Emerson Anderson Greenwood 9300 Series User Manual

30
ANDERSON GREENWOOD SERIES 9300 PILOT OPERATED SAFETY RELIEF VALVES
InstallatIon and MaIntenance InstructIons
6 TROUBLE SHOOTING
Problem Possible cause Resolution
1. Valve opens below set 1. Improper installation of sense line 1. Verify if sense line is installed properly
2. Plugged sense line 2. Check sense line, inlet screen, and dipper tube for cleanliness
3. Improper gauge accuracy and/or location 3. Verify gauge accuracy for valve being tested and ensure
location is at valve being tested
2. Pilot leaks from upper vent 1. Sense diaphragm failure 1. Replace diaphragm
2. Spindle lock nut loose 2. Tighten spindle lock nut
3. Pilot leaks from lower vent 1. Pilot seat leakage 1. On the 93 pilot, replace spindle disc assembly.
On the 93T and 91 pilots, replace seat.
Inspect nozzle and relap if necessary
2. Nozzle over tightened 2. Tighten nozzle per assembly instructions
4. Main valve leaks 1. Seat film damaged 1. Replace seat film
2. Nozzle damaged 2. Inspect nozzle and relap if necessary
3. Nozzle seal damaged, missing, or out of place 3. Position nozzle seal per assembly instructions
4. Seat plate assembly is loose 4. Tighten seat plate assembly
5. Operating too close to set pressure (above 96%) 5. Lower operating pressure
6. Main valve diaphragm failure 6. Replace diaphragm
7. Diaphragm assembly loose 7. Tighten diaphragm assembly
8. Seat plate not fully threaded on hub 8. Install seat per assembly instructions
7 MAIN VALVE SPARE PARTS AND REPAIR KITS
Soft goods repair kits contain all thediaphragms,
seals, and seats to a repair valve. To orderakit,
specify the base number and select thelast
three digits from the following tables.
Toensure the purchase of the correct
repair kit, the order should specify the valve
model and serial number. For chloride rich
environments, the bolts in the main valve and
pilot exposed to the environment should be
replaced during routine maintenance or at least
every 5 years.
7.2 - SERIES 9300 MAIN VALVE DUAL CHAMBER DIAPHRAGM REPAIR KIT (06.0235.XXX))
Kit type Internals Materials 2” 3” 4” 6” 8” 10” 12”
Soft goods Aluminum PTFE/Kalrez
®
382 384 386 388 390 392 394
Soft goods SST PTFE/Kalrez
®
545 547 549 551 553 555 557
Bolt Aluminum SST 395 396 397 398 399 400 401
Bolt SST SST 402 403 404 405 406 407 408
7.1 - SERIES 9300 MAIN VALVE SINGLE CHAMBER DIAPHRAGM REPAIR KIT (06.0235.XXX)
Kit type Internals Materials 2” 3” 4” 6” 8” 10” 12”
Soft goods Aluminum PTFE 319 321 323 526 327 329 331
Soft goods SST-LP PTFE 496 498 500 527 504 506 508
Soft goods SST-HP PTFE 356 360 364 528 372 376 380
Bolt Aluminum SST 332 333 334 335 336 337 338
Bolt SST-LP SST 339 340 341 342 343 344 345
Bolt SST-HP <15 psig SST 346 347 348 570 350 351 352
Bolt SST-HP ≥15 psig SST 346 347 348 349 350 351 352
Bolt SST Marine SST 624 625 626 627 628 629 630
Bolt SST Marine certs SST - - - 631 632 633 634

Emerson Anderson Greenwood 9300 Series Specifications

General

Brand	Emerson
Model	Anderson Greenwood 9300 Series
Category	Control Unit
Language	English