Handan Shengnada New Material Technology Co., Ltd.
SND FOUNDRY, YOUR RELIABLE PARTNER IN SIDE!
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Flange Type Three Eccentric Multi Layer Hard Seal Butterfly Valve 18 Months Warrantly
Uses
The valve system to absorb, digest foreign technology, using three-dimensional eccentric multi-levelmetal seal structure, applicable to medium temperature = 550 ℃ metallurgy,electric power, petrochemical.as well as to the drainage pipe for regulating fluid flow and cut off the best device.
Features
1. The butterfly plate seal ring is a soft and hard laminated metal sheet, which has the dual advantages of metal hard seal and elastic seal, and has excellent sealing performance regardless of low or high temperature conditions.
2. The three-dimensional eccentric structure is adopted, and the valve seat and the butterfly plate have almost no friction, and the sealing function becomes tighter as it is closed.
3. The valve body sealing surface adopts surfacing stainless steel and cobalt-based hard alloy, and the sealing surface is resistant to wear and has a long service life.
4. The structure is unique, the operation is flexible, labor-saving, convenient, and not affected by the high and low pressure of the medium. The sealing performance is reliable and the service life is long. The usual double eccentric butterfly valve is shown as b (deviation from the center of the pipeline) and a (deviation from the center line of the cover), the purpose is to reduce the friction between the valve seat and the seal of about 15° stroke.
HPV adds a unique eccentric angle B. The inclined cone not only overcomes all contact friction between the seal and the valve seat during the opening and closing of the valve, thereby increasing the service life, but also can adjust its sealing pressure ratio arbitrarily by changing the external torque, making the seal more reliable and never appearing.
Main Performance Specifications
| Nominal size | DN(mm) | 50~2000 | 50~500 | |||
| Nominal Pressure | PN(Mpa) | 0.6 | 1 | 1.6 | 2.5 | 4 |
| Test Pressure | Strength test | 0.9 | 1.5 | 2.4 | 3.75 | 6 |
| Seal test | 0.66 | 1.1 | 1.76 | 2.75 | 4.4 | |
| Gas seal test | 0.6 | 0.6 | 0.6 | 0.6 | 0.6 | |
| Leakage | ＜0.1×DNmm3/s(in line with GB/T 13927-92 standard | |||||
| Suitable temperature | Stainless steel,chrome molybdenum steel:-40℃-550℃ | |||||
| Applicable medium | Air,water,steam,gas,oil and acid,alkall,salt with a weal corrosive media,etc. | |||||
| Drive type | Worm worn transmission,electric transmission | |||||
Who we are
SND has been producing and selling metal goods for about 20 years.By using manufacturing techniques including sand casting, lost wax casting, lost foam casting, and precision machining, the company has been supplying goods made of materials like cast iron, steel, stainless steel, aluminum, etc. Additionally offered are surface finishing and assembly services.
Our company has successfully created products in a variety of industries, including automotive, rail transportation, agricultural machinery, chemical, energy, electricity, water, air compressor, and construction, thanks to our consistent efforts over the past few years.
Our factories' ISO9001-accredited quality control systems guarantee a consistent and dependable quality for each and every component.
Spectrometer, ultrasonic, magnetic, permeability, elongation, tensile/yield strength, and other inspections are carried out as part of routine production procedures.
