GLAND STUFFING BOX IB SEAL SB OB BOLT CIRCLE BY SLOT LOCK

NO. SIZE OD BORE DIA DEPTH LENGTH BOLT SIZE WIDTH SHAFT ROTARY STATIONARY RING

A B C C D E F G MIN H V W X Y

MAX MIN MAX MAX MIN MAX 3/8" 1/2" 5/8"

-8 1.000 4.11 2.00 2.04 1.85 1.58 2.13 2.88 0.44 120 128 129 124 -9 1.125 4.11 2.12 2.27 1.98 1.58 2.13 3.14 0.44 122 130 131 126 -10 1.250 4.36 2.25 2.33 2.10 1.58 2.13 3.14 3.26 0.57 124 132 133 128 -11 1.375 4.49 2.37 2.44 2.23 1.58 2.13 3.33 3.46 0.57 126 134 135 130 -12 1.500 4.99 2.50 2.69 2.35 1.58 2.13 3.53 3.66 0.57 128 136 137 132 -13 1.625 5.49 2.62 2.81 2.48 1.58 2.13 3.65 3.78 0.57 130 138 139 134 -14 1.750 5.49 2.75 2.94 2.60 1.58 2.13 3.78 3.91 0.57 132 140 141 136 -15 1.875 5.49 2.87 3.19 2.73 1.58 2.13 4.03 4.16 0.57 134 142 143 138 -16 2.000 5.99 3.00 3.44 2.85 1.58 2.13 4.28 4.41 4.53 0.69 136 144 145 140 -17 2.125 5.99 3.12 3.56 2.98 1.58 2.13 4.40 4.53 4.65 0.69 138 146 147 142 -18 2.250 5.99 3.25 3.62 3.10 1.58 2.13 4.46 4.59 4.71 0.69 140 148 149 144 -19 2.375 6.49 3.37 3.81 3.23 1.58 2.13 4.65 4.78 4.90 0.69 142 150 151 146

1/2" 5/8" 3/4" -20 2.500 7.70 4.00 4.44 3.73 2.05 2.50 5.42 5.55 0.69 230 236 237 151 -21 2.625 7.83 4.12 4.56 3.86 2.05 2.50 5.50 5.62 0.69 231 237 238 151 -22 2.750 7.94 4.25 4.69 3.97 2.05 2.50 5.65 5.77 0.69 232 238 239 152 -23 2.875 7.99 4.37 4.81 4.10 2.05 2.50 5.80 5.92 0.69 233 239 240 152 -24 3.000 8.19 4.50 4.94 4.22 2.05 2.50 5.93 6.05 0.69 234 240 241 153 -25 3.125 8.30 4.62 5.06 4.35 2.05 2.50 6.02 6.14 6.27 0.81 235 241 242 153 -26 3.250 8.44 4.75 5.19 4.47 2.05 2.50 6.18 6.31 6.43 0.81 236 242 243 154 -27 3.375 8.49 4.87 5.31 4.60 2.05 2.50 6.31 6.44 6.56 0.81 237 243 244 154 -28 3.500 8.71 5.00 5.44 4.72 2.05 2.50 6.38 6.51 6.63 0.81 238 244 245 155 -29 3.625 8.84 5.12 5.56 4.85 2.05 2.50 6.52 6.64 6.77 0.81 239 245 246 155 -30 3.750 8.96 5.25 5.69 4.97 2.05 2.50 6.66 6.78 6.91 0.81 240 246 247 156 -31 3.875 8.99 5.37 5.81 5.10 2.05 2.50 6.79 6.90 7.03 0.81 241 247 248 156 -32 4.000 8.99 5.50 5.94 5.22 2.05 2.50 6.91 7.05 7.16 0.81 242 248 249 157 -33 4.125 9.33 5.62 6.06 5.35 2.05 2.50 7.03 7.15 7.28 0.81 243 249 250 157 -34 4.250 9.49 5.75 6.19 5.47 2.05 2.50 7.18 7.30 7.43 0.81 244 250 251 158 -35 4.375 9.49 5.87 6.31 5.60 2.05 2.50 7.28 7.40 7.53 0.81 245 251 252 158 -36 4.500 10.49 6.00 6.44 5.72 2.05 2.50 7.40 7.53 7.65 0.81 246 252 253 159

