SD341H/X Executive standard of telescopic flange butterfly valve
| Design and manufacture | Flange connection | Structural length | Test and inspection |
| GB/T12238¡¢JB/T8527 | GB/T9113¡¢JB/T79¡¢HG/T20592¡¢EN1092-1/2¡¢ASME B16.5/B16.47 | GB/T12221 | GB/T13927 |
SD341H/X Main technical parameters of telescopic flange butterfly valve
| Nominal diameter | DN(mm) | 50~2000 | ||
| Nominal pressure | PN(MPa) | 0.6 | 1.0 | 1.6 |
| Test pressure Ps(MPa) | strength test | 0.9 | 1.5 | 2.4 |
| Sealing test | 0.66 | 1.1 | 1.76 | |
| Airtight seal test | 0.6 | 0.6 | 0.6 | |
| Applicable temperature | ¡Ü120¡æ | |||
| Applicable media | Air, water, steam, gas, oil | |||
| Driving form | Worm gear drive, pneumatic drive, electric drive, hydraulic drive | |||
SD341H/X Material of main parts of telescopic flange butterfly valve
| Part name | Material Science |
| valve body | Cast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel |
| Disc | Cast steel, stainless steel, chromium molybdenum steel, alloy steel, dual phase steel |
| valve seat | Stainless steel, butt welding Stellite, etc |
| seal ring | Stainless steel and high temperature resistant asbestos board are combined into multi-layer |
| Stem | 20cr13, 1Cr13 stainless steel, chromium molybdenum steel, special materials |
| axle sleeve | Austenitic stainless steel, 304 nitriding |
| filler | Flexible graphite, PTFE |
| Packing gland | Cast steel, stainless steel |
| Bracket | Cast steel, stainless steel |
Product use
Telescopic butterfly valve is widely used in food with temperature ¡Ü 80 ¡æ and nominal pressure ¡Ü 1.6Mpa. It is used to regulate the flow rate and cut off the medium on the water supply and drainage and gas pipelines of medicine, chemical industry, petroleum, electric power, light textile and papermaking.
Product features
1. The design is novel, reasonable, unique in structure, light in weight, convenient in operation and quick in opening and closing;