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Line P68S/2
The EPTA® P68S/2 pressure reducing pilot is used to control the regulated pressure and to keep it stable regardless the stream variation. It is normally used in pressure reducing valves to diaphragm from line VD277.
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Line P78AL
The EPTA® pilot model P78AL is used in pneumatic instruments to control relief valves which control the upstream pressure. This control is achieved by opening the relief valve whenever there is any overpressure, thus avoiding to exceed a maximum fixed value, regardless the stream variation that may take place upstream the valve which controls the pilot. It is used in valves type FC (Fail Closed or Normally Closed), as for example RG107A, RG97A.
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Line PR
The EPTA® PR pressure pre-reducer is used mainly in pilot regulating valves or in pneumatic instruments to control the regulated pressure and to keep it stable regardless the downstream variation. In order to make the outlet pressure pair the variations of the signal, and thus to maintain a constant differential in the pilot so as to have a better control of the valve.
As the name suggests, it is used to reduce the inlet pressure to a pilot, thus improving the performance of the valve the pilot controls. -
Line PR6754
The EPTA® PR6754 pre-reducing pressure is used in pneumatic instruments to control the regulated pressure and to keep it stable regardless the downstream variation of the valve it controls. It receives an external signal which adds to the range of the spring previously compressed, so the outlet pressure can pair with the variations in the signal and thus maintain a constant differential in the pilot to provide a better control of the valve.
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Line R1
The 2-way pneumatic relay R1 (Direct or Reverse) is typically used together with a pneumatic switch to block or put back valves. It can also be used in pneumatic instruments as secondary element. When the registered pressure reaches the setting relay value, this sends a pneumatic signal to the switch producing a variation in their state. Its main function is to register the pressure in service line.
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Line R2
The pneumatic blocking relay R2 (Direct or Reverse) is typically used together with a pneumatic switch to block or put back valves. It can also be used in pneumatic instruments as a secondary element. When the registered pressure reaches the relay setting value, the relay sends a pneumatic signal to the switch thus producing a variation in its state. Its main function is to register service pressures on line.
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Line RP1301
The EPTA® RP1301 high pressure reducers are used in pressure reducing valves, control panels, control valves and instruments type fail close (FC) or fail open (FO), etc.
The pressure reducers, RP1301 EPTA®, are used when there is high inlet pressure (depending on the construction material) and a it is needed a high outlet of the fluid with a constant reduced pressure.
The reducers can have a heating chamber incorporated. -
Line RP1305
The EPTA® RP1305 high pressure reducer is used to avoid hydrates to appear when there are big increases in pressure. This regulator is used for services with natural gas, air or propane and other gases that are not aggressive to the construction materials.
The reducer expansion point is inside the flow tube of the fluid which pressure we try to reduce. Therefore, as the temperature of the gas in the tube is relatively high, the formation of hydrates in that point of expansion are prevented.
