Samson 251GR Series Mounting And Operating Instruction
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Samson 251GR Series Mounting And Operating Instruction

Samson 251GR Series Mounting And Operating Instruction

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EB 8003-GR EN
Translation of original instructions
SMS MG-1 Pneumatic Control Valve: Type 251GR Valve with Type 3271 Actuator
Type 251GR Valve · DIN version
In combination with an actuator,
e.g. a Type 3271 or Type 3277 Pneumatic Actuator
Edition November 2024

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Summary of Contents for Samson 251GR Series

  • Page 1 EB 8003-GR EN Translation of original instructions SMS MG-1 Pneumatic Control Valve: Type 251GR Valve with Type 3271 Actuator Type 251GR Valve · DIN version In combination with an actuator, e.g. a Type 3271 or Type 3277 Pneumatic Actuator Edition November 2024...
  • Page 2 Note on these mounting and operating instructions These mounting and operating instructions assist you in mounting and operating the device safely. The instructions are binding for handling SAMSON devices. The images shown in these instructions are for illustration purposes only. The actual product may vary.

  • Page 3: Table Of Contents

    Contents Safety instructions and measures ..............1-1 Notes on possible severe personal injury ............1-5 Notes on possible personal injury ..............1-5 Notes on possible property damage .............1-8 Notes on the use of an RFID tag ..............1-9 Warnings on the device ................1-9 Markings on the device ................2-1 Valve nameplate ..................2-1 Actuator nameplate ..................2-2 Material identification number ..............2-2...
  • Page 4 Contents 5.3.1 Mounting the external anti-rotation fixture .............5-4 Standard version for nominal sizes DN 125 and larger .........5-4 Special version for nominal sizes DN 50 to 100 ..........5-8 5.3.2 Mounting the actuator onto the valve ............5-15 Mounting the actuator ................5-16 Aligning the travel indicator scale ..............5-17 Installing the valve into the pipeline ............5-17 Testing the installed valve ................5-17 5.5.1...
  • Page 5 Removal ....................11-1 11.1 Removing the valve from the pipeline ............11-2 11.2 Removing the actuator from the valve ............11-2 Repairs ....................12-1 12.1 Returning devices to SAMSON ..............12-1 Disposal ....................13-1 Certificates ....................14-1 Appendix ....................15-1 15.1 Tightening torques, lubricants and tools ............15-1 15.1.1 Tightening torques ..................15-2...

  • Page 7: Safety Instructions And Measures

    In case operators intend to use the control valve in applications or conditions other than those specified, contact SAMSON. SAMSON does not assume any liability for damage resulting from the failure to use the de- vice for its intended purpose or for damage caused by external forces or any other external factors.
  • Page 8 (see associated actuator documentation). When the valve is combined with a SAMSON Type 3271 or Type 3277 Pneumatic Actuator, the valve moves to a certain fail- safe position (see the 'Design and principle of operation' chapter) upon supply air or control signal failure.
  • Page 9 Start-up and shutdown procedures fall within the scope of the operator's duties and, as such, are not part of these mounting and operating instructions. SAMSON is unable to make any statements about these procedures since the operative details (e.g. differential pressures and temperatures) vary in each individual case and are only known to the operator.
  • Page 10 REACH regulation, the document "Additional Information on Your In- quiry/Order" is added to the SAMSON order documents. This document includes the as- signed SCIP number, which can be entered into the database on the European Chemicals Agency (ECHA) website (uhttps://www.echa.europa.eu/scip-database ) to find out...

  • Page 11: Notes On Possible Severe Personal Injury

    Safety instructions and measures 1.1 Notes on possible severe personal injury DANGER Risk of bursting in pressure equipment. Valves and pipelines are pressure equipment. Excessive pressurization or improper opening can lead to valve components bursting. Î Observe the maximum permissible pressure for valve and plant. Î...
  • Page 12 Risk of personal injury due to preloaded springs in pneumatic actuators. Valves in combination with pneumatic actuators with preloaded springs are under ten- sion. These control valves with SAMSON pneumatic actuators can be identified by the long bolts protruding from the bottom of the actuator.
  • Page 13 Safety instructions and measures WARNING Risk of personal injury due to incorrect removal of the anti-rotation fixture under ten- sion. Once the actuator has been mounted on the valve and the assembly is ready for use, the clamps of the anti-rotation fixture on the plug stem are under tension. Î...

