Samson 42-20 Mounting And Operating Instructions Download Page 16

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3-2

EB 3007 EN

Design and principle of operation

Type 2422 Valve, balanced by a bellows

(DN 15 to 250)

2
3
4
5

Type 42-20 with Type 2420 Actuator

23
13

Type 42-25 with Type 2425 Actuator with two

diaphragms

Type 42-25 with Type 2425 Actuator

Fig. 3-1:

Functional diagram for regulators, DN 15 to 250 with balancing bellows

Summary of Contents for 42-20

Page 1: ...tructions EB 3007 EN Type 42 20 and Type 42 25 Differential Pressure Regulators Self operated Regulators Opening Actuator Type 42 20 Differential Pressure Regulator Type 42 25 Differential Pressure Regulator Edition October 2022 ...

Page 2: ...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 Î For the safe and proper use of these instructions read them carefully and keep them for later reference Î If you have any questions about these instructions contact SAMSON s After sales Service aftersalesser...

Page 3: ...1 4 1 Accepting the delivered goods 4 1 4 2 Removing the packaging from the regulator 4 1 4 3 Transporting and lifting the regulator 4 2 4 3 1 Transporting the regulator 4 2 4 3 2 Lifting the regulator 4 3 4 4 Storing the regulator 4 4 5 Installation 5 1 5 1 Installation conditions 5 1 5 2 Preparation for installation 5 4 5 3 Installation 5 5 5 3 1 Installing the regulator 5 6 5 4 Testing the regu...

Page 4: ...s operating diaphragm 9 6 9 6 1 Type 2420 Actuator 9 6 9 6 2 Type 2425 Actuator 9 7 9 7 Ordering spare parts and operating supplies 9 8 10 Decommissioning 10 1 11 Removal 11 1 11 1 Removing the regulator from the pipeline 11 1 11 2 Removing the actuator from the valve 11 1 12 Repairs 12 1 12 1 Returning devices to SAMSON 12 1 13 Disposal 13 1 14 Certificates 14 1 15 Annex 15 1 15 1 Tightening torq...

Page 5: ...ume 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 Î Refer to the technical data and nameplate for limits and fields of application as well as possible uses Reasonably foreseeable misuse The regulators are not suitable for the following applications Use outside the limits defined ...

Page 6: ... injury or property damage plant operators and operating personnel must prevent hazards that could be caused in the regulator by the process medium the operating pressure or by moving parts by taking appropriate precautions Plant operators and operat ing personnel must observe all hazard statements warning and caution notes in these mounting and operating instructions Hazards resulting from the sp...

Page 7: ... differential pressures and temperatures vary in each individual case and are only known to the operator Responsibilities of operating personnel Operating personnel must read and understand these mounting and operating instructions as well as the referenced documents and observe the specified hazard statements warnings and caution notes Furthermore operating personnel must be familiar with the app...

Page 8: ...ting any work on the regulator depressurize all plant sections affected as well as the regulator Î Drain the process medium from all the plant sections affected as well as the regula tor Î Wear personal protective equipment Referenced documentation The following documents apply in addition to these mounting and operating instructions Mounting and operating instructions for e g Type 2 N NI Strainer...

Page 9: ... hearing loss or deafness due to loud noise The noise emissions depend on the valve version plant facilities and process medium Î Wear hearing protection when working near the valve Follow the instructions giv en by the plant operator Crush hazard arising from moving parts The regulator contains moving parts set point springs which can injure hands or fin gers if inserted into the regulator Î Do n...

Page 10: ...arm up to the ambient tempera ture Î Wear protective clothing and safety gloves Damage to health relating to the REACH regulation If a SAMSON device contains a substance which is listed as being a substance of very high concern on the candidate list of the REACH regulation this circumstance is indi cated on the SAMSON delivery note Î Information on safe use of the part affected u www samsongroup c...

Page 11: ...e pipelines in the plant Î Flush the pipelines before start up Risk of regulator damage due to the use of unsuitable lubricants The lubricants to be used depend on the regulator material Unsuitable lubricants may corrode and damage surfaces Î Only use lubricants approved by SAMSON When in doubt consult SAMSON Risk of leakage and regulator damage due to excessively high or low tightening torques Ob...

