Pressure seal tilting disc check valves Velan Vietnam
Hãng sản xuất: Velan
0909 653 371
Pressure seal tilting disc check valves Velan Vietnam
Overview
Category: Gate, globe, and check valves
Product line: Pressure seal (forged and cast steel) valves
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Size range(s)
NPS 2 - 24 (DN 50 - 600)
Pressure rating
ASME Classes
600 - 2500Standard connections
Socket weld, Butt weld
Features and benefits
● Velan's proven pressure seal design.
● Unique cage unit: entire seat-hinge-pin-disc assembly can be tested outside the valve before seal welding into the body. Eliminates pin seal leakage.
● Easy in-line service.
● Efficient operation. The hinge pin located near the center of gravity allows the conical seating face of the disc to move out and into the seat rapidly without sliding or wear. The disc pivots through a small arc preventing backflow and “water hammer”.
● Superior tightness: conical, lapped-in hardfaced seating is self-aligning. Valve can be used even in vertical piping with flow up.
