Fire retardant anti-static pneumatic valve valve industry structure _ pneumatic components factory

Pneumatic pneumatic valve description of fire retardant anti-static pneumatic valve: pneumatic components factory production of fire retardant anti-static pneumatic valve valve industry security clearance to snuff out the fire accident happened during dynamic valve, in order to avoid the pipe leakage of inflammable or other fluid to prevent fire accidents and environmental pollution, widely applied to petroleum, chemical industry, etc. Fire retardant anti-static technology parameters of pneumatic valve: national standard nominal pressure type 1. 0 ~ 4. DN15 ~ 0 mpa nominal size 200 mm American standard nominal pressure Class150 ~ Class600 caliber 1/2 'to 8' in product design in line with the GB/T12237 with ASME B16. 34 and API608 specification requirements. Fire prevention design can meet the demands of API607 fire test specification. Fire retardant anti-static pneumatic valve structural characteristics: (1) body for the stainless steel material, use silicon sol process, precision casting, valve castings dimension precision is high, can reach CT4 ~ 6 grade, the surface roughness of Ra6. 3 ~ 12. 5, the body appearance neat, beautiful, no casting defects. (2) valve pneumatic material for stainless steel forgings, solid core body, compressive ability is strong, not deformation, so as to improve the sealing performance of products, pneumatic valve surface nitriding according to the requirement of the customers, nickel-plated phosphor or spraying hardening treatment such as tungsten carbide. (3) stem for explosion protection and anti-static structure design, through the conductive device installed on the valve stem, springs and steel balls can effectively valve of pneumatic and PTFE sealing ring due to factors such as friction produced by electrostatic export, ensure the safety of pipeline. (4) stem seal with ptfe V by expanded graphite packing or high temperature 1200 ℃, while increasing multiple sealing o-ring and stem seal form, v-shaped combination packing seal, prestressing force required for the installation of the two on the top of the V type packing to install butterfly provide proof, due to the butterfly's own tension, even in the valve due to the frequent operation and make the V type packing, wear conditions, without artificial adjustment, can also provide enough pre-tightening force, to ensure the effect of the valve stem seal, protection against external leakage. 5 double seat fire prevention structure design, when the fire broke out, the norm such as ptfe soft seal seat will be burning boil, losing support and sealing performance, the floating valve pneumatic medium pressure in pipe, from moving on to the downstream, and downstream di two metal seated directly contact, to prevent leakage. 6 sealing gasket between the body and bonnet adopts teflon or expanded graphite of high temperature of 1200 ℃, and the design of the body and bonnet retains the metal to metal, the bolt lock to both direct contact, as part of the sealing effect, when the fire broke out, even because of high temperature sealing gasket failure, also don't appear outside fluid leakage. All landowners manual pneumatic valve on the operating handle is designed to prevent wrong operation of limit and padlock hole, turn the handle need to increase the limit to operate the valve, to achieve the required position down limit, limit automatic sliding mass to limit slot in the body, the handle cannot turn, prevent operation error, at the same time clients also can according to need by padlock hole in the valve to the valve yoke, ensure the use of valves in the correct position. Today in all kinds of actuators, ASI5211 platform design is convenient for installation, such as electric, pneumatic, can not only meet the demand of simple driver, can meet the needs of the remote control. : Q641F/H pneumatic cut pneumatic valve ( O type pneumatic body) Q641F pneumatic cut off the pneumatic valve