Accessories for Differential Pressure and Flow Regulators

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Mildred O’Neal’
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1 Self-operated Regulators Accessories for Differential Pressure and Flow Regulators Compression fittings Needle valves Condensation chamber Orifice plates Welding neck flanges Control lines Application Accessories for Series 42 Differential Pressure and Flow Regulators Screw fittings Compression fittings Straight stud ends with parallel thread according to DIN 2353 used to connect control lines to the valve Threaded connection G ¼ for tubes with an outer diameter of 8, 10 or 12 mm Screw fittings with restrictions Pipe screw fitting with restriction to dampen vibrations in the control line Various cross-sections available depending on the volume of the diaphragm actuator Needle valve To shut off the control lines and also to dampen any vibrations. Body: Steel Female thread G ¼ (versions in stainless steel available on request) Condensation chamber Used to protect the operating diaphragm in the actuator against high temperatures Required for medium temperatures above 150 C Maximum permissible pressure: 40 bar (gauge). Chamber: Sheet steel S235JR (1.0037) Two assembled condensation chambers with mounting brackets form a cool-down battery. Control line connections: Two compression fittings for tubes with an outer diameter of 8 mm (special version: for tubes with an outer diameter of 10 or 12 mm). Orifice plate To create a differential pressure p Required when using a differential pressure regulator as a flow regulator Available in sizes DN 15 to 300 Material: Stainless steel The orifice bore diameter (d) is calculated using the technical data. The orifice plate is mounted between the inlet flange of the differential pressure regulator and an additional welding neck flange (see picture on the right.) Fig. 1 Compression fittings Fig. 3 Needle valve d Fig. 4 Orifice plate 127 Fig. 2 Condensation chamber 105 Fig. 5 Welding neck flange with control line connection Welding neck flange To control the flow in combination with an orifice plate Nominal sizes DN 15 to 300 Nominal pressure PN 16, 25 and 40 Control line connection: compression fitting for tubes with an outer diameter of 8 mm For simultaneous measurement and indication of the flow, the use of an orifice plate (orifice flange) and a flow meter must be used. Dimensions according to DIN EN , flange type 11 Fig. 6 Welding neck flange with orifice plate (example) Associated Information Sheet T 3000 EN Edition August 2012 Data Sheet T 3095 EN

control lines to the valve Threaded connection G ¼ for tubes with an outer diameter of 8, 10 or 12 mm Screw fittings with restrictions Pipe screw fitting with restriction to dampen vibrations in the

2 Double adapter To connect a second control thermostat or a second actuator. The double adapter is mounted between the bellows housing and the actuator. It is used for control by a second variable, e.g. to control or limit the temperature (see Data Sheet T 3019 EN for details about the double adapter). The overall height of the regulator increases correspondingly. Double adapter Bellows housing Actuator Pre-assembled control lines with accessories To transfer pressure to the diaphragm of the regulator. Fig. 7 Double adapter We recommend using a stainless steel tube 8 x 1 mm as a control line. Optionally, various regulator types are available with control lines needle valves, and condensation chambers already assembled to the regulators as illustrated in Fig. 8 Control lines with accessories (arrangement according to drawing x ). The designation in parentheses (x) applies to valves balanced by a diaphragm. Differential pressure regulators for installation in the return flow pipe Type 2421/2422 Valves 1 (40) 2 (41) 3 Low-pressure control line Low-pressure control line and one needle valve Low-pressure control line and lower highpressure control line, two needle valves and a cool-down battery Fig. 8.1 Pre-assembled control lines for Type A and Type A for installation in the return flow pipe Differential pressure regulators for installation in the flow pipe Type 2421/2422 Valves 4 5 (43) (44) High-pressure control line High-pressure control line and High-pressure control line, one needle valve needle valve, cool-down tank Note: The distance piece is no longer needed for regulators manufactured after July Fig. 8.2 Pre-assembled control lines for Type 42-14, Type 42-18, Type B, Type B for installation in the flow pipe Fig. 8 Control lines with accessories Low-pressure and lower high-pressure control lines, two needle valves, cool-down battery 2 T 3095 EN

Double adapter Bellows housing Actuator Pre-assembled control lines with accessories To transfer pressure to the diaphragm of the regulator. Fig.