Page 12: ...e e g safety excess pressure valve or safety relief valve in the plant Incorrect control due to the formation of ice on the regulator Medium temperatures below 0 C may cause ice to form on the regulator depending on the air humidity This may affect in particular the functioning of the plug or dia phragm stem guide Î Prevent the formation of ice by taking appropriate precautions e g enclosure trace...

Page 13: ...ndex 3 Material number 4 Order number or date 5 KVS CV 6 Unassigned 7 Valve size 8 Pressure rating 9 Perm differential pressure 10 Perm temperature 11 Body material Nameplate of Type 2420 and Type 2425 Actuators DIN ANSI version 1 Actuator area DIN ANSI 2 Type 3 Material number and device index 4 ID number 5 Year of manufacture 6 1 Pressure rating in Pperm DIN ANSI 7 Valve size DIN ANSI 9 Δp set p...

Page 14: ...aterial identification number 2 3 1 Type 2422 Valve See the nameplate 11 for DIN ANSI ver sion body material for the material used For more details on the nameplate see sec tion 2 1 2 3 2 Type 2420 and Type 2425 Actuators Specifying the material number you can contact us to find out which material is used This is specified on the nameplate in the MNo field 3 for DIN ANSI For more de tails on the n...

Page 15: ...ragm and the upstream pressure p1 on the top of the diaphragm As a result the forces created by the upstream and downstream pressures acting on the plug are balanced out The differential pressure across the plant is transmitted over the high pressure and low pressure lines to the operating diaphragm 13 where it is converted into a positioning force This force moves the plug according to the force ...

Page 16: ...P2 1 2 3 4 5 17 11 12 13 15 20 16 18 19 22 14 23 20 24 26 57 Type 42 20 with Type 2420 Actuator _ 16 20 15 23 13 22 14 18 19 20 11 Type 42 25 with Type 2425 Actuator with two diaphragms 31 33 32 17 Type 42 25 with Type 2425 Actuator Fig 3 1 Functional diagram for regulators DN 15 to 250 with balancing bellows ...

Page 17: ...alve body 2 Seat 3 Plug 4 Plug stem 5 Balancing bellows 5 1 Balancing diaphragm DN 65 to 250 11 Coupling nut 12 Diaphragm stem 13 Operating diaphragm 14 Bottom diaphragm case valve on top 15 Nuts and bolts 16 Set point springs 17 Set point adjuster 18 Nut 19 Diaphragm plate 20 Control line 22 Diaphragm stem 23 Top diaphragm case valve on top 24 Outer spring plate 25 Axial needle bearing with washe...

Page 18: ...alve 2 Strainer 3 Pressure gauge flow pipe 4 Differential pressure regulator 5 Pressure gauge return flow pipe 6 Shut off valve 7 Needle valve optional 8 Compensation chamber optional Fig 3 3 Installation example Type 42 20 and Type 42 25 The control lines to be installed on site are represented by a dashed line Bypass and shut off valves We recommend installing a shut off valve 1 and 6 both upstr...

Page 19: ...size DN 15 to 250 Pressure ratings from PN 16 to 40 Note Strainers We recommend installing a SAMSON strainer 2 upstream of the valve It prevents solid particles in the process medium from damaging the regulator Î Do not use the strainer to permanently filter the process medium Î Select a strainer mesh size suitable for the process medium Any impurities carried along by the process medium may impai...

Page 20: ...50 C 660 F with extension piece 2 Steam version only with valves balanced by a bellows 3 DN 125 to 250 4 5 to 10 bar on request Terms for control valve sizing according to IEC 60534 Parts 2 1 and 2 2 FL 0 95 XT 0 75 The regulator is closed when relieved of pressure The valve opens when the differen tial pressure rises Leakage class The metal seated regulator has the leakage class I according to IE...

Page 21: ...JL 250 Spheroidal graphite iron EN GJS 400 18 LT Seat 1 4408 Plug CW617N Diaphragm case 1 0619 Pressure balancing Diaphragm plate 1 4301 EPDM balancing diaphragm max 150 C Valve size DN 125 to 250 Pressure rating PN 16 PN 16 and 25 PN 16 25 40 Valve body Cast iron EN GJL 250 Sph graphite iron EN GJS 400 18 LT Cast steel 1 0619 Cast stainless steel 1 4408 Seat CC499K 3 Plug CC499K 3 With EPDM or FK...

