Loading Port:China main port
Payment Terms:TT OR LC
Min Order Qty:10 pc
Supply Capability:1000 pc/month
Features
The butterfly valve has the ideal sealing track since following three-eccentric principle, without friction and interference between sealing seats, and also adopts the proper material, which make the butterfly valve have the reliable sealing ability, corrosion resistant, temperature resistant and wearing resistant. The main features as bellow:
1.Small open torque, flexible and convenient, laboursaving and energy economised.
2.Three-eccentric structure to make the disc more and more tighter, with reliable sealing ability and no leakage.
3.High Pressure resistant, corrosion resistant, wearing resistant, long lifetime.
Application Standards
Design standard: CJ/T 261-2007 ; GB/T12238-89
Flange standard: GB/T9113.1-2000 ; GB/T9113.2-2000 ; GB/T9115.1-2000 ; GB/T9115.2-2000 ; HG20596-97
Face-to-face: GB/T12221-1989
Pressure test: GB/T13927-1992 ; JB/T9092-1999
Main Technical Parameter
Nominal Diameter | DN(mm) | 50~2000 | 50~500 | |||
Nominal Pressure | PN(MPa) | 0.6 | 1.0 | 1.6 | 2.5 | 4.0 |
| Intensity Test | 0.9 | 1.5 | 2.4 | 3.75 | 6.0 | |
| Seal test | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 | |
| Air Test | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
| Leakage | <0.1 XDNmm3/s (Conforming to GB/T13927 Standard) | |||||
Applicable Temperature | Carbon Steel: -29oC ~ 425oC / Stainless Steel: -40oC ~ 600oC | |||||
Applicable Medium | Air / Water / Steam / Coal Gas / Oil Product / Alkali / Saline with low corrosive service | |||||
| Method | Worm gear / Pneumatic / Electric | |||||
Material for main parts
| Parts Name | Material |
| Body | Castiron / Stainless steel / Cr-Mo steel / Alloy steel |
| Disc | Cast steel / Alloy steel / Stainless steel / Cr-Mo steel |
| Seats | Stainless steel / Multi-layer asbestos with temperature resistant |
| Stem | 2Cr13 / Stainless steel / Cr-Mo steel |
| Bearing | 304 nitrification Austenite stainless steel / Cr-Mo steel |
| Packing | Flexible graphite |
Please consult customer service before placing an order( in order to confirm with size and material of the relevant product).
