China GB Marine Double Flanged Butterfly Valve with Worm Gear

China GB Marine Double Flanged Butterfly Valve with Worm Gear:

 

Design Standard: ISO
Size: DN50-DN1200
Working Pressure: 1.0Mpa,1.6Mpa
Operation Type: Lever or Worm Gear

Main Material:

GB Marine Double Flanged Butterfly Valve with Worm Gear

1-Body: Cast Iron, Ductile Iron, Cast Steel, Bronze, Stainless Steel, Aluminum Alloy.
2-Stem: Stainless Steel
3-Disc: DI or WCB with galv, Stainless Steel, Bronze
4-Gear: Ductile Iron
5-Seat: NBR, EPDM,CR,FKM,VITION,PTFE
6-Busing: PTFE
7-O ring: NBR
8-Pin: Stainless Steel

The Service Temperature for Seat Material:

Rubber Seat Material	Service Temperature range ℃	Kind of Fluid
NBR	0-70	sea water, fresh water, bilge, ballat,liquefied gas,lubricating oil,fuel oil,cargo oil,hydraulice oil
CR	0-70	air
EPDM	0-120	sea water, fresh water, acid gas
FKM	0-90	cargo oil

The flange size is manufactured according to ISO, JIS, GB, DIN standard.

The measruement/size may be different between the table and goods delivered, please check with us when order placed.