Description
Priority valve single-pipe VVE
- This 3/2 way priority valve connects two CO2 lines or one compressed air line and one CO2 line.
- In normal state, the VA inlet is connected to the CA outlet. When pressure is admitted to the CO2 inlet, the valve reverses, connecting the CO2 inlet to the CA outlet. The VA inlet will be closed off.
Priority valve double-pipe VVZ
- This 6/2 way priority valve is used in OPEN / CLOSE controls. There it connects two CO2 OPEN lines or one compressed air line and one CO2 OPEN line. The CLOSE line of the SHEVS unit exhausts automatically.
- In normal state, the VA inlet is connected to the CA outlet. When pressure is admitted to the CO2 inlet, the valve reverses, connecting the CO2 inlet to the CA outlet. The VA and VZ inlets will be closed off. The SHEVS return line connected to the CZ outlet exhausts at the same time.
OPEN/CLOSE priority valve VVAZ
- This priority valve is used in OPEN / CLOSE controls. There it connects two CO2 OPEN lines or one compressed air line and one CO2 OPEN line. Furthermore, two CO2 CLOSE lines or one compressed air line and one CO2 CLOSE line are interconnected. Reciprocal venting must take place in the control valves for the OPEN/CLOSE function.
- In normal state, the VA inlet is connected to the CA outlet, and VZ inlet to CZ outlet. When pressure is admitted to the CO2A inlet, the valve reverses, connecting the CO2A inlet to the CA outlet and the CO2Z inlet to the CZ outlet. The VA and VZ inlets will be closed off. The same applies when pressure is admitted to the CO2Z inlet.
On request can be sent with mounted screw fittings ex works.
Specifications
- Operating pressure max. 60 bar
- Inlet operating pressure max. 16 bar
- Control pressure for CO2 inlets min. 4 bar
- Nominal valve diameter 4,0 mm
- Connection thread 1/8"
- Ambient temperature range -25 °C to +80 °C, according to VdS 2159 for 2 hours up to +110 °C
Variants
- VVE-SA Single-pipe priority valve with visual indicator
- VVE CO2 with inlet on top Single-pipe priority valve with CO2 top inlet
- VVE CO2 with a side inlet Single-pipe priority valve with CO2 side inlet
- VVZ-SA Two-pipe priority valve with visual indicator
- VVZ CO2 with inlet on top Two-pipe priority valve with CO2 top inlet
- VVZ CO2 with a side inlet Two-pipe priority valve with CO2 side inlet
- VVAZ On/Off priority valve
Accreditations
VdS G590014