Page 22: ...ifferential pressure p 25 bar 20 bar 16 bar 12 bar xFZ value 0 65 0 6 0 55 0 45 0 4 0 35 0 3 Type 2422 Valve Balanced by a diaphragm Valve size DN 65 80 100 125 150 200 250 Valve travel 15 mm 35 mm KVS coefficient 50 80 125 250 390 650 800 Max permissible differential pressure p 10 bar 12 bar 10 bar xFZ value 0 4 0 35 0 3 Type 2422 Valve Unbalanced Valve size DN 15 20 25 32 40 50 Valve travel 10 m...

Page 23: ... Height H 5 6 625 700 755 990 1120 1260 Actuator ØD 285 mm A 320 cm 1 ØD 390 mm A 640 cm Weight 3 in kg 21 21 5 22 5 29 29 5 32 46 51 65 135 185 425 485 0 1 to 0 6 bar Height H 5 6 625 700 755 990 1120 1260 Actuator ØD 225 mm A 160 cm 2 ØD 285 mm A 320 cm 1 ØD 390 mm A 640 cm Weight 3 in kg 16 16 5 17 5 24 24 5 27 46 51 65 135 185 425 485 0 2 to 1 bar Height H 5 6 625 700 755 990 1120 1260 Actuato...

Page 24: ...70 mm A 80 cm Weight 3 in kg 16 16 5 17 5 24 24 5 27 42 47 61 1 Optionally with 640 cm actuator 2 Optionally with 320 cm actuator 3 The weight applies to the version with the material specifications EN GJL 250 Add 10 for all other materials 4 DN 125 to 250 4 5 to 10 bar on request 5 Minimum clearance required to remove the actuator 100 mm With extension piece 140 mm 6 Actuators with metal cover H ...

Page 25: ...A 640 cm Weight kg 42 47 55 75 95 250 270 0 1 to 0 6 bar Height H 3 4 590 610 815 840 910 Actuator ØD 285 mm A 320 cm 1 ØD 390 mm A 640 cm Weight kg 42 47 55 75 95 250 270 0 2 to 1 bar Height H 3 4 590 610 765 790 860 Actuator ØD 225 mm A 160 cm 2 ØD 285 mm A 320 cm 1 Weight kg 42 47 55 75 95 250 270 0 5 to 1 5 bar Height H 3 4 590 610 765 790 860 Actuator ØD 225 mm A 160 cm 2 ØD 285 mm A 320 cm 1...

Page 26: ...hout process medium Actuator area in cm 640 320 160 80 40 Weight 1 in kg 45 23 12 1 Weight of Type 2425 Actuator with two diaphragms on request Dimensional drawings Type 42 25 Type 2422 Valve balanced by a bellows with Type 2425 Actuator Type 2422 Valve balanced by a diaphragm with Type 2425 Actuator ØD H1 H2 L H H2 H L H1 ...

Page 27: ...imensional drawings Type 42 20 Type 2422 Valve balanced by a bellows with Type 2420 Actuator Type 2422 Valve balanced by a diaphragm with Type 2420 Actuator L H2 H1 H ØD H2 H L H1 Fig 3 4 Dimensions Type 2422 Valve with Type 2420 and Type 2425 Actuators ...

Page 28: ...07 EN Design and principle of operation Dimensional drawings Extension piece Actuator with two diaphragms Metal cover H6 H7 Ø D H Fig 3 5 Dimensions of extension piece actuator with two diaphragms and metal cover ...

Page 29: ...to be lifted and transported in order to select the appropriate lifting equipment and lifting accessories Refer to the transport documents and the De sign and principle of operation section 4 2 Removing the packaging from the regulator The components valve actuator and if ap plicable accessories of the regulator are delivered separately Proceed as follows to lift and install the valve Î Do not ope...

Page 30: ...sign and principle of op eration section for the weights of the regulator and actuator DANGER WARNING Risk of personal injury due to the regulator tipping Î Observe the regulator s center of gravity Î Secure the regulator against tipping over or turning Risk of lifting equipment tipping over and risk of damage to lifting accessories due to exceeding the rated lifting capacity Î Only use approved l...

Page 31: ...ig 4 1 Î Secure slings against slipping Î Make sure the slings can be removed af ter installation Î Prevent the regulator from tilting or tip ping Î Do not leave loads suspended when in terrupting work for longer periods of time Î Make sure that the axis of the pipeline is always horizontal during lifting and the axis of the plug stem is always vertical Lifting 1 Attach one sling to the flange of ...