  • Page 14: Notes On Possible Property Damage

    Parts that are too loose may cause leakage. Î Observe tightening torques. Risk of valve damage due to the use of unsuitable tools. Certain tools are required to work on the valve. Î Only use tools approved by SAMSON. EB 8003-GR EN...

  • Page 15: Notes On The Use Of An Rfid Tag

    The lubricants to be used depend on the valve material. Unsuitable lubricants may cor- rode and damage surfaces. Î Only use lubricants approved by SAMSON. Risk of the process medium being contaminated through the use of unsuitable lubri- cants and/or contaminated tools and components.
  • Page 16 1-10 EB 8003-GR EN...

  • Page 17: Markings On The Device

    Markings on the device 2 Markings on the device The nameplate shown was up to date at the time of publication of this document. The nameplate on the device may differ from the Fig. 2-2: Inscriptions on the valve nameplate one shown. Item Inscription meaning 2.1 Valve nameplate 1 Data Matrix code...

  • Page 18: Actuator Nameplate

    The serial number enables you to view the 3: ST 3 · 1/PSA: ST 1 standard and inte- device's current technical data as configured grated in seat for PSA valve · by SAMSON. The material number enables AC-1/AC-2/AC-3/AC-5: anti-cavitation you to view the device's technical data as trim, versions 1 to 5 configured by SAMSON upon delivery of LK: perforated plug ·...

  • Page 19: Optional Rfid Tag

    Markings on the device Fig. 2-3: Label when an adjustable packing is installed 2.5 Optional RFID tag The RFID tag is located directly next to the nameplate on valves ordered with the RFID tag option. It contains the same data as the DataMatrix code on the electronic name- plate.
  • Page 20 EB 8003-GR EN...

  • Page 21: Design And Principle Of Operation

    SAMSON recommends the use of position- ers with integrated diagnostic firmware (see Chapter 3.5) for valves used for on/off ser- vice. The partial stroke test included in this...
  • Page 22 Design and principle of operation A26/27 Fig. 3-1: Type 251GR Valve with Type 3271 Pneumatic Actuator (left) or Type 3277 Pneumatic Actuator (right) EB 8003-GR EN...
  • Page 23 Design and principle of operation Fig. 3-2: Type 251GR Valve with insulating section (left) and bellows seal (right) Legend for Fig. 3-1 to Fig. 3-2 1 Valve body 22 Intermediate piece with 126 Spiral gasket 2 Standard bonnet 182 Spiral gasket bellows seal 4 Seat 223 Anti-rotation fixture 32 Bolt 5 Plug...
  • Page 24 Design and principle of operation Screwed-in seat and plug with pressure balancing Screwed-in seat and plug (47) Screwed-in seat and plug Screwed-in seat and plug with pressure with flow divider ST1 balancing and flow divider ST1 (47) Fig. 3-3: Type 251GR Valve · Trim versions EB 8003-GR EN...
  • Page 25 Design and principle of operation Clamped-in seat and plug with pressure balancing Clamped-in seat and plug (47) Cage and piston Legend for Fig. 3-3 and Fig. 3-4 4 Seat 5 Plug/piston 7 Bushing 36 Plug/piston stem 45 Seal (pressure balancing) 47 Plug guide 51 Guide ring 62 Flow divider 63 Support element (version with...

  • Page 26: Fail-Safe Positions

    The The fail-safe action of the SAMSON valve closes when the signal pressure is in- Type 3271 and Type 3277 Pneumatic Actua- creased enough to overcome the force exert- tors depends on how the compression ed by the springs.

