費斯托比例調(diào)壓閥功能好概述FESTO調(diào)壓閥

費斯托比例調(diào)壓閥功能好概述FESTO調(diào)壓閥

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　　Variant 2, without external auxiliary pilot air

　　4 Variant 4, with external auxiliary pilot air

　　the setpoint value. In initial position

　　（no setpoint specification）， the outlet

　　pressure is reduced with the vent seat

　　The variant PREL-186-…-40CFX2 is

　　by the proportional pressure regulator

　　VPPL via an integrated pressurechesd

　　sensors and in combination with an

費斯托比例調(diào)壓閥功能好概述FESTO調(diào)壓閥

　　external controller, it is used to implement

　　the safety function “Safe venting”

　　to DIN EN ISO 13849-1:2008y pilot

　　sensor and compared internally to the

　　setpoint value. In case of deviations,

　　the VPPL actuates the regulator of the

　　PREL until the outlet pressure reaadditionally equipped with the twochannel

　　shut-off valve PAHL. With the

　　integrated solenoid valves an

　　5 Variant 5, with external auxiliary pilot air,

　　with 2 bar offset in setpoint input

　　8 Variant 8, with external auxiliarregulator

費斯托比例調(diào)壓閥功能好概述FESTO調(diào)壓閥