3 Differential pressure regulators (opening) Types 2421/2422 Valves (47.2) (46) Low-pressure and high-pressure control lines High-pressure control line High-pressure control line, cool-down tank 9 (47.1) Low-pressure and high-pressure control lines, two needle valves 10 Lower low-pressure control line and high-pressure control line, two needle valves and cool-down battery 11 Low-pressure and high-pressure control lines, two needle valves and cool-down battery Fig. 8.3 Pre-assembled control lines for Type 42-10, Type 42-15, Type 42-20, Type Type 2423 and Type 2423 E Valves (48) Fig. 8.4 Pre-assembled control lines for Type Fig. 8 Control lines with accessories High-pressure control line (49) High-pressure control line, needle valve High-pressure control line and needle valve with cool-down tank and mounting bracket High-pressure control line, cool-down tank with mounting bracket 3 T 3095 EN

1) Low-pressure and high-pressure control lines, two needle valves 10 Lower low-pressure control line and high-pressure control line, two needle valves and cool-down battery 11 Low-pressure and

4 Type 2423 and Type 2423 E Valves Differential pressure and flow regulators/flow limiters for installation in the return flow pipe (48.1) Connecting piece with external control line connection, low-pressure control line and lower high-pressure control line, two needle valves, cool-down tank with mounting bracket Connecting piece with external control line connection and low-pressure control line Fig. 8.5 Pre-assembled control lines for Type and Type for installation in the return flow pipe 17 (50) 18 (51) 18.1 Low-pressure/high-pressure control line Low-pressure/high-pressure control line, lower high-pressure control line and needle valve Low-pressure/high-pressure control line, lower high-pressure control line, needle valve and cool-down tank with mounting bracket 19 Low-pressure/high-pressure control line, lower high-pressure control line, needle valve and cool-down battery Fig. 8.6 Pre-assembled control lines for Type for installation in the return flow pipe Fig. 8 Control lines and accessories 4 T 3095 EN

with external control line connection and low-pressure control line Fig. 8.5 Pre-assembled control lines for Type 42-34 and Type 42-38 for installation in the return flow pipe 17 (50) 18 (51) 18.

5 Type 2423 and Type 2423 E Valves Differential pressure and flow regulators for installation in the flow pipe 20 (52) (53) High-pressure control lines High-pressure control line, lower lowpressure control line, two needle valves, cool-down battery and cool-down tank Fig. 8.7 Pre-assembled control lines for Type for installation in the flow pipe High-pressure control line, lower low-pressure control line and two needle valves Flow regulators/flow limiters with double adapter Adapter with external control line connection, low-pressure control line and high-pressure control line Adapter with external control line connection, low-pressure and high-pressure control lines, cool-down tank with bracket Adapter with external control line connection and low-pressure control line, high-pressure control line, one needle valve, cool-down tank with bracket Fig. 8.8 Pre-assembled control lines for Type DoT and Type DoT 26 Fig. 8.9 Pre-assembled control lines for Type DoT and Type DoT for installation in the return flow pipe Fig. 8 Control lines and accessories Adapter with external control line connection, low-pressure control line 5 T 3095 EN

7 Pre-assembled control lines for Type 42-39 for installation in the flow pipe High-pressure control line, lower low-pressure control line and two needle valves Flow regulators/flow limiters with

6 Type 2422 Valve Temperature and differential pressure regulators for installation in the flow pipe and return flow pipe Type B DoT, installation in the flow pipe, high-pressure control line and needle valve Type A DoT, installation in the return flow pipe, low-pressure control line and needle valve Fig Pre-assembled control lines for Type A DoT and Type B DoT Fig. 8 Control lines and accessories 6 T 3095 EN

Type 42-24 A DoT, installation in the return flow pipe, low-pressure control line and needle valve Fig. 8.

7 Ordering control lines with accessories Example 1: Type A Regulator for temperatures up to 150 C, control line with needle valve, Type 2422 Valve for installation in the return flow pipe, according to Figure 8.1 Low-pressure control line and needle valve according to drawing arrangement Low-pressure control line and one needle valve Example 2: Type Regulator for temperatures up to 150 C, control line without needle valve, Type 2423 Valve for installation in the return flow pipe, according to Figure 8.6 Low-pressure/high-pressure control line according to drawing arrangement Control line for high pressure and low pressure 17 Fig. 9 Ordering examples Ordering text Single accessories Compression fitting G ¼ Screw fitting with restriction G ¼ Needle valve G ¼ Steel Condensation chamber with compression fitting Double adapter for regulator..., DN Orifice plate for DN Welding neck flange with compression fitting G ¼ with control line connection DN..., PN Pre-assembled control lines with accessories (mounting unit) for Type Regulator, DN..., PN..., according to drawing x (see Fig. 8 Control lines with accessories) For installation in the flow pipe/return flow pipe 7 T 3095 EN

1 Low-pressure control line and needle valve according to drawing 1120-1180- arrangement 2 1120-1180-2 2 Low-pressure control line and one needle valve Example 2: Type 42-37 Regulator for

8 Specifications subject to change without notice SAMSON AG MESS- UND REGELTECHNIK Weismüllerstraße Frankfurt am Main Germany Phone: Fax: Internet: T 3095 EN

Frankfurt am Main Germany Phone: 49 69 4009-0 Fax: 49

Self-operated Pressure Regulators Universal Pressure Reducing Valve Type 41-23

Self-operated Pressure Regulators Universal Pressure Reducing Valve Type 41-23 Application Pressure regulators for set points from 5 mbar to 28 bar Valves in nominal sizes DN 15 to 100 Nominal pressures