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EB 8052 EN

15

Design and principle of operation

1

Body

2

Bonnet

3

Yoke

4

Seat

5

Plug (with plug stem)

8

Threaded bushing

(packing nut)

9

Stem connector nut

10

Lock nut

14

Nut

15

Packing

17

Body gasket

84

Travel indicator scale

92

Castellated nut

A

Actuator

A4

Diaphragm

A7

Actuator stem

A8

Ring nut

A10 Spring
A16 Vent plug
A26 Stem connector clamps

S

Signal pressure

connection

A16
A10

A4

S

A7

84

A26

9

10

8

92

3

2
5
4

A

A8

15

14

17

1

S

Fig. 3:

Type 3251 Valve with Type 3271 Pneumatic Actuator (left) and Type 3277 Pneumatic

Actuator (right)

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Содержание 3251

Страница 1: ...ctions EB 8052 EN Translation of original instructions Edition July 2016 Type 3251 Valve with Type 3271 Actuator Type 3251 Valve In combination with an actuator e g a SAMSON Type 3271 or Type 3277 Pne...

Страница 2: ...partment aftersalesservice samson de The mounting and operating instructions for the devices are included in the scope of delivery The latest documentation is available on our website www samson de Pr...

Страница 3: ...16 4 Measures for preparation 24 4 1 Unpacking 24 4 2 Transporting and lifting 24 4 2 1 Transporting 25 4 2 2 Lifting 25 4 3 Storage 28 4 4 Preparation for installation 29 5 Mounting and start up 30...

Страница 4: ...ection 48 7 4 Preparation for return shipment 49 7 5 Ordering spare parts and operating supplies 49 8 Malfunctions 50 8 1 Troubleshooting 50 8 2 Emergency action 51 9 Decommissioning and disassembly 5...

Страница 5: ...ny other external factors Refer to the technical data and nameplate for limits and fields of application as well as possible uses Reasonably foreseeable misuse The control valve is not suitable for th...

Страница 6: ...property damage plant operators and operating personnel must prevent hazards that could be caused in the control valve by the process medium the operat ing pressure the signal pressure or by moving p...

Страница 7: ...ction 5 2 the non electrical control valves do not have their own potential ignition source even in the rare incident of an operating fault As a result they do not fall within the scope of Directive 2...

Страница 8: ...RNING Crush hazard arising from moving parts The control valve contains moving parts actuator and plug stems which can injure hands or fingers if inserted into the valve Do not insert hands or fingers...

Страница 9: ...ain the process medium from all the plant sections concerned and the valve Wear protective clothing safety gloves and eyewear Risk of burn injuries due to hot or cold components and pipelines Dependin...

Страница 10: ...ts that are too loose may cause leak age Observe the specified tightening torques u WA 0029 Risk of valve damage due to the use of unsuitable tools Certain tools are required to work on the valve Only...

Страница 11: ...EB 8052 EN 11...

Страница 12: ...rating DIN PN ANSI CL JIS K 12 Order no with modification index For after sales service orders AA prefix 13 Position in order For after sales service orders configuration ID 14 Flow coefficient DIN K...

Страница 13: ...ed actuator documentation 2 3 Material number The seat and plug of the valves have an arti cle number written on them Specifying this article number you can contact us to find out which material is us...

Страница 14: ...The springs are compressed Depending on the selected direction of action the actuator stem retracts or extends As a result the plug position in the seat changes and determines the flow rate through t...

Страница 15: ...Nut 15 Packing 17 Body gasket 84 Travel indicator scale 92 Castellated nut A Actuator A4 Diaphragm A7 Actuator stem A8 Ring nut A10 Spring A16 Vent plug A26 Stem connector clamps S Signal pressure con...

Страница 16: ...on The basic pneumatic actuator can be re placed by a pneumatic actuator with addi tional handwheel or by an electric actuator 3 3 Technical data The nameplates on the valve and actuator provide infor...

Страница 17: ...t noise emission as it depends on the valve version plant facilities and process medium On request SAMSON can perform calculations according to IEC 60534 Part 8 3 and Part 8 4 or VDMA 24422 edition 89...

Страница 18: ...ass 900 in 8 50 10 00 12 00 14 50 15 00 18 00 24 00 mm 216 254 305 368 381 457 610 Class 1500 in 8 50 10 00 12 00 14 50 18 50 21 50 27 75 mm 216 254 305 368 470 546 705 Class 2500 in 10 38 12 12 15 12...

