Top Entry Check Valves
Reliable backflow protection for demanding pipeline applications.
Top Entry Check Valves are designed to provide reliable backflow prevention and long service life in demanding industrial applications. Featuring a robust cast steel bolted bonnet construction, these valves deliver fast check action while protecting pipelines and equipment from reverse flow and pressure surges.
The swing check design allows installation in both horizontal and vertical (up-flow) pipelines. Corrosion resistant overlays on seating and sealing surfaces enhance durability, while the heavy duty one piece body construction withstands the severe shock loads associated with check valve service.
Available in carbon steel, alloy steel, stainless steel, duplex, and special alloy materials, these valves are suitable for a wide range of oil & gas, petrochemical, power generation, and process industry applications.
Design Features
Suitable for both horizontal and vertical (up-flow) installations.
Corrosion resistant seat and disc sealing surfaces for extended service life.
Heavy duty one piece body construction designed to withstand severe shock and pressure fluctuations.
Fast and reliable check action for effective backflow prevention.
Low maintenance design for long term operational reliability.
| Parameter | Specification |
|---|---|
| Size Range | NPS 2" - 36" |
| Pressure Class | ANSI 150 to 2500 |
| Temperature Range | -60 °C to +650 °C |
| Material Standards | ASTM, UNS, AISI, NACE MR-01-03 |
| NACE Compliance | Materials available in compliance with NACE MR-01-75 upon request |
| Flanged End Standards | ASME B16.5 and B16.47, API 605, MSS-SP 44 |
| Buttweld | ASME B16.25 |