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China API Standard Stainless Steel Swing Check Valve Suppliers - H44W-150LB Factory Size DN40-DN700/2-28
Valve Type: |
Swing check valve |
Structure: |
Swing type |
Standard: |
API609 |
Workmanship: |
Investment casting |
Sealing direction: |
Single-directional |
Sealing grade: |
Zero leakage |
Temperature: |
-40°C < T < 800°C |
Operation: |
Self-starting |
Characteristics
Adopting an integrated casting process, the flow channel is designed as a straight through or angular type, and the inner wall is precision polished to be smooth without dead corners, reducing the flow resistance of the medium; Both flange connection and clamp connection interfaces can be customized to meet different pipeline installation requirements.
Advantages
1
Smooth opening and closing, good resistance to water hammer
The rotary motion trajectory of the valve disc is smooth, with no impact when opened. When closed, it slowly resets with the help of the reverse pressure of the medium. Paired with a balance hammer or damping device, it can further slow down the closing speed, effectively weaken the water hammer effect, and protect the pipeline and upstream and downstream equipment.
2
Strong circulation capacity and minimal pressure loss
The straight through flow channel design reduces turbulent losses in medium flow. When the valve disc is fully opened, it is parallel to the axis of the flow channel and produces almost no additional resistance. It is particularly suitable for conveying large-diameter and high velocity media, reducing the operating energy consumption of power equipment such as pump sets.
3
Reliable sealing, suitable for multiple media working conditions
The metal hard seal and soft seal can be flexibly switched, and the metal seal can withstand high temperature, high pressure, and particle media erosion; Soft sealing can achieve zero leakage sealing under low pressure conditions, suitable for various media such as water, steam, oil, chemical raw materials, etc.
Packing
Standard export wooden case packaging
Application Scenarios
This valve sees extensive utilization in pipeline networks spanning diverse industries, ranging from chemical manufacturing, petroleum refining and marine engineering to pharmaceuticals, food and beverage production, power generation and water treatment. It demonstrates exceptional suitability for applications involving the conveyance of corrosive substances, high-temperature and high-pressure media, as well as high-purity fluid — typical use cases include chemical raw material transfer pipelines, boiler steam pipelines, seawater desalination systems and pharmaceutical process piping.
Frequently Asked Questions
Q
What is the operating temperature range of this swing check valve?
This swing check valve supports a wide operating temperature range from -40°C to 800°C, making it suitable for both cryogenic and high-temperature process applications including steam, hot oil, and chemical pipelines.
Q
What sealing options are available for this valve?
The valve offers both metal hard seal and soft seal configurations. Metal sealing is ideal for high-temperature, high-pressure, and particle-laden media, while soft sealing achieves zero leakage under low-pressure conditions. Both options conform to a zero leakage sealing grade standard.
Q
What connection types are supported?
Both flange connection and clamp connection interfaces are available and can be customized to meet different pipeline installation requirements, ensuring compatibility with a wide range of industrial piping systems.
Q
How does this valve protect against water hammer?
The valve disc follows a smooth rotary motion trajectory with no impact on opening. During closure, the disc resets gradually using reverse medium pressure. When paired with an optional balance hammer or damping device, the closing speed is further reduced, effectively minimizing water hammer effects and protecting pipelines and connected equipment.
Q
In which industries can this swing check valve be applied?
This valve is widely used across industries including chemical manufacturing, petroleum refining, marine engineering, pharmaceuticals, food and beverage production, power generation, and water treatment. Typical applications include chemical raw material transfer, boiler steam lines, seawater desalination systems, and pharmaceutical process piping.
Q
What manufacturing standard does this valve comply with?
This swing check valve is manufactured in compliance with the API609 standard and produced using an investment casting process. The inner flow channel is precision polished to ensure smooth, dead-corner-free surfaces that minimize flow resistance and ensure long-term performance reliability.