The GEMÜ R91 is a metal dual plate check valve with flange connection and standardized length to DIN EN 558-1. The valve body, plates and seals are available in various materials. In the version with metallic seal, the GEMÜ R91 valve can be used at high temperatures up to 300 °C.
Key features
Suitable for low and high temperatures
Standardized length to DIN EN 558-1, series 16
Available as option free of oil and grease
Drip and bubble-tight to EN 12266-1/P12, leakage rate A to G
Technical features
Parameters
Value
Media temperature
-200 to 300 °C
Operating pressure
0 to 16 bar
Nominal sizes
DN 50 to 600
Connection types
Flange
Connection standards
ANSI
ASME
EN
Body materials
1.0619, galvanized cast steel material
1.4408, investment casting material
EN-GJS-400-15
Seal materials
EPDM
FKM
NBR
Spring materials
1.4571, spring steel
Conformities
EAC
WRAS
Plate material
1.4408, investment casting material
1.4469, duplex cast steel material
EN-GJS-400-15, SG iron material
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