Instruction/ maintenance manual of the product 655 Fisher
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www.Fisher.com D100305X012 Type 6 55 a nd 6 55R A ctuators for S elf-Operated C ontrol Contents Introduction 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope of Manual 1 . . . . . . . . . . . . . . . . . . . . . . . . . Description 1 .
655 and 655R Actuators Instruction Manual Form 1292 July 2007 2 Table 1. Specifications Actuator Sizes and Maximum Casing Pressures ACTUATOR MAXIMUM CASING PRESSURE ACTUATOR SIZE Bar Psig 3A, 4A 17.2 250 3B, 4B 12.1 175 32, 42 6.9 100 33, 43 4.5 65 34, 44 3.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 3 CAUTION To avoid premature wear of the diaphragm due to debris in the pressure line to the diaphragm, install a strainer in the pipeline ahead of the regulator or relief valve. Before installing the actuator, inspect it for any damage.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 4 T able 2. Actuator Pressure-Setting Ranges (1) ACTUA- TOR SPRING PART PRESSURE REDUCTION PRESSURE RELIEF ACTUA- TOR SPRING PART PRESSURE.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 5 T able 3. Effective Diaphragm Area (1) ACTUA- TRAVEL DOWN FROM UPPER CASING STOP, mm (IN.) ACTUA - TOR 0 3 (0.125) 5 (0.1875) 6 (0.25) 10 (0.375) 11 (0.4375) 13 (0.5) 14 (0.5625) 19 (0.75) 22 (0.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 6 f. Stroke the actuator, and measure the stem movement to check travel. If the movement is more than full travel, turn the valve stem out of the actuator stem the amount of over-travel.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 7 4. Slowly open the upstream shutoff valve. Startup For Pressure-Relief Service 1. Open the needle valve in the control line. 2. Open the downstream shutoff valve. 3. Slowly open the upstream shutoff valve.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 8 pressurized, even when the valve has been removed from the pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings, or when loosening the packing box pipe plug.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 9 diaphragm casing (key 5). Some Type 655R actuators will have travel stops (key 13, not shown) in place of three of these six cap screws. 9. If a top-mounted handwheel assembly is used, refer to steps 4 through 8 of the Disassembly portion of the Top-Mounted Handwheel section.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 10 16. To start up and adjust the actuator, follow the procedures outlined in the Startup section of this instruction manual.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 11 tightened to the proper load to prevent leakage, but not crush the material. Perform the following tightening sequence with a manual torque wrench. CAUTION Over-tightening the diaphragm cap screws (key 19) can damage the diaphragm.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 12 Parts Ordering When corresponding with your Emerson Process Management sales office about this equipment, refer to the serial number found on the actuator nameplate (key 17, figure 4).
655 and 655R Actuators Instruction Manual Form 1292 July 2007 13 Figure 4. Type 655 Actuator 30A8341-A/DOC 30A8342-A/DOC SIZE 3A AND 4A ACTUA TOR DIAPHRAGM CASINGS A APPL Y MOL Y-GREASE LUBRICANT TO A.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 14 Figure 6. Size 3B and 4B Top-Mounted Handwheel Assembly 38A1217-B/DOC APPL Y LUB P ARTS NOT SHOWN : 30 & 31 Key 6 Spring, steel COLOR CODE SPRING RATE SAFE LOAD COLOR CODE N/mm Lb/in.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 15.
655 and 655R Actuators Instruction Manual Form 1292 July 2007 16 Emerson Process Management Marshalltown, Iowa 50158 USA Cernay 68700 France Sao Paulo 05424 Brazil Singapore 128461 www.
An important point after buying a device Fisher 655 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Fisher 655 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Fisher 655 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Fisher 655 you will learn all the available features of the product, as well as information on its operation. The information that you get Fisher 655 will certainly help you make a decision on the purchase.
If you already are a holder of Fisher 655, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Fisher 655.
However, one of the most important roles played by the user manual is to help in solving problems with Fisher 655. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Fisher 655 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
