Technical description
K84 (floating seats and trunnion mounted ball) valves are controlled shut-off valves. They are designed to stop or allow the flow of the medium by external operation, either manually or via the installed drive. The ball valves allow the medium to flow in both directions. Their construction is designed to prevent the build-up of sediment in the flow channel which would otherwise hinder the valve operation. These ball valves are designed and manufactured to ensure maximum service life and reliability. They are mainly suitable for chemicals and petrochemicals, liquids, gases and steam.
MATERIAL SPECIFICATION
Ball 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 608, API 6D, ASME/ANSI B16.34
Building lengths
ASME/ANSI B16.10, EN 558-2, EN 12 982
Flange dimension
ASME/ANSI B16.5, ASME/ANSI B16.47 A, EN 1759-11
Testing
API 598, API 6D, 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 B16.25
Special
NACE MR 01-75
Range DN (NPS): 6 – 500 (1/8″ – 20″)
Range PN (CLASS): 10 – 400 (150 – 2500)
Operating temperature range: -196°C ÷ +400°C
Connection into piping:
Flanged, Welding-on, Combinated
Control:
Hand Wheel, Hand Wheel with gearbox,
Electric actuator, Pneumatic actuator,
Hydraulic actuator, Without control
Top flange dimension – EN 5211
