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9801
The EPTA® 9801 relief valve (fail close FC- fail open FO) is used mainly in gas lines as blocking or venting system depending on the configuration of the actuator and the installed peripheral elements.
This line is pneumatically operated using an actuator to diaphragm and antagonistic spring.
It has an open-close indicator and its opening time is more than a 30 seconds and their closing time is less than 1 second, it can be normally open (vent) or normally close (blocking) depending on the actuator.
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RP1098
CONTROL VALVES and PNEUMATIC INSTRUMENTS
PRESSURE REDUCING VALVE RP1098 NORMAL CLOSE (FC)
The EPTA® RP1098 regulating valves are used when it is necessary to provide sensitivity, safety and high capacity.
This model of valve is usually used in gas distribution system.
NORMAL SERVICES: Gas fluids
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SOS
The EPTA® SOS (shut-off security) blocking valve is a positive close action valve, that is to say, normally close by the spring and kept in that position by the stream direction. The blocking trigger is formed by a piston or diaphragm and the reset is done manually. The blocking can be high cut-out, low cut-out or high cut-out and low cut-out pressure. The close of the seal is unbalanced.