Expansion valve
NRF/RT are integrated valves for freezing, air conditioning, commercial Ref. And transportation A/C and Ref.
Constant superheat adjusting performance.
Evaporating temperature range: -40° C~+10° C.
Can be supplied with MOP(Max operating pressure)
Protects the compressor motor against excessive evaporating pressure.
Changeable inputing filter net.
Suitable for R22, R134A, R407C, R507/404A.
Superheat adjusting
Factory setting: Superheat 3.5° C, static superheat adjusting range is between 2~8° C.
Take off cap and turn adjusting stem. Turn adjusting stem clockwise one round, reduces superheat 1.5° C.
Shanghai Thermostat Factory Co., Ltd. (STF) is a professional manufacturer of refrigeration and air conditioning auto-control units. We have 58 years' history in this industry.
In 1985, STF cooperated with ALCO to produce T series expansion valves. We were the only Chinese company having the mixed infusing technology in the expansion of valve production. In 1993, Shanghai Johnson Controller Co., Ltd. was established by our company and the U. S. Johnson to produce YK series controllers. In 1996, FDF-M series diaphragm solenoid valve was certified as the National Grade New Product.
Our main products include solenoid valves, thermostatic expansion valves, sight glasses, filter driers, pressure controllers, pressure difference controllers, and temperature controllers. We have gained approval for our quality control system. Products related with ISO9001: 2000 international standard and CE approval can be supplied.
Products are widely used by Carrier, YORK, Dunhambush, McQuay, Mammoth, HANBELL, RefComp, Midea, and others, and are sold to America, Europe, Australia, Africa, Korea, Hong Kong, the Philippines and Taiwan area.
We stick to the development of specialization, give the best solution of localization and keep advanced in technology by continual innovation. We are always pursuing to be a leading enterprise in our area.
