Häger GmbH & Co. KG ANSI-Gate Valves
Gate valves are designed for fully shutting off or opening a pipeline. They are installed as gate valves or shut-off valves in a pipeline and should not be used for flow regulation. Operation of a gate valve is typically done via a handwheel.
Key Features of Gate Valves
Gate valves enable full opening or closing of pipelines with minimal pressure loss and, thanks to their high media and temperature resistance, are suitable for a wide range of industrial applications. The models offered by Häger Industriearmaturen can be operated manually or via gearbox and withstand temperatures from -196 °C to +600 °C as well as pressures up to 400 bar.
Nearly pressure-loss-free flow
Gate valves provide an unobstructed flow path when fully open, resulting in minimal pressure loss. This makes them ideal for applications requiring high flow rates and efficiency.
Robust and versatile
Thanks to their robust construction, gate valves are suitable for a wide range of media—including water, oil, gas, steam, and abrasive substances. Depending on the design, they reliably withstand extreme conditions with temperatures ranging from -196 °C to +600 °C and pressures up to 400 bar.
Reliable and energy-efficient shut-off technology
The manual or gearbox-assisted operation via a handwheel precisely moves the gate along a rising stem into the desired position. This allows pipelines to be safely and permanently fully opened or closed—without pressure surges or flow turbulence.
Häger Gate Valve according to ANSI standard
Datasheets
Nominal size: 3” to 60”
Pressure class 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 Gate Valves:
- Face-to-face dimension according to ASME B16.5
- Valves with conformity declaration and CE marking according to DGRL97/23/EG
- Flanged ends (ASME B16.5), welded ends, or socket weld ends
- Full bore or as per datasheet
- TA-Luft optional
- Stellite coating optional
- NACE MR 0175 compliant
- ATEX certification
- Flexible wedge design
- ISO-TOP flange (for actuator mounting)
- Actuation options: pneumatic, electric, hydraulic, gas-over-oil, or gear-operated handwheel
- Extension bonnet / stem extension
- Special coatings available according to customer requirements
- TA-LUFT compliant (according to VDI 2440)
- Optional stellited versions (STELLITE hardfacing)
- Emissions leak test according to EN ISO 15848-2 B
- Operating and maintenance manuals available in various languages
- EAC TR-TS conformity declarations for export and use in the Russian Federation, Belarus, or Kazakhstan (EAC), valid for 1, 3, or 5 years.
- EAC GOST TR TS 010/2011 (Machinery Directive)
- EAC GOST TR TS 032/2013 for valves ≥ DN25
- Valve passport TP according to GOST 2.601 – 2006
- TÜV inspections (3.2 certification)
Gate Valve (Forged Small, Flanged Ends)
Datasheets
Gate Valves / Forged Steel Gate Valves
Size: 1/4″ to 2-1/2″
LBS: 150, 300, 600, 900, 1500, 2500
Body: A105N, F304, F316, F321, F316Ti, F5, F12, F22
Description of our Gate Valves:
- Face-to-face dimensions according to ASME B16.10
- Valves larger than 1″ include a Declaration of Conformity and CE marking according to DGRL97/23/EC
- Flanged end connection
- Optional TA-LUFT systems available (Technical Instructions on Air Quality Control – TA Luft) according to VDI 2440
- Outside screw and yoke (OS&Y) with manual handwheel operation
- Flanged valves are integrally forged
- Solid wedge
- Optional stellited version (STELLITE) for extended service life
- Depending on material selection, suitable for water, steam, oil, gas, or other aggressive media
- ISO-TOP flange for actuator mounting
- Extension bonnet / stem extension available
- Custom coating available upon request
- Optional TA-LUFT systems according to VDI 2440
- Emission leak test in accordance with EN ISO 15848-2 B
- Operating and maintenance manuals available in various languages
- EAC TR-TS conformity declarations for customs union exports (Russia, Belarus, Kazakhstan), 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
- Technical Passport (TP) in accordance with GOST 2.601 – 2006
- TÜV certification (3.2) available
Gate Valve (Forged Small)
Data Sheets
Gate Valves / Small Gate Valves
Size: 1/4” to 2-1/2”
LBS: 800, 1500, 2500
Body: A105N, F304, F316, F321, F316ti, F5, F12, F22
Description of our Gate Valves:
- BW WELD ASME B16.25
- SW WELD ASME B16.11
- SCREWED ENDS ASME B1.20.1
- Valves larger than 1” come with a Declaration of Conformity and CE marking according to DGRL97/23/EC
