DANFOS Hot gas bypass regulator Types TUH, TCHE and TGHE For Air Conditioning
TUH, TCHE and TGHE capacity regulators adapt compressor capacity to actual evaporator load in applications operating at an evaporating temperature of around 0°C.
TUH, TCHE and TGHE valves are typically used in applications such as:
• Air driers
• Water chillers
Fitted in a bypass between the high and lowpressure sides of the air-drier system, TUH, TCHE and TGHE maintain compressor suction pressure by injecting hot gas/cool gas from the high-pressure side.
TUH has internal pressure equalisation and opens when pressure drops at the valve outlet. TCHE and TGHE have external pressure equalisation and open directly when compressor suction pressure drops.
For all types, the bulb only serves as a reservoir for the charge. However, it is recommended that the bulb be mounted in a location where temperature variation during operation is limited.
Features:
• Bimetal connections for TUH and TCHE.
Straightforward and fast soldering (no wet cloth or refrigeration pliers required) • Replacement capacities up to 28.9 kW (8.3 TR) for R410A • Stable regulation
• Tight across the seat • Compact design.
• Small dimensions and low weight
• Hermetically tight design
• Stainless steel, hermetically tight solder version
• high connection strength
• high corrosion resistance
• capillary tube joints of high strength and vibration resistance
• Laser-welded, stainless steel diaphragm element
• optimum function
• long diaphragm life
high pressure resistance
• Adjustable setting
accurate setting
• fine tuning possible
• Low p-band
• Low hysteresis
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