Ammonia solenoid valve
Coil is hermetic by plasticl, being moisture, shock and corrosion proof. All parts being stainless steel.
Solenoid valve for ammonia and freon
Features:
1. Coil of this type is hermetic by plastic. It features moisture proof, anti-viberation, and anti-corrosive. All parts are made by stainless steel. It can be used for ammonia and Freon refrigerating system, pneumatic hydraulic and water supply system.
2. Suitable for HFC, HCFC refrigerants and Ammonia; Clean water;
3. Coil type:
AC: 24V 36V 110V 220V
DC: 12V 24V 110V 200V
4. Opening pressure diff:
AC: 0.05----21bar
DC: 0.05-17bar
5. Max working pressure: 30bar
6. Working range: ---25° Ccentigrade to 100° C
Operating principle
ADF series solenoid valve is pilot type valve. When energized the coil, it lead a magnet and pick up plug, open the small orifice, course to pressure in upside of valve reduced. So the pres sure difference happen both side of diaphragm. The pressure difference lift diaphragm to open the main Orifice. When main orifice open, dia phragm shouldnt drop even if pressure difference both side of diaphragm exist too, because of flow inertia function. When coil deenergized, plug drop to close small orifice because of reset spring. Media flow to upside of valve through throttle orifice. Then balance pressure both side of diaphragm, so diaphragm return to close the mail valve.
Installation:
1. The valve must install in horizontal pipe line under vertical position. The flow direction must be meet the arrow direction in valve boby.
2. Installing position should be low viberation.
3. Must install filter before solenoid valve in order to prevent block throttle port and lead to no function.
4. The coil input power must meet rated input power showed on the label.
5. System operating pressure must be meet open valve pertormance.
6. Departure coil from valve when en ergized in coil is limited in order to avoid damage the coil.
7. According to valve with manual function. It must turn manual bar to open the vaNe bemre doing system air tightness, in order to avoid to damage diaphragm.
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.
