Long distance pipeline pneumatic valve welding pipe pneumatic valve _ _ _ American standard pipe pneumatic valve pneumatic components factory valve industry

Description of long-distance pneumatic pneumatic valve pneumatic valve: long distance pipeline pneumatic valve is designed for natural gas, petrochemical, oil field, chemical industry, low temperature, feed processing industry developed in the areas of pipeline, and the series pneumatic valve is suitable for the valve diameter for NPS6 to NPS42 inches, pressure levels of 150 pounds to 1500 pounds of various pipe, in the performance in full compliance with the relevant provisions of the American petroleum institute API 6 d standard. Long distance pipeline working principle of the pneumatic valve, pneumatic valve of long distance pipeline design, reliable sealing pneumatic valve as hard and soft double seal structure of zero leakage, ensure effective truncation of downstream end of the pipe, pneumatic forging materials, the surface chemical plating of nickel phosphorus treatment, surface hardness HV > 800, finish to mirror, and the seat of small friction coefficient, considering the metal particles in the medium influence on zero leak sealing, pneumatic of PTFE metal or rubber seal as the primary sealing, pneumatic metal to metal seating as a secondary seal, and to prevent foreign body in once the pipeline damages to the seat, the seat is equipped with an emergency sealant injection system, can obtain temporary sealing requirements; DBB double block and discharge function both pneumatic valve is in open or closed, the valve cavity pressure discharge, upstream and downstream side seat for deadline at the same time, from the drain valve and allow for the online pneumatic valve seat sealing performance test, without affecting the pipeline operation; Piston effect seat design, the inlet and outlet valve seat adopt symmetrical two-way sealing design, the media since the seal structure of piston can be design according to customer needs into single piston effect, since the discharge pressure seal structure and double piston effect do double seal structure; Single cavity pressure is greater than the rest of piston effect that swim line pressure, automatically pushed open the outlet valve seat, the cavity pressure automatic discharge to the downstream pipeline; Double piston effect that when chamber pressure is greater than the downstream pipeline pressure, the inlet and outlet can keep the seal at the same time, but of cavity pressure over pressure level corresponding value of 1. 33 times, when the pressure safety relief valve automatically by the lumen of the emissions; Stem with design, after heat treatment of high strength and high quality of the valve stem and pneumatic precise fit body, and all of the valve stem has launched the design, can prevent abnormal situation stem, thus effectively avoid the happening of such accidents, the launch of the stem design in accordance with ASME B16. 34 standards; Pipeline pneumatic valve design for fire safety fire prevention structure, once the fire or four fluorine rubber sealing ring of burned or softening, metal seated under medium pressure and spring force can still be effective against the pneumatic sealing effect, comply with the provisions of the API607, API6FA fire-proof test; Anti-static structure, aerodynamic body contact with the seat nonmetallic material, pneumatic rotating friction with the seat may be produced electrostatic, anti-static structure make the pneumatic volume production of the electricity through the valve stem is passed on to the body, so as to achieve the aim of eliminating electrostatic accumulation, under 24 VDC resistance value is less than 10 o; Pipeline pneumatic valve flange connection, two types, all welded flange connection pipe pneumatic valve generally consists of body and about connecting, connecting with the valve body are connected by a bolt, the valve body and connecting can adopt fire prevention design satisfies the requirement of fire protection standard; All welded pipe pneumatic valve body to the barrel structure, connecting with the valve body by forging steel welded together, forging material and the junction surface of weld in the installation requirements of the nondestructive flaw detection ultrasound examination, can achieve better performance and service life of the moment. Welding line of the pneumatic valve features: 1, the pipeline pneumatic valve for double sealing structure, ensures zero leakage. 2, seat USES the piston effect. 3, the valve stem design for the design. 4, have fire prevention, anti-static function. American standard pipe pneumatic valve design standards: design and manufacturing: API 6 d, API608 or ANSI B16. 34 structure length: ANSI 6 d, ANSI B16. 10 flange standards: ANSI B16. 5 pressure test: API 6 d, API598 pipeline technology parameters of the pneumatic valve: diameter: 6 'to 42' pressure: Class150 ~ Class1500 material: WCB, A105, A182, F316 temperature: - 28 ℃ ~ + 300 ℃ medium: oil, natural gas, coal gas, water and coal slurry and other pneumatic components factory specializing in the production of long distance pipeline pneumatic valve industry valve manufacturers, customers can choose according to the pipe connection way of welding pipe pneumatic valve, according to the pipe connection standard can choose American standard pipe pneumatic valve; If you need to configure the pneumatic valve actuator, pneumatic valve is equipped with triple pieces, or configuration of electric valve actuators, is equipped with electric explosion-proof device, as well as the pipeline pneumatic valve body materials, the use of relevant technology such as temperature, nominal size, nominal pressure parameters, so that our sales staff for selection and quotation. : pneumatic valve _ since all welded filter type welding pneumatic valve buried type pneumatic valve pneumatic valve _ _ buried type double tossing in pneumatic welding gas solenoid valve _