This economic Gentec semi-automatic system is designed for a continuous supply of high
purity and corrosive gases. It caters to a primary bank and a reserve bank of cylinders.
Because of the differential pressure between the primary and reserve banks, the changeover
takes place automatically when the primary bank is depleted to provide a continuous supply
of gas from the reserve bank. In order to activate the next switchover, the regulators on both
banks need to be readjusted upon changing the cylinders. Stable pressure output is provided
by the optional second pressure regulator on the main line.
A common application for this autochangeover is for argon gas for ICP / ICP-MS
instruments and CO2 switchover for CO2 incubators.
Features:
- Continuous gas supply
- Metal-to-Metal diaphragm seals
- Pressure adjustment handle on regulator
- Gland check valves on pigtails
- Rear bracket mount
Typical Applications:
- Research laboratories
- Gas and liquid chromatography
- Laser gas systems
- Purging system
- Zero & calibration gases
- Hydrocarbon services
- Leak testing
Specifications:
- Maximum Inlet pressure: 3000psig
- Working temperature: -40 °F ~ 140 °F(-40 °C ~ 60 °C)
- Pipe: 1/2” seamless stainless steel(BA grade)
- Flow rate: see flow data chart
- Regulator leak rate: 2 X 10-9 atm cc/sec He
Pressure Regulator Construction Materials:
- Body: 316L, Chrome-plated brass
- Diaphragm, filter: 316L
- Bonnet: 304, Chrome-plated brass
- Seat: PCTFE
- Stem: 316L
- Spring: 316
Optional Components: - Ball isolating valve
- Diaphragm valve
- Needle valve
- Filter
- Flash back arrestor
- Flexible hose to connect to gas cylinders
- Low gas alarm system
Note: Check valve must be added to the inlet of the changover to prevent gas leakage during cylinder change.
Flow curve and dimension :