  • Page 27: Valve Accessories

    Design and principle of operation 3.6 Technical data Insulation Control valves can be insulated to reduce Control valve identification heat energy transfer. The nameplates on the valve and actuator Refer to the instructions in the 'Installation' provide information on the control valve ver- chapter.
  • Page 28 Type 251GR Valve. The lengths and heights in the dimensional drawings are shown on Noise emissions page 3-11. SAMSON is unable to make general state- ments about noise emissions. The noise emis- sions depend on the valve version, plant fa- cilities and process medium.
  • Page 29 Design and principle of operation Table 3-1: Dimensions in mm for Type 251GR Valve, DN 15 to 80 Valve PN 16 to 40 Length L Flanges PN 63 to 160 Length L PN 16 to 40 Welding PN 63 to 160 ends Height H4 Standard version Height H4 with insulating...
  • Page 30 Design and principle of operation Table 3-2: Dimensions in mm for Type 251GR Valve, DN 100 to 200 Valve PN 16 to 40 Length L Flanges PN 63 to 160 Length L PN 16 to 40 Welding PN 63 to 160 ends Height H4 Standard version Height H4 with insulating...
  • Page 31 Design and principle of operation Dimensional drawings Standard version Version with insulating section Version with bellows seal EB 8003-GR EN 3-11...
  • Page 32 Design and principle of operation Table 3-3: Weights in kg (approx.) for Type 251GR Valve with B1 flanges according to  1) DIN EN 1092-1 Valve Standard version PN 16 PN 25 – Valve PN 40 without PN 63 actuator PN 100 PN 160 – Version with insulating section PN 16 PN 25 –...

  • Page 33: Shipment And On-Site Transport

    Î Close off and secure the transport paths. 2. Check the shipment for transportation damage. Report any damage to WARNING SAMSON and the forwarding agent Risk of lifting equipment tipping over and (refer to delivery note). risk of damage to lifting accessories due to 3.

  • Page 34: Transporting The Valve

    A swivel hoist can be screwed into − Protect the piping and any mounted SAMSON actuators with a female thread on valve accessories against damage. the top diaphragm case in place of the − Protect the control valve against moisture eyebolt (see associated actuator and dirt.

  • Page 35: Lifting The Valve

    Shipment and on-site transport 4.3.2 Lifting the valve Valve version with flanges 1. Attach one sling to each flange of the To install a large valve into the pipeline, use body and to the rigging equipment (e.g. lifting equipment (e.g. crane or forklift) to lift hook) of the crane or forklift (see Fig. 4-1).
  • Page 36 Shipment and on-site transport Fig. 4-1: Lifting points on the valve assembly (example shown): without additional lashing point on the actuator (left), including additional lashing point on the actuator (center), lifting using beam (right) EB 8003-GR EN...

  • Page 37: Storing The Valve

    Î Observe the storage instructions. the following valves upright with the ac- Î Avoid longer storage periods. tuator on top: Î Contact SAMSON in case of different − ≥DN 100 in versions with pressure storage conditions or longer storage balancing times.
  • Page 38 EB 8003-GR EN...

  • Page 39: Installation

    The work position for the control valve is the ommendations. Contact SAMSON if the front view looking onto the operating con- trols (including valve accessories). Table 5-1: Inlet and outlet lengths...

  • Page 40: Preparation For Installation

    Î Locate the vent plug on the opposite side Î Contact SAMSON if the mounting posi- to the work position of operating person- tion is not as specified above.
  • Page 41 Installation dium temperature etc.). See the 'Mark- Proceed as follows: ings on the device' chapter for name- Î Lay out the necessary material and tools plate details. to have them ready during installation − The requested or required additional work. pipe fittings (see the 'Additional fittings' Î...

