LocationTianjin, China (Mainland)
EmailEmail: sales@likevalves.com
PhonePhone: +86 13920186592

Micro-resistance slow lockup check valve with counter weight

Short Description:

Micro-resistance slow-closing check valve is used in water supply pipeline. It is installed at the outlet of pump to prevent medium backflow and eliminate destructive water hammer. It can effectively reduce the pressure of water hammer when the valve closes and ensure the safe operation of the pipeline network. It has the characteristics of light disc, large opening, remarkable power saving effect, small fluid resistance, novel design of water hammer eliminating mechanism, stable and reliable sealing performance, wear resistance, long service life, stable operation, no vibration, no noise and so on.

  • Warranty Time: 1 year
  • Customized support: OEM, ODM
  • Certificate: API, ISO, CE, RoHS
  • MOQ: 1 Set
  • Place of Origin: China
  • Brand Name: LIKV
  • Product Detail

    OEM/ODM Service

    Product Tags

    Micro-resistance slow-closing check valve, also known as the check valve, its role is to prevent medium backflow in the pipeline. The opening and closing parts open or close by themselves depending on the medium flow and force to prevent the medium backflow valve is called a check valve. Check valves belong to automatic valves. They are mainly used in pipelines where media flow in one direction. Only one direction is allowed to flow in order to prevent accidents. It is suitable for cleaning medium, not for medium containing solid particles and high viscosity.



    Micro-resistance slow-closing check valves are suitable for nominal pressure PN1.0 MPa~42.0 MPa, Class150-2500; nominal diameter DN15-1200mm, NPS1/2-48; working temperature-196-540 C pipelines to prevent medium backflow. By choosing different materials, it can be applied to water, steam, oil, nitric acid, acetic acid, strong oxidizing medium and urea and other media.


    Main material

    Carbon steel, low temperature steel, dual phase steel (F51/F53), titanium alloy, aluminium bronze, INCONEL625, SS304, SS304L, SS316, SS316L; chromium-molybdenum steel, Monel (400/500), 20 # alloy, Harrington alloy and other metal materials.


    Structural characteristics

    1. Structural length is short, and its structural length is only 1/4~1/8 of the traditional flange check valve.

    2. Small size, light weight, its weight is only 1/4~1/20 of the traditional micro-blocking check valve.

    3. The valve disc closes quickly and the water hammer pressure is low.

    4. Horizontal or vertical pipes are available and easy to install.

    5. Flow passage is unobstructed and fluid resistance is small.

    6. Sensitive movement and good sealing performance

    7. Short disc stroke and low impact of valve closure

    8. Integral structure, simple and compact, beautiful appearance

    9. Long service life and high reliability


    Performance specification

    Nominal diameter(mm) 40~800
    Nominal pressure 1.0 1.6 2.5
    Ps(MPa) housing 1.5 2.4 3.75
    Seal up 1.1 1.76 2.75
    Maximum working pressure 1.0 1.6 2.5
    working temperature The temperature of <80 ~C can reach 200 ~C according to user's requirement.
    Applicable medium Water, Weak Corrosive Medium


    Major Component Materials

    Part name Material name
    Body and bonnet Gray Iron, Cast Steel, Ductile Iron
    Disc Rubber assemblies
    Valve shaft Stainless steel


    Design drawings



    Main Dimensions Table

    DN(mm) L H B
    40 200 300 220
    50 230 300 270
    65 290 320 290
    80 310 354 300
    100 350 350 320
    125 400 380 340
    150 480 500 410
    200 500 580 450
    250 600 670 550
    300 700 730 580
    350 800 820 630
    400 900 920 700
    450 1000 950 800
    500 1100 1100 900
    600 1300 1200 990
    700 1400 1550 1120
    800 1500 1700 1300

    American LIKE valves is a global supplier of flow control products,solution and services with a diverse range of products, for infrastructure and industrial fluid control. Our solution is an integral key part of the pipeline management solution, adopting advanced mechanical technology and automation system, so that the products always maintain excellent quality, and responding to customer needs correctly and fast. LIKE valve's customers and markets cover water supply and drainage, water treatment, heating, construction, fire fighting, HVAC systems, power plants, petrochemical, natural gas pipelines, ships and other fields.
    LIKE valves always adhere to the quality policy of "quality is the life of products, products are the life of LIKE", have been passed ISO9001, ISO14001, OHSAS18001, TS, API, CE, ROHS,CCC燾ertificate of professional testing institutions. We take customer satisfaction as the purpose, take our mission to realize the value by supply excellent service to our customers, strive to do even better on each