Страница 19: ...0 19 80 mm 480 480 480 503 H2 NPS 4 and larger with foot Class 150 in 1 97 2 36 3 05 3 54 3 94 6 3 8 66 mm 50 60 80 90 100 160 220 Class 300 to 600 in 2 36 2 76 3 54 3 94 4 72 7 09 9 25 mm 60 70 90 10...

Страница 20: ...62 32 25 38 25 43 62 On request mm 610 752 819 972 1108 Class 900 in 29 00 33 00 38 00 40 50 On request mm 737 838 965 1029 Class 1500 in 32 75 39 00 44 50 49 50 On request mm 832 991 1130 1257 Class...

Страница 21: ...25 59 25 59 mm 503 503 3 650 650 650 650 2x2800 cm in 19 80 19 80 25 59 25 59 25 59 25 59 mm 503 503 3 650 650 650 650 H2 NPS 4 and larger with foot Class 150 in 9 84 12 21 14 57 On request 16 34 On...

Страница 22: ...re quest 75 126 159 348 496 1235 kg 34 57 72 158 225 560 Class 2500 lbs On re quest 93 163 238 379 604 2198 kg 42 74 108 172 274 997 Table 4 Weights for standard version of Type 3251 in NPS 8 and lar...

Страница 23: ...al insulating section or heating jacket The associated actuator documentation applies to actuators e g for SAMSON pneumatic actuators u T 8310 1 for Type 3271 and Type 3277 Actuators up to 750 cm actu...

Страница 24: ...e valve The protective caps fitted on the valve s inlet and outlet prevent foreign particles from en tering the valve and damaging it Do not remove the protective caps until im mediately before instal...

Страница 25: ...ve can be transported using lifting equipment e g crane or forklift Leave the control valve in its transport container or on the pallet to transport it Observe the transport instructions Transport ins...

Страница 26: ...nded when in terrupting work for longer periods of time Make sure that the axis of the pipeline is always horizontal during lifting and the axis of the plug stem is always vertical Make sure that the...

Страница 27: ...peline holds 7 Remove slings Version with welding ends 1 Attach one sling to each welding end of the body and to the rigging equipment e g hook of the crane or forklift see Fig 4 2 Secure the slings a...

Страница 28: ...less than 75 In damp spaces prevent condensation If necessary use a drying agent or heating Make sure that the ambient air is free of acids or other corrosive media The permissible storage temperature...

Страница 29: ...nation valve size material pressure rat ing and temperature range of the valve match the plant conditions size and pressure rating of the pipeline medium temperature etc For steam applications make s...

Страница 30: ...ve and actuator have not been assembled by SAMSON Versions with V port plug Each V port plug has three V shaped ports Depending on the valve size the size of the symmetrically arranged V shaped ports...

Страница 31: ...service and repair work on them Mounting position Generally we recommend installing the valve with the actuator upright and on top of the valve In the following versions the valve must be installed wi...

Страница 32: ...r and any mounted valve accessories can be ac cessed to operate them Note Table 5 Inlet and outlet lengths Q a x NPS b x NPS State of process medium Valve conditions Inlet length a Outlet length b Gas...

Страница 33: ...we rec ommend installing a suitable leakage indica tor e g a contact pressure gauge an outlet to an open vessel or an inspection glass Risk of personal injury due to pressurized components and proces...

Страница 34: ...peline 4 Proceed as described for Version with flanges steps 6 to 8 5 3 Quick check SAMSON valves are delivered ready for use To test the valve s ability to function the following quick checks can be...

Страница 35: ...hreaded bushing has been tightened 2 Open and close the valve several times 3 Check the valve for leakage visual in spection 4 Repeat steps 1 and 2 until the packing completely seals the valve If the...

Страница 36: ...injuries due to hot or cold com ponents and pipelines Depending on the process medium valve components and pipelines may get very hot or cold and cause burn injuries Wear protective clothing and safe...

Страница 37: ...EB 8052 EN 37...

Страница 38: ...ual pro cess medium in the valve While working on the valve residual process medium can escape and depending on its properties may lead to personal injury e g chemical burns Wear protective clothing s...

Страница 39: ...n all the following conditions are met The valve size is NPS 4 The valve does not have a balanced plug The valve does not have a flow divider To replace the gasket in other valve versions contact SAMS...

Страница 40: ...shing packing nut 9 Stem connector nut 10 Lock nut 14 Nut 15 Packing 17 Body gasket 21 Insulating section 92 Castellated nut 9 10 8 2 5 4 15 14 17 1 92 3 7 9 10 8 15 21 14 17 4 5 7 92 3 Fig 5 Standard...

