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Instruction Manual
Form 1909
August 2006
657 Size 80 and 100 Actuators
Type 657 Diaphragm Actuators
Size 80 and 100
Contents
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . 2
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Act
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators Table 1. Specifications ACTUATOR SIZE SPECIFICATIONS 80 100 2 cm 1761 2902 Nominal Effective Diaphragm Area 2 inch 273 450 mm 127 127 178 Yoke Boss Diameters (1) inch 5 5H 7 mm 25.4 or 31.8 31.8 50.8 Acceptable Valve Stem Diameters inch 1 or 1-1/4 1-1/4 2 N 62,942 200,170 Maximum Allowable Output Thrust (2) lb 14,150 45,000 mm 76 102 Maximum Travel inch 3 4 Cast Iron Steel Maximum Casing Pressure for Actuator bar 3.4 4.9 6.9
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators actuator stem is fully extended. Reduce actuator Installation loading pressure to retract the stem approximately 3.2 mm (1/8-inch). WARNING 5. For push-down-to-open valves, move valve plug to closed position. On large body sizes, this may require the use of a pry bar inserted through the To avoid personal injury or parts body line opening. If the body is installed in a damage, do not exceed the Maximum pipeline, the bottom f
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators is properly connected to the actuator. Refer to the Spring positioner instruction manual as necessary. Make spring adjustments when the loading pressure 4. Cycle the actuator several times to check that the range applied to achieve specified travel is not equal valve stem travel is correct and that the travel occurs to the pressure range stamped on the actuator when the correct pressure range is applied to the nameplate. Ref
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators b. If it is desired to increase spring compression, make the spacers approximately 4.8 mm (3/16-inch) shorter than either dimension B plus the amount of adjustment required or dimension B plus valve travel, whichever is less. 3. Whenever the total amount of adjustment required is greater than valve travel, the adjustment must be made in two or more steps, and the amount of adjustment taken in each step must be less than val
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators sure the actuator cannot suddenly Size 80 Disassembly open or close the valve. 1. Bypass the control valve. Reduce the loading pressure to atmospheric, and remove the tubing or Use bypass valves or completely piping from the top of the diaphragm casing (key 1). shut off the process to isolate the valve from process pressure. Relieve process pressure from both sides of WARNING the valve. Drain the process media from both si
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators 9. Unscrew cap screws and nuts (keys 62 and 63), the upper sleeve, spring case adaptor, and spring and remove spring case (key 29). Cap screws case (keys 34, 72, and 29). Secure with cap screws (key 62) on units with side-mounted handwheel do (key 85). not use hex nuts (key 63). 10. For actuators without side-mounted handwheel, 5. Place the diaphragm (key 2) with pattern side remove adjusting flange (key 36) and attached t
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators Table 2. Maximum Torque Values INITIAL TORQUE FINAL TORQUE DIAPHRAGM MATERIAL Nm (lbfft) Nm (lbfft) EPDM/Meta-Aramid 41 (30) 82, +/−13 (60, +/−10) Nitrile, Silicone, FKM/Meta-Aramid 34 (25) 68 (50) 7. Insert the cap screws (key 22) into the diaphragm WARNING casing, and tighten the hex nuts (key 23) in the following manner. The first four hex nuts tightened should be diametrically opposed and 90 degrees To avoid personal
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators (used with group 1 springs only), and spring seat 5. Install washer, diaphragm plate, diaphragm, (keys 115, 114, 35, and 11). diaphragm retainer, and backup plate (keys 117, 4, 2, 110 and 13). 11. Remove seal bushing (key 111) and diaphragm 6. Apply lithium grease lubricant (key 241) to the casing cover O-rings (keys 112 and 113) from upper thread on the diaphragm end of the actuator stem diaphragm casing (key 123). Repla
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators 12. After the last hex nut is tightened to 68 Nm (50 of worm gear (key 44). Lift out lower sleeve, bearing lbfft), all of the hex nuts should be tightened again and gear retainer, thrust bearings, and worm gear to 68 Nm (50 lbfft) in a circular pattern around the (keys 46, 66, 67, and 44). bolt circle. 5. The worm shaft (key 45) and associated parts can be removed in order to replace or lubricate 13. Once completed, no
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators flange so that the key engages the slot in the lower handwheel clockwise turns the handwheel stem sleeve. Secure adjusting flange with cap screws (key 133, figure 6) into the diaphragm casing and (key 64). forces the pressure block assembly (key 179, figure 6) against the diaphragm and diaphragm 9. Adjust set screws (key 40) to eliminate free play plate. Instructions are given below for complete in the bearings. disassembl
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators block (keys 133, 183, 175, and 179) into the body as 4. Loosen the set screws (key 41) in the front and shown in figure 6 and install support screws back worm retainers (keys 48 and 49) and (key 182). handwheel (key 51). 5. Remove retaining ring (key 118), and remove 3. Install handwheel and hex nut (keys 51 and 54). handwheel. 4. Install a new handwheel gasket (key 185). 6. Remove front and back worm retainers (keys 48
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators Key Description Part Number Parts Ordering 4 Diaphragm Plate Each actuator has a serial number stamped on the 5 Lower Diaphragm Casing nameplate. Always refer to this number when 5 Lower Diaphragm Casing, Yoke, & corresponding with your Emerson Process Tie Rod Ass’y Management sales office regarding replacement 6 Spring See tables 8 Cap Screw parts or technical information. Also, always refer to 9 Yoke the 11-character part n
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators APPLY LUB 40A8771-B / DOC Figure 4. Size 80 Type 657 Actuator 14
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators APPLY LUB 50A2621-F / DOC Figure 5. Size 100 Type 657 Actuator 15
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators Key 6 Size 80 Actuator Spring, steel COMPRESSION MAXIMUM PART COLOR RATE LOAD SIZE NUMBER CODE Lb/in N/mm Lb N 335 58.7 2480 11,031 1J518227082 White 1000 175.1 5630 25,042 1H747727082 Red 1650 288.9 7900 35,139 1H747527082 Lt. Blue 80 2100 367.7 10,600 47,148 1H747327082 Yellow 2600 455.3 10,600 47,148 1H747627082 Lt. Green 3100 542.8 13,800 61,382 1H747027082 White Key 6 Size 100 Actuator Spring COMPRESSION MAX LOAD PART CO
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators Key Description Part Number Key Description Part Number Size 100 Top-Mtd Handwheel Size 80 Side-Mtd Handwheel 7 Travel Stop (Adjustable Up Travel Stop) 17 Machine Screw 17 Machine Screw 28 Machine Screw 40 Set Screw 40 Set Screw 41 Set Screw 41 Set Screw 44 Worm Gear 44 Worm Gear 45 Worm Shaft 45 Worm Shaft 48 Front Worm Retainer 46 Lower Sleeve 49 Back Worm Retainer 47 Key 50 Ball Bearing 48 Front Worm Retainer 51 Handwheel
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators SECTION B-B B B VIEW A VIEW A C C SECTION C-C APPLY LUB 50A8774-C / DOC Figure 7. Size 80 Type 657 Actuator with Side-Mounted Handwheel and Hydraulic Snubber 18
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators SECTION A-A A A APPLY LUB 50A2622-F / DOC Figure 8. Top-Mounted Handwheel for Size 100 Actuator 19
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Instruction Manual Form 1909 August 2006 657 Size 80 and 100 Actuators Fisher is a mark owned by Fisher Controls International LLC, a member of the Emerson Process Management business division of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners. The contents of this publication are presented for informational purposes only, and while every effort ha