  • Page 42: Mounting The Device

    2. Insert ball bearings (310) into the recess- suitable tools. es in the bonnet. Î Only use tools approved by SAMSON. 3. Place the yoke (3) on the bonnet in such a way that the ball bearings fit into the 5.3.1...
  • Page 43 Installation through the holes in the packing 14. Gradually tighten the screws (303) in a flange of the spring-loaded packing. crisscross pattern. Observe the tightening torques specified in Table 5-2. Version with centrally fastened packing: Continue as described in step 6. Table 5-2: Tightening torques 6.
  • Page 44 Installation Plug stem Legend Yoke Screws Hanger Travel indicator scale Screws Castellated nut Warning label Ball bearing Fig. 5-2: Overview of yoke assembly with travel indicator scale in the standard version EB 8003-GR EN...
  • Page 45 Installation Plug stem Legend Stem Lubricant Gleitmo 1763 V Clamps Screws Washers Sliding washers Fig. 5-3: Overview of anti-rotation fixture assembly in the standard version EB 8003-GR EN...
  • Page 46 Installation b) Special version for nominal 6. Version with packing flange: sizes DN 50 to 100 i. Place the packing flange (162) over the studs (164) of the valve bonnet See Fig. 5-2 and Fig. 5-6 (2/21) on the packing follower (8). 1. Version with packing flange: ii.
  • Page 47 Installation 12. Retract the actuator stem to relieve the In line with stem (9). pipeline axis 13. Gradually tighten the screws (303) in a crisscross pattern. Observe the tightening torques specified in Table 5-3. Table 5-3: Tightening torques Item Screw size Tightening torque [Nm] 90°...
  • Page 48 Installation Legend Yoke Screws Plug stem Hanger Travel indicator scale Castellated nut Warning label Holder Screws Washers Fig. 5-5: Overview of yoke assembly with travel indicator scale in the special version 5-10 EB 8003-GR EN...
  • Page 49 Installation Plug stem Legend Stem Lubricant Gleitmo 1763 V Clamps Screws Washers Sliding washers Fig. 5-6: Overview of anti-rotation fixture assembly in the special version EB 8003-GR EN 5-11...
  • Page 50 Installation Table 5-4: Mounting dimensions for Types 3271 and 3277 Pneumatic Actuators · See Fig. 5-7 for dimensional drawing Actuator Actuator preloading Dimension when the valve is closed [mm] Travel [cm²] [mm] [mm] DN 50 to 100/NPS 2 to 4 · Special version 3.75 –...
  • Page 51 Installation Actuator Actuator preloading Dimension when the valve is closed [mm] Travel [cm²] [mm] [mm] DN 200 to 250/NPS 8 to 10 up to seat bore 200 · Standard version 1000 1400-60 87.5 1400-120 2800 5600 EB 8003-GR EN 5-13...
  • Page 52 Installation Ball bearings (standard version only) Fig. 5-7: Dimensional drawing with mounting dimensions for Types 3271 and 3277 Pneumatic Actuators 5-14 EB 8003-GR EN...

  • Page 53: Mounting The Actuator Onto The Valve

    WARNING plug stem. Risk of personal injury due to preloaded springs in pneumatic actuators. Depending on the version, SAMSON control Valves in combination with pneumatic valves are either delivered with the actuator actuators with preloaded springs are under already mounted on the valve or the valve tension.

  • Page 54: Mounting The Actuator

    Installation Î Before mounting the actuator, check the 2x small V-ports hole pattern of the perforated plug and determine which hole is the closest to the seal facing and is uncovered first when the plug is lifted out of the seat. Î...

  • Page 55: B) Aligning The Travel Indicator Scale

    Installation b) Aligning the travel indicator row on the valve indicates the direction of flow. scale 5. Make sure that the correct flange gaskets After mounting the actuator, the travel indi- are used. cator scale must be aligned. To do so, align 6.
  • Page 56 Valves in combination with pneumatic actua- tors with preloaded springs are under ten- sion. These control valves with SAMSON WARNING WARNING pneumatic actuators can be identified by the Crush hazard arising from moving parts long bolts protruding from the bottom of the (actuator stem and plug/piston stem).

  • Page 57: Leakage

    Installation To test the valve functioning before start-up 7. Depressurize the pipeline section and or putting back the valve into operation, per- valve. form the following tests: 8. Rework any parts that leak (see section “Adjusting the packing”) and repeat the 5.5.1 Leakage leak test.
  • Page 58 Installation NOTICE Impaired valve functioning due to increased friction as a result of the threaded bushing or packing flange being tightened too far. Î Make sure that the plug/piston stem can still move smoothly after the threaded bushing or the packing nuts on the pack- ing flange have been tightened.

