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Check Valve (Angle Seat) made of PVDF with Srew Joint

Product specification The check valves are developed for mounting in PVDF piping, delivered... more

Product specification

The check valves are developed for mounting in PVDF piping, delivered with complete connection set.

Technical specification

Material of valve parts: PVDF (polyvinylidene fluoride)

Gasket: valve seat made of FPM (fluorinated rubber)

Max. operating pressure: 6 bar at +20 °C

Complete with connection set: Connecting nuts, insert parts and screw-in components on both sides made of PVDF (polyvinylidene fluoride), o-rings made of FPM (fluorinated rubber).

General Information Use for process engineering and process technology, chemical industry,... more

General Information

Use for process engineering and process technology, chemical industry, transport of chemicals, desulfurization and denitrification systems, sewage purification, water purification, environmental technology, hygiene technology and sanitary engineering.

In the above mentioned areas they serve as shut-off, safety and cleaning devices on containers, piping and pump systems.

Angle seat valves are made of plastics, with excellent resistance to chemically aggressive and corrosive media, offering a wide range of application

Leak-free shut-off of liquid and gaseous media.

Injection-molded valve housing.

All medium-contacting valve parts are made of plastics with high resistance to chemicals. They are particularly suitable for applications where aggressive media are to be conveyed and blocked.

Housing material: Alternatively PVC-U, PP or PVDF

Type of connection:

screw joint on both sides. The screw joints contain O-seals, insert parts, screw-in components (PVC valves) and cap nuts. The valves are supplied as complete unit with the screw joint. They are fitted with end fittings for fastening to pipes.

The connection of the PVC valves to piping is effected at the first application by adhesive bonding of the connections with the pipe, in the case of PP and PVDF valves connection and pipe are welded together. Once the valves are fixed to pipes, they can be easily removed from the pipe by disconnecting the screw joint.

Check valves:

The O-ring of the designs PP and PVDF is spring loaded.

They are used in piping of technical or sanitary equipment, in case the medium must flow only in one direction as required by the process.

Chemical resistance of used materials:

PVC-U (rigid polyvinyl chloride): Resistant to most alkalis, acids, salt solutions and water-miscible organic compounds. Not resistant to aromatic and chlorinated hydrocarbons.

Polybutene: Resistant to aqueous solutions of acids, salts, alkalis and a lot of organic solvents. Not resistant to concentrated, oxidizing acids.

PVDF (polyvinylidene fluoride): Resistant to acids, salt solutions, aliphatic and aromatic (chlorinated) hydrocarbons, halogenes and alkohols, but only of limited resistance to ketones, esters, ethers, and not usable for organic bases and alkalis.

PTFE (polytetrafluoroethylene): PTFE is resistant to most chemicals.

FPM (fluorinated rubber): High chemical resistance to all kinds of solvents. Not suitable for hot steam, organic acids and strong bases.

PP (polypropylene): Resistant to aqueous solutions of acids, salts, alkalis and a lot of organic solvents. Not resistant to concentrated, oxidizing acids.

FEP (fluoroethylene-propylene): FEP is resistant to most chemicals.

Max. temperature:

PVC-U up to +60 °C, Polybuton up to +90 °C, PVDF up to +100 °C, PTFE up to +250 °C, FPM up to +150 °C, PP up to +90 °C, FEP up to +150 °C

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