SS 304 Manual Double Seat Mixing-Proof Butterfly Valve (type B)

Applications:
Double seat butterfly valves can be used in food-processing, pharmacy and chemical industries. Leakage butterfly valve offers an easy and safe separation of products and prevents accidental mixing in case of gasket failure. The most usual applications are the ones that requires safe separation of the product and CIP solution in a single point ( not in manifolds), or at the end of a manifold( e.g CIP return) or entry of a CIP solution into a tank (through a spray ball).

Materials:
Parts in contact with the medium AISI 316L/1.4404
Other parts: AISI 304
Gasket:EPDM FDA 177.2600
Internal surface finishing: Ra≤0.8μm
External surface finishing: CNC machined

Options:
Gaskets: NBR, MVQ &FPM
Connections: SMS, RJT, DIN, 3A, ISO
Air/air pneumatic actuator
Inductive position sensors
C-TOP control head
Position sensors

Design and features;
Compact and robust design.
Interchangeable half-bodies ( any connection type)
Connections:
Weld DIN 11850
Clamp DIN32676
Thread DIN 11851
Weld ASME BPE
Clamp ASME BPE

Specification:
Operating principles:
It provides double safety: the two butterfly valves are simultaneously actuated by only one actuator. When the two valves are closed, there is a chamber between them. The chamber is under atmospheric pressure as it open to the exterior, thus, in case of failure of any of the two gaskets, leakage of the liquid product will indicate any possible mixing of products. The state of the gaskets is supervised by means of either fo the leakage detectors. The other detector (superior) controls the entry of the cleaning solution to prevent any kind of conmination in the chamber. These 2 leakage detectors provide optimal protection and enable cleaning of the intermediate chamber.