  • Page 59: Travel Motion

    Installation Legend for Fig. 5-11 and Fig. 5-12 Valve bonnet Packing follower Packing set Plug/piston stem Yoke Castellated nut Packing flange Fig. 5-11: Version with packing flange (without Packing nut and washer (or disk external spring elements) springs with packing flange loaded by external spring elements) Stud 5.5.2...

  • Page 60: Fail-Safe Position

    Installation 5.5.3 Fail-safe position The fail-safe position of a valve can only be checked when the valve is combined with an actuator that moves to the fail-safe position upon air supply or control signal failure. Fail-safe position with pneumatic actuators with integrated springs Î...

  • Page 61: Start-Up

    Start-up 6 Start-up pneumatic actuator or pneumatic valve ac- cessories not fitted with noise-reducing ele- The work described in this chapter is to be ments. Both can damage hearing. performed only by personnel appropriately Î Follow the standard operating proce- qualified to carry out such tasks.
  • Page 62 Start-up Î Wear eye protection when working in close proximity to pneumatic fittings and in the danger zone of the vent openings. Before start-up or putting the valve back into service, make sure the following conditions are met: − The control valve is properly installed in the pipeline (see the 'Installation' chap- ter).

  • Page 63: Operation

    Operation 7 Operation pneumatic actuator or pneumatic valve ac- cessories not fitted with noise-reducing ele- Immediately after completing start-up or put- ments. Both can damage hearing. ting the valve back into operation, the valve Î Follow the standard operating proce- is ready for use.

  • Page 64: Normal Operation

    Operation Î Wear eye protection when working in close proximity to pneumatic fittings and in the danger zone of the vent openings. 7.1 Normal operation Control valve with pneumatic actuator The handwheel of valves with actuators fitted with a handwheel must be in the neutral po- sition during normal operation.

  • Page 65: Malfunctions

    Malfunctions 8 Malfunctions Read hazard statements, warnings and caution notes in the 'Safety instructions and mea- sures' chapter. 8.1 Troubleshooting Malfunction Possible reasons Recommended action Actuator and plug/ Actuator is blocked. Put the control valve out of operation (see the piston stem does not 'Decommissioning' chapter) and remove the move on demand.

  • Page 66: Emergency Action

    Malfunctions Malfunction Possible reasons Recommended action The valve leaks to the Defective packing Replace packing (see the 'Servicing' chapter) or atmosphere (fugitive contact our after-sales service. emissions). Version with adjustable Adjust the packing (see section 'Adjusting the packing : Packing not packing' in the 'Installation' chapter >...

  • Page 67: Servicing And Conversion

    Servicing and conversion 9 Servicing and conversion Î Depressurize all plant sections affected and the valve (including the actuator). The work described in this chapter is to be Release any stored energy. performed only by personnel appropriately Î Drain the process medium from the plant qualified to carry out such tasks.
  • Page 68 These control valves with SAMSON Î Before working on the control valve, dis- pneumatic actuators can be identified by the connect and lock the pneumatic air sup- long bolts protruding from the bottom of the ply as well as the control signal.

  • Page 69: Periodic Testing

    Servicing and conversion Î Follow the standard operating proce- Note dures provided by the plant operator. The control valve was checked by SAMSON In the event of a potential risk: before delivery. Î Wear protective clothing, safety − Certain test results certified by SAMSON...
  • Page 70 Servicing and conversion SAMSON recommends the following inspections and tests: Inspection and testing Recommended action to be taken in the event of a negative result Check the markings, labels and Immediately renew damaged, missing or incorrect nameplates on the valve for their nameplates or labels.
  • Page 71 Before unblocking the actuator, release any stored energy in the actuator (e.g. spring compression). See associated actuator documentation. SAMSON recommends the use of positioners with integrated diagnostic firmware for valves used for on/off service. The partial stroke test included in this software helps prevent a shut-off valve normally in its end position from seizing up or getting jammed.
  • Page 72 Servicing and conversion External leakage: External leakage: Body gaskets at bellows seal/insulating Plug stem section/intermediate piece guide (packing)  2) External leakage: Body gaskets Test connection External leakage: Seat leakage: to monitor Metal bellows • Seat/body  2) bellows for • Plug/seat leakage External leakage: At pipeline...

