Butterfly’s valve of off-centre of high-temperature two-way hard sealing three of integral high pressure

Feb 7th, 2012

Brand: Other

Name: Butterfly’s valve of off-centre of high-temperature two-way hard sealing three of integral high pressure

Type: DN100~DN3600

About products:

Off-centre butterfly’s valve of high-temperature two-way hard sealing three of integral high pressure is that technical staff of our factory pass the optimization design, includes the high-performance metal hard sealed butterfly’s valve of the national patent. Have adopted ” Oblique to put the radial dynamic equilibrium of the oval butterfly’s board and seal the system ” ,Have realized reliably butterfly’s valve seals zero to let out

The products are detailed:

First. Product introduction

Off-centre butterfly’s valve of high-temperature two-way hard sealing three of integral high pressure is that technical staff of our factory pass the optimization design, includes the high-performance metal hard sealed butterfly’s valve of the national patent. Have adopted ” Oblique to put the radial dynamic equilibrium of the oval butterfly’s board and seal the system ” ,Realize butterfly valve seal, leak by zero, it is really with international leading level Hi-Tech new product to be reliable. After this product goes into operation group by group, create good economic benefits and social benefit, and as substituting with country stocking the products, is selected for use in a large amount by every enterprise outside China, is received by the masses of old and new users favourably deeply, worth the quality product which you highly trust.

The intersection of butterfly and board of valve this in the course of opening and closing, realize butterfly board seal circle and having, slipping, gritting the intersection of & and middot between the the intersection of valve and the intersection of flat and sealed surface; The card was crowded, the angle of pressure on the sealed surface is greater than gritting the angle, have adopted ” The dynamic equilibrium of the radial is sealed ” Design, extremely low that butterfly’s board opens resistance. Open and close the intersection of butterfly and board seal along the intersection of 360& and deg in the course; Each point of circumference can be finished fast in the twinkling of an eye, keep in touch piecemeal and break away from piecemeal. Can separate to seal to open, realize and close and contact identical sealed movements automatically fast and accurately.

Regulating multi-level & middot; Because the whole the intersection of metal and hard sealed the intersection of butterfly and valve seal piece adopt, seal again more and whole the whole metal seal, process oval section into seal ring through high-accuracy machinery, it with the intersection of valve and the intersection of flat and metal seal make up, seal pair. Such sealed structure, produce plasticity to be out of shape under high-pressure operating mode, under the high temperature or low-temperature operating mode, it is annealed not to exist and press the stress, weld the stress, elasticity or grips the bad brittle rupture phenomenon, solve traditional butterfly completely valve seal structure to be unreasonable to cause disadvantage that leak, raise the valve seal dependability greatly.

The whole complete metal that we designed seals the pattern 850 ℃ ultra-temperature operating mode, under producing the operating mode of one hundred sheets of strong water at ℃400, the advantage is unusually outstanding, does not deform, sealing the surface is not cut cutting, keep good sealing too.

Determined the regulating hard sealed butterfly’s valve opens the torsion as about 1/3 of the traditional structural butterfly’s valve by the experiment, service life is 5~8 times that of hard sealed butterfly’s valve of the tradition.

Two. Applicable scope

Valve this suitable for high, middle, low pressure, high temperature, make closed seal installation, reduce expenditure device and regulate the device in the pipeline of low temperature. Extensively suitable for trades such as petroleum, chemical industry, metallurgy, mine, electricity, energy, traffic, farmland, water conservancy, environmental protection, architecture, medicine, living beings,etc.. Very applicable sealing requires stricter operating mode, such as the gas piping, applicable water, vapour, oil, air, the intersection of dust and the intersection of angry, nitric acid,etc. and corrosivity medium.

Use temperature – 196 ℃ 850 ℃, working pressure PN0.6 –10Mpa or 150& mdash; 160 pounds. This valve can well be replaced cumbersomely, costly floodgate valve, stop valve, ball valve, choke valve, and as substituting with country stocking the products.

Three. Applicable standard of butterfly’s valve

GB standard butterfly’s valve

Design and make and confirm and press GB12238-89; Regulation of JB/T8527-1997.

The structural length is according to the regulation of GB12221-89, double flange is connected and made according to the short series, the clash type connects DN40 65, DN1400 2000 according to the long series, DN80 is 600 according to hitting the series, DN700 makes according to the short series 1200, (greater than or equal to 4.0Mpa and quote MSS SP-68 standard among them) . According to the long series of flange to the welding type. The flange connects size according to GB/T9113.1-2000, GB/T9113.2-2000 standard and GB9113.8-1988 standard. The valve is examined and tested according to the regulation of GB/T13927.

U.S.A. marks one pound of butterfly’s valves and carries out the standard:

· Design and make confirming it according to API609 lug and regulation of the flat butterfly’s valve

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