DS341X Expansion/ Flexible/Telescopic Butterfly Valve
Summary:
DS341X retractable butterfly valve has the function of automatically compensating the thermal expansion and contraction of pipeline for easy loading and unloading. It is suitable for the best device for regulating the flow rate and carrying the cut-off body on the industrial pipelines of petroleum, chemical industry, electric power, papermaking, water supply and drainage and municipal construction with the temperature below 425ºC and nominal pressure below 1.6MPa.
Main features:
1. Unique structure, flexible design, light weight, labor-saving, quick opening and closing.
2. The telescopic butterfly valve can not only compensate the thermal expansion and contraction caused by the temperature difference in the pipeline, but also provide convenience for the installation and replacement of the maintenance valve.
3. The sealing part can be adjusted and replaced, and the sealing performance is reliable.
Standard
Manufacturing standard: JB/ t8527-97, GB/T 12238-89.
Flange standard: gb9113-2000, GB/T 17241.6-1998.
Inspection standard: GB/T 13927-92.
| Main Technical Parameters |
| Nominal diameter DN(mm) |
50-2000 |
50-1600 |
| Nominal pressure (MPa) |
0.6 |
1.0 |
1.6 |
| Sealing test (MPa) |
0.66 |
1.1 |
1.76 |
| Strength test (MPa) |
0.9 |
1.5 |
2.4 |
| Suitable temperature |
Soft seal |
X:-40ºC~90ºC;Xf:-20ºC~200ºC |
| Hard seal |
Cast iron:-29ºC~425ºC Stainless steel:-40ºC~650ºC |
| Applicable medium |
Water, air, natural gas, oil and weak corrosive fluids |
| Leakage rate |
It conforms to GB/T 13927-92 standard |
| Drive way |
Worm gear transmission, electric, pneumatic, hydraulic |
| The Material of Main Parts |
| Parts |
Material |
| Body |
WCB /Stainless steel QT 450-10 |
| Disc |
WCB /Stainless steel QT 450-10 |
| Shaft |
2Cr13Stainless steel |
| Seal ring |
Rubber |
| Packing |
Flexible graphite |
| Main Outline and Performance Dimension |
Machining Process
Company Introduction
Zhitai Valve Co., Ltd is a member of Valve Association of Longwan District, is located in Longwan Central Industrial Zone, Wenzhou City. It'a professional technology company integrated with development, manufacturing, sales, and after-sales services of valve actuators and and self-controlled valves. Presently, our main products include: pneumatic actuators, pneumatic valves and pneumatic control valves; electric actuators, electeic valves and eletric control valves; automatic control products. Our products are widely applied in natural gas, electricity, petroleum, chemical, metallurgical, construction, pharmacy, paper, printing and dying. Zhitai series actuators and valves are the best choice for automatic fluid control engineering and equipment manufacturing. We sincerely welcome customers from home and abrode to visit us for supervision, communication and cooperation. It's a great honor for us to cooperate with you.
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