Mechanical Supplies
Butterfly Valves
Supplied by
About
- Wafer and lugged butterfly valves with EPDM or NBR liners, giving quarter-turn isolation in a fraction of the face-to-face length and weight of a gate valve. Lever, gearbox and actuator operation with an ISO 5211 top flange.
Application
The standard isolation valve on chilled water and condenser water from DN50 upwards, on riser branches, cooling tower lines and AHU coil connections where space between flanges is tight. Lugged bodies are used at the end of a line so the downstream pipe can be removed with the valve still holding pressure.
Standards & Reference 5 cited
EN 12266-1
Pressure testing of metallic valves: the shell and seat tests a valve passes before it leaves the factory.
EN 558
Face-to-face and centre-to-face lengths for valves in pipeline systems: the dimension that decides whether a replacement valve fits the existing gap.
EN 1092-1
Dimensions and pressure/temperature ratings for circular steel flanges, designated by PN. What makes a valve bolt up to the pipework it was specified for.
Also citedEN 593ISO 5211
Request for quotation
Get a price for this item
Send the quantity and the project. Our sales engineers reply with a quotation, usually within one working day.
More in this line
General Valves
5 products
View All
