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Valve manufacturer

Ouality Originizes From Detalls

Latest product classification

3-600# Full-bore, soft‑and‑hard double‑seal swing check valve for long-distance pipelines

3-600# Full-bore, soft‑and‑hard double‑seal swing check valve for long-distance pipelines

The swing-type soft-seal check valve features a pivoting‑plate design: the disc opens under the thrust of the fluid flow and closes by gravity and back pressure when the flow reverses. The disc is fitted with a rubber or PTFE soft seal that forms a tight, leak‑free interface with the valve seat, ensuring excellent sealing performance. Its straight‑through flow path provides smooth flow, low fluid resistance, and gentle opening/closing action, minimizing water hammer. The valve body is available in cast steel, cast iron, stainless steel, and other materials; installation is not restricted by flow direction, making it suitable for water supply and drainage, gas, chemical, HVAC, and other piping systems to prevent backflow. It can be installed horizontally, vertically, or in multiple operating configurations.

客制化

7x24 售后服务

8-600# Full-bore, soft‑and‑hard dual‑seal swing check valve for long-distance pipelines

8-600# Full-bore, soft‑and‑hard dual‑seal swing check valve for long-distance pipelines

The swing-type soft-seal check valve features a pivoting‑plate design: the disc opens under the thrust of the flowing medium and closes by gravity and back pressure when the flow reverses. The disc is fitted with a rubber or PTFE soft seal that forms a tight, reliable seal against the valve seat, effectively preventing leakage. Its straight‑through flow path ensures smooth fluid passage with low flow resistance, while the opening and closing action is gentle, minimizing water hammer. The valve body is available in cast steel, cast iron, stainless steel, and other materials; installation is not restricted by flow direction, making it suitable for water supply and drainage, gas, chemical, HVAC, and other piping systems to prevent backflow. It can be installed horizontally or vertically in various operating conditions.

客制化

7x24 售后服务

10–600# Full-bore, soft‑and‑hard double‑seal swing check valve for long-distance pipelines

10–600# Full-bore, soft‑and‑hard double‑seal swing check valve for long-distance pipelines

The swing-type soft-seal check valve features a pivoting‑plate design: the disc opens under the thrust of the flowing medium and closes by gravity and back pressure when flow reverses. The disc is fitted with a rubber or PTFE soft seal that forms a tight, leak‑free interface with the valve seat, ensuring excellent sealing performance. Its straight‑through flow path provides smooth fluid passage with low flow resistance, while the opening and closing action is gentle, minimizing water hammer. The valve body is available in cast steel, cast iron, stainless steel, and other materials; installation is not restricted by flow direction, making it suitable for water supply and drainage, gas, chemical, HVAC, and other piping systems to prevent backflow. It can be installed horizontally or vertically in multiple operating conditions.

客制化

7x24 售后服务

12-600# Full-bore, soft‑and‑hard dual‑seal swing check valve for long-distance pipelines

12-600# Full-bore, soft‑and‑hard dual‑seal swing check valve for long-distance pipelines

The swing-type soft-seal check valve features a pivoting‑plate design: the disc opens under the thrust of the fluid flow and closes by gravity and back pressure when the flow reverses. The disc is fitted with a rubber or PTFE soft seal that forms a tight fit with the valve body seat, delivering excellent sealing performance and effectively preventing leakage. Its straight‑through flow path ensures smooth flow with low hydraulic resistance, while the opening and closing action is gentle, minimizing water hammer. The valve body is available in cast steel, cast iron, stainless steel, and other materials; installation is not restricted by flow direction, making it suitable for water supply and drainage, gas, chemical, HVAC, and other piping systems to prevent backflow. It can be installed horizontally or vertically in multiple operating conditions.

