Emerson A31A Bedienerhandbuch Seite 1

www.Fisher.comD500242X012POSI-SEALr Type A31A Cryogenic HighPerformance Butterfly ValveContentsIntroduction 1...Scope of M

Cryogenic-Rotary ValveInstruction ManualForm 5482February 2005102. Install the seal ring and backup ring assembly inthe valve body. The wider outside

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200511Figure 5. Typical Seal Installation16B5081 / DOCLARGEST OUTSIDEDIAMETER (KEY 7)Table 5

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200512Figure 6. Anti-Blowout Protection DetailPACKING FLANGEANTI-BLOWOUTFLANGESHAFT SHOULDER

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200513shaft with the double D or keyed end iscalled the drive shaft.The 3- through 8-inch Cl

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200514the disc and shaft. Driving a taper key in the wrongdirection will tighten it.NoteCert

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200515this journal bearing will be flush with the valve bodybore.5. Insert the outboard jou

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200516the journal bearing(s). Hold the drive shaft thrustbearing (key 28) in the valve body

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200517Parts OrderingWhen corresponding with your Fisher sales officeabout the Type A31A Cryo

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200518Key Description Part Number13* Packing Set, PTFE3-inch 1R5795X00124-inch 12A8995X0226-

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200519Figure 7. Type A31A Cryogenic 3 through 12-inch Typical Assembly16B5086 / DOC

Cryogenic-Rotary ValveInstruction ManualForm 5482February 20052Table 1. SpecificationsAvailable Valve ConfigurationsJ Flangeless, wafer-style or J sin

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200520Figure 7. Type A31A Cryogenic 3 through 12-inch Typical Assembly (continued)16B5085 /

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200521Figure 8. 14- through 24-Inch Type A31A Cryogenic Valves (Wafer Style Shown)(Shown wit

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200522

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200523

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200524Fisher Marshalltown, Iowa 50158 USACernay 68700 France Sao Paulo 05424 BrazilSingapor

Cryogenic-Rotary ValveInstruction ManualForm 5482February 20053at the beginning of the Maintenancesection in this instruction manual.CAUTIONResponsibi

Cryogenic-Rotary ValveInstruction ManualForm 5482February 20054Figure 2. Maximum Pressure/Temperature RatingsCLASS 150, KEL‐F SEAL CLASS 300, KEL‐F SE

Cryogenic-Rotary ValveInstruction ManualForm 5482February 20055Table 2. Valve Body Data, Class 150VALVESIZE,INCHESSHAFTDIAMETERAT YOKEBEARINGFACE-TO-F

Cryogenic-Rotary ValveInstruction ManualForm 5482February 20056Table 4. Hex Head Screw, Stud Bolt and Cap Screw Data(1)VALVESIZE,INCHNUMBERSIZE DIA. I

Cryogenic-Rotary ValveInstruction ManualForm 5482February 20057MaintenanceValve parts are subject to normal wear and must beinspected and replaced as

Cryogenic-Rotary ValveInstruction ManualForm 5482February 20058CAUTIONNever use a wrench or pliers on thevalve shaft. A damaged shaft could cutthe pac

Cryogenic-Rotary ValveInstruction ManualForm 5482February 200593. Remove the retaining ring by placing a sockethead retaining ring screw from the ret