C MIN 7/8" 1" 1 1/8"

-38 4.75 10.98 6.75 6.38 3.25 4.09 8.92 9.04 9.17 351 359 361 253 -40 5.00 11.23 7.00 6.63 3.25 4.09 9.17 9.29 9.42 353 361 362 255 -42 5.25 11.48 7.25 6.88 3.25 4.09 9.42 9.54 9.67 355 362 363 257 -44 5.50 11.73 7.50 7.13 3.25 4.09 9.67 9.79 9.92 357 363 364 259 -46 5.75 11.98 7.75 7.38 3.25 4.09 9.92 10.04 10.17 359 364 365 260 -48 6.00 12.23 8.00 7.63 3.25 4.09 10.17 10.29 10.42 361 365 366 261 -50 6.25 12.48 8.25 7.88 3.25 4.09 10.42 10.54 10.67 362 366 367 262 -52 6.50 12.73 8.50 8.13 3.25 4.09 10.67 10.79 10.92 363 367 368 263 -54 6.75 12.98 8.75 8.38 3.25 4.09 10.92 11.04 11.17 364 368 369 264 -56 7.00 13.23 9.00 8.63 3.25 4.09 11.17 11.29 11.42 365 369 370 265 -58 7.25 13.48 9.25 8.88 3.25 4.09 11.42 11.54 11.67 366 370 371 266 -60 7.50 13.73 9.50 9.13 3.25 4.09 11.67 11.79 11.92 367 371 372 267 -62 7.75 13.98 9.75 9.38 3.25 4.09 11.92 12.04 12.17 368 372 373 268 -64 8.00 14.23 10.00 9.63 3.25 4.09 12.17 12.29 12.42 369 373 374 269

SHAFT OD STUFFING IB SEAL SB OB BOLT CIRCLE BY SLOT O-RINGS

SIZE BOX BORE DIA DEPTH LENGTH BOLT SIZE WIDTH SHAFT ROTARY STATIONARY LOCK RING

A B C C D E F G MIN H V W X Y

MAX MIN MAX MAX MIN MAX 8 mm 10 mm 12 mm

35 114 60 62 56 40 54 85 88 14 126 134 135 130 38 127 63 68 59 40 54 90 93 14 128 136 137 132 60 165 86 97 82 40 54 118 121 124 17 142 150 151 146

12 mm 16 mm 20 mm 65 199 102 116 98 52 63 140 143 17 231 237 238 151 70 202 108 119 101 52 63 144 147 17 232 238 239 152 75 208 114 125 107 52 63 151 154 17 234 240 241 153 80 211 117 129 110 52 63 153 156 159 21 235 241 242 153 85 216 124 135 117 52 63 160 164 167 21 237 243 244 154 90 225 130 141 123 52 63 166 169 172 21 239 245 246 155 95 228 133 144 126 52 63 169 172 176 21 240 246 247 156 100 228 140 151 132 52 63 176 179 182 21 242 248 249 156 110 241 149 160 142 52 63 185 188 191 21 245 251 252 158

C MIN 20 mm 24 mm 30 mm 120 279 171 162 83 104 227 230 236 351 359 361 253 130 292 184 175 83 104 239 242 248 355 362 363 257 140 298 191 181 83 104 246 249 255 357 363 364 259 150 311 203 194 83 104 258 261 267 361 365 366 260 160 323 216 207 83 104 271 274 280 363 367 368 262 170 330 222 213 83 104 277 280 286 364 368 369 263 180 342 235 226 83 104 290 293 299 366 370 371 265 190 349 241 232 83 104 296 299 305 367 371 372 266 200 361 254 245 83 104 309 312 318 369 373 -374 268

280 MIXER DIMENSIONAL DATA (METRIC)

280 MIXER JUMBO DIMENSIONAL DATA (INCH)

280 MIXER JUMBO DIMENSIONAL DATA (METRIC)

FORM NO. 072899 REV. 8 PRINTED IN USA 8/01

IS0 9001

CERTIFIED

280 is a trademark of A.W. Chesterton Company

A.W.CHESTERTON CO.