  • Page 73: Preparation For Servicing Or Conversion Work

    SAMSON recommends removing the valve from the pipeline before performing any ser- 1. Lay out the necessary material and tools vice work (see the 'Removal' chapter).

  • Page 74: Mounting The Actuator On The Valve After Service And Conversion Work

    Servicing and conversion 9.3 Mounting the actuator on requirements and conditions for start-up or putting the valve back into operation. the valve after service and conversion work 9.4 Service or conversion work 1. Valve version without anti-rotation fix- Î Before performing any service or conver- ture: Loosely thread the lock nut (10) and sion work, preparations must be made to stem connector nut (9) on the plug/pis-...

  • Page 75: Replacing Gaskets In Versions With Standard Bonnet (2) Or Insulating Section

    Servicing and conversion 9.4.1 Replacing gaskets in Packing with packing flange: versions with standard i. Gradually unthread the two packing nuts (163) at the hex head in a criss- bonnet (2) or insulating cross pattern. section (21) ii. Lift the two packing nuts and their washers (or disk springs when pack- NOTICE ing flange is loaded by external...

  • Page 76: C) Version With Cage And Piston

    19. Install the packing (see Chapter 9.4.2). right into the body (1) and center them on the seat (4). Version with V-port plug: Align the plug SAMSON recommends using new packing (5), making sure that the largest parts. V-shaped port of the V-port plug faces toward the valve outlet.

  • Page 77: Replacing The Packing In Versions With Standard Bonnet (2) Or Insulating Section (21)

    Servicing and conversion 9.4.2 Replacing the packing in Depending on packing version and ap- plication: versions with standard Apply a suitable lubricant to all the pack- bonnet (2) or insulating ing parts and to the plug/piston stem section (21) (36). Or if applicable: a) Packing centrally fastened Do not use any lubricant.

  • Page 78: B) Version With Packing Flange (With Or Without External Spring Elements)

    Servicing and conversion boreholes on the top of the bonnet must 2. Lift the two packing nuts and their wash- be at a right angle to the pipeline axis. ers (or disk springs when packing flange is loaded by external spring elements) as 12.
  • Page 79 Servicing and conversion them in the seat (4) in the closed posi- chamber using a suitable tool. Refer to tion. the documentation of the spare packing for the correct sequence and alignment Version with V-port plug: Align the plug of the parts. (5), making sure that the largest V-shaped port of the V-port plug faces 16.

  • Page 80: Replacing The Trim In Versions With Standard Bonnet (2) Or Insulating Section

    Î Always replace both the seat and plug. using a suitable tool. 5. Remove spiral gaskets (17, 126) from the body (1) or valve bonnet (2/21). SAMSON recommends using new packing parts and gaskets when replacing the trim. 9-14 EB 8003-GR EN...

  • Page 81: B) Removing The (Screwed-In) Seat And Plug

    Servicing and conversion 6. Pull the seat retainer (124) upward out of and plug stem (36) to ensure that the the body (1). Use special tool for large trim remains in the body (1). nominal sizes. 4. Pull all the packing parts out of the pack- 7.

  • Page 82: D) Installing The (Clamped-In) Seat And Plug

    Servicing and conversion d) Installing the (clamped-in) studs (164) off the valve bonnet (2/21). seat and plug iii. Pull out the packing follower (8). 1. Clean the inside of the valve body (seat- 2. Undo the body nuts (14) gradually in a ing surfaces of the gaskets) and check it crisscross pattern.

  • Page 83: E) Installing The (Screwed-In) Seat And Plug (≤Dn 150, ≤Pn 100)

    Servicing and conversion 8. Insert a new spiral gasket (17) into the 6. Insert the plug (5) and plug stem (36) up- body (1). right into the body (1) and center them on the seat (4). 9. Place the valve bonnet (2/21) including yoke (60) from the top over the plug stem Version with V-port plug: Align the plug (36) on the body (1).

