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ANDERSON GREENWOOD

4020HP PRESSURE AND VACUUM RELIEF VALVE

INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS

TABLE 8 - REPLACEMENT PARTS

Description

Reference

Usage

Material

Nominal Size

2 (50)

3 (75)

4 (100)

6 (150)

8 (200)

10 (250)

12 (300)

Pallet Disk

Figures 3 and 4

Very Low Pressure

Stainless

steel

11183378

11183398

11183420

11183439

11183457

11183475

11183493

Low Pressure

11182941

11182943

11182945

11182946

11183009

11183092

11183133

Figure 5

High Pressure

Figure 2

Spring Loaded

Diaphragm

Figures 3 and 4

Very Low Pressure

PFA

11183880

11183882

11183884

11183266

- - - - -

PTFE

11183257

11183260

11183263

11183267

11183271

11183275

11183279

Low Pressure

PFA

11183881

11183883

11183885

11411605

- - - - -

PTFE

11183258

11183261

11183264

11411606

11411607

11411612

11411614

Figure 5

High Pressure

PTFE

11183259

11183262

11183265

11183269

11183273

11183277

11183281

Figure 2

Spring Loaded

<200mbar

PTFE

11281485

11280622

11281490

11281493

11281496

11281498

11281500

Spring Loaded

>200mbar

PTFE

11281489

11280624

11281492

11281495

11281497

11280837

11281502

Backing
Disk

Figures 4 and 5

Very Low Pressure

General

Service

Gasket

- - - - -

11183856

11183886

11183887

11183888

Low Pressure

- - - - -

11411623

11411631

11411634

11411636

High Pressure

11183282

11183284

11183285

11183286

11183287

11183288

11183289

Spacer Disk

Figures 4 and 5

Very Low Pressure

General

Service

Gasket

- - - - -

11183857

11183889

11183890

11183891

Low Pressure

- - - - -

High Pressure

11183290

11183292

11183293

11183294

11183295

11183296

11183297

Gasket

Figure 1

Guide Tube

General

Service

Gasket

- - - - -

11183311

Figure 2

Pivot Point

11272778

11405355

11272733

O-ring

Figure 1

Seat

Viton

11183351

11183354

11183320

11180110

11183326

11182024

11180089

Nitrile

11183350

11183353

11183319

11180109

11183325

11182023

11180088

PTFE

11183349

11183352

11183318

11180108

11183324

11182022

11180087

Cover

Viton

11183314

11183317

11183323

11183326

11183334

11183337

11183340

Nitrile

11183313

11183316

11183322

11183325

11183333

11183336

11183339

PTFE

11183312

11183315

11183321

11183324

11183332

11183335

11183338

Skid Ring

Figure 1

- - - - -

PTFE

- - - - -

11405352

11272734

11275612

Содержание ANDERSON GREENWOOD 4020HP

Страница 1: ...sembly 5 8 Valve Refurbishment 9 9 Valve Reassembly 9 10 Testing Set Pressure and Vacuum 10 Tables and Figures Table 1 Inlet Flange Thread Forms 5 Table 2 Vacuum Pallet Ranges inch 8 Table 3 Vacuum Pallet Ranges mm 8 Table 4 Seat Lap Band Width 9 Table 5 Pallet Thickness 10 Table 6 Pallet Lengths 10 Table 7 Equivalent Weights for Vacuum Setting 11 Table 8 Replacement Parts 13 Figure 1 Valve Genera...

Страница 2: ...vacuum will cause the vacuum pallet to begin to lift thus breaking the vacuum by allowing atmospheric air to be drawn into the tank in breathing In order for the valve to open and achieve its design lift an overpressure will be required The 4020HP PVRV has been designed to achieve this design lift and rated capacity within 10 overpressure Set pressures are adjusted by altering the compression on t...

Страница 3: ...rease set pressure and anticlockwise will decrease set pressure After adjustment secure adjusting screw P16 using locknut P18 and refit cap P19 3 Repeat set pressure verification as per 4 1 and repeat set pressure adjustment if required 4 3 Vacuum Setting Verification For verification of the vacuum setting the flow rate out of the accumulator should be limited such that when the vacuum setting is ...

Страница 4: ...Pressure Compression Spring P15 Upper Spring Plate P16 Pressure Adjusting Screw P17 Skid Ring 6 150 mm and larger P18 Locknut P19 Pressure Cap V1 Vacuum Seat Body V2 Cover V3 Vacuum Seat V4 Vacuum Post V5 Shroud V6 Cap Screw V7 Seat O ring V8 Cover O ring V9 Cover Washer V10 Cover Hex Set Screw V11 Vacuum Pallet Assembly V12 Vacuum Mesh V13 Mesh Plate V14 Mesh Plate Hex Set Screw V15 Guide Tube Ga...

Страница 5: ... must be isolated from tank pressure before servicing or removing All gas vapour must be blocked and pressure safely vented Wear appropriate protective clothing and breathing apparatus if hazardous gas vapours are present NOTE Storage tank inlet piping configurations should conform to recognized standards Different configurations will develop different inlet pressure losses when the valve is flowi...