- Optional TA-LUFT (Technical Instructions on Air Quality Control – TA Luft) systems available per VDI 2440
- Bolted bonnet, external stem, and manual handwheel operation
- Solid wedge
- STELLITIZED design optional
- Depending on material selection, small gate valves / gate valves are suitable for water, steam, oil, gas, or other aggressive media
- ISO-TOP flange (for actuator mounting)
- Insulation cover / stem extension
- Special coating according to customer requirements
- TA-LUFT per VDI 2440 | optional
- Emission leak test according to EN ISO 15848-2 B
- Operating and maintenance manuals for gate valves available in various languages
- EAC TR-TS conformity declarations of the Customs Union, independent of order, 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 certificate TP according to GOST 2.601 – 2006
- TÜV approvals (3.2)
Industry – Forged Small Gate Valve by the Specialist
Forged steel gate valves are robust, metal-sealing, and ideal for fully opening or closing pipelines. They are available in carbon steel or stainless steel, in various designs (e.g., bolted bonnet), and with selectable connection types. Stellite-coated seating surfaces increase service life, TA-LUFT packing reduces emissions, and use in hazardous (Ex) areas is easily possible.
The gate valves offered by Häger Industrial Valves are suitable for numerous media such as oil, water, gas, or steam and withstand temperatures from -320 °F to +1112 °F (-196 °C to +600 °C) as well as pressures up to 400 bar.
Key Features of Gate Valves
Our high-performance gate valves ensure unobstructed flow for reliable opening and closing of pipelines. They are suitable for water, gas, oil, steam, and media containing solids, making them ideal for use under high pressures and temperatures, including in hazardous (EX-rated) industrial environments. Bypass lines are available as an option.
Robust gate valves with metal seals
Metal-sealing gate valves were developed as early as the 18th century and feature a recessed body seat with a sealing ring for reliable tightness. For abrasive media, the seat can be additionally welded to minimize corrosion and wear. Due to their robust design, they are especially suitable for industrial applications with high temperatures up to 800 °C—significantly higher than soft-sealing variants. However, a disadvantage is that contaminants in the seat can hinder complete closure and affect leakage rates.
Gate valves with rising spindle
The rising stem is attached to the wedge and enables the gate valve to be opened or closed. Since gate valves are manufactured with external stem threads, the stem can be easily lubricated. This ensures reliable operation of the valve even after extended periods of use.
Bypass bypass to compensate for differential pressures
For larger nominal sizes, so-called bypass lines can be installed. By installing bypass valves, the pressure between the wedge plates is equalized, ensuring easier operation. Additionally, the filling of pipelines can be delayed. To avoid possible stagnation, the gate valve can be closed while the bypass valve is opened, allowing continuous flow.
Valve assembly
A gate valve is an industrial valve whose closure element moves linearly and perpendicular to the flow in the sealing area. Gate valves are primarily manufactured for small to larger nominal sizes, covering all pressures and temperatures. A key feature is the full bore design when open, resulting in low pressure losses that positively affect higher flow velocities. Another advantage is the valve’s ability to be pigged. Regarding the shut-off element, a distinction is made between solid wedge and flexible wedge designs. Another design criterion is the bonnet/body construction, which is classified as welded bonnet, bolted bonnet, or pressure seal.
External spindle thread (outside screw and yoke)
The stem moves with an axial lift motion. Unlike globe valves, the handwheel is non-rising. The external stem thread allows visual inspection of the stem, enabling the position of the gate valve wedge to be determined. Although external contamination of the stem is possible, it can also be cleaned and lubricated this way.
Fitting connection
Gate valves are available with flanged ends, socket weld ends, or butt weld ends. Flanges represent the conventional method of connecting the valve to the pipeline. This type of connection allows for gasket replacement without significant axial displacement of the pipeline.
