Product Description
Flexi-Hinge redefines valve technology with its seatless, full-port, double-disc check valves, designed and manufactured in the USA for peak efficiency and performance. These valves shield against liquid or gas flow reversal in system pipelines and are trusted for their reliability in even the most demanding applications.
Key Features:
Largest Flow Areas: Engineered to provide the widest flow areas in the industry.
Low-Pressure Operation: Designed for easy opening/closing with minimal pressure requirements.
Unique Design: Built to eliminate metal-to-metal contact, ensuring long-lasting performance.
ISO Certified
Flexi-Hinge Model 502 Male NPT full port, double disc check valves feature Carbon Steel body (ASTM A106 Gr.B), Aluminum internals (ASTM 6061T6 Discs and Wing Support), EPDM seals and no spring. Maximum working pressure is 250 psi at 60°F. EPDM Maximum Operating Temperature: 300°F.
Nominal Size
Diameter
Length
1-1/2" NPT
1.9"
4.0"
2" NPT
2.35"
4.0"
2-1/2" NPT
2.85"
5.0"
3" NPT
3.5"
5.5"
Other material, size and pressure rating options are available on special order. Choose from:
Body Construction: Carbon Steel, 315 Stainless Steel, or Aluminum body
Internal Components: Stainless Steel or Aluminum internal components
Seal Options: Buna-N, EPDM, Viton, or Silicone
Maximum Pressure: 200 psi
Temperature Range: -100° to +500°
