Technical description
SDV valves are controlled, shut-off or regulating valves. They are designed to stop, regulate or allow the flow of the medium by external operation, either manually or via the installed drive. The medium can flow in one direction only. They are mainly suitable for chemicals and petrochemicals, liquids, gases and steam.
MATERIAL SPECIFICATION
Diaphragm globe 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
ASME/ANSI B16.34, EN 12 516-1
Building lengths
EN 558-1, ASME/ANSI B16.10
Flange dimension
EN 1092-1, ASME/ANSI B16.5
Testing
EN 12 266-1
Pressure-temperature rating
ASME/ANSI B16.34, EN 12 516-1
Dimension of welding-on ends
EN 12 627, ASME/ANSI B 16.25
Range DN (NPS ): 15 – 200 (1/2″- 8″)
Range PN (CLASS): 100 – 400 (150)
Operating temperature range: -196°C ÷ +550°C
Connection into piping:
Flanged, Welding-on
Control:
Hand lever, Hand lever with gearbox,
Electric actuator, Pneumatic actuator,
Bare shaft, Electric actuator with gearbox,
Without control
Top flange dimension – EN 5211
