Metaval Single Flap Check Valves are compact, lightweight, and robustly constructed valves ideal for backflow prevention in low-pressure systems. Using a single disc hinged at the top, the flap opens with forward flow and swings shut to block reverse flow. These valves are simple in design, easy to install, and require minimal maintenance.
1/2” to 48”
Class 150 to 600
PN 10 to PN 40
1/2” to 48”
Class 150 to 600
PN 10 to PN 40
Up to 150°C (depending on seat material)
Wafer, Lugged
EN 558, ISO 5752
Design & Manufacturing: EN 12334 / API 594
Pressure-Temperature Ratings: ASME B16.34
Testing: EN 12266-1 / API 598
Body: Cast Iron, Ductile Iron, WCB, CF8, CF8M
Disc: Ductile Iron (epoxy coated), Stainless Steel (304, 316), Bronze
Seat: EPDM, NBR, PTFE, Viton
Hinge Pin: SS304 / SS316
Gasket: EPDM / NBR / PTFE
Simple Flap Design: Easy maintenance and long service life
Compact Build: Ideal for limited space installations
Low Head Loss
Hydrostatic and Pneumatic Testing
Seat Leakage Test (EN 12266-1)
PMI and Visual Surface Check
Hardness & Tensile (where applicable)
Dimensional and Functional Closure Testing
Oxygen Cleaning (if requested)
Water Distribution Lines
Irrigation Systems
General Industrial Water Loops
Fire Water Networks
Building Utilities and Pumping Systems
Potable Water
Treated Effluent
Neutral Liquids
Air and Gases
Non-Corrosive Slurries
CE Certified
PED (2014/68/EU)
ISO 9001:2015
ISO 14001:2015
ISO 45001:2018
Fire Safe Design – API 607
Get in touch with our team for additional information on product pricing, technical data, project support and more.
169-170, Badkhal Pali Road, Bhankri, Faridabad, Haryana 121004, India
+91 99589 35512
info.ind@metaval.com
