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Non-return valves

Thread and intermediate flange
Double blade non-return valves

Armaturenfabrik Non-return valves Double wing Intermediate flange Double non-return valve type 915 AWS Apparatebau

Non-return valves are essential fittings for preventing backflow in piping systems. They protect pumps, systems and processes from damage and ensure operational safety. Our selection includes compact solutions for water, air and gas as well as high-performance valves for aggressive media and high temperatures. Whether stainless steel, cast iron or special materials – we offer the right non-return valves for your application.

Our recommendation for non-return valves

Rückschlagklappe Typ SC 200 aus Edelstahl mit Innengewinde, PN16, DN8–80 von EPI

Non-return valves type SC 200

Compact stainless steel non-return valves for high temperature and pressure ranges.

Data sheet

Rückschlagklappe Fig. 406 und 407 von Fromme Armaturen aus Grauguss, PN16/PN10, DN40–300

Non-return valves Fig 406 & 407

Cast iron non-return valves for high temperatures up to 300°C.

Data sheet

Zweiflügelige Rückschlagklappe Serie 2000 von KSB, PN16/Class150, DN50–600 von KSB

Non-return valves Series 2000

Double-leaf non-return valves for large nominal sizes and aggressive media.

Data sheet

AWS Doppelflügel-Rückschlagklappe Typ 915, PN10–40, DN50–900, kurze Baulänge, Zwischenflansch, Doppelrückschlagklappe

Non-return valves type 915

Compact double-leaf non-return valves with high flow rate and short face-to-face length.

Data sheet

Comparison table of non-return valves

FeatureSC 200Series 2000Type 915 Fig 406 / 407
Nominal pressurePN 16PN 16 /
PN 20		PN 16 –
PN 40		PN 16 /
PN 10
Nominal size DN 8 –
DN 80		DN 50 –
DN 600		DN 50 –
DN 900		DN 40 –
DN 300
Temperature-10°C to
+200°C		-5°C to
+538°C		-10°C to +200°Cup to +300°C
MaterialStainless steel CF8MCast iron / stainless steelDuctile iron /
Stainless steel		Cast iron
EN-GJL-250
GasketPTFEMetal-elastomer / metal-metalNBR, EPDM, FKMElastomer / metal
Special featureCompact design for confined spacesDouble-leaf valve disc for low pressure lossShort face-to-face length, high flow rateMaintenance-free, robust design

Our partners

Armaturenfabrik AWS Apparatebau Industriearmaturen Non-return valves Armatur Logo

AWS

Non-return valves,
Valve technology,
Component assembly

High-quality solutions for mechanical engineering, plant construction and the automotive industry
Armaturenfabrik EPI - Precise ball valves for demanding media - Ball valve technology for safe processes Logo

EPI

Ball valves,
Non-return valves

Specializing in high-quality ball valves for industrial applications.
Armaturenfabrik Fromme Armaturen - Fromme Armaturen - Shut-off technology for demanding applications Logo

Fromme fittings

globe valves, ball valves

Individual solutions and special designs.
Armaturenfabrik KSB Armaturen Logo Shut-off valves and control technology for demanding applications

KSB

Butterfly valves, globe valves, gate valves, control/regulating valves

Leading international manufacturer of industrial valves.

Advantages of our selection of non-return valves

Wide range

nominal sizes and nominal pressures

Materials

for standard and special applications

Long service life

and high corrosion resistance

Maintenance-free constructions

for minimal operating costs

international standards

DIN, EN, API, ASME

Non-return valves in pipe production & plant engineering

Our pipe production department supplies welded pipe segments, pipe assemblies and complete valve sections made of stainless steel – exactly to your specifications. Whether pressure pipes in accordance with the PED, reducers or complex assemblies with integrated non-return valves: We combine the highest manufacturing quality with standard-compliant design for industrial plants, energy and process systems.


Your advantages:

  • Pipe assemblies with integrated valves (e.g. non-return valves, ball valves, strainers)
  • Production in accordance with Pressure Equipment Directive 2014/68/EU and EN standards
  • Individual items, series production or SKID system construction
  • Materials: Stainless steel, steel, special alloys for aggressive media
  • Ready-to-install delivery including documentation and test reports
Learn more
Valve factory Pressure reducing station Pressure regulating valves Pressure reducing valves SKID Overflow valves individual pipe production, non-return valve, non-return valves - production and assembly, valve construction, valve manufacturer

FAQ – Frequently asked questions about non-return valves

Which media are suitable for non-return valves?

Water, air, gas, steam as well as aggressive and corrosive media.

Yes, all models can be used flexibly (observe installation instructions).

EN 558, API 594, EN 12266-1, Pressure Equipment Directive 2014/68/EU.

Yes, NBR, EPDM, FKM and metal gaskets are available.

Yes, e.g. for higher pressures, special materials or ATEX zones.

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