Technical description
DE BTF butterfly valves are controlled shut-off valves. They are designed to stop or allow the flow of the medium by external operation, via either the handwheel or the installed drive. The medium can flow in one direction only. These butterfly valves are designed and manufactured to ensure maximum service life and reliability. They are suitable for liquids, gases and steam.
MATERIAL SPECIFICATION
Butterfly 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
EN 12 516-1, EN 12 516-2
Building lengths
EN 558-1
Flange dimension
EN 1092-1
Testing
EN 12 266-1
Pressure-temperature rating
EN 12 516-1
Range DN (NPS ): 40 – 400 ( 1 1/2″- 80″)
Range PN (CLASS): 12,5 – 40 (150 – 300)
Operating temperature range: -20°C ÷ +140°C
Connection into piping:
Flanged, Wafer
Control:
Hand Wheel, Hand wheel with gearbox,
Electric actuator, Pneumatic actuator,
Without control
Top flange dimension – EN 5211
