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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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OM ICR
The EPTA® OM-ICR manual operated valve is used in manual regulation as regulating blocking valve in a wide range of fluids (Gases- Liquids and Steam).
This characteristic is present in the ICR (Quick Change Inner Parts). The manual drive design “Multi-turn” allows a constant regulation together with the selected inner parts (Balanced /Unbalanced), depending on the service conditions.
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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.
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VG754S
The EPTA® VG754S fail to open (FTO) pressure regulating valve has an incorporated blocking system, and the blocking seal is independent from the regulation seal. The manual reset is done using a lever, the blocking system and the automatic reset is done using pneumatic relays.
They are used when sensitivity, safety and high performance are needed in distribution networks.
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VD277
The EPTA® VD277 fail open (FTO) pressure regulating valve is a model designed for distribution networks. Its performance is based in the pressure difference made by the regulation on the diaphragm. It has an external regulation pilot, an external variable restrictor and a filter F250. All the elements are installed and interconnected.
