PRODUCT
Wafer type high performance triple offset wafer butterfly valve manufacturers
Size Range : DN40-DN600
Body Construction : Lug /wafer /Flange
Temperature : -40℃-275℃
Pressure : PN10/PN16/PN25/PN40/150LB/300LB
Lever of leakage : VI Zero leaks
Body : WCB / CF8/8M , CF3M /2507/1.4529
Disc : WCB / CF8/8M , CF3M /2507/1.4529
Stem :17H-4
Seat : PTFE /RPTFE / Stainless steel
Application : petroleum/ chemical /vacuum/food /medicine/high temperature and high pressure and low temperature anti - corrossion conditions
The wafer-type metal hard-seal butterfly valve The electric hard-seal butterfly valve adopts a three-eccentric structure. The valve seat and disc sealing surface are made of different hardness and stainless steel. They have good corrosion resistance and long service life. This valve has a two-way sealing function. , the product complies with the national GB/T13927-92 valve pressure test standard.
| Main Part Material | |
| Part name | Material |
| BODY | Cast iron, cast steel, stainless steel, chrome-molybdenum steel, alloy steel |
| DISC | Cast steel, alloy steel (hard chrome plated), stainless steel, chrome-molybdenum steel |
| RING | Stainless steel, polyol, anti-wear materials |
| SHAFT | 2Cr13, 1Cr13 stainless steel, chrome-molybdenum steel |
| PACKING | Flexible graphite |
| Nominal diameter | DN | 50～1200 | ||||
| Nominal pressure | PN | 0.6 | 1 | 1.6 | 2.5 | 4 |
| Test pressure | Strength test | 0.9 | 1.5 | 2.4 | 3.75 | 6 |
| Sealing test | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 | |
| Airtightness test | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
| Flow medium | Water, steam, oil, acid corrosion, etc. | |||||
| Temperature | WCB：-29℃～425℃ Stainless steel ：-40℃～<600℃ | |||||
The wafer-type metal hard-seal butterfly valve The hard-seal butterfly valve adopts a three-eccentric structure. The valve seat and disc sealing surface are made of different hardness and stainless steel. They have good corrosion resistance and long service life. This valve has a two-way sealing function. , the product complies with the national GB/T13927-92 valve pressure test standard. The electric wafer-type metal hard-seal butterfly valve adopts a precision J-shaped elastic sealing ring and a three-eccentric multi-layer metal hard-seal structure. It is widely used in metallurgy, electric power, petrochemical industry, water supply and drainage, and municipal construction where the medium temperature is ≤425°C. It is used on industrial pipelines such as to regulate flow and carry and break fluids. The valve adopts a triple eccentric structure. The valve seat and the disc sealing surface are made of different hardness and stainless steel. It has good corrosion resistance and long service life. The electric hard-seal butterfly valve has a two-way sealing function. The product complies with the national GB/T13927- 92 Valve Pressure Test Standard.
| standard specification | |
| API609 | Flange type clamp type butterfly valve |
| MSS SP-25 | Valve standard marking system |
| MSS SP-44 | Steel pipe flange |
| MSS SP-55 | Quality standrad for steel casting |
| MSS SP-61 | Pressure testing of steel valves |
| MSS SP-69 | Terminology for valves and connectors |
| ANSI B31.3 | Chemical plant and refinery piping |
| ANSI B31.8 | Gas transpor sation and distribution pipe system |
| API 598 | Valve inspection and testing |
| ANSI B16.10 | Face to face and end to end dimensions of ferite valves |
| ANSI B16.5 | Pipe flanges and flanged fittings |
| ANSI B16.47 | NPS26-NPS60 large dameter steel flange |
| ANSI B16.34 | Flange end and butt welding end steel valves |
| ANSI B 31.1 | Power plant pipes |
| ANSI B 31.4 | Anhydrous ammonia and alcohol, system hydrocarbon transportation |
| ANSI/FCI 70-2-1991 | Control valve seat leakage |
