Safety Valve For Pneumatics - Nordson VersaBlue VBN 50 Manual

Adhesive melters vbn without controller

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5-18

Maintenance

Safety Valve for Pneumatics

Performance Check

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Fig. 5-19

Cleaning

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Fig. 5-20

P/N 7146386A

The safety valves, preset at the factory and lead sealed, prevent higher

pressurization than permitted of the subsequent pneumatic components.

When the factory settings are exceeded, compressed air audibly escapes.

NOTE: The safety valves for the pneumatic options are located in the

melter tower.

The performance of the safety valve should be checked approx. every six

months. Do this by turning the knurled screw until the compressed air is

audibly released. If the safety valve does not function properly, it should be

cleaned. If it still does not function, it must be replaced.

NOTE: A defective safety valve may be replaced only with an original spare

part. Only the manufacturer may perform repairs to the safety valve!

Pollution that has penetrated fitting surfaces and conical nipples can be

removed by unscrewing the entire top piece − without changing the

minimum operating pressure. Use a sickle wrench to unscrew.

VBN w/o Control System

E 2008 Nordson Corporation

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