Check valves stop check valves are automatically activated locking units. They are opened by the pressure exerted by the working medium upon the valve plate. As soon as the flow is interrupted or the flow direction is reversed, the valve locks automatically.The built-in damping device makes this type of valve especially suitable in cases where the power requirement varies significantly. installed on the pressure or suction side of compressors, or in pipes in which only one direction of flow is permitted. GEA check valves are maintenance-free. Any defects that occur in the functional performance of the valves can be repaired.
Technical Features
- Available in steel or stainless steel
- Selection of body material as per German DIN EN12284, AD2000 Series W
- Working media: glycol-based cold brine refrigerant EN 378 p. 1, e. g. NH3, R22, R134a and blends with refrigerator oil, neutral, gas and liquid media, glycol-based cold brine
- Mounting position: horizontal, and vertical for upward flow direction
| RV Check Valve | RVZ Check Valve | RVA Stop Check Valve | RVAK Stop Check Valve | |
| design | straightway or angle type | straightway or angle type | straightway or angle type | straightway or angle type |
| material | steel or stainless steel | steel or stainless steel | steel or stainless steel | steel or stainless steel |
| nominal size | DN 6-150 | DN 40 -350 | DN 10-200 | DN 10-150 |
| nominal pressure level | PS 25, PS 40, PS 63 | PS 25, PS 40, PS 63 | PS 25, PS 40, PS 63 | PS 25, PS 40, PS 63 |
| temperature range | -60 °C to +150 °C | -60 °C to +150 °C | -60 °C to +150 °C | -60 °C to +150 °C |
| connection | butt welding ends DIN, ANSI flanged ends DIN, ANSI solder ends screwed ends |
flanged connection as per standard | butt welding ends DIN, ANSI flanged ends DIN, ANSI solder ends screwed ends |
butt welding ends DIN, ANSI flanged ends DIN, ANSI solder ends screwed ends |
| other | hot-gas connection linear bearing oil drain |
cover extension linear ball bearing |
cover extension linear ball bearing |
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