Technical description
ZK-D swing check valves are automatic check valves. They automatically prevent the reverse flow of the medium. The medium can flow in one direction only. These swing check valves are designed and manufactured to ensure maximum service life and reliability. They are suitable for liquids, gases and steam.
MATERIAL SPECIFICATION
Dual plate check valves are made from carbon and stainless steel. The material type can be adjusted according to the customer´s request to optimally suit the operating conditions.
BASIC STANDARDS FOR DESIGN
Basic design
API 6D, ASME/ANSI B16.34, EN 12 516-1
Building lengths
EN 558-1, EN 558-2, EN 12 982, ASME/ANSI B16.10
Flange dimension
EN 1092-1, EN 1759-1, ASME/ANSI B16.5, ASME/ANSI B16.47 A
Testing
EN 12 266-1, API 598
Pressure-temperature rating
ASME/ANSI B16.34, EN 12 516-1
Dimension of welding-on ends
EN 12 627, ASME/ANSI B16.25
Range DN (NPS ): 50 – 1200 (2″- 48″)
Range PN (CLASS): 10 – 400 (150 – 2500)
Operating temperature range: -196°C ÷ +550°C
Connection into piping:
Flanged, Welding-on, Wafer type
Control:
Automatically
