Manuale d’uso / di manutenzione del prodotto 657 del fabbricante Fisher
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www.Fisher.com D100307X012 Type 6 57 D iaphragm A ctuators S i z e 80 and 10 0 Contents Introduction 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Scope of Manual 2 . . . . . . . . . . . . . . . . . . . . . . . . . Description 2 . . .
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 2 T able 1. Specifications SPECIFICA TIONS ACTUA TOR SIZE 80 100 Nominal Effective Diaphragm Area cm 2 1761 2902 inch 2 273 450 Y oke Boss Diameters mm 127 127 178 inch 5 5H (1) 7 Acceptable V alve Stem Diameters mm 25.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 3 Installation W ARNING To avoid personal injury or parts damage, do not exceed the Maximum Diaphragm Casing Pressure listed in table 1.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 4 is properly connected to the actuator. Refer to the positioner instruction manual as necessary. 4. Cycle the actuator several times to check that the valve stem travel is correct and that the travel occurs when the correct pressure range is applied to the diaphragm.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 5 Figure 3. Dimension B for Spring Adjustment LOWER DIAPHRAGM CASING SPRING SEA T JAM NUT ADJUSTING NUT A0950-1 / IL B For high spring forces, it is necessary to use spacers between the lower diaphragm casing and the spring seat to isolate spring force from the adjusting nut.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 6 sure the actuator cannot suddenly open or close the valve. D Use bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure from both sides of the valve.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 7 9. Unscrew cap screws and nuts (keys 62 and 63), and remove spring case (key 29).
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 8 Table 2. Maximum Torque Values DIAPHRAGM MATERIAL INITIAL TORQUE N S m (lbf S ft) FINAL TORQUE N S m (lbf S ft) EPDM/Meta-Aramid 41 (30) 82, +/−13 (60, +/−10) Nitrile, Silicone, FKM/Meta-Aramid 34 (25) 68 (50) 7.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 9 (used with group 1 springs only), and spring seat (keys 115, 114, 35, and 11). 11. Remove seal bushing (key 111) and diaphragm casing cover O-rings (keys 112 and 113) from upper diaphragm casing (key 123).
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 10 12. After the last hex nut is tightened to 68 N S m (50 lbf S ft), all of the hex nuts should be tightened again to 68 N S m (50 lbf S ft) in a circular pattern around the bolt circle.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 11 flange so that the key engages the slot in the lower sleeve. Secure adjusting flange with cap screws (key 64). 9. Adjust set screws (key 40) to eliminate free play in the bearings.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 12 block (keys 133, 183, 175, and 179) into the body as shown in figure 6 and install support screws (key 182). 3. Install handwheel and hex nut (keys 51 and 54). 4. Install a new handwheel gasket (key 185).
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 13 Parts Ordering Each actuator has a serial number stamped on the nameplate. Always refer to this number when corresponding with your Emerson Process Management sales office regarding replacement parts or technical information.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 14 Figure 4. Size 80 Type 657 Actuator APPL Y LUB 40A8771-B / DOC.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 15 Figure 5. Size 100 Type 657 Actuator 50A2621-F / DOC APPL Y LUB.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 16 Key 6 Size 80 Actuator Spring, steel SIZE COMPRESSION RA TE MAXIMUM LOAD P ART NUMBER COLOR CODE Lb/in N/mm Lb N 80 335 1000 1650 2100 2600 3100 58.7 175.1 288.9 367.7 455.3 542.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 17 Key Description Part Number Size 80 Side-Mtd Handwheel 7 Travel Stop 17 Machine Screw 28 Machine Screw 40 Set Screw 41 Set Scr.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 18 Figure 7. Size 80 Type 657 Actuator with Side-Mounted Handwheel and Hydraulic Snubber APPL Y LUB 50A8774-C / DOC B B VIEW A C .
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 19 Figure 8. Top-Mounted Handwheel for Size 100 Actuator APPL Y LUB 50A2622-F / DOC A A SECTION A-A.
657 Size 80 and 100 Actuators Instruction Manual Form 1909 August 2006 20 Fisher Marshalltown, Iowa 50158 USA Cernay 68700 France Sao Paulo 05424 Brazil Singapore 128461 Emerson Process Management www.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Fisher 657 è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Fisher 657 - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Fisher 657 imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Fisher 657 ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Fisher 657, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Fisher 657.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Fisher 657. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Fisher 657 insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
