Page 70 - Alkon - Directional Control Air Valves & Accessories

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D E TR O I T L I NE F O R G L A S S I ND U S TR Y

AIR PILOT OPERATED VALVES

Air pilot operated valves are recommended for applications where the substitution
of pilot air circuitry for solenoid operated valves is more suitable.
Controlled pilot signals using pilot air systems show comparable response to
electrically operated valves, and in many cases, response is enhanced by their use.
3-way valves may be used normally open, normally closed, or as a selector or
directional valve without modification. They are operated with an air pilot signal.
2-Way Line Mounted 3-Way Line Mounted

ASK594 Valve

The ASK594 Valve was first developed in 1963 for the glass making machine industry.
It is basically a 4-Way, air pilot, spring return valve with a visual indicator. The base may
be mounted directly on top of a cylinder with porting conforming to the “SK” base
interface. The base, exhaust restrictors, and isolation valve are optional. The ASK is the
newest version of the same valve.
MODEL # DESCRIPTION

ASK-594V Valve on base, no indicator with exhaust restrictors
ASK-5645V Valve on base, with indicator with exhaust restrictors
ASK-5946V Valve on base, with indicator without exhaust restrictors
Note: Specify less base, if base is not needed.

3072-C Isolation Valve

This functional unit easily adapts to the ASK594 valve to provide a quick manual system
shutdown. Although the ASK594 normally operates as a 4-Way air piloted valve, by
inserting the 3072-C between the air pilot end cap and the valve body, the air pilot
signal is blocked to the main valve and the ASK spool returns to a de-energized position.

SP-3207 Dual Isolation Valve

Just like the 3072-C, this valve adapts easily to the ASK594 valve to provide a quick
manual system shutdown while, at the same time, blocking the signal to another remote
valve in the system. This provides a simultaneous isolation of the dual pilots.

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