Disco and lined non-return valves

Media

Steam and condensate
Natural gas, biogas and biomethane
LPG
Process media
Gas and fuel

Manufacturers

GESTRA
ChemValve

Technical specifications

Sizes: DN 15-200
Pressure classes: PN 10-160, ASME 150-900#
Materials: GG-25, GS-C 25 N, AISI 316, special brass, hastelloy
Connection ends: between flanges, threaded
Other names: flange check valve, disco check valve, lined non-return valve

What are Disco and lined non-return valves?

DISCO check valves are compact axial type valves, in which the closure spring is symmetrically located in the center of the valve.

DISCO-style check valves are best suited primarily for smaller pipes, as their flow resistance compared to other check valves installed between flanges increases with larger pipe sizes.

Selection of disco and lined non-return valves

There are several materials available for the body, disc, and spring, making it possible to create customized solutions such as choosing a hastelloy spring while the other parts are made of acid-resistant steel. The standard opening pressure is 5 mbar. Other spring forces can be selected from an extensive range up to 3000 mbar.

Soft seals are also available in EPDM, FPM, NBR or PTFE.

MB is a threaded brass check valve for water systems. All RK models are installed between flanges. Depending on the model, the body materials include special brass, various grades of stainless steel, or acid-resistant steel.

The range also includes PN 160 high pressure valves.

We assist in selecting and sizing the check valve that meets the requirements of the application.

Download Brochures

Steam, condensate and liquid fuels

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GESTRA RK86, RK86A, RKE86, RKE86A Non-Return Valve for Sandwiching Between Flanges

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GESTRA RK76 Non-Return Valves for Sandwiching Between Flanges

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GESTRA RK70, RK71 Non-Return Valves

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GESTRA RK44 Non-Return Valves for Sandwiching Between Flanges

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GESTRA RK41 Non-Return Valves for Sandwiching Between Flanges

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GESTRA MB14 Non-Return Valves

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Process fluids

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AZ-Armaturen Delta and Globus Ball Check Valves with Lining

Lataa PDF
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GESTRA RK86, RK86A, RKE86, RKE86A Non-Return Valve for Sandwiching Between Flanges

Lataa PDF
download

GESTRA RK76 Non-Return Valves for Sandwiching Between Flanges

Lataa PDF
download

GESTRA RK70, RK71 Non-Return Valves

Lataa PDF
download

GESTRA RK44 Non-Return Valves for Sandwiching Between Flanges

Lataa PDF
download

GESTRA RK41 Non-Return Valves for Sandwiching Between Flanges

Lataa PDF
download

GESTRA MB14 Non-Return Valves

Lataa PDF
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ChemValve DTEF Non-Return Valves

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