Page 32: ...ngs Repair any damage immediately Î Protect the regulator against moisture and dirt Store it at a relative humidity of less than 75 In damp spaces prevent condensation If necessary use a drying agent or heating Î Make sure that the ambient air is free of acids or other corrosive media Î The permissible storage temperature of standard regulators is 20 to 65 C Î Do not place any objects on the regul...

Page 33: ...tions or state of the medium process deviate Î Install the regulator free of stress and with the least amount of vibrations as possible Read information under Mounting position and Support or suspension in this section Î For media with a tendency to conden sate an automatic drainage must be in stalled Install the pipeline with a slight downward slope on both sides of the regulator to prevent conde...

Page 34: ...ines we recommend also installing a needle valve in the control line in addition to the standard SAMSON screw joint with restriction The standard SAMSON screw joint with restriction is located in the compression type fitting at the connection of the diaphragm actuator see Fig 5 2 NOTICE Tip Standard mounting position suspended Balanced by a bellows or diaphragm All versions Air and gases up to 80 ...

Page 35: ...he chamber This mounting position must be adhered to otherwise the safe functioning of the regula tor cannot be guaranteed see Fig 5 2 Control line connection Compensation chamber Needle valve Fig 5 2 Regulator for medium temperatures above 150 C or for steam up to 220 C Correct Connection at the side optimal Incorrect Connection at the top incorrect position Incorrect Connection at the bottom inc...

Page 36: ...al pump P1 P2 P1 P2 4 2 7 1 6 5 3 8 1 Shut off valve 2 Strainer 3 Pressure gauge flow pipe 4 Differential pressure regulator 5 Pressure gauge return flow pipe 6 Shut off valve 7 Needle valve optional 8 Compensation chamber optional Fig 5 4 Installation example Type 42 20 and Type 42 25 The control lines to be installed on site are represented by a dashed line match the plant conditions size and pr...

Page 37: ...e regulator Danger due to suspended loads falling Î Stay clear of suspended or moving loads Î Close off and secure the transport paths DANGER Risk of injury due to incorrect lifting without the use of lifting equipment Lifting the regulator without the use of lifting equipment may lead to injuries back injury in particular depending on the weight of the regulator and or actuator Î Observe the guid...

Page 38: ...sure that the correct flange gaskets are used 5 Bolt the pipe to the valve free of stress 6 Mount the actuator Fasten the actuator on the valve by tight ening the coupling nut 11 while ob serving the alignment of the control line connections Observe the specified tight NOTICE Risk of lifting equipment tipping over and risk of damage to lifting accessories due to exceeding the rated lifting capacit...

Page 39: ...ocess medium from all the plant sections concerned as well as the valve DANGER Risk of personal injury due to pressurized components and process medium being dis charged Incorrect opening of pressure equipment or mounting parts may lead to the process me dium escaping to the atmosphere Î Do not loosen the control line while the valve is pressurized Î Do not start up the regulator until all parts h...

Page 40: ... a sudden pres sure increase Slowly open the shut off valves Pressure test with mounted diaphragm ac tuator During the pressure test make sure the fol lowing conditions are met Î All required control lines are connected to the actuator and are not shut off Î Do not allow the pressure to exceed the 1 5 times the pressure rating of the valve body Î Do not apply a pressure higher than the maximum spe...

Page 41: ...5 Î Seal off the valve using a coupling nut 0250 1037 with seal 0340 1962 WARNING Fig 5 5 Medium escaping when an actuator is not mounted on the valve 5 4 3 Filling the plant Open the shut off valves slowly over a time period of several minutes preferably starting from the upstream pressure side to fill the plant all consumers and control lines are open Î Make sure that the pressure rises simulta ...

Page 42: ...mmend first filling the plant and carefully rinsing it The regulator must not yet be insulated at this stage 1 Start up the plant and adjust the set point see the Start up section 2 Shut down the plant again and let it heat up until the condensation water has dried off 3 Insulate the regulator and pipes convey ing the process medium using insulation material with a water vapor barrier Use a stable...

Page 43: ...ions WARNING WARNING WARNING Î Wear hearing protection when working near the valve Follow the instructions given by the plant operator Before start up or putting the device back in to service make sure the following condi tions are met The regulator is properly installed into the pipeline see the Installation sec tion The leak and function tests have been completed successfully see the Testing the...

