DOUBLE ACTING AIR LOCK RELAY

PD SIOS

PRODUCT DESCRIPTION

Philair make Double Acting Air Lock up relay is used in conjunction with double acting power cylinders for locking the air in both chambers of cylinder whenever the main supply pressure falls below a pre-set value

SPECIFICATION

  • Model : PD SIOS
  • Supply Pressure : 7Kg/cm2
  • Set Pressure : 2-6.5 Kg/cm2
  • Flow Rate : > 600 NI/Min at 5 kg/ Cm2
  • Air Consumption : Less than 0.5 NI/Min
  • Hysteresis : Within 1%
  • Ambient Temp : -5°C~60°C
  • Port Size : 1/4" NPT(F)
  • Material : SS

SALIENT FEATURES

  • Compact Design
  • Quick response
  • High Stability & Reliability
  • Longer life
  • Easy to Install
  • Trouble Free Services
  • Economically Priced
  • Soft Seating for Bubble Tight Shut Off
PRODUCT OPERATION

The unit is mounted between output lines of double acting positioned and chambers of power cylinder. The supply pressure (signal) connected to the relay is sensed by a spring loaded diaphragm and the thrust developed enables a pilot valve to open. The output from the pilot valve acts on a piston and the thrust developed by it acts upon the plunger, which opens both the ports simultaneously. When malfunction in the control signal circuit occurs pressure holding above the piston. Downwards is lost through the exhaust valve inlet valves closes with spring return and the circuit is sealed. This closed condition will continue until the signal pressure is established to the original level.

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