TR25/R
3Pages

Catalog excerpts

ADCA SELF-ACTING TEMPERATURE REGULATORS TR25/R (Reverse action for cooling systems) DESCRIPTION The TR25/R valves series are designed for temperature control in cooling systems where the valve opens with temperature rise. They are single seated, unbalanced and intended to be coupled with T series thermostat models T.205 and T.405. The liquid filling the thermostat expands when the temperature of the fluid being cooled rises, opening the valve. MAIN FEATURES Easily adjustable temperature range. Proportional temperature control. Single seated, two way, reverse acting valve. Built-in strainer. Narrow thermostat neutral zone (1,5 to 2,5 ºC). No special tools required for servicing. Stuffing box is an integral part of the thermostatic element, allowing easy and simple maintenance of the valve. OPTIONS: PK sensor pocket. Diffferent capillary lenghts. Other thermostats on request. Water, air ad other gases and liquids compatible with the construction. AVAILABLE VALVES: AVAILABLE THERMOSTATS: TR25S/R – carbon steel. TR25i/R – stainless steel. T.205 – 400 N (max. closing force). T.405 – 500 N (max. closing force). Female threaded ISO 7 Rp. Flanged EN 1092-1 PN 40. BODY LIMITING CONDITIONS THERMOSTAT RANGES: INSTALLATION: T.205: 0 to 60 ºC, 30 to 90 ºC and 60 to 120 ºC. T.405: 0 to 120 ºC and 40 to 160 ºC. Horizontal installation with the thermostat in the vertical position, in order to reduce wear. A “Y” strainer should be installed upstream of the valve. See IMI – Installation and maintenance instructions. VALSTEAM ADCA RELATED TEMPERATURE Minimum operating temperature: -10 ºC. Maximum operating temperature: 150 ºC. We reserve the right to change the design and material of this product without notice.

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ADCA TR25 – T SERIES THERMOSTATS – FTO, UNBALANCED TRIM, METAL SEALING (CLASS IV) TYPE MAX. PERMISSIBLE PRESSURE DROP PROPORTIONAL BAND The proportional band is the temperature change required for the valve to move from its fully open to fully closed position. It depends on the valve stroke (mm) and on the thermostat movement per ºC (mm/ºC), and is calculated as follows: Proportional band = Valve stroke (mm) Thermostat movement (mm/ºC) Thermostat movement for T.205 and T.405: 0,5 mm/ºC. A proportional band between 8 ºC and 13 ºC is suitable for most applications. A smaller proportional band...

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* Valve plug * Available spare parts. PK SENSOR POCKETS Sensor pockets made of stainless steel can be supplied with all TR series self-acting thermostats using rod sensors. A sensor pocket, also called thermowell, is used to protect the sensor and to allow its removal while the plant is running or, e.g., the tank where it is connected to is full. The use of sensor pockets implies delay of heat transfer to the rod sensors and, thus, a longer thermostat reaction time. This is, to some extent, counteracted by filling up the sensor pockets with a thermal conductive paste or glycerine....

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TR25/R 3Pages

Catalog excerpts

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TR25/R
3Pages