Страница 41: ...the insulating section 21 with the body nuts 14 Tighten the nuts gradually in a crisscross pattern Ob serve tightening torques 8 Mount actuator See associated actuator documentation 9 Adjust lower or...

Страница 42: ...he body nuts 14 Tighten the nuts gradually in a crisscross pattern Observe tightening torques 15 Screw in the threaded bushing 8 and tighten it Observe tightening torques 16 Place yoke 3 on the flange...

Страница 43: ...dually in a crisscross pattern 4 Lift the insulating section 21 and plug with plug stem 5 off the body 1 5 Unthread the stem connector nut 9 and lock nut 10 from the plug stem 6 Unscrew the threaded b...

Страница 44: ...2 12 12 18 16 18 19 16 8 12 12 11 19 16 15 2 15 15 1 19 12 12 8 Threaded bushing 11 Spring 12 Washer 15 Packing entire 15 1 Shim with retaining ring 15 2 Seal 16 Packing ring 18 Bushing 19 Spacer Fig...

Страница 45: ...bed in Standard pack ing PTFE steps 1 to 12 2 Carefully slide the packing parts over the plug stem into the packing chamber us ing a suitable tool Observe the proper sequence see Fig 7 3 Slide the sea...

Страница 46: ...shing packing nut 9 Stem connector nut 10 Lock nut 14 Nut 15 Packing 17 Body gasket 21 Insulating section 92 Castellated nut 9 10 8 2 5 4 15 14 17 1 92 3 7 9 10 8 15 21 14 17 4 5 7 92 3 Fig 8 Standard...

Страница 47: ...e tightening torques 14 Apply a suitable lubricant to all the pack ing parts and to the new plug stem 5 We recommend replacing the packing as well See section 7 2 1 15 Slide the new plug with plug ste...

Страница 48: ...cant to all the pack ing parts and to the new plug stem 5 We recommend replacing the packing as well See section 7 2 2 15 Slide the new plug with plug stem 5 in to the insulating section 21 16 Place t...

Страница 49: ...ts for after sales service Declaration on Contamination 4 Send the valve together with the filled in form to your nearest SAMSON subsidi ary SAMSON subsidiaries are listed on our website at u www sams...

Страница 50: ...for leakage Actuator or plug stem does not move through the whole range Signal pressure too low Check the signal pressure Check the signal pressure line for leakage The valve leaks to the atmosphere...

Страница 51: ...fter sales Service department for malfunctions not listed in the table Note 8 2 Emergency action Upon supply air or control signal failure the valve moves to its fail safe position see sec tion 3 1 Th...

Страница 52: ...pipeline may be come very hot or cold Risk of burn injuries Allow components and pipelines to cool down or heat up Wear protective clothing and safety gloves 9 1 Decommissioning To decommission the co...

Страница 53: ...oving the actuator from the valve See associated actuator documentation 9 4 Disposal Observe local national and internation al refuse regulations Do not dispose of components lubri cants and hazardous...

Страница 54: ...s representatives and service facilities worldwide can be found on the SAMSON website in all SAMSON product catalogs or on the back of these Mounting and Operat ing Instructions Required specification...

Страница 55: ...all Fluids Einzeldrosselscheibe mehrstufig mit Anschwei ende Single attenuation plate multi stage with welding end Durchgangsventil Globe Valve 240 3241 ANSI Geh use GG Cl125 ab 5 Cast iron Body Cl12...

Страница 56: ...h metal bellows 39 Gasket 42 43 Screw plug with seal 44 Ring ring nut 1 45 Packing ring 1 46 Gasket 1 47 Support 1 48 Hexagon screw 1 49 Hexagon screw 1 50 Lock 1 51 Guide 1 several guides only for ve...

Страница 57: ...6 12 12 12 19 11 12 19 15 3 94 37 39 7 101 33 14 93 39 22 2 21 14 93 81 7 5 26 7 24 6 29 27 28 29 5 64 65 63 62 61 4 13 91 1 91 17 34 31 14 93 26 81 92 85 82 9 10 8 16 12 19 19 12 11 15 DN 15 150 NPS...

Страница 58: ...58 EB 8052 EN...

Страница 59: ...EB 8052 EN 59...

Страница 60: ...SAMSON AG MESS UND REGELTECHNIK Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 samson samson de www samson de EB 8052 EN 2017 05 16 English...

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