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Self-operated Temperature Regulators · Type 4 Temperature Regulator

Self-operated Temperature Regulators · Type 4 Temperature Regulator
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Self-operated Temperature Regulators · Type 4 Temperature Regulator - 1

T 2121 EN Self-operated Temperature Regulators · Type 4 Temperature Regulator With balanced single-seated globe valve Application Temperature regulators for heating installations · Control thermostats for set points from –10 to +250 °C · Nominal sizes DN 15 to 150 · Nominal pressure PN 16 to 40 · Suitable for temperatures up to 350 °C The valve closes when the temperature rises. The regulators consist of a balanced globe valve with flanged connections and a control thermostat with temperature sensor, set point adjuster with excess temperature protection, capillary tube and operating element. Special features •• Low-maintenance proportional regulators requiring no auxiliary energy •• Wide set point range and convenient set point adjustment with a dial •• Single-seated valve with a plug balanced by a balancing diaphragm or stainless steel bellows •• Valve body optionally available in cast iron, spheroidal graphite iron, cast steel or cast stainless steel •• Versions with double adapter and manual adjuster for temperature limiters or attachment of a second control thermostat. See u T 2036 for details. Versions Type 4 Temperature Regulator · Type 2422 Valve with flanged connections · Balanced by a bellows (DN 15 to 150) · Balanced by a diaphragm (DN 65 to 100) · PN 16 to 40 Type 2231 to 2235 Control Thermostat · Further details on control thermostats in Information Sheet u T 2010. –– Type 2422/2231 (Fig. 1) · With Type 2422 Valve and Type 2231 Control Thermostat · Suitable for liquids · Set point adjustment at the sensor · Set points from –10 to +150 °C –– Type 2422/2232 (Fig. 3) · With Type 2422 Valve and Type 2232 Control Thermostat · Suitable for liquids and steam · Separate set point adjustment · Set points from –10 to +250 °C –– Type 2422/2233 (Fig. 2) · With Type 2422 Valve and Type 2233 Control Thermostat · Suitable for liquids, air and other gases · Set point adjustment at the sensor · Set points from –10 to +150 °C –– Type 2422/2234 · With Type 2422 Valve and Type 2234 Control Thermostat · Suitable for liquids, steam, air and other gases · Separate set point adjustment · Set points from –10 to +250 °C Fig. 1: Type 4 with Type 2231 Control Thermostat (top left) Fig. 2: Type 4 with Type 2233 Control Thermostat (top right) Fig. 3: Type 4 Temperature Regulator with Type 2232 Control Thermostat, version with separate set point adjustment (bottom center) –– Type 2422/2235 · With Type 2422 Valve and Type 2235 Control Thermostat · Installation in air-heated storerooms as well as drying, climatic and heating cabinets · Separate set point adjustment and a sensor tube to be installed on site · Set points from –10 to +250 °C SAMSON AKTIENGESELLSCHAFT · Weismüll

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Self-operated Temperature Regulators · Type 4 Temperature Regulator - 2

Special versions –– 10 or 15 m capillary tube lengths –– Sensor of CrNiMo steel –– Capillary tube made of CrNiMo steel or plastic-coated copper –– Valve entirely of stainless steel –– Reduced KVS coefficient –– Valve with flow divider for noise reduction with steam and non-flammable gases Principle of operation (see Fig. 4) The regulators operate according to the liquid expansion principle. The temperature sensor (12), capillary tube (9) and operating element (7) are filled with an expansion liquid. The temperature-dependent change in volume of this liquid causes the operating bellows in...

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Self-operated Temperature Regulators · Type 4 Temperature Regulator - 3

Flow rate diagram for water The following versions are available: –– Temperature regulators (TR) with a Type 2231, 2232, 2233, 2234 or 2235 Thermostat and a Type 2422 Valve in DN 15 to 150, for which the maximum operating pressure must not exceed the maximum permissible differential pressure Δp specified in the technical data. Sensors without thermowell: applicable up to 40 bar Sensors with thermowell: only use SAMSON G 1 version made of bronze, steel or stainless steel up to 40 bar, copper up to 16 bar. –– Thermowell for flammable gases typetested by DVGW, G 1 threaded connection, PN 100...

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Self-operated Temperature Regulators · Type 4 Temperature Regulator - 4

Table 2: Technical data ■ Valves ■ All pressures in bar (gauge) Type 2422 Valve ■ Balanced by a bellows ■ Balanced by a diaphragm 1) DN 15, 25, 40 and 50 only 2) Optionally with soft seal with standard Kys coefficients 3) Special version 1.4409 4) Soft-seated plug with EPDM ring for temperatures up to 150 °C 5) PN 16 only

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Self-operated Temperature Regulators · Type 4 Temperature Regulator - 5

Table 4: Materials • Material numbers according to DIN EN

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Self-operated Temperature Regulators · Type 4 Temperature Regulator - 6

Separate set point adjustment Thermostat with ... Integrated set point adjustment ,025 025 Type 2231/Type 2233 Thermostat with Type 2422 Valve balanced by a bellows Type 2231/Type 2233 Thermostat with Type 2422 Valve balanced by a diaphragm Fig. 6: Dimensions in mm Table 6: Dimensions in mm and weights • Type 2422 Valve 'I Based on PN 16 and without extension piece: +15 % for PN 25 and 40

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Self-operated Temperature Regulators · Type 4 Temperature Regulator - 7

Table 7: Types 2231 to 2235 Control Thermostat 1 Larger immersion depths on request Mounting parts for Type 2233 and Type 2234 Table 8: Thermowells for Type 2231 and Type 2232 Thermowells for Type 2231 and Type 2232 Table 9: Thermowells for flammable gases (G 1/PN 100)Extension piece/separating piece Extension piece (standard) Add the dimension L to H and H1 when these accessories are used.

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