Zhejiang Sunawei Valve Co., Ltd
+86-577-67330098
Contact Us
  • Tel: +86-577-67330098
  • Fax: +86-577-67998131
  • Mob: +8618757788866
  • Email: snv@sunawevalve.com
  • Add: Anfeng Industrial, Oubei Town, Wenzhou City, Zhejiang, China
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Non-return Valve

Material Structure: ASTM A216 WCB for high temp. service ASTM A352 for low-temperature service and ASTM A351 CF8, CF8M for cast stainless steel valves
Working Pressure: Class150LB, Class300LB; Class600LB; Class900LB; Class1500LB; Class2500LB;
Nominal Diameter: NPS1/2~24”;DN15~DN600mm
WorkingTemperatur: -29to650ºC
Shipping & Delivery: 30-45 days lead time; deliver by ship from Ningbo port or Shanghai port

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  • Description

    Product description

    Non-return Valve is a fluid control device designed to ensure that fluid can only flow in one direction in the pipeline system. The valve has two ports, one for fluid entry and the other for fluid exit. When the fluid flows in the predetermined direction, the Non-return Valve will automatically open to allow the fluid to pass smoothly; when the fluid tries to flow in the opposite direction, the valve will automatically close to prevent the backflow of the fluid. It is used in water supply systems, chemical pipelines, and oil and gas pipelines.

     

     

    Features
    Improve system operation stability

    Non-return Valve ensures that the fluid in the pipeline only flows in the predetermined direction through precise design, preventing system fluctuations caused by reverse flow of fluid in pump stations, pipelines or storage tanks. Reverse flow of fluid not only poses a safety hazard, but may also affect the normal operation of the equipment. By preventing backflow, Non-return Valve can keep the entire pipeline system with more stable pressure and flow, especially in conditions that require continuous and stable operation, avoiding frequent startup and shutdown of the equipment.


    Outstanding seismic and shock resistance
    The disc design and valve body structure of Non-return Valve give it good seismic and shock resistance. In some industrial pipeline systems, there may be pressure fluctuations or external vibrations, and this design effectively prevents valve disc failure or poor sealing caused by vibration. Especially in industries such as oil and gas, pipeline systems may operate in harsh environments.


    Suitable for high-load environments
    In high-flow and high-load working environments, the structural design of the Non-return Valve can effectively prevent the valve disc from being damaged by fluid impact. Compared with conventional check valves, the Non-return Valve ensures that it can work stably under high-flow and high-flow conditions by strengthening the valve body strength and selecting high-strength materials. This makes it particularly suitable for industries such as oil, gas, and mining, where pipeline systems often face extremely high flow and pressure requirements.


    Low-noise operation
    Traditional check valves may generate large impact noise during the closing process of the valve disc, while the Non-return Valve can reduce this noise through the slow closing design of the valve disc. Especially in environments where low-noise operation is required, such as urban water and gas supply pipelines, the Non-return Valve can provide a quieter working environment by reducing the impact sound when the valve is closed, which meets the requirements of modern industry for noise control.

     

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    Why choose us?

    • Our customer service team is available 24/7 to answer any questions or concerns regarding our Check Valve products.
    • We emphasize creating value for the Non-return Valve industry with rich and diversified product types, coordinated and symbiotic organic planning, and professional and comprehensive continuous operation.
    • We have a large inventory of Check Valve products ready for immediate shipment.
    • Attracting, developing and valuing our employees is how we create long-term value for our stakeholders.
    • We have a strong logistics team that can manage shipping and delivery of Check Valve products anywhere in the world.
    • Our marketing network is becoming more and more perfect, and our products are deeply loved and affirmed by customers.
    • Our Check Valve products undergo rigorous testing to ensure they meet or exceed industry standards.
    • Our company has been recognized and praised by experts and businessmen at home and abroad with high-quality Non-return Valve and competitive prices and first-class service .
    • Our Check Valve products are made with the highest quality materials and precision engineering.
    • The core values of our company are: adhere to customer orientation, strive and forge ahead, always strive for the first place, share and win-win results, and seek truth from facts. Talents are the first resource of the company. We should strive to create an open and inclusive management environment of "attracting, activating and achieving talents", and build a common organization belonging to high emerging people.

     

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