High flow capacity, bidirectional sealing gate valve, used in high pressure and high flow applications.
Gate Valve Manufacturer
Small Pressure Loss
The Hearken Flow gate valve adopts a full-bore design, and the internal channel is smooth and flat, which significantly reduces pipeline pressure drop and turbulence formation. The medium can flow efficiently in the valve, maintain stable pressure, achieve greater flow output, and reduce system energy consumption.
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Your Professional Gate Valve Supplier in China
Hearken Flow’s high-performance and long-life gate valves provide a variety of structural options such as rising stem and non-rising stem, which can flexibly respond to different working conditions.
Gate Valve By Cast Steel
API600 Cast Steel Gate Valve
Hearken Flow adopts API600 standard cast steel gate valve, high pressure and high temperature applicable, reliable sealing, suitable for petroleum, chemical industry.
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Flanged Stainless Steel Gate Valves
Hearken Flow’s stainless steel gate valves are flanged and corrosion-resistant, and are suitable for use in food, pharmaceutical, and seawater treatment applications.
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Resilient Wedge Gate Valve
Hearken Flow adopts resilient wedge structure, strong sealing, suitable for water, steam, oil and other medium and low pressure media.
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Flange Rising Stem Gate Valve
Hearken Flow adopts the open stem design, the valve stem lifting and lowering to show the opening degree, easy to operate and maintain, suitable for frequent opening and closing of pipelines.
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Soft Seal Non-Rising Stem Gate Valve
Hearken Flow adopts concealed stem soft seal design, saving space, suitable for city water supply, sewage and other low pressure pipelines.
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API600 Pressure Seal Gate Valve
Hearken Flow adopts API600 standard, pressure self-sealing, high temperature and high pressure resistance, suitable for power stations, refineries and other key equipment.
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Bolted Bonnet Gate Valve
Hearken Flow features a bolted bonnet and parallel sliding disc design for easy maintenance and is suitable for common low to medium pressure media such as water and air.
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High Temperature Lined Gate Valve
Hearken Flow is lined with high temperature resistant materials (PTFE / ceramic), resistant to corrosion at 300℃+, suitable for chemical industry and boilers.
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JIS Flange Cast Steel Gate Valve
Hearken Flow adopts JIS standard cast steel flange connection, high strength, suitable for Japan and Southeast Asia industrial pipeline.
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JIS Flange Stainless Steel Gate Valve
Hearken Flow adopts JIS standard stainless steel flange connection, excellent corrosion resistance, suitable for general industry and water treatment.
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API Flange Cast Steel Gate Valve
Hearken Flow adopts API standard cast steel flange connection, certified by API, suitable for petrochemical, refining and other harsh conditions.
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Advantage
Why Choose Hearken Flow Gate Valves?
Easy Opening and Closing, Anti-Jamming
The gate valve stem of Hearken Flow is made of corrosion-resistant materials such as SS304/SS316 stainless steel, alloy steel (Alloy 20), brass, bronze, ductile iron, etc., and is processed by surface polishing, oxidation, electroplating chrome, etc. to effectively reduce friction and prevent rust and jamming when used in humid or corrosive environments.
At the same time, the internal flow channel of the Hearken Flow gate valve adopts a low-friction structure design, which can ensure smooth opening and closing even when it is not operated for a long time or the opening and closing frequency is low, avoiding obstruction of the actuator or manual operation.
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Easy To Maintain And Disassemble
Hearken Flow gate valves are simple, have few parts and are well-located, so your service personnel can quickly locate and deal with the problem. The gate design of our gate valves is easy to operate, the wedge gate closes tightly and opens with little effort, and the resilient gate can be replaced without disassembling the entire valve. During maintenance, the sealing surfaces of the gate valve are easily accessible, eliminating the need to disassemble the entire valve for some maintenance work, reducing effort and time costs. In addition, Hearken Flow gate valve parts and components of high versatility and interchangeability, a wide range of applications, and maintenance experience can be learned from each other, further improving the convenience of maintenance.
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High Temperature And High Pressure Resistance
Hearken Flow gate valves can withstand high temperature and high pressure, mainly thanks to the following aspects:
- Material selection: Hearken Flow gate valve body is usually made of cast steel, stainless steel and other high-strength materials, these materials remain stable in high temperature and high pressure environments. Seat sealing surface is often spray-welded with wear-resistant, high-temperature-resistant materials to ensure sealing performance and wear resistance.
- Structural design: Hearken Flow high-pressure wedge gate valves have a wedge-shaped valve flap, This design can enhance the sealing force between the valve flap and the valve seat, effectively preventing high-pressure media leakage. We have some gate valves with a pressure self-tightening sealing structure. With the increase of pressure in the inner cavity, the sealing performance will be improved accordingly, suitable for high temperature and high pressure environments.
- Sealing performance: Hearken Flow uses high-temperature resistant sealing materials such as flexible graphite, metal bellows or metal winding pads, together with the wedge gate or double gate self-sealing design, the use of media pressure to enhance the sealing surface fit, to ensure stable sealing at high temperatures.
- Mechanical strength: Hearken Flow gate valve stems are usually made of stainless steel and other high-strength materials with anti-corrosion treatment to ensure that you maintain good mechanical properties in long-term use.
Production
Gate Valve Production Process
Raw Material Inspection
In order to ensure the high quality performance of each gate valve, Hearken Flow will test the raw materials of the valve body through spectrometers, hardness testers and other equipment to prevent cracking and deformation caused by the use of inferior materials.
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Processing Technology
During the processing, it will go through process steps including heat treatment, welding spray welding, sealing grinding, etc. to adapt to the working conditions you need.
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Testing
After assembly, the overall performance of the gate valve will be tested, including shell strength, sealing performance, opening and closing torque, etc., to ensure that each gate valve can be used directly after you receive it.
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Optimized Solutions for Space and Time Efficiency
Save Installation Space
For space-constrained applications, Hearken Flow offers non-rising stem gate valves and custom compact short structure designs. Combined with compact pneumatic and electric actuators and cost-effective prices, you can easily achieve remote automation control in small spaces.
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Short Delivery Cycle
Hearken Flow’s gate valves adopt modular design, and the standardized production process greatly reduces the time from ordering, assembly to delivery, ensuring on-time delivery and smooth progress of your project.
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Your Professional gate valve Manufacturer In China
The Hearken Flow gate valve is suitable for a variety of media, including water, oil, steam, air, compressed gas, oil vapor, mud, etc., and the design ensures that there is no medium retention in the pipeline, ensuring efficient and clean operation of the system.
Gate Valve by Application
FAQ
A: A gate valve is used exclusively for fully opening or closing fluid flow (isolation). It is not designed for throttling.
A: Ideally, install the gate valve in a vertical position with the handwheel pointing up to extend the valve’s lifespan.
A: The two main gate valve types are Rising Stem (visual open/close indication) and Non-Rising Stem (for limited space).
A: In industrial water applications, a gate valve is frequently referred to as a Sluice Valve.
A: Gate valves close slowly, which prevents “water hammer” and protects pipes from pressure spikes better than ball valves.