Application
The function of a CNG dispenser is to introduce compressed natural gas into motor vehicles. This can be done directly from the compressor unit, but most commonly used systems are the single bank or multi bank dispensers.
- Single bank dispenser:
Operated by a single, first level solenoid valve. Its hydraulic system communicates with a single storage unit. - Multi bank dispenser (cascade system):
Operated by two or three solenoid valves (first, second and third level). Its hydraulic system communicates with two or three storage units.
This final system gives a filling speed, which is comparable to petrol dispensers.
A design fitted with extremely high pressures
All the parts of the valve have been engineered to stand up to the high pressures needed for gas compression and its control. Solenoid valves are designed to hold a burst pressure up to 1400 bar
- Compact, reliable stainless steel body
- 500.000 cycles lifetime
PEEK (PolyEthylEtherKetone) piston, allowed for a large temperature range: -40°C to +70°C - ÄP of 350 bar
The core is a spring loaded needle design.
It is the combination of kinetical energy pulse, magnetical force and a very small pilot orifice that enables the valve to operate at a ÄP of 350 bar - Explosive atmosphere environnement
Solenoid heads for ATEX zones - Epoxy encapsulated coil with ATEX
II 2G EEx m II T4 protection mode - Zinc plated steel or stainless steel housing with II 2G EEx em II T3 protection mode
Specification
- Pipe size: 3/8 and 1/2
- Orifice size: 8 and 12 mm
- Kv value: 0,96 and 2,3 m³/h
- Operating pressure differential: 10 bar min. - 350 bar max.
- Fluid temperature range: -40°C to +70°C
- Ambient temperature range: -40°C to +70°C
Documentation
Solenoid valves, high pressure, pilot operated, for CNG applications, 3/8 to 1/22