Page 44: ...g from the downstream side to avoid steam hammering 4 Make sure that the pressure rises simulta neously upstream and downstream of the WARNING regulator to avoid damaging the balanc ing bellows or diaphragm Regulation of liquids Î For liquid medium temperatures above 150 C first fill the compensation cham ber with the process medium Proceed as follows 1 Unscrew filler plug from the compensa tion c...

Page 45: ...ve been mounted WARNING WARNING Risk of hearing loss or deafness due to loud noise Noise emission e g cavitation may occur during operation caused by the process me dium and the operating conditions Î Wear hearing protection when working near the valve Follow the instructions given by the plant operator 7 1 Adjusting the differential pressure set point Î The control and shut off valves as well as ...

Page 46: ...losing the consumer valve to check the adjusted differential pressure at the regu lator Correct it if necessary Installation in the bypass of a centrifugal pump Installation in the short circuit pipe of a house substation 4 2 7 6 1 3 5 8 8 Centrifugal pump P1 P2 P1 P2 4 2 7 1 6 5 3 8 1 Shut off valve 2 Strainer 3 Pressure gauge flow pipe 4 Differential pressure regulator 5 Pressure gauge return fl...

Page 47: ...les Service Pressure tapped at the wrong place ÎReconnect control lines at a different place Do not tap pressure at pipe bends or necks Defective operating diaphragm ÎReplace damaged diaphragm Differential pressure set point not reached Regulator installed against the flow ÎInstall the regulator so that the direction of flow matches the direction indicated by the arrow on the body Regulator or KVS...

Page 48: ...ller restriction Slow control response Restriction in the screw joint of the actuator dirty or too small ÎDo not close the screw joint with restriction completely ÎClean screw joint or install larger screw joint Dirt in the control line ÎClean the control line Jerky control response Increased friction e g due to foreign particles between seat and plug ÎRemove foreign particles ÎReplace damaged par...

Page 49: ...to account SAMSON s After sales Service can support you in drawing up an inspection and test plan for your plant Tip 8 2 Emergency action Plant operators are responsible for emergen cy action to be taken in the plant We recommend removing the regulator from the pipeline before repairing it In the event of a regulator malfunction 1 Close the shut off valves upstream and downstream of the regulator ...

Page 50: ...8 4 EB 3007 EN ...

Page 51: ...e regulator s center of gravity Î Secure the regulator against tipping over or turning DANGER WARNING Risk of burn injuries due to hot or cold components and pipeline Regulator components and the pipeline may become very hot or cold Risk of burn inju ries Î Allow components and pipelines to cool down or warm up to the ambient tem perature Î Wear protective clothing and safety gloves Risk of person...

Page 52: ...ssive tighten ing torques lead to parts wearing out more quickly Parts that are too loose may cause leakage Î Observe the specified tightening torques see Tightening torques in Annex WARNING NOTICE Risk of regulator damage due to the use of unsuitable lubricants Î Only use lubricants approved by SAM SON see Lubricants in Annex Risk of regulator damage due to the use of unsuitable tools Î Only use ...

Page 53: ...0 with balancing bellows 1 Valve body 2 Seat 3 Plug 4 Plug stem 5 Balancing bellows 5 1 Balancing diaphragm DN 65 to 250 11 Coupling nut 12 Diaphragm stem 13 Operating diaphragm 14 Bottom diaphragm case valve on top 15 Nuts and bolts 16 Set point springs 17 Set point adjuster 18 Nut 19 Diaphragm plate 20 Control line 22 Diaphragm stem 23 Top diaphragm case valve on top 24 Outer spring plate 25 Axi...

Page 54: ... Type 42 20 Type 2422 Valve balanced by a diaphragm DN 65 to 250 _ P1 P2 2 1 3 4 5 1 _ 16 20 15 23 13 22 14 18 19 20 11 Type 2425 Actuator Type 2420 Actuator Fig 9 2 Functional diagram for regulators DN 65 to 250 with balancing diaphragm ...

Page 55: ...on is completed Replace the actuator see section 9 4 Replace the seat and plug see sec tion 9 5 Replace the actuator s operating dia phragm see section 9 6 Tip 9 2 Installing the regulator after service work Î Put the regulator back into operation see the Start up section Make sure the re quirements and conditions for start up or putting the valve back into operation are met 9 3 Service work Î Bef...