Страница 6: ...ide tube V16 and guide tube gasket V15 3 Remove seat V3 complete with vacuum posts V4 by removing cap screws V6 4 Remove O ring V7 Identify pallet assembly weights and seat as vacuum side parts If required unscrew hex set screws V14 remove mesh plate V13 and recover vacuum mesh V12 7 3 Pressure Pallet See Figure 2 1 Remove nut 8 and washer where used 7 to release pivot point 9 from assembly 2 Sepa...

Страница 7: ...ction whereas the HP has a significant disc for strength Refer to Table 2 for vacuum pallet ranges VLP VP Vacuum Pallet 2 50 mm 3 75 mm and 4 100 mm Remove nut 5 washer where used 4 to release stem 6 from assembly Separate pallet disk 3 diaphragm 2 pallet 1 and any weights taking care to identify weights removed to help reassembly VLP VP VACUUM PALLET 6 150 mm 8 200 mm 10 250 mm and 12 300 mm Remo...

Страница 8: ...VLP Pallet LP Pallet HP Pallet From To inc Above To inc Above To 50 Aluminium 30 61 61 178 178 2540 316 SST 64 147 147 356 356 2540 75 Aluminium 28 43 43 178 178 2540 316 SST 64 99 99 356 356 2540 100 Aluminium 28 41 41 178 178 2540 316 SST 64 89 89 356 356 2540 150 Aluminium 28 51 51 178 178 2540 316 SST 64 112 112 356 356 2540 200 Aluminium 28 58 58 305 305 2540 316 SST 64 122 122 508 508 2540 2...

Страница 9: ...during disassembly however they can also be identified by thickness and length See Tables 4 and 5 Also discard and replace the pallet disk 9 1 Vacuum Pallet VLP LP Vacuum Pallet 2 50 mm 3 75 mm and 4 100 mm See Figure 3 Assemble pallet 1 diaphragm 2 and pallet disk 3 to stem 6 and secure using washer if fitted 4 and nut 5 VLP LP Vacuum Pallet 6 150 mm 8 200 mm 10 250 mm and 12 300 mm See Figure 4 ...

Страница 10: ...ring assembly 2 Reinstall pressure pallet as identified during valve disassembly ensuring the pallet slides easily between the guide posts Place ball P11 in socket of pivot point 8 Refit bird screen P5 and weather hood P1 3 Assemble stem P13 complete with lower spring plate P12 to locate on ball P11 Assemble spring P14 and upper spring plate P15 For valves 6 150 mm and larger fit skid ring P17 in ...

Страница 11: ...19 1 3 8 6 27 5 2 12 5 6 14 0 14 7 0 2 0 4 0 9 3 9 2 1 4 8 0 9 3 6 14 3 0 6 4 22 4 2 10 31 14 1 14 6 4 16 1 0 8 0 5 2 5 0 0 9 4 1 4 1 8 9 3 4 4 1 16 3 5 7 3 25 7 1 11 36 6 9 16 7 2 18 1 2 9 0 5 2 9 7 0 9 4 9 6 1 8 10 5 8 4 5 18 3 9 8 2 28 10 0 13 40 15 8 18 8 0 20 1 5 0 0 5 2 14 3 0 9 5 1 8 2 3 11 8 2 5 0 20 4 3 9 1 31 12 9 14 45 8 7 20 8 8 22 1 7 1 0 5 3 2 9 1 4 5 9 9 2 3 12 10 6 5 4 22 4 8 10 34...

Страница 12: ...08 2 1 49 154 13 5 70 4 8 70 4 9 6 1 8 10 2 1 4 5 17 14 1 7 7 40 4 7 18 70 15 1 32 111 5 0 50 159 6 4 72 5 6 72 4 11 7 1 8 10 6 7 4 5 18 6 3 8 2 41 7 1 19 72 15 5 33 114 7 9 52 163 15 2 74 6 4 74 4 13 8 1 8 10 11 3 4 5 18 14 5 8 2 42 9 6 19 74 16 0 34 117 10 8 53 168 8 1 76 7 2 76 4 15 9 1 8 10 16 0 4 5 19 6 7 8 6 43 12 0 20 77 0 4 35 120 13 7 54 173 1 0 78 8 0 78 5 2 1 2 3 11 4 6 5 0 19 14 8 8 6 ...

Страница 13: ... PTFE 11281489 11280624 11281492 11281495 11281497 11280837 11281502 Backing Disk Figures 4 and 5 Very Low Pressure General Service Gasket 11183856 11183886 11183887 11183888 Low Pressure 11411623 11411631 11411634 11411636 High Pressure 11183282 11183284 11183285 11183286 11183287 11183288 11183289 Spacer Disk Figures 4 and 5 Very Low Pressure General Service Gasket 11183857 11183889 11183890 111...

Страница 14: ... been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability All sales are governed by our terms and conditions which are available upon request We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerso...

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