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Metal non-return valve

GEMÜ R90

ConfigureTechnical data sheet
Stainless steel check valve with central flap and mounting lugs for reliable backflow prevention in industrial piping systems.

Non-return valve in disc design

Product information

The GEMÜ R90 is a metal disco check valve with flange connection and standardized length to DIN EN 558. The valve body, disc and seal are available in various materials. In the version with metallic seal, the GEMÜ R90 valve can be used at high temperatures up to 400 °C.

Key features

  • Suitable for low and high temperatures
  • Standardized length to DIN EN 558, series 49
  • Available as option free of oil and grease
  • A special disc guide prevents the disc from tilting and the occurrence of strong flutter
  • Drip and bubble-tight to EN 12266-1/P12, leakage rate A to G
Stainless steel check valve with central flap and mounting lugs for reliable backflow prevention in industrial piping systems.

Technical details

Parameters
Value
Media temperature
-196 to 400 °C
Operating pressure
0 to 50 bar
Nominal sizes
DN 15 to 300
Connection types
Flange
Connection standards
ANSI
ASME
EN
Body materials
1.0619, galvanized cast steel material
1.4408, investment casting material
Seal materials
EPDM
FKM
NBR
PTFE
Disc/spring cross materials
1.4408, investment casting material
1.4469, duplex cast steel material
Spring materials
1.4571, spring steel
2.4610
Conformities
ATEX
DVGW Drinking water
EAC
FDA
KTW

Downloads

23 Results
  • Produktzertifikat TA-Luft - GEMÜ R90, RSK, ZRSK

    pdf (27 KB) -
    DE

  • Betriebsanleitung / Operating instructions GEMÜ R90

    pdf (6 MB) -
    DE/EN

  • Instrucciones de uso GEMÜ R90

    pdf (4 MB) -
    ES

  • Product certificate TA-Luft - GEMÜ R90, RSK, ZRSK

    pdf (27 KB) -
    EN

  • 取扱説明書 GEMÜ R90

    pdf (5 MB) -
    JA

  • Betriebsanleitung GEMÜ R90

    pdf (4 MB) -
    DE

  • Instruções de operação GEMÜ R90

    pdf (4 MB) -
    PT

  • Instrukcja obsługi GEMÜ R90

    pdf (4 MB) -
    PL

  • Folha de dados técnicos GEMÜ R90

    pdf (3 MB) -
    PT

  • Fiche technique GEMÜ R90

    pdf (3 MB) -
    FR

  • Declaration of Conformity FDA, KTW, DVGW-W, WRAS, NSF, USP, ADI - GEMÜ R90, R91, RSK, ZRSK EPDM o-rings

    pdf (32 KB) -
    EN

  • Användarhandbok GEMÜ R90

    pdf (4 MB) -
    SV

Suitable services

  • Expert knowledge
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    Training

    Deepen your expertise in valve technology and plant control. Our training courses provide practical content to help you design processes that are safe, efficient, and compliant with standards.

  • Ensure longevity
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    Maintenance

    Regular maintenance ensures consistently stable processes. Our service teams ensure the availability of your systems and reliably extend the service life of your components.

  • Fast, efficient and
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    Repair

    When it comes to repairs, every minute counts. Our experts analyze, repair, and test reliably - using original spare parts, technical precision, and a focus on minimizing downtime.

  • Intelligent networking with GEMÜ CONEXO

    Digital support

    CONEXO makes maintenance digital: RFID technology and mobile apps enable the unique identification of your components and document maintenance processes transparently.