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Pneumatic explosion-proof flanged ball valves
Product serial number
1
Product description
Parameters
The pneumatic fluorine-lined ball valve uses a ball with a round through hole as the opening and closing parts, and the ball rotates with the valve stem around the centerline of the valve body to realize the opening and closing of the valve. The special molding process is used to make the sealing surface dense and good, and the V-type PTFE packing combination makes the valve achieve zero leakage; The ball and the valve stem are cast as a whole, which makes it possible for the valve stem to rush out of the pressure bearing part due to pressure changes, and fundamentally ensures the safety in use; It adopts all-plastic lining process, which is resistant to strong corrosion of media.
Pneumatic explosion-proof ball valves are mainly explosion-proof electrical accessories
Limit switches and solenoid valves need to be explosion-proof, and the explosion-proof level can be selected according to the on-site working conditions.
It is divided into explosion-proof, pouring explosion-proof, explosion-proof, intrinsically safe explosion-proof, etc
The main lining material of fluorine-lined ball valve is fluoroplastic
Polyperfluoroethylene FEP (F46)
Applicable medium: any organic solvent or reagent, dilute or concentrated inorganic acid, alkali, ketone, aromatic, chlorinated hydrocarbon, etc.
Operating temperature: -85~150
Features: The mechanical, electrical and chemical properties are basically the same as those of F4, but the outstanding advantages are high dynamic toughness, excellent weather resistance and radiation.
Polypropylene: RPP
Applicable medium: aqueous solution of inorganic salts, dilute or concentrated solutions of inorganic acids and alkalis.
Operating temperature: -14~80
Features: One of the lightweight plastics, its yield, tensile and compressive strength, hardness are better than low-pressure polyethylene, has a very prominent rigidity, good heat resistance, easy to form, and cheap. Dynamic resistance, fluidity, flexural elasticity after modification.
PVC: Rigid) PVC
Applicable medium: water-resistant, concentrated alkali, non-oxidizing acid, chain hydrocarbon, oil and ozone, etc.
Operating temperature: 0-55
Features: high mechanical strength, excellent chemical stability and dielectric properties, good oil resistance and anti-aging properties, easy to weld and bond, low price.
PTFE(F4)
Medium: strong acid, strong alkali, strong oxidant, etc.
Operating temperature: -200~180
Features: It has excellent chemical stability, high heat resistance, cold resistance, low friction coefficient, and is an excellent self-lubricating material, but has low mechanical properties, poor fluidity, and large thermal expansion.
Polyolefins: PO
Applicable medium: various concentrations of acid and alkali salts and some organic solvents.
Operating temperature: -58~80
Features: It is the world's ideal anti-corrosion material, and has been widely used in the lining of large equipment and pipe fittings in rotational molding.
Soluble PTFE PFA
Medium: Medium: strong acid, strong alkali, strong oxidant, etc.
Operating temperature: -50-180
Features: It has excellent chemical stability, high heat resistance, cold resistance, low friction coefficient, and is an excellent self-lubricating material, but has low mechanical properties, poor fluidity and large thermal expansion. The performance is better than that of F4, and the color is transparent and white.
Pneumatic actuators: double-acting, single-acting (normally closed, normally open).
Air source pressure: 0.5-0.7MPA
Pneumatic accessories: solenoid valves, limit switches, electrical positioners, handwheel clutches, air filtration and pressure reducing valves.
Purpose:
Solenoid valve: switch the direction of the air source (voltage needs to be provided).
Limit switch: feedback valve switch signal to PLC control cabinet.
Electrical positioner: 4-20mA analog input and output to control the opening and closing angle of the valve. (Mandatory filter pressure reducing valve).
Handwheel clutch: It can realize the manual operation of pneumatic valve on site.
Air Filtration Pressure Reducing Valve: Two-Piece, Three-Piece. It has the functions of filtration, decompression and lubrication.
Explosion-proof: pneumatic accessories can be explosion-proof.
Explosion-proof grade: EX dII.BT4 EX dII.CT6
Voltage: AC220V AC110V AC380 DC12V DC24V DC110V
Add：12th Floor, No. 30, Lane 160, Yinkang Road, Minhang District, Shanghai
Tel：+86 21-54736126 21-54737190
+86 21-64988573 21-64988567
Email：sales@vattenvalve.com