客制化

7x24 售后服务

3-900# Full-bore, soft‑and‑hard double‑seal swing check valve for long-distance pipelines

3-900# Full-bore, soft‑and‑hard double‑seal swing check valve for long-distance pipelines

The swing-type soft-seal check valve features a pivoting‑plate design: the disc opens under the thrust of the fluid flow and closes by gravity and back pressure when the flow reverses. The disc is fitted with a rubber or PTFE soft seal that forms a tight, leak‑free interface with the valve seat, ensuring excellent sealing performance. Its straight‑through flow path provides smooth flow, low fluid resistance, and gentle opening and closing, minimizing water hammer. The valve body is available in cast steel, cast iron, stainless steel, and other materials; installation is not restricted by flow direction, making it suitable for water supply and drainage, gas, chemical, HVAC, and other piping systems to prevent backflow. It can be installed horizontally or vertically in multiple operating conditions.

客制化

7x24 售后服务

10–1500# Full-bore, soft‑and‑hard double‑seal swing check valve for long-distance pipelines

10–1500# Full-bore, soft‑and‑hard double‑seal swing check valve for long-distance pipelines

The swing-type soft-seal check valve features a pivoting‑plate design: the disc opens under the thrust of the process fluid and closes by gravity and back pressure when flow reverses. The disc is fitted with a rubber or PTFE soft‑seal ring that forms a tight seal against the valve body seat, delivering excellent sealing performance and effectively preventing leakage. Its straight‑through flow path ensures smooth flow with low fluid resistance, while the opening and closing action is gentle, minimizing water hammer. The valve body is available in cast steel, cast iron, stainless steel, and other materials; installation is not restricted by flow direction, making it suitable for water supply and drainage, gas, chemical, HVAC, and other piping systems to prevent backflow. It can be installed horizontally or vertically in multiple operating conditions.

客制化

7x24 售后服务

2-150# Full-bore hard-sealed swing check valve for long-distance pipelines

2-150# Full-bore hard-sealed swing check valve for long-distance pipelines

The swing-type hard-sealed check valve features a rocker‑arm swing‑open design, with the disc pivoting around a pin to open and close. Its sealing surfaces are overlay‑welded with hard alloy, providing excellent resistance to high temperatures, high pressures, and erosive media. When the fluid flows in the forward direction, the disc lifts smoothly to allow unobstructed passage; under reverse flow, the disc closes tightly under the combined action of its own weight and back pressure, ensuring a secure metal‑to‑metal seal. The valve body is designed with a full‑bore configuration, minimizing flow resistance and maximizing throughput, and it can withstand operating conditions such as high‑temperature steam, oils, and hot flue gases. It is widely used in power plants, petrochemical facilities, and metallurgical applications for high‑temperature, high‑pressure piping systems, effectively preventing backflow, and is suitable for both horizontal and vertical pipeline installations.

客制化

7x24 售后服务

3-150# Full-bore hard-sealed swing check valve for long-distance pipelines

3-150# Full-bore hard-sealed swing check valve for long-distance pipelines

The swing-type hard-sealed check valve features a rocker‑arm swing‑open design, with the disc pivoting around a pin to open and close. Its sealing surfaces are overlay‑welded with hard alloy, providing excellent resistance to high temperatures, high pressures, and erosive media. When the fluid flows in the forward direction, the disc lifts smoothly to allow unobstructed passage; under reverse flow, the disc closes tightly under the combined action of its own weight and back pressure, ensuring a secure metal‑to‑metal seal. The valve body is designed with a full‑bore configuration, minimizing flow resistance and delivering high throughput capacity. It can withstand operating conditions such as high‑temperature steam, oils, and hot flue gases, making it widely suitable for high‑temperature, high‑pressure pipelines in power plants, petrochemical facilities, and metallurgical applications, where it prevents backflow. It is compatible with both horizontal and vertical piping installations.

客制化

7x24 售后服务

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One-stop service for all types of valve bodies

Zhejiang FLOWTECH. Machinery Co., LTD. (hereinafter referredto FLOWTECH), upgraded from Wenzhou VETZ Valve Co., LTDof which the predecessor was Wencheng Agriculture Toolsfactory founded in late 1980's, covers a total area of 30.000 m² with the first-class hardware and software production capability.The complete production and testing equipments won the praisefrom domestic and overseas experts.

View details

20 +

Industry experience

30000 m²

The factory building covers an area of over 30,000 square meters.

50 +

Sales coverage includes 50+ countries

200 +

More than 200 employees

150000 +

Annual production capacity of over 150,000 tons

优良的设备为保证产品质量