Middlesex Industrial Park, 225 Fallon Road Stoneham, Massachusetts 02180-9101 USA Telephone: 781-438-7000 Fax: 781-438-8971 www.chesterton.com

© A.W.CHESTERTON CO., 2000. All rights reserved.

® Registered trademark owned and licensed by

A.W.CHESTERTON CO. in USA and other countries.

E MIN F

AD

V W X X W Y

C

H

G MIN

B MAX

KEY

A - Shaft Size B -Maximum Gland Diameter C -Stuffing Box Inside Diameter D -Seal Diameter in Stuffing Box E - Minimum Stuffing Box Depth F - Outboard Seal Length G-Minimum Bolt Circle by Bolt Size H -Slot Width V - Shaft O-Ring W-Rotary O-Ring X - Stationary O-Ring Y- Lock Ring O-Ring

DASH SHAFT GLAND STUFFING IB SEAL SB OB BOLT CIRCLE BY O-RINGS

NO. SIZE OD BOX BORE DIA DEPTH LENGTH BOLT SIZE SHAFT ROTARY STATIONARY LOCK RING

A B C D E F G MIN V W X Y

MAX MIN MAX MIN MAX 7/8" 1" 1 1/8"

-66 8.25 18.01 11.50 11.01 4.29 5.72 14.50 14.63 14.75 446 449 450 374 -68 8.50 18.01 11.50 11.01 4.29 5.72 14.50 14.63 14.75 446 449 450 374 -70 8.75 18.51 12.00 11.51 4.29 5.72 15.00 15.13 15.25 447 450 451 376 -72 9.00 18.51 12.00 11.51 4.29 5.72 15.00 15.13 15.25 447 450 451 376 -74 9.25 19.01 12.50 12.01 4.29 5.72 15.50 15.63 15.75 448 451 452 378 -76 9.50 19.01 12.50 12.01 4.29 5.72 15.50 15.63 15.75 448 451 452 378 -78 9.75 19.51 13.00 12.51 4.29 5.72 16.00 16.13 16.25 449 452 453 379 -80 10.00 19.51 13.00 12.51 4.29 5.72 16.00 16.13 16.25 449 452 453 379 -82 10.25 20.01 13.50 13.01 4.29 5.72 16.50 16.63 16.75 450 453 454 380 -84 10.50 20.01 13.50 13.01 4.29 5.72 16.50 16.63 16.75 450 453 454 380 -86 10.75 20.51 14.00 13.51 4.29 5.72 17.00 17.13 17.25 451 454 455 381 -88 11.00 20.51 14.00 13.51 4.29 5.72 17.00 17.13 17.25 451 454 455 381 -90 11.25 21.01 14.50 14.01 4.29 5.72 17.50 17.63 17.75 452 455 456 5-902 -92 11.50 21.01 14.50 14.01 4.29 5.72 17.50 17.63 17.75 452 455 456 5-902 -94 11.75 21.51 15.00 14.51 4.29 5.72 18.00 18.13 18.25 453 456 457 382 -96 12.00 21.51 15.00 14.51 4.29 5.72 18.00 18.13 18.25 453 456 457 382

SHAFT OD STUFFING IB SEAL SB OB BOLT CIRCLE BY O-RINGS

SIZE BOX BORE DIA DEPTH LENGTH BOLT SIZE SHAFT ROTARY STATIONARY LOCK RING

A B C D E F G MIN V W X Y

MAX MIN MAX MIN MAX 20 mm 24 mm 30 mm

210 457 292 280 109 145 368 372 378 446 449 450 374 220 470 305 292 109 145 381 385 391 447 450 451 376 230 470 305 292 109 145 381 385 391 447 450 451 376 240 483 318 305 109 145 394 398 404 448 451 452 378 250 496 330 318 109 145 406 410 417 449 452 453 379 260 508 343 330 109 145 419 423 429 450 453 454 380 270 521 356 343 109 145 432 436 442 451 454 455 381 280 521 356 343 109 145 432 436 442 451 454 455 381 290 534 368 356 109 145 445 449 455 452 455 456 5-902 300 546 381 369 109 145 457 461 467 453 456 457 382