Butterfly swing check valve - C 09 403-510(516) PN 10(16)


Application
Self-acting valve preventing from reflux of
transported medium. It is used for services in
water supplies and power supplies for water,
air and other non-aggressive liquids for
working pressures and temperatures:


Technical description
The butterfly swing check valve is not a shut-
off valve. Revolving disc is fixed with
eccentricity on the two pins. The disc is
pushed to the sealing surfaces during reverse
flow.

Connection
Flanged connection is as per DIN 2501. Basic
connecting dimensions are given in the table.

Materials
Body, disc cast steel (GS-C25)
Pin stainless steel (13Cr)
Sealing surfaces stainless steel

Testing
Valve is tested as per DIN 3230.

Installation
Valve can be installed either into horizontal or
vertical position. In vertical pipeline disc must
be in upper position and flow direction must
be upwards. Medium flow must be as per the
arrow on the body.

Control
Self-acting by the pressure of working
medium on the valve disc which in the closed
position avoids reverse flow of medium.


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