Back pressure dependent, spring-operated overflow valves. All overflow valves can also be used for refrigerator oil applications.
UVA Overflow Valves
AWP overflow valves are dependent on back pressure and are spring-operated, their components have not been tested individually. The lifting stem is sealed by two chloroprene o-ring seals. AWP overflow valves are suitable for installation as: safety devices for controlling the high pressure side of compressors, safety devices in combination with two safety pressure control valves whose components have been tested, safety device for protection of closed pipe systems.
Technical Features
- Available in steel or stainless steel
- Selection of body material as per German DIN EN12284, AD2000 Series W
- Working mediums: refrigerants as per EN 378 p. 1, e. g. NH3, R134a, R290 (propane), R507 and blends with refrigerator oil; neutral, gaseous and liquid media; glycol-based cold brine
- Installation position: vertical and horizontal
- Available valve seat seals: UVAA: PTFE seal, can be used at temperatures of -60 °C to +180 °C UVAB: elastomer seal, can be used at temperatures of -50 °C to +110 °C
Technical Specification
Design
angle type
Material
steel or stainless steel
Nominal Size
DN 10-32
Nominal Pressure Level
PS 25, PS 40, PS 63
Temperature Range for Standard Valves
UVAA: -60 °C to +180 °C
UVAB: -50 °C to +110 °C
Temperature Range for HT Valve Series
-10 °C to +200 °C
Connections
butt welding and flanged ends as per DIN and ANSI, brazed ends, threaded ends
Response Pressure Range
1-25 bar
Where to find us
- GEA AWP GmbH Armaturenstr. 2 17291 Prenzlau Germany
- Fax: +49 3984 8559 18
- E-mail: info@awpvalves.com
- Phone: +49 3984 8559 0
