Shut-off valve used mainly for water, steam,
air, natural gas, coke-oven gas, oil products,
diesel, petrol, oil etc. for working pressures
Revolving disc is fixed with double
eccentricity in the body. Teflon sealing with a
special shape is fixed in the body and secured
by the thrust ring. Sealing surface on the disc
is welded on. Pin and shaft are placed in self-
lubricating bearings. Pin is sealed by the flat
asbestos-free gasket and shaft by soft-cord
Wafer connection is as per DIN 2501, resp.
ČSN 131060. Face-to-face dimensions as per
ČSN EN 558-1, line 16. Basic connecting
dimensions are given in the table.
Body wrought carbon steel
Disc wrought carbon steel + weld.
Shaft, pin stainless steel
Sealing ring PTFE, PTFE+15%C
Shaft & pin sealing asbestos-free
Swing check valve is tested as per DIN 3230,
(ČSN 133060, part 2).