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1) VALVES (47)
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2) INSTRUMENTS (9)
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3) ACCESORIES (32)
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VD277SA
REGULATING DIAPHRAGM VALVE with BLOCKING SYSTEM VD277S
The EPTA® diaphragm valve with blocking system VD277S is a pressure regulator valve which is used in industries and distribution systems. The operating principle is based in the pressure difference on the diaphragm made by the regulation. It has an external regulated pilot P67S/2, an external variable restrictor RV2 and a filter F250. It has a security system with a blocking system with an independent seal.
The blocking trigger in VD277S is composed by a piston or diaphragm. The return is automatically made by the automatic relay. If it is used as a blocking active valve there is also a noise attenuator.
For the VD277SA/AR the blocking system and automatic return is commanded by two pilots (cut when high pressure and return when low pressure) which set point values are regulated. -
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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AD644 (Differential Pressure Actuator)
This actuator is used in ICR bodies and its function is to keep a differential pressure between 2 fluids: the outlet of the body of the ICR valve and the one form the reference pipeline. Both pressures are pumped in the upper and lower chambers of the actuator, and the spring is used to establish the value of the differential.
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AN657 and AN667 for ICR
The actuators AN657 y AN667 are in charge of the pneumatic control of the control valves. It carries out a modulating control or establishes an on-off to the valve, it the input signal is of that type.
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AN57D and AN57I for VE
The EPTA® AN57d and AN57i actuators pneumatically command the VE type control valves. It performs a modulating control or prints an on-off function on the valve, if the received signal is of that nature. For normal signals of 3-15 psi and 6-30 psi the AN57 actuator is reversible between NA and NC (AN57d and AN57i).
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Line ICR-H
This line is used for regulating or high pressure blocking valves. Changing the inner parts can be done without removing the body of the valve from the pipe. It is provided normally open or normally closed depending of the actuator.
