Häger GmbH & Co. KG ANSI-Check Valves
A swing check valve ensures that the fluid in the pipeline flows in only one direction. The pressure of the fluid pushes the disc against the seat, preventing backflow. Additionally, a lever with a weight can be installed to assist the closing mechanism.
Key Features of Check Valves
Check valves are self-acting non-return valves that allow flow in only one direction, reliably preventing backflow—without the need for external control. They are available in various designs such as swing, piston, or dual-plate types, suitable for both horizontal and vertical installation positions, and cover nominal sizes up to DN 900.
Backflow prevention through automatic self-closing action.
All valve types close automatically when pressure drops or backflow occurs—completely without external control. This ensures reliable backflow prevention.
Optimized flow with the swing type design.
The unguided disc of the swing check valve allows full, unobstructed flow and minimizes pressure losses—ideal for high flow rate applications.
Precise control under high pressure with the piston type design.
The guided piston or ball disc of the piston-type valve ensures precise seating and reliable operation under high pressures and flow velocities—especially robust and durable.
Häger Check Valve according to ANSI Standard (Swing Type Check Valve)
Data Sheets
Size: 2” to 30”
LBS: 150, 300, 600, 900, 1500, 2500
Body Materials: 1.0619, A216 WCB, 1.4408, 1.4306, 1.4404, 1.1138, 1.4308, 1.5419, 1.7357, 1.7379, CF8M, CF3M, CF3, WC1, WC6, WC9, LCB, LCC
Description of our Check Valves:
Face-to-face dimensions according to ASME B16.10. This industrial valve operates completely autonomously and is opened by the fluid flow. Valves come with a declaration of conformity and CE marking according to DGRL 97/23/EC. Connections are available as flanged (RF) per ASME B16.5 or welded ends per ASME B16.25. Bolted bonnet design.
- Disc available in various materials
- Depending on the material selected, check valves are suitable for water, steam, oil, gas, or other aggressive media
- Special coating available according to customer requirements
- Operation and maintenance manuals for gate valves can be provided in various languages
- EAC TR-TS conformity declarations of the Customs Union available independently of specific orders, for export and use of products in the Russian Federation, Belarus, or Kazakhstan (EAC), valid for 1, 3, or 5 years
- EAC GOST TR TS 010/2011 (Machinery Directive) or EAC GOST TR TS 032/2013 for valves DN25 and larger
- Valve passport TP according to GOST 2.601 – 2006
- TÜV certifications (3.2)
Häger Check Valve according to ANSI Standard – Spring Loaded Check Valve
Data Sheets
Size: 1/2” to 12”
LBS: 150, 300, 600, 900
Body Materials: 1.0619, A216 WCB, 1.4408, 1.4306, 1.4404, 1.1138, 1.4308, 1.5419, 1.7357, 1.7379, CF8M, CF3M, CF3, WC1, WC6, WC9, LCB, LCC
Description of our Check Valves:
Face-to-face dimensions according to ASME B16.10. This industrial valve operates completely autonomously and is opened by the fluid flow. Valves come with a declaration of conformity and CE marking according to DGRL 97/23/EC. Connections are available as flanged (RF) per ASME B16.5 or welded ends per ASME B16.25. Bolted bonnet design.
- Disc (cone) available in various materials
- Spring also available in INCONEL or equivalent materials
- Depending on the material selected, check valves are suitable for water, steam, oil, gas, or other aggressive media
- EAC TR-TS conformity declarations of the Customs Union available independently of specific orders, for export and use of products in the Russian Federation, Belarus, or Kazakhstan (EAC), valid for 1, 3, or 5 years
- EAC GOST TR TS 010/2011 (Machinery Directive) or EAC GOST TR TS 032/2013 for valves DN25 and larger
- Valve passport TP according to GOST 2.601 – 2006
- TÜV certifications (3.2)
Häger Check Valve Dual Plate (Wafer Type) – Dual Plate Swing Check Valve
Data Sheets
Size: 2” to 24”
LBS: 150, 300, 600, 900
Body Materials: 1.0619, A216 WCB, 1.4408, 1.4306, 1.4404, 1.1138, 1.4308, 1.5419, 1.7357, 1.7379, CF8M, CF3M, CF3, WC1, WC6, WC9, LCB, LCC
Description of our Check Valves:
Face-to-face dimensions according to ASME B16.10. This industrial valve operates completely autonomously, requires no manual actuation, and is opened by the fluid flow. Valves come with a declaration of conformity and CE marking according to DGRL 97/23/EC. Connections are available as flanged (RF) per ASME B16.5 or welded ends per ASME B16.25. Bolted bonnet design.
- Disc or plates available in various materials
- Spring also available in INCONEL or equivalent materials
- Depending on the selected material, dual plate check valves are suitable for water, steam, oil, gas, or other aggressive media
- EAC TR-TS conformity declarations of the Customs Union available independently of specific orders, for export and use of products in the Russian Federation, Belarus, or Kazakhstan (EAC), valid for 1, 3, or 5 years
- EAC GOST TR TS 010/2011 (Machinery Directive) or EAC GOST TR TS 032/2013 for valves DN25 and larger
- Valve passport TP according to GOST 2.601 – 2006
Industry – Check Valves (Spring Loaded)
The spring loaded check valve is a valve that closes automatically when pressure drops below a certain level and opens automatically with the help of a spring. It operates autonomously.
The spring loaded check valve can be installed horizontally or vertically and can optionally be equipped with a control plug for more precise flow regulation. It is available in nominal sizes from ½” to 12″ with flanged or welded ends according to ASME standards, and upon request, also in Inconel materials and with heavy-duty lugs for larger sizes.
- Many years of experience in project business
- Personal advice and customized solutions
- High quality standards and reliability
- Wide product portfolio for various applications
Industry – Check Valves (Dual Plate)
To prevent backflow of fluid in the pipes, a disc is installed between two flanges, allowing flow in only one direction. This dual plate check valve requires no manual operation or adjustment, as it operates entirely automatically.
An advantage is the valve’s low opening pressure. It opens easily with a spring, which can also be made of Inconel. When pressure decreases, the valve closes automatically. It is important that the dual plate check valve is installed horizontally in the pipeline. The valve is marked with an arrow indicating the correct flow direction.
