Swing check valve - L 10 117-616 PN 16



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.

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

Various design
L10 - basic
L11 - with lever and counterweight
L12 - with by-pass
L17 - with lever and counterweight and by-pass

Application
Self-acting valve preventing from reflux of
transported medium. It is used for water,
steam, gases and other non-aggressive liquids
for working pressures and temperatures:


Swing check valve is not a shut-off valve. If
tightness is required, shut-off valve must be
also inserted into the pipeline.

Technical description
Swing check valve is a full bore valve. The
valve disc is attached to the arm with joint pin.
This design improve the valve sealing
properties of the valve.

Connection
Flanges as per DIN 2501 and DIN 2526,
Form C. Face-to-face dimensions as per
ÈSN EN 558 (line 1) and DIN 3202/F6
(line 2). Basic connecting dimensions are
given in the table.

Materials
Body, bonnet, disc cast iron (GG-20)
Pin stainless steel (13Cr)
Disc malleable iron (GTS-35-10)
Sealing surfaces - body brass
- disc brass (up to 200°C)
rubber (up to 120°C)

Testing
Swing check valve is tested as per DIN 3230,
(ÈSN 133060, part 2). 


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