  • Page 84: F) Installing The Cage And Piston

    Servicing and conversion 12. Install the packing (see Chapter 9.4.2) 7. Place a new seal (45) on the cylinder (63). Make sure the seal is properly f) Installing the cage and piston aligned (see Fig. 9-3). 8. Place the cylinder (63) together with the seal (45) over the piston stem (36) on the NOTICE cage (124).
  • Page 85 Servicing and conversion In line with pipeline axis Alignment of the seal 90° to the FTO (flow-to-open) pipeline axis Pipeline axis Valve body Bonnet Fig. 9-3: Alignment of the seal (45) Threaded bushing Plug/piston stem Yoke Castellated nut Studs (when a packing flange is used) Fig. 9-4: Alignment of bonnet on the valve body and alignment of yoke on the...

  • Page 86: Replacing The Plug/Piston On The Plug/Piston Stem

    Servicing and conversion 9.4.4 Replacing the plug/ piston on the plug/ piston stem The plug/piston and plug/piston stem are fastened together. To prevent the plug/piston from becoming unintentionally detached from the plug/piston stem, the connection is additionally secured by a tangentially insert- ed pin (see Fig. 9-5).

  • Page 87: Ordering Spare Parts And Operating Supplies

    Servicing and conversion 9.5 Ordering spare parts and operating supplies Contact your nearest SAMSON subsidiary or SAMSON's After-sales Service for infor- mation on spare parts, lubricants and tools. Spare parts See the Appendix for details on spare parts. Lubricants See the Appendix for details on suitable lu- bricants.
  • Page 88 9-22 EB 8003-GR EN...

  • Page 89: Decommissioning

    Decommissioning 10 Decommissioning WARNING The work described in this chapter is to be For valves with a bellows seal, there is a performed only by personnel appropriately risk of personal injury due to pressurized qualified to carry out such tasks. components and as a result of process me- dium being discharged.
  • Page 90 Decommissioning Î Do not impede the movement of the actu- To decommission the control valve for service ator stem and plug/piston stem by in- work or to remove it from the pipeline, pro- serting objects into the yoke. ceed as follows: Î...

  • Page 91: Removal

    (actuator stem and plug/piston stem). actuators with preloaded springs are under Î Do not insert hands or finger into the tension. These control valves with SAMSON yoke while the air supply is connected to pneumatic actuators can be identified by the the actuator.

  • Page 92: Removing The Valve From The Pipeline

    Removal 11.2 Removing the actuator WARNING from the valve Risk of personal injury due to incorrect re- moval of the anti-rotation fixture under ten- See associated actuator documentation. sion. Once the actuator has been mounted on the valve and the assembly is ready for use, the clamps of the anti-rotation fixture on the plug stem are under tension.

  • Page 93: Repairs

    Î Do not perform any repair work on your ration on Decontamination) to the out- own. side of your shipment so that the docu- Î Contact SAMSON's After-sales Service ments are clearly visible. for service and repair work. 4. Send the shipment to the address given on the RMA.
  • Page 94 12-2 EB 8003-GR EN...

  • Page 95: Disposal

    Î Do not dispose of components, lubricants and hazardous substances together with your household waste. Note SAMSON can provide you with a recycling passport according to PAS 1049 on request. Simply e-mail us at aftersalesservice@samsongroup.com giving details of your company address.
  • Page 96 13-2 EB 8003-GR EN...

  • Page 97: Certificates

    Certificates 14 Certificates These declarations are included on the next pages: − Declaration of conformity in compliance with Pressure Equipment Directive 2014/68/EU on page 14-2 − Declaration of conformity in compliance with Machinery Directive 2006/42/EC for Types 251GR-1 and 251GR-7 Pneu- matic Control Valves on page 14-3 −...
  • Page 98 Frankfurt am Main, August 6, 2024 Dr. Andreas Widl Sebastian Krause Chief Executive Officer (CEO) Vice President Product Development Revision 12 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismüllerstrasse 3 · 60314 Frankfurt am Main, Germany Page 1 of 1 14-2 EB 8003-GR EN...
  • Page 99 § 35 and § 46 of the Guide to Application of the Machinery Directive 2006/42/EC issued by the European Commission. In the SAMSON Manual H 02 titled "Appropriate Machinery Components for SAMSON Pneumatic Control Valves with a Declaration of Conformity of Final Machinery", SAMSON defines the specifications and properties of appropriate machinery components that can be mounted onto the above specified final machinery.
  • Page 100 Frankfurt am Main, 7. November 2024 Stephan Giesen Sebastian Krause Director Product Management Vice President Product Development Revision no. 00 Classification: Public · SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Page 1 of 1 14-4 EB 8003-GR EN...

