5 Valve Description
32 of 60
5.5.2.4 Pressure/temperature ratings
Table24: Test pressure and operating pressure
PN DN Shell test Leak test (seat) Permissible operating pressure [bar]
23)24)
With water
Tests P10 and P11 to
DINEN12266-1
Test P12, leakage rate
B to DINEN12266-1
[°C]
[bar] [bar] -20
25)
50 80 100 120 200 250
6 15-100 9 6,6 6 6 4 2 - - -
6 125-200 9 6,6 - 6 6 6 - - -
6/10/16 15-100 24 17,6 16 16 16 16 16 14 13
6/10/16 125-200 24 17,6 - 16 16 16 16 12,8 11,2
5.5.2.5 Materials
CuZn40Pb2
DN 15-100, PN 6
EN-GJL-250
DN 125-200, PN 6
EN-GJL-250
DN 125-200, PN 6/10/16
Table25: Parts list of DN 15-100 PN 6/10/16
Part No. Description PN DN Material Note
100 Body 6/10/16 15-100 CuZn40Pb2 2.0402
6/10/16 125-200 EN-GJL-250 5.1301
198 Plate 6 15-100 PPO-GFK plastics -
6/10/16 15-100 Stainless steel 1.4301
350 Valve disc 6 125-200 EN-GJL-250 with O-ring 5.1301
6/10/16 125-200 EN-GJL-250 5.1301
411 Joint ring 6 125-200 EPDM -
563 Guide pin - 15-100 A2 -
732 Holder - 15-100 Stainless steel 1.4301
950 Spring - 15-200 Stainless steel 1.4571
5.5.2.6 Function
This non-return valve is a spring-loaded check valve which closes automatically if fluid
flow is reversed. The valve consists of a single-piece, pressure-retaining body 100.
The functional unit consists of plate 198 and spring 950. Plate 198 is guided in and by
body 100. The position of plate 198 is determined both by the flow conditions and by
spring 950.
5.6 Strainers to DIN/EN
5.6.1 BOA-S