| Customization: | Available |
|---|---|
| Media: | Ammonia, Fluorine,Propane,Propylene,etc |
| Temperature: | -50c to +150c |
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Technical parameters:
Nominal pressure: 2.8MPa Applicable temperature:-50ºC~+150ºC
Test pressure: 4.2MPa Applicable medium:ammonia,fluorine,etc.
Characteristics:
- RAK-W are servo-operated valves normally open and pneumatic closed by means of refrigerant gas acting upon power piston, taken from external high pressure line through a solenoid pilot AEVM type, mounted on the bonnet.
- RAK-W valves are designed to use with ammonia and other common fluorinated refrigerants,for use insuction lines or any application that need a valve normally open with automatic closing for short period.
- RAK-W valves can operate with △p=0 and in any position. But when the
valves are closed or open, there is a bleed of gas around the piston and
a small bore to allow open the valve when the high pressure gas stream
is closed. Nevertheless, if this small bleed cannot occur or you need a
valve without bleed around the piston,you must use our RACK normally
closed valve,or the option RAK-2WS type,but with this last type you need
to include two solenoid pilots, one to shut off the hot gas inlet flow, and
the second one to empty the chamber over the piston, and to avoid open
the valve again.
- The inlet of hot gas to solenoid pilot is through a nut & nipple connection
of 1/4" or 3/8"brazed or welded to nipple.
Name |
Type |
ize(mm) | Kv | Cv | |||||||
| DN | φd | A | H | L | L1 | ||||||
| RAK-W Pneumatic stop valve |
RAK-W 25 | 1" | 25 | 34 | 25 | 65 | 190 | 190 | 125 | 9 | 10.5 |
| RAK-W 32 | 1 1/4 | 32 | 42 | 32 | 70 | 215 | 245 | 170 | 16 | 19 | |
| RAK-W 40 | 1 1/2 | 40 | 48 | 40 | 70 | 215 | 245 | 170 | 30 | 35 | |
| RAK-W 50 | 2" | 50 | 60 | 50 | 70 | 220 | 255 | 180 | 40 | 47 | |
| RAK-W 65 | 3 | 65 | 76 | 65 | 85 | 245 | 295 | 220 | 75 | 88 | |
| RAK-W 80 | 3" | 80 | 89 | 80 | 95 | 265 | 330 | 250 | 140 | 164 | |
| RAK-W 100 | 4" | 100 | 108 | 100 | 125 | 300 | 415 | 330 | 200 | 234 | |
| RAK-W 125 | 5" | 125 | 133 | 121 | 120 | 405 | 350 | / | 207 | 240 | |
| RAK-W 150 | 6" | 150 | 159 | 146 | 150 | 445 | 445 | / | 354 | 410 | |
Changzhou AMG Refrigeration Equipment Co., Ltd. has introduced the world's advanced technology and equipment for specialized manufacture of steel valves in AMG series. Because of their perfect design, excellent performance and high-quality manufacture, they were awarded "Golden Prize of China International Patent & Brand Exposition" and "Certificate of Recommendation for High-quality Products of the US Council of International Quality Authentication".
Steel valves in AMG series are featured by good-looking and artistic appearance, advanced and unique structure, lightand flexible operation, excellent sealing performance, zero leakage, high reliability and long service life. They are widely used inrefrigerated-storage and freezing systems in the industries of cooling, refrigeration and air-conditioning as well as the industries of food, beverage, bear, pharmaceutical, ship-building, gas, chemical, petroleum, etc.
A high-performance refrigeration system is dependable on high quality components. The application of AMG series steelvalves with high quality and reasonable price will offer you a complete alternative for expensive imported valves while adding luster to your products.
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