Fisher POSI-SEAL A31A High Performance Butterfly Valve …

1 Instruction Manual A31A Valve D500240X012 February 2018. Fisher POSI-SEAL A31A high Performance Butterfly Valve NPS 3 through 12. Contents Figure 1. Typical Fisher A31A Valve Introduction .. 1. Scope of Manual .. 1. Specifications .. 2. Description .. 2. Educational Services .. 3. Installation .. 3. Adjusting the Actuator Travel Stops or Travel .. 3. Valve Orientation .. 5. W5811 1. Preparing for Installation .. 6. Installing Wafer Style Valves .. 9. Installing Single Flange Valves .. 11. Maintenance .. 11.

2 Replacing Packing .. 12. Removing the Valve from the Pipeline .. 13. Removing/Installing the Seal Ring .. 14. PTFE Seal Installation .. 14. NOVEX Seal and Phoenix III Fire Tested Seal Installation .. 15. Cryogenic Seal Installation .. 16. Anti Blowout Protection, Packing, Valve Shaft(s), W5812 1. Disk, and Bearing Maintenance .. 18. Removal .. 18. Installing a One Piece Shaft .. 20. Installing a Two Piece Shaft .. 21 Parts Ordering .. 23. Installing the Gasket Retainer .. 23 Parts List .. 23. Introduction Scope of Manual This instruction manual provides installation, maintenance, and parts ordering information for the Fisher POSI SEAL.

3 A31A high Performance Butterfly valves. Figure 1 shows typical A31A valves. For information regarding actuators and accessories, refer to separate instruction manuals. Do not install, operate, or maintain A31A valves without being fully trained and qualified in Valve , actuator, and accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is important to carefully read, understand, and follow all the contents of this manual, including all safety cautions and warnings.

4 If you have any questions about these instructions, contact your Emerson sales office or Local Business Partner before proceeding. A31A Valve Instruction Manual February 2018 D500240X012. Table 1. Specifications Available Valve Configurations Valve Classification J Flangeless, wafer style or J single flange (lugged) Face to face dimensions are in compliance with MSS. control Valve with a one piece Valve body and a SP68 and API 609 standards; Valve bodies are two component seal/backup O ring, and a keyed designed for installation between ASME CL150.

5 Drive shaft or 300 raised face flanges Shutoff Classification. Per ANSI/FCI 70 2. Valve Sizes Standard Soft Seal: Bidirectional bubble tight shutoff NPS J 3, J 4, J 6, J 8, J 10, J 12. NOVEX Seal: Unidirectional shutoff Class V (reverse flow direction only). End Connection Style Phoenix III Seal: Bidirectional bubble tight shutoff J Flangeless, wafer style or J single flange Valve Phoenix III Seal for Fire Tested Applications: Consult body designed to fit between raised face mating your Emerson sales office or Local Business Partner for flanges per ASME CL150 or CL300 fire tested Performance Cryogenic seal applications.

6 Consult your Emerson Maximum Inlet Pressure/Temperature(4) sales office or Local Business Partner Consistent with ASME J CL150 and J CL300. pressure/temperature ratings per ASME Also, Installed Valve Orientation see figure 2 for additional information. See figure 3 for orientation guidelines for optimum seal Performance Available Seal Configurations Valve In Line Position J Standard soft seal ring (PTFE) with fluorocarbon or Shaft horizontal. See figure 5. EPR backup ring, J NOVEX seal ring, CL150, (S31600, 316 SST)(1) J NOVEX seal ring, CL300, Available Actuators standard pressure rating (S31600, 316 SST)(1).

7 J NOVEX seal ring, CL300, high pressure rating J Handlever, J handwheel, (S21800), J Phoenix III fire tested seal ring (S31600, J spring and diaphragm, or J pneumatic piston 316 SST) with resilient insert (PTFE) and backup ring (fluorocarbon), or J cryogenic seal ring (CTFE) with Disk Rotation optional backup ring (aluminum) Clockwise to close 1. For specific information about materials of construction, contact your nearest Emerson sales office or Local Business Partner. 2. The pressure/temperature limits in this manual, and any applicable code or standard limitation, should not be exceeded.

8 Description The A31A high Performance Butterfly Valve features a keyed drive shaft. The keyed shaft combines with a variety of handlevers, handwheels, pneumatic piston or spring and diaphragm actuators to make the A31A a reliable, high Performance , Butterfly Valve for a variety of applications in the various process industries. The A31A is available in either a flangeless (wafer) or a single flange (lugged) Valve design, with a variety of seal, Valve body, and internal components. The A31A Valve features a dynamic sealing design that is used in a variety of demanding applications.

9 With the appropriate seal configuration and materials of construction, the pressure assisted seal provides shutoff against the full ASME class pressure range for the specific Valve type. 2. Instruction Manual A31A Valve D500240X012 February 2018. Educational Services For information on available courses for the Fisher POSI-SEAL A31 NPS 3 through 12 Butterfly Valve , as well as a variety of other products, contact: Emerson Automation Solutions Educational Services - Registration Phone: 1-641-754-3771 or 1-800-338-8158.

10 E-mail: Installation WARNING. Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal injury. To avoid personal injury or property damage resulting from the sudden release of pressure, do not install the Valve assembly where service conditions could exceed the limits given in this manual or on appropriate nameplates. Use pressure relieving devices as required by government or accepted industry codes and good engineering practices. Check with your process or safety engineer for any additional measures that must be taken to protect against process media.