Product

Ventilation Butterfly Valve

Specification

Size: NPS 2”-8”
Pressure: 150LB
Body Materials: Cast Iron/Ductile Iron
Seat Materials: EPDM / NBR/ VITON / PTFE
Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
Suitable Medium: air, Sewage, steam, gas, oil, etc

Main Parts Material:

Part

Material

Body

WCB,QT450

Disc

WCB,QT450

Shaft

2Cr13

O ring

EPDM / NBR/ VITON / PTFE

Packing

Flexible graphite