Product Introduction
Soft seat concentric butterfly valves widely apply to all kinds of industrial on-off control system. Compared to normal global valve and ball valve, it has many advantages, like light weight, low cost, etc. With rapidly development of rubber material industry, soft seat butterfly valve is not only used to all kinds of water draining system, but also replaces to some flow control systems by steps. It is one of the most economic valves under low and medium pressure. 

Technical Specification
Design Standard: API609, ASME B16.34
Size Range: 2"-72" (DN50~DN1800)
Pressure Rating: 85-232Psi (PN6-PN16, ANSI125-150)
Body Material: Ductile Iron, Carbon Steel, Stainless Steel
End Connection: Wafer, Lug, RF
Operation: Lever, Gear, Pneumatic, Electric, Hydraulic
Temperature Range: -35℃ to +200℃
Rubber Material: EDPM, NBR, VITON

Rubber Seat Temperature Range
EDPM: -35℃ to +135℃
NBR: -20℃ to +100℃)
VITON -20℃ to +200℃

Normal Application
Water Pipeline, Refinery, Power Plant, Shipbuilding, Petrochemical, Paper Industry, etc.

Product Features
-Top Flange: according to ISO 5211
-Anti-blowout Shaft: according to API609 & ASME B31.3
-Low opening & closing torque: reduce torque by self-lubricating bearing
-No pin: with double-stem and no pin to resist leakage.
-Valve seal: packing seal and three stem seals to resist leakage

Picture Show 

Delivery, Payment and Service
Payment Terms: Normally 30% down payment before production, 70% balance before delivery.
Warranty: 12 months after installation or 18 months after shipment whichever comes first.
Delivery time: Subject to stock availability at placement or order and factory workloads.
Delivery method: By Express, or by air, or by sea, as your request.
Delivery port: Shanghai or as your request.