18 Energy
Additional Products
Our portfolio includes standard products and custom solutions suitable for the global
energy industry.
Air Piloted Valves (APV's) Type 422 - Fail freeze ATEX IS valve
APV's are required:
» For applications with large, heavy duty actuators
» To open or close the Armature/Valve (Globe/Gate/Butterfly….)
» To fill or exhaust the Actuator when required
e.g. Emergency Shut Down
The Type 422 IS is the only ATEX certified fail freeze proportional valve
on the market today.
Fail Freeze operation means that if the signal to the valve fails
suddenly, the unit will maintain its last output pressure, ensuring
that critical systems do not shutoff or close on plant in the event of a
power failure.
IS certification provides system designers, and users, the flexibility to
safely use potentially flammable compressed process gases to pilot
their applications, providing the opportunity to remove the need, and
cost, of installing a pneumatic system.
One area of the Energy Sector that makes full use of these combined
unique attributes is Gas Distribution. In reduction stations the natural
gas is piped out of the line and into the Type 422 IS which then regulates
it precisely positioning the actuator and the pipeline valve, the fail freeze
capability ensures the gas stays on, even if power is lost locally.
» Operating Temp: -10°C to +70°C
» Linearity: <0.5% of span
» Pressure range: 0.2 – 1.0 Bar
» Response: <6 seconds
» Power Consumption: <0.25W
» Ingress protection: IP65
Find out more
norgren.com
-60 to +80°C
80400
SIL approved
316L Stainless Steel
construction
