Samson 3374 Mounting And Operating Instructions Download

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Electric Actuator
Type 3374

Mounting and
Operating Instructions

EB 8331-1 EN

Edition March 2004

Fig. 1

⋅

Type 3374 Actuator mounted on Type 3535 Three-way Valve

Summary of Contents for 3374

Page 1: ...Electric Actuator Type 3374 Mounting and Operating Instructions EB 8331 1 EN Edition March 2004 Fig 1 Type 3374 Actuator mounted on Type 3535 Three way Valve...

Page 2: ...ding to these mounting and operating instructions trained personnel is referred to as individuals who are able to judge the work they are assigned to and recognize possible dangers due to their specia...

Page 3: ...rily used for attachment to Type 3260 DN 65 to 150 Type 3214 DN 65 to 150 and Series V 2001 Valves Actuator versions for central attachment using an M30 x 1 5 ring nut are preferably combined with Typ...

Page 4: ...torque Rated temperature range 5 to 60 C Storage temperature range 20 to 70 C Degree of protection IP 54 acc to IEC 529 IP 65 with cable glands1 Suspended mounting not approved Overvoltage category II...

Page 5: ...1 10 and higher Setting With travel calibration button 1 mm each time the button is pressed Acc to predetermined values3 with button 1 binary input Electrically isolated switching voltage 18 to 30 V D...

Page 6: ...he yoke and the top of the coupling nut 8 is reached Secure position with lock nut 9 3 Place actuator onto valve bonnet 2 3 and fasten with ring nut 7 If necessary retract actuator stem slightly befor...

Page 7: ...125 to 150 1 Actuator 2 1 Actuator yoke 2 2 Valve yoke 2 3 Bonnet 3 Actuator stem 4 Stem connector 5 Plug stem 6 Nut 7 Ring nut 8 Coupling nut 9 Lock nut 10 Travel indicator scale Attachment to Series...

Page 8: ...tions as indicated on the circuit diagram included in the actuator cover and as illustrated in Figs 3 and 4 A maximum of 3 cable glands can be at tached to the housing for cable entries Fig 3 Terminal...

Page 9: ...with a sufficiently large cross section to guarantee that the permissible voltage tolerances are not exceeded Fig 4 Terminal connections for version with digital positioner 31 32 33 13 12 11 41 44 42...

Page 10: ...switch until the associ ated contact cam on the cam bracket 7 triggers the switch contact of the upper or lower microswitch 1 4 2 2 Potentiometers The gears of the potentiometers 12 and 13 must be pu...

Page 11: ...ch Stem retracts Rated travel inscription Metal tag Stem extends 1 Microswitch 2 Spindle upwards 3 Spindle downwards 5 Intermediate gear 7 Cam bracket 12 Gear potentiometer 1 12 1 Potentiometer shaft...

Page 12: ...actuator has been mounted on the valve as described in section 2 2 and the electrical connections have been installed as described in section 3 proceed as follows 1 Set selector switch 2 with the arr...

Page 13: ...en the shut off valves in the plant are closed Fig 6 Selector switch in the version with digital positioner 1 5 N e n n h u b 12 12 1 Rated travel inscription Stellungsregler Positioner R gulateur de...

Page 14: ...ust it manually Do not adjust the potentiometer before the closing position is actually reached This is indicated by the associated activated limit switch on the board Fig 5 on page 11 To proceed adju...

Page 15: ...ned events can be indicated see EB 8331 2 EN during positioner operation and transmitted to a control room 5 Retrofitting additional electrical equipment The actuator can be subsequently equipped with...

Page 16: ...oth ears of the retaining ring together with flat tongs 5 Plug both premounted contact cams 6 ring gear first onto the cam bracket 7 6 Push adjustment gears 8 onto their spindles and fasten with one s...

Page 17: ...extends For actuator stem retracts 1 Actuator board 2 Spindle gear 3 Sleeve 4 Spindle 5 Intermediate gear 6 Contact cam 7 Cam bracket 8 Adjustment gears 9 Spacer 10 Serrated ring 11 Terminal board wi...

Page 18: ...engaged in the groove of the sleeve 3 Plug intermediate gear 5 onto the spindle 4 Place the serrated ring 10 on top and push it down until it will not go any further 4 The potentiometer gears 12 and 1...

Page 19: ...lug intermediate gear 5 onto the spindle 4 Place the serrated ring 10 on top and push it down until it will not go any further 4 The gear 12 on the feedback poten tiometer which is equipped with a re...

Page 20: ...6 Dimensions in mm Version with yoke Version with ring nut Stem connector 120 50 15 30 294 60 193 90 75 204 30 15 20 EB 8331 1 EN Dimensions in mm...

Page 21: ...EB 8331 1 EN 21...

Page 22: ...SAMSON AG MESS UND REGELTECHNIK Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 Internet http www samson de S Z 2004 03 EB 8331 1 EN...