Standard
[CURRENT]
2011-01
Stop valves for domestic water supply - Part 1: General requirements and tests for manually operated piston type gate valves of special design, gate valves and diaphragm valves, Technical rule of the DVGW
This standard applies to manually operated piston type gate valves of special design, gate valves and diaphragm valves with nominal diameters of up to and including DN 100, PN 10, which are ...