Page 56: ... After sales Service Further information is available in Annex After sales service 9 6 Replacing the actuator s operating diaphragm The associated order number is written on the actual operating diaphragm 9 6 1 Type 2420 Actuator Î See Fig 9 1 and Fig 9 2 Removing the operating diaphragm 1 Put the regulator out of operation see the Decommissioning section 2 Unscrew the control lines 20 3 Unscrew t...

Page 57: ... while holding the bottom diaphragm stem 22 or opposite nut stationary using a suitable tool 10 Lift off the diaphragm plate 19 11 Take off the operating diaphragm 13 WARNING WARNING Mounting the operating diaphragm 1 Place the new operating diaphragm on the diaphragm stem 22 ensuring the tab of the diaphragm is in the right di rection 2 Place on the diaphragm plate 19 3 Screw the nut 18 while hol...

Page 58: ... 24 26 and needle bearing with washer 25 7 Screw on the set point adjuster 17 8 Place the diaphragm actuator on the valve and fasten tight the coupling nut 11 Observe the specified tightening torques see Tightening torques in An nex 9 Screw on the control lines 20 Observe the specified tightening torques see Tightening torques in Annex 10 Put the regulator back into operation see the Start up sect...

Page 59: ... perature Î Wear protective clothing and safety gloves DANGER WARNING Risk of personal injury due to pressurized components and process medium being discharged Incorrect opening of pressure equipment or mounting parts may lead to the process me dium escaping to the atmosphere Î Do not loosen the control line while the valve is pressurized Î Do not start up the regulator until all parts have been m...

Page 60: ...o personal in jury e g chemical burns Î Wear protective clothing safety gloves and eye protection To decommission the regulator for service work or disassembly proceed as follows 1 Close the shut off valve 1 on the up stream side of the regulator 2 Close the shut off valve 6 on the down stream side of the regulator 3 Depressurize the plant 4 Completely drain the pipelines and valve 5 If necessary ...

Page 61: ...e working on the regulator residual process medium can escape and depending on its properties may lead to personal in jury e g chemical burns Î Wear protective clothing safety gloves and eye protection Before removing the valve make sure the fol lowing conditions are met The regulator is put out of operation see the Decommissioning section WARNING WARNING WARNING 11 1 Removing the regulator from t...

Page 62: ...11 2 EB 3007 EN ...

Page 63: ...2 Send an e mail u retouren samsongroup com to regis ter the return shipment including the fol lowing information Type Material number Item numbers of accessories Original order Completed Declaration on Contamination which can be downloaded from our website at u www samsongroup com Service Support After sales Service NOTICE NOTICE After checking your registration we will send you a return merchand...

Page 64: ...12 2 EB 3007 EN ...

Page 65: ...ion al refuse regulations Î Do not dispose of components lubricants and hazardous substances together with your other household waste We 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 On request we can appoint a service pro vider to dismantle and recycle the product as part of a...

Page 66: ...13 2 EB 3007 EN ...

Page 67: ... with Pressure Equipment Directive 2014 68 EU on page 14 2 ff EU declaration of conformity in compli ance with Machinery Directive 2006 42 EC for Type 42 20 and Type 42 25 Regulators on page 14 4 ff Declaration of incorporation in compli ance with Machinery Directive 2006 42 EC for the Type 2422 Valve and Type 2420 and Type 2425 Actuator on page 14 6 ff ...

Page 68: ...150 ohne without 1 A 2 3 H Class 300 ohne without 1 H Class 600 und Class 900 ohne without 1 H 1 Das auf dem Stellgerät aufgebrachte CE Zeichen hat keine Gültigkeit im Sinne der Druckgeräterichtlinie The CE marking affixed to the control valve is not valid in the sense oft the Pressure Equipment Directive 2 Das auf dem Stellgerät aufgebrachte CE Zeichen gilt ohne Bezeichnung der benannten Stelle K...

Page 69: ...0 und PN 160 ohne without 1 H Class 150 ohne without 1 A 2 3 H Class 300 ohne without 1 A 2 3 H Class 600 und Class 900 ohne without 1 H 1 Das auf dem Stellgerät aufgebrachte CE Zeichen hat keine Gültigkeit im Sinne der Druckgeräterichtlinie The CE marking affixed to the control valve is not valid in the sense of the Pressure Equipment Directive 2 Das auf dem Stellgerät aufgebrachte CE Zeichen gil...

