Two-way metal hard seal rotary pneumatic valve valve industry _ pneumatic components factory

Pneumatic pneumatic valve description of two-way metal hard seal rotary pneumatic valve: two-way metal hard seal rotary pneumatic valve is the valve industry pneumatic components factory research and development of a new energy-saving products, the product adopts the structure length, double eccentric structure of butterfly valve, pneumatic face seal deputy, by driving device drives the valve rod to rotate 90 °, synchronous drive the open-close part ( The disc) To rotate 90 °, the realization of opening and closing of the valve. I plant production of double metal hard seal rotary pneumatic valve sealing is reliable, flexible switch, low maintenance cost, are widely used in petroleum, petrochemical, chemical, electric power, mining, thermal and environmental protection, metallurgy, paper making, municipal engineering and other industries of water supply pipes, heating pipes and process piping. The sealing performance is good, two-way truncation, small volume, light weight, can be installed in any direction, adjustable, wear resistance, can be applied to medium containing solid particles. Two-way rotary pneumatic valve structure of metal sealing characteristics: (1) the valve body and disc casting using resin sand casting process, not only the casting quality is reliable, and the casting surface outline clear, beautiful, high dimensional accuracy. (2) on the principle of double eccentric wedge tight, through the drive mechanism to achieve the purpose of opening and closing, adjust, chocking, valve seat sealing surface and clapper sealing surfaces are hardfaced metal band contact seal and pneumatic surface along the closed valve seat valve gradually, has cut scraping the sweep function, effectively remove obstacles, structure and solid particles, realize the reliable seal. (3) after the seal failure, the user down pressure plate, replace or repair the seat can achieve new valve sealing effect, easy maintenance. (4) using DBB seating principle, seal structure, reliable sealing, can real two-way sealing. (5) seal USES metal hard seal, according to the different working condition can be found in the disc and seat sealing surface, spray welding different kinds of surfacing alloy, such as 13 cr, si too alloy, nickel base alloy, etc. , meet the corrosion resistance, resistance to abrasion, erosion, including working conditions of solid particles. 6. Two-way metal hard seal screw length of the structure of the pneumatic valve and butterfly valve, so the simple structure, small volume, light weight, small installation space needed. All landowners convenient operation, opening and closing rapidly, from full open to only need to rotate 90 °, fitted with electric actuator, pneumatic device, hydraulic device after combination, can achieve centralized control over a long distance. Today two-way metal hard seal rotary pneumatic valve in the opening and closing can quickly make the seal off, sharply reduce wear between the sealing surface, in the process of opening and closing seal between without friction, so long service life. Two-way metal hard seal rotary pneumatic valve technology parameters: nominal diameter: DN100 ~ DN3000, NPS4 ~ NPS60 nominal pressure: PN6 ~ PN40, Class150 ~ Class300 design standards: GB/T 12238, GB/T26146 structure length: GB/T12221, API609 flange standard: GB/T9113, HG/T20592, HG/T20615, EN1092 - 1:2002,ASME B16转椅。 5、ASME B16. 7 main body material: carbon steel, stainless steel, alloy steel such as pressure test: GB/T13927, API598: two-way flow head seal and pneumatic valve pneumatic valve structure theory