  • Page 101: Appendix

    Appendix 15 Appendix 15.1 Tightening torques, lubricants and tools Fig. 15-6: Tightening sequence depending on the number of bolts (4, 8, 10, 12, 14, 16, 18 and 20 bolts) EB 8003-GR EN 15-1...

  • Page 102: Tightening Torques

    Appendix Table 15-1: Numerical tightening sequence of bolts numbered in the clockwise direction Number of bolts Tightening sequence of bolts numbered sequentially in the clockwise direction 1, 3, 2, 4 1, 5, 3, 2, 6, 4 1, 5, 3, 7, 2, 6, 4, 8 1, 5, 3, 7, 9, 2, 6, 4, 8, 10 1, 5, 9, 3, 7, 11, 2, 6, 10, 4, 8, 12 1, 5, 9, 3, 7, 11, 13, 2, 6, 10, 4, 8, 12, 14...
  • Page 103 Appendix Table 15-2: Tightening torques to install the seat Nominal size Tightening torque for retaining ring for seat (221) 1200 1700 5300 8900 Table 15-3: Tightening torques for nuts (14) on valve bonnet (2/21/101) Tightening torque for body nut (14) Pressure rating Nominal size –...
  • Page 104 Appendix Table 15-4: Tightening torques for plug/piston stem (36) Stem diameter Tightening torque for plug stem (36) in plug (5)/piston stem (36) in piston (5) Ø in mm On request Table 15-5: Tightening torques for threaded bushing (8) (version with centrally fastened packing) Packing form Adjustable...

  • Page 105: Tools

    Contact SAMSON's After-sales Service to obtain specially designed tools required for ser- vice or conversion work.

  • Page 106: Lubricants

    Appendix 15.1.3 Lubricants WARNING WARNING Exposure to hazardous substances poses a serious risk to health. Certain lubricants and cleaning agents are classified as hazardous substances. These substances have a special label and a mate- rial safety data sheet (MSDS) issued by the manufacturer.
  • Page 107 Appendix Table 15-8: Recommended lubricant Temperature Item Application Trade name Color Material no.  2) range in °C Chemical-resistant, 8150-4000 (10 g) 113/ high-temperature grease Gleitmo  591 –25 to +260 White  1) ® 8150-0111 (1 kg) e.g. lubricant for packings High-temperature lubricant 8150-4008 (250 g) (paste): item 13/14, Gleitmo  1763 V –20 to +1000...

  • Page 108: Spare Parts

    Appendix 15.2 Spare parts Valve body Flow divider Standard bonnet Support element (version with screwed-in seat) Seat Cylinder (cage version) Plug Clamping ring for flow divider ST1 Piston Nameplate Bushing  1) Grooved pin Threaded bushing Screw Packing follower Hanger Stem connector nut Travel indicator scale Lock nut Dust shield...
  • Page 109 Centrally Packing with fastened Packing with packing packing (live- packing flange flange (live- loaded or (adjustable loaded by adjustable, without external depending on external spring spring the packing elements) elements) set) Valves with bellows seal Version with insulating section Standard bonnet Clamped-in seat and...

  • Page 110: After-Sales Service

    You can reach our after-sales service at aftersalesservice@samsongroup.com. Addresses of SAMSON AG and its subsid- iaries The addresses of SAMSON AG, its subsid- iaries, representatives and service facilities worldwide can be found on our website (www.samsongroup.com) or in all SAMSON product catalogs.
  • Page 112 EB 8003-GR EN SAMSON AKTIENGESELLSCHAFT Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 samson@samsongroup.com · www.samsongroup.com...

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3271 series3277 series

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