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Summary of Contents for Samson 2334
- Page 1 EB 3210 EN Translation of original instructions Type 2334 Differential Pressure Regulator, balanced by a diaphragm, DN 400 (standard version) Type 2334 Universal Regulator with pilot valve Self-operated Regulators Edition March 2024...
- Page 2 WARNING Damage to health relating to the REACH regulation. If a SAMSON device contains a substance listed as a substance of very high concern on the candidate list of the REACH regulation, this is indicated on the SAMSON delivery note.
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Page 3: Table Of Contents
Contents General safety instructions ................4 Process medium and scope of application ............5 Transportation and storage ................5 Design and principle of operation ..............6 Minimum differential pressure for functioning ..........10 Installation ....................11 Notes on installation ..................11 Strainers .....................13 Shut-off valves .....................13 Pressure gauge ....................13 Bypass ......................13 Control line, compensation chamber and needle valve ........15 Operation ....................15... -
Page 4: General Safety Instructions
General safety instructions 1 General safety instructions − The device must be mounted, started up or serviced by fully trained and qualified personnel only; the accepted industry codes and practices are to be observed. Make sure employees or third parties are not exposed to any danger. -
Page 5: Process Medium And Scope Of Application
Process medium and scope of application 2 Process medium and scope of application Pilot-operated pressure, differential pressure, flow rate, temperature or combined regula- tors, optionally with additional electric actuator · Main valve in nominal sizes DN 65 to 400 · Pressure rating PN 16 to 40 · Flange end connections · For heating and cooling plants · Suitable for liquids from 5 to 150 °C, non-flammable gases up to 80 °C WARNING Risk of uncontrolled excess pressure in the plant. -
Page 6: Design And Principle Of Operation
Design and principle of operation 3 Design and principle of oper- valve, DN 300 and 400) or the instruments can be hooked up on site (DN 25, DN 40). ation The medium flows through the area released See Fig. 1 on page 7. between the plug and seat. It flows out of the valve at a downstream pressure p depen- The universal regulators consist of a large... - Page 7 Design and principle of operation Type 2422 Valve, DN 125 to 250, balanced by Type 2422 Valve, DN 65 to 100, balanced by a a bellows bellows, with Type 2420 Actuator Type 2423 Valve, DN 125 to 400, balanced by a diaphragm Fig. 1: Type 2334 Universal Regulator EB 3210 EN...
- Page 8 Design and principle of operation Type 2334 · Possible configurations The following schematic diagrams show the principle setup of a Type 2334 Universal Regula- tor and its possible functions. A maximum of three pilot valves can be installed in the bypass line. Main valve...
- Page 9 Flow and differential pressure regulators Type 2423 Type 45-1, Type 45-2 T 3124 | EB 3124 (installation in flow pipe) Type 45-1, Type 45-4 (installation in return flow pipe) Type 2423 Type 2334 with same T 3017 | EB 3017 function as Type 42- ≤ DN 250 T 3124 | EB 3124 in the flow Type 45-1, Type 45-2 pipe) (installation in flow pipe) Type 2423...
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Page 10: Minimum Differential Pressure For Functioning
Design and principle of operation Main valve Pilot valve Schematic diagram Refer to Data Sheet Temperature regulators Type 2422 On request Regulator with additional electric actuator, controlled by a binary signal Type 2422 On request 3.1 Minimum differential pressure for functioning To allow a pilot-operated regulator to function, a minimum differential pressure Δp must prevail in the plant. -
Page 11: Installation
− Protect the regulator from icing up when steam. controlling media that can freeze. If nec- essary, depressurize and drain the regu- Contact SAMSON to obtain the TV- lator and remove it from the pipeline SK 17041 documentation which contains while the plant is shut down. - Page 12 Installation Shut-off valve Pressure gauge (flow pipe) Pressure gauge (flow pipe) Strainer (filter) Main valve Pressure gauge (return flow pipe) Pilot valve Venturi nozzle 10 Strainer (bypass line) Upstream pressure Downstream pressure Fig. 2: Installation example Mounting orientation spring, it must must be protected by a sleeve to allow it to move.
