RETURN-TEMPERATURE-CONTROL-VALVES
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FLOWSERVE GESTRA Return-Temperature Control Valves For the Economical Utilization of Cooling Water and Pressurized Hot Water

GESTRA Temperature Control Valves Introduction GESTRA temperature control valves ensure optimum utilization of cooling water and hot water of thermal oil. For cooling applications the coolingwater control valves (GESTRAMAT®) type CW are available, for hot-water or thermal-oil heating systems the return-temperature control valves (Calorimat) type BW are used. In many cases these self-acting valves produce the same result as far more expensive temperature control systems. GESTRA cooling-water control valves type CW and return-temperature control valves type BW are self-acting valves which are...

Return-Temperature Control Valves Cooling-Water Control Valves GESTRAMAT CW Purpose GESTRA cooling-water control valves are selfacting proportional controllers re­ uir­ng virtually q i no maintenance. They regu­ate the cooling-water l flow as a func­ion of the discharge temperature, t and reduce the cooling-water consumption to a minimum. The discharge temperature can be indi­ vidually adjusted with the setting key. A detailed description of the operation of the CW 41 is given on page 5. GESTRA cooling-water control valves automatically balance the system by adap­­ng their flowrates ti to...

Cut the Cost of Water and Power Cooling-Water Control Valves GESTRAMAT CW Examples of Application Available Designs, Technical Data GESTRA cooling-water control valves are used downstream of any cooling sur­ace, such as f condensers, air and oil coolers, coils in induction furnaces, chemi­ al baths, compressors and coldc storage houses. For brine circuits down to –37°C special designs are available (code letter “k”). Cooling-water control valves Nominal sizes (DN) Max. pressure barg (psig) Adjustable outlet temperature Application downstream of a counter-flow cooler Diaphragm actuator...

Return-Temperature Control Valves Design and Operation The valves are available in all standard sizes, so that they can be easily in­ talled, also into existing s sys­ems without the necessity of modi­ y­ng the t f i pipe layout. An op­imum adap­ ation to par­icular t t t pro­ ess requirements is guaranteed, since six c different interchangeable thermostat/cone combinations are available. Connections ◗ Connection for pressure gauge (standard supply). Not represented: connection for thermometer in the outlet (standard supply). Setting screw ◗ The setting screw is used to increase the...

Optimum Utilization of Heat Energy GESTRA Return-Temperature Control Valves BW Purpose Economic operation of a heating system depends to a large extent on an optimum flowrate through each heater and an efficient utilization of the heat content of the heating fluid. GESTRA return-temperature control valves were specially developed for this purpose in hot-water and thermal-oil heating systems.These self-acting control valves, requiring no maintenance, maintain constant return temperatures within their proportional range. The valves are set at our works to the desired closing temperature. On...

Return-Temperature Control Valves Available Designs, Technical Data GESTRA return-temperature control valves are used in hot-water or thermal-oil heating systems, in particular heating systems of large factories, for tracing systems, etc. Further applications: air heaters, any heat exchanger heated with hot-water or thermal oil, such as washing baths, chemical or galvanic baths, hot-water vessels, etc. One par­i­ ular application: temperature control of thertc mal-oil heated moulds for forced drying of precast concrete parts. Return-temperature control valves Nominal sizes (DN) Nominal...

GESTRA AG Münchener Straße 77, D-28215 Bremen P.O. Box 10 54 60, D-28054 Bremen Telephone +49 (0) 421-35 03-0 Telefax +49 (0) 421-35 03-393 E-mail gestra.ag@flowserve.com Internet www.gestra.de 810266-04/05-2013 · © 2013 · GESTRA AG · Bremen · Printed in Germany With Energy into the Future