Spring-loaded air-inlet valve with threaded neck - P 80 147-516


Application
Safety valve to prevent various equipment
against vacuum exceeding allowable value
within the range from 0,001 MPa to
0,097 MPa. Standard version allows
surrounding air to be sucked into the
equipment if service pressure drops by about
0,01 MPa below barometric pressure.
Suitably adjusted filter screen or strainer must
be used in dusty areas to ensure that the air
taken in is clean.

Technical description
The valve has a threaded neck. Closing disc
fits in a seat pressed into the valve body. The
disc is pressed into the seat by a tightening
stud and held tight by a spring.

Connecting and end-to-end dimensions
End-to-end dimensions are given in the table.

Material
Body, cover carbon steel (42 2643.1)
Disc, seat nonferrous metal
Spring special steel

Testing
The valve is tested as per ČSN 13 4309.2,
DIN 3230.

Installation
The valve must be installed only in vertical
position with the tightening stud above the
disc.

Operation
Automatic.


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