Page 70: ...s EB 3007 Referenced technical standards and or specifications VCI VDMA VGB Leitfaden Maschinenrichtlinie 2006 42 EG Bedeutung für Armaturen Mai 2018 German only VCI VDMA VGB Zusatzdokument zum Leitfaden Maschinenrichtlinie 2006 42 EG Bedeutung für Armaturen vom Mai 2018 German only based on DIN EN ISO 12100 2011 03 Comment Information on residual risks of the machinery can be found in the mountin...

Page 71: ...ions EB 3007 Referenced technical standards and or specifications VCI VDMA VGB Leitfaden Maschinenrichtlinie 2006 42 EG Bedeutung für Armaturen Mai 2018 German only VCI VDMA VGB Zusatzdokument zum Leitfaden Maschinenrichtlinie 2006 42 EG Bedeutung für Armaturen vom Mai 2018 German only based on DIN EN ISO 12100 2011 03 Comment Information on residual risks of the machinery can be found in the moun...

Page 72: ...21 2123 Type 2404 2 Excess Pressure Valve with pilot valve Mounting and Operating Instructions EB 2540 Type 2422 2424 Pressure Reducing Valve Mounting and Operating Instructions EB 2547 Type 2422 2425 Excess Pressure Valve Mounting and Operating Instructions EB 2549 Type 2333 Pressure Reducing Valve with pilot valve Mounting and Operating Instructions EB 2552 1 Type 2335 Excess Pressure Valve with...

Page 73: ...he process medium and operating pressure in the valve as well as by the signal pressure and moving parts The permissible limits of application and mounting instructions for the products are specified in the associated data sheets as well as the mounting and operating instructions the documents are available in electronic form on the Internet at www samsongroup com For product descriptions refer to...

Page 74: ... in the valve as well as by the signal pressure and moving parts The permissible limits of application and mounting instructions for the products are specified in the associated data sheets as well as the mounting and operating instructions the documents are available in electronic form on the Internet at www samsongroup com For product descriptions refer to Type 42 25 Differential Pressure Regula...

Page 75: ...0 to 640 cm 40 Control line connection 20 40 to 640 cm 22 15 2 Lubricant SAMSON s After sales Service can support you concerning lubricants and sealants ap proved by SAMSON 15 3 Tools SAMSON s After sales Service can support you concerning tools approved by SAMSON 15 4 Accessories Control line kits needle valves condensation chambers and compression type screw fit tings can be supplied as required...

Page 76: ...eat 5 Plug 12 Washer 13 Bolt 14 Nut 18 Guide bushing 19 Guide tube 36 Nipple 97 Flange 109 Nameplate 500 Bellows 502 Balancing screw 506 Connecting nipple 507 Guide cap 525 Compression spring 558 Washer 596 Retaining washer 558 525 506 36 Fig 15 1 Type 2422 Valve DN 65 to 250 Balanced by a diaphragm ...

Page 77: ...EB 3007 EN 15 3 Annex 109 507 525 97 500 2 1 4 502 596 5 19 18 12 14 13 Fig 15 2 Type 2422 Valve DN 15 to 250 Balanced by a bellows ...

Page 78: ...ase assembly 3 Diaphragm stem 6 Coupling nut 11 Spring plate 13 Diaphragm 20 Bolt 22 Nut 26 Adhesive label 27 Adhesive label 28 31 Compression spring 32 Nameplate 37 Screw joint with restriction 6 26 22 20 27 28 31 13 11 1 32 37 2 3 Fig 15 3 Type 2420 Diaphragm Actuator DN 15 to 250 ...

Page 79: ... nut 13 Diaphragm 17 Bolt 18 Nut 20 Adhesive label 21 Adhesive label 22 Nameplate 25 Nut of set point adjuster 27 29 Set point springs 36 Outer spring plate 37 Screw joint with restriction 46 Axial needle bearing 49 Cap 51 Washer 57 Dowel pin 2 21 4 5 1 22 25 20 46 27 29 17 11 36 51 49 18 7 37 13 57 Fig 15 4 Type 2425 Diaphragm Actuator DN 15 to 250 ...

Page 80: ...entatives and service facilities world wide can be found on our website u www samsongroup com or in all SAMSON product catalogs Required specifications Please submit the following details Device type and valve size Valve balanced by a bellows or dia phragm Model number or material number Upstream and downstream pressure Temperature and process medium Min and max flow rate in m h Is a strainer inst...

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Page 84: ...2022 11 02 English 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 EB 3007 EN ...

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