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Type 43-3 Temperature Regulator

Type 43-3 Temperature Regulator
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T 2173 EN Type 43-3 Temperature Regulator Series 43 Self-operated Temperature Regulators · with Three-way Valve Application Temperature regulators for mixing and diverting 1) service in heating or cooling installations · Temperature set point from 0 to 150 °C · Valves G ½ to G 1 female thread · DN 15 to 50 with welding ends, threaded ends or flanges · PN 25 · Suitable for water up to 150 °C Note Temperature regulators (TR), safety temperature monitors (STM), and safety temperature limiters (STL) tested according to DIN EN 14597 are available. Special features •• Low-maintenance proportional regulators requiring no auxiliary energy •• Temperature sensor suitable for installation in any desired position and for operation at high excess temperatures, designed for operating pressures up to 40 bar •• Convenient set point adjustment with a dial •• Three-way valve for mixing and diverting service, flow rate across the port AB independent of the valve plug position •• Suitable for water •• Version with double adapter Do3 for the attachment of additional control thermostats or manual adjuster (u T 2176) Versions The regulators consist of a three-way valve made of red brass and a control thermostat with set point adjuster, capillary tube, and temperature sensor operating according to the adsorption principle. Type 43-3 · Temperature regulator with unbalanced three-way valve · Female thread connection G ½ to G 1 · DN 15 to DN 50 for connection nuts with welding ends, threaded ends or flanges · Water resistant · Type 2430 Control Thermostat Fig. 1: Type 43-3 Temperature Regulator, DN 25, with welding ends Safety devices tested according to DIN EN 14597 The register number is available on request. The following versions are available: Additionally, safety temperature monitors (STM) and safety temperature limiters (STL) are available. Further details can be found in Data Sheets u T 2183 and u T 2185. Type 43-3 Temperature Regulator (TR) for which the maximum operating pressure must not exceed the maximum permissible differential pressure Δp specified in the technical data. Only SAMSON thermowells can be used for sensors with thermowells. Further details on the selection application of tested equipment can be found in Information Sheet u T 2181. 1) Used as a diverting valve, only with male thread to attach welding ends, threaded ends, or flanges Accessories –– Thermowell made of copper, PN 40, G ½ or CrNiMo steel, PN 40, G ½ –– Combinations available on request Special versions –– ANSI version on request –– 5 m capillary tube SAMSON AKTIENGESELLSCHAFT · Weismüllerstraße 3 · 60314 Frankfurt am Main, German

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Principle of operation (see Fig. 2) The temperature regulators work according to the adsorption principle. The temperature of the measured medium creates a pressure in the sensor which is proportional to the measured temperature. This pressure is transferred through the capillary tube (6) to the operating bellows (9) and converted into a positioning force. This force causes the pin of the operating element (10) to move the plug stem (4) with the valve plug (3). By turning the set point adjuster (8), the point of response is changed over the valve spring (5). Type 43-3 as mixing valve The...

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Examples of arrangements for Type 43-3 Temperature Regulators Heating Flow pipe Flow pipe B Return flow pipe A Return flow pipe Flow pipe Flow pipe Mixing valve B Return flow pipe Return flow pipe In the return flow pipe Flow pipe Flow pipe Flow pipe Return flow pipe A AB Return flow pipe Return flow pipe Diverting valve In the return flow pipe B Return flow pipe In the return flow pipe Diverting valve In the return flow pipe Fig. 4: Regulator arrangement in heating or cooling installations Table 1: Technical data · All pressures in bar (gauge) Type 2433 Three-way Valve Connection Female...

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Table 3: Dimensions in mm and weights Connection Valve size Connection nuts with welding ends, threaded ends or flanges H5 Connection nuts with welding ends L2 Connection nuts with threaded ends (male thread) Male thread A Connection nuts with flanges (PN 16/25) L4 Weights for version with bulb sensor and thermowell · Version without thermowell: minus 0.2 kg Dimensions (values in parentheses for DN 32 to 50) Bulb sensor With thermowell With screw gland Threaded ends Welding ends The flanges are already mounted to the valve with flanges in DN 40 and 50. Ordering text Type 43-3 Temperature...

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