Samson 3331/3278 Mounting And Operating Instructions Download Page 10

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Customer inquiries

Please submit the following details:

Order number

Type designation, model number, nomi-
nal size and version of the valve

Pressure and temperature of the process
medium

Flow rate in m

Bench range (spring range) of the actua-
tor

Installation drawing

Dimensions and weights

Refer to the Data Sheet T 8227 EN for the
dimensions and weights of the various valve
versions.

EB 8227 EN

Customer inquiries

Summary of Contents for 3331/3278

Page 1: ...ic Control Valve Type 3331 BR 31a Special version Type 3331 3278 Type 3331 Butterfly Valve Mounting and Operating Instructions EB 8227 EN Edition July 2004 Fig 1 Type 3331 BR 31a below and Type 3331 3...

Page 2: ...Maintenance 9 4 1 Packing 9 4 2 Removing the butterfly valve 9 5 Customer inquiries 10 2 EB 8227 EN Contents Note Non electrical actuators and valves do not have their own potential ignition source a...

Page 3: ...rol valve is only used in areas where the operating pressure and temperatures do not exceed the op erating values which are based on the valve sizing data submitted in the or der The manufacturer does...

Page 4: ...ly disc 8 and the flow rate across the free area be tween disc and body 1 The shaft is sealed by a packing 5 The ac tuator motion is transmitted over a square ended shaft In Type 3331 3278 a shaft wit...

Page 5: ...flange 3 Yoke 4 Shaft 4 2 Feather key 5 Packing 6 Spring 7 Tapered pins 8 Butterfly disc 9 Internal bearing 10 Plug 12 Type BR 31a Actuator 12 1 Stop 12 2 Stop screw 13 Type 3278 Actuator 13 1 Stop sc...

Page 6: ...ition 0 an gle of rotation 2 Fasten yoke 3 with 2 or 4 screws de pending on the nominal size of the valve to the flange of the shaft 4 3 Place shaft adapter if required onto the shaft Slide actuator o...

Page 7: ...ound the actuator shaft Valve CLOSED without supply air 1 Undo both stop screws 13 1 and 13 2 at the actuator Rescrew stop screw 13 2 to the point where the grooves of the actuator shaft are positione...

Page 8: ...vent the disc from opening Butterfly valves with angle seated low noise streamlined discs must be mounted without exception with the direction of flow indi cated by the arrow on the valve body On moun...

Page 9: ...nce work on the control valve depressurize the concerned section of the plant and drain the process medium if necessary Wait until the medium has cooled down if necessary We recommend removing the val...

Page 10: ...ze and version of the valve 4 Pressure and temperature of the process medium 4 Flow rate in m3 h 4 Bench range spring range of the actua tor 4 Installation drawing Dimensions and weights Refer to the...

Page 11: ...EB 8227 EN 11...

Page 12: ...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 EB 8227 EN S Z 2004 10...