Check ValvesCheck valves are designed for the protection of system against the back flow of the media what may cause various problems to the system and parts in it. To get more information please expand the product block by pressing on image or product title. To get detailed information about specific product you can download Technical datasheet file by clicking corresponding link. TiltingThis disc check valve will be clamped between the flanges and prevents the back flow of the medium by the one-side opening swing flap. Tilting Check Valve | | | The tilting check valve has a broad construction form. |
Technical Data - Size range: DN50 to DN900
- Pressure range: PN10, PN16, PN25, PN40, ANSI 150, ANSI 300
- Body material: Cast steel, stainless steel
- Disc material: Cast steel, stainless steel
- Seal ring: Metal
- Temperature: -40°C to +600°C
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SandwichDue to the widespread material and seal ring combinations the sandwich check valve is a real all rounder in its area. It will be clamped between the flanges and prevents the back flow of the medium by the one side opening swing flap. Sandwich Check Valve | | | This disc check valve has a slim construction form and is optional spring-loaded available. |
Technical Data - Size range: DN50 to DN600 (up to DN1000 on request)
- Pressure range: PN6, PN10, PN16, PN25, PN40, ANSI 150, ANSI 300
- Body material: Steel, stainless steel, hastelloy, aluminium, alubronze, brass, redbrass, PVC, PP, PVDF
- Disc material: Steel, stainless steel, hastelloy, aluminium, alubronze, brass, redbrass, PVC, PP, PVDF
- Seal ring: NBR, EPDM, Viton or PTFE, metal
- Temperature: -40°C to +600°C
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Double-FlapThis disc check valve has, equal to the tilting, a broad construction form and will also be clamped between the flanges. Double-Flap Check Valve | | | The one-side opening double flap prevents the back flow of the medium. |
Technical Data - Size range: DN50 to DN1200 (larger on request)
- Pressure range: PN10, PN16, PN25, ANSI 150, ANSI 300
- Body material: GG25, GGG40, alubronze, stainless steel (1.4408), Duplex
- Disc material: Alubronze, stainless steel (1.4408), Duplex
- Seal ring: Metal, NBR, EPDM, Viton
- Temperature: -40°C to +600°C
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Socket and Disco/Socket-DSVThe Disco-DSV, the Socket-DSV and the socket check valve will be clamped between the flanges/screwed to the flanges and prevent the back flow of the medium by the one-side opening valve. These valves are used in pipelines with high pressure and/or high temperature and can be installed at any position. We also provide this construction type in larger size as nozzle check valve. Disco-Disc Check Valve | | | Valve with stainless steel body and disc material. Working temperature from -40°C to +600°C. |
Technical Data - Size range: DN15 to DN300
- Pressure range: PN40
- Body material: Stainless steel (1.4408)
- Disc material: Stainless steel (1.4408)
- Seal ring: Metal, NBR, EPDM, viton
- Temperature: -40°C to +600°C
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Socket-Disc Check Valve | | | Valve with stainless steel body and disc material. Working temperature from -40°C to +600°C. |
Technical Data - Size range: DN15 to DN50
- Pressure range: PN40
- Body material: Stainless steel (1.4408)
- Disc material: Stainless steel (1.4408)
- Seal ring: Metal, NBR, EPDM, Viton
- Temperature: -40°C to +600°C
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Socket Check Valve | | | Valve with various materials of body, disc and seal ring. Working temperature from -40°C to +600°C. |
Technical Data - Size range: DN15 to DN300
- Pressure range: PN40
- Body material: Stainless steel (1.4408), brass, redbrass
- Disc material: Stainless steel (1.4408), brass, redbrass
- Seal ring: Metal, NBR, EPDM, Viton
- Temperature: -40°C to +600°C
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Flange-DiscThe flange-disc check valve will not be clamped between the flanges, but will be screwed to it by the flange-holes. Fergo provide this type in several material combinations for various temperature ranges. By the one-side opening disc the back flow of the medium will be prevented. Flange-Disc Check Valve | | | This disc check valves can also be equipped with lever and weight, as well as with basket guard or lifting device. |
Technical Data - Size range: DN40 to DN600
- Pressure range: PN10, PN16, PN25, PN40, PN63, PN100, PN160, PN250, PN320
- Body material: GG25, GGG40, cast steel, stainless steel
- Disc material: GG25, GGG40, cast steel, stainless steel
- Seats: EPDM, Alubronze, Brass, Stainless steel
- Optional: TA-Luft, ATEX, TRbF 131, 301 oder 302
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Ball-DiscThis check ball is mainly used for roughly polluted media, that would clogg conventional valves. Ball-Disc Check Valve | | | The medium sets the ball into rotation, so it will be cleaned up on it's own. By your request this product is also available with threaded connection. |
Technical Data - Size range: DN25 to DN500
- Pressure range: PN10, PN16
- Body material: GG25, GGG40, stainless steel (1.4408/1.4571)
- Ball: NBR-Coating
- Temperature: -20°C to +105°C
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Swing-CheckThis disc check valve with lever and weight will be screwed to the flange by the flange holes. By the one-side opening disc the back flow of the medium will be prevented. Swing-Check valve | | | A protective hood, hydraulic damper or lifting devices are also available. |
Technical Data - Size range: DN200 to DN1200
- Pressure range: PN10, PN16, PN25, PN40
- Body material GGG40 EPOXY, stainless steel
- Disc material: GGG40 EPOXY
- Seal ring: Stainless steel, soft-seated
- Temperature: -20°C to +200°C
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