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Page 13: Strainers
Installation 4.2 Strainers upstream pressure tapping point of the con- trol line. Install a strainer (e.g. SAMSON Type 1/ Differential pressure control: install a pres- Type 2) upstream of the regulator. sure gauge in the flow pipe and the return − Do not use the strainer to permanently flow pipe. - Page 14 Installation Correct Connection at the side – optimal Values for pressure reducing valve and Δp Connection at the top – incorrect position regulator in the flow pipe L Face-to-face dimension of the main valve Fig. 4: Installation Connection at the bottom – incorrect position Fig. 3: Control line connection EB 3210 EN...
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Page 15: Control Line, Compensation Chamber And Needle Valve
Operation 4.6 Control line, compensation 5 Operation chamber and needle valve 5.1 Start-up The control line must be provided on site as a 6 x 1 mm pipe (pilot valve with male thread connection) or as a 8 x 1 mm pipe Note (pilot valve with flanged connection). We Do not start up the regulator until all parts recommend to connect it at the side of the have been mounted (e.g. -
Page 16: Adjusting The Set Point
Operation 5.2 Adjusting the set point Î Open all the valves on the consumer side. Î Open the shut-off valves preferably start- 5.2.1 Pressure regulators and ing from the return flow pipe. differential pressure − Slowly open the valves in small steps regulators waiting a few minutes in between. -
Page 17: Flow Regulators
Operation − Turning it clockwise () closes the restric- Note tion; the flow rate drops. Turn the set point adjuster one turn only ini- − Turning it counterclockwise () opens the tially (possibly repeat) and wait until the restriction; the flow rate rises. plant reacts. - Page 18 This setting only affects the flow rate. 1. Load the set point spring of the Note Type 2424 Actuator until the flow rate The Type 2334 Universal Regulator must not reading on the heat meter indicates the be installed in its own separate control loop. required value.
- Page 19 Operation V ˚ V ˚ Table 2: Flow rate set point ranges for water /h ] /h ] ³ ³ Type 2423 · Balanced by a bellows · Flow rate set point ranges for water in m³/h DN50 DN25 Nominal size DN 65 DN 80 DN 100 DN 125...
- Page 20 Operation V ˚ V ˚ /h ] ³ /h ] ³ DN125 DN100 12 14 16 18 Turns of the set point adjuster (restriction) = 0.5 bar · ____ ∆p – – – – ∆p = 0.2 bar restriction restriction V ˚ /h ] V ˚ ³...
- Page 21 Operation ˚ V V ˚ [ m³/h ] [ m³/h ] DN 150 DN 250 DN 200 DN 125 0 2 4 6 8 10 12 14 16 18 0 2 4 6 8 10 12 14 16 18 20 = 0.5 bar · ...
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Page 22: Combined Regulators
Cleaning and maintenance 5.2.3 Combined regulators 5.3 Decommissioning Close first the shut-off valve on the upstream Type 2423 as main valve side of the valve and then on the down- If several functions are to be adjusted, they stream side of the valve. must not affect each other during the set point adjustment. -
Page 23: After-Sales Service
SAMSON's After-sales Service for support. not close properly anymore when the seat is damaged. The addresses of SAMSON AG, its subsid- iaries, representatives and service facilities To repair the pilot valve, read the operating worldwide can be found on the SAMSON instructions for the corresponding regulator website (u www.samsongroup.com), in all... -
Page 24: Nameplate
Nameplate 8 Nameplate Nameplate of main valve DIN version ANSI version ANSI Valve type Nominal size Model number Perm. differential pressure in psi Device index Perm. temperature in °F Order number or date 10 Body material coefficient 11 C coefficient (K x 1.17) Nominal size 12 Class (pressure rating) -
Page 25: Technical Data
Set point ranges in bar, continuously adjustable at Depending on the pilot valve the pilot valve Type … Pilot Valve Depending on the application Type 2334 · Basic version DN 15 DN 25 Type 2334 · Version with DN 25 DN 40 bypass line Type 2334 · With 320 cm²... - Page 26 Technical data Table 5: Permissible differential pressures Δp Type 2422 Valve · Balanced by a bellows Nominal size DN 65 DN 80 DN 100 DN 125 DN 150 DN 200 DN 250 Min. diff. pressure Δp in bar with 0.4 with 320 cm² – Type 2420 Actuator 0.2 with 640 cm² 1) Min.
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Page 27: Dimensions
Dimensions 10 Dimensions Type 2422 · Balanced by a bellows 520 685 2) ØD Optionally Type 2420 Actuator Minimum clearance required to remove the actuator: +100 mm ØD Type 2422 · Balanced by a diaphragm · With external orifice plate 3) 3) 1100 All dimensions in mm Also with external orifice plate as flow and differential pressure regulator Fig. 10: Dimensions · Type 2422 as main valve EB 3210 EN... - Page 28 Dimensions Type 2423 · Balanced by a bellows Type 2423 · Balanced by a diaphragm All dimensions in mm Fig. 11: Dimensions · Type 2423 as main valve EB 3210 EN...
- Page 29 Dimensions The example shows a main valve with two pilot valves mounted in the bypass line. The dimensions are intended as guidelines. In particular cases, the overall dimensions vary depending on the installed regulators and the conditions on site. The minimum distance of the bypass line connections to the main valve depend on the length L of the main valve, the nominal size DN of the main line and the direction of flow.
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Page 30: Device Versions
DN 125 to 250) Bypass line DN 25/40 with: 1) Type 44-2/44-3 as pilot valve Venturi nozzle Type 1 N and Type 1 NI Strainers DN 65 to 100: bypass line DN 25 only Fig. 13: Type 2334 Pressure Reducing Valve (balanced by a bellows) with Type 44-2/44-3 as pilot valve EB 3210 EN... - Page 31 Regulator consisting of: Type 2422 as main valve balanced by a bellows Bypass DN 25/40 with: Type 41-23 as pilot valve Venturi nozzle Type 1 N and Type 1 NI Strainers Fig. 14: Type 2334 Pressure Reducing Valve (balanced by a bellows) with Type 41-23 as pilot valve EB 3210 EN...
- Page 32 Type 45-2 Differential Pressure Regulator as pilot valve (flow pipe) Type 45-4 Differential Pressure Regulator as pilot valve (return flow pipe) Venturi nozzle Type 1 N and Type 1 NI Strainers Fig. 15: Type 2334 Differential Pressure and Flow Regulator (balanced by a diaphragm), DN 125 to EB 3210 EN...
- Page 33 Type 2423 as main valve, balanced by a diaphragm Bypass DN 25/40 with: Type 45-1 Differential Pressure Regulator as pilot valve Venturi nozzle Type 1 N and Type 1 NI Strainers Fig. 16: Type 2334 Differential Pressure and Flow Regulator (balanced by a diaphragm), DN 125 to EB 3210 EN...
- Page 34 Type 45-2 Differential Pressure Regulator as pilot valve (installation in the flow pipe) Type 45-4 Differential Pressure Regulator as pilot valve (installation in the return flow pipe) Venturi nozzle Type 1 N and Type 1 NI Strainers Fig. 17: Type 2334 Differential Pressure and Flow Regulator (balanced by a bellows), DN 65 to 100 EB 3210 EN...
- Page 35 Type 45-1 Differential Pressure Regulator as pilot valve (flow rate) Type 45-2 Differential Pressure Regulator as pilot valve (flow pipe)/Type 45-4 (return flow pipe) Venturi nozzle Type 1 N and Type 1 NI Strainers Fig. 18: Type 2334 Differential Pressure and Flow Regulator (balanced by a diaphragm), DN 125 to EB 3210 EN...
- Page 36 Bypass line DN 40 with: Type 45-4 Differential Pressure Regulator as pilot valve Type 42-24 Differential Pressure Regulator as pilot valve Venturi nozzle Type 1 N and Type 1 NI Strainers Fig. 19: Type 2334 Differential Pressure and Flow Regulator, balanced by a diaphragm, with external orifice plate EB 3210 EN...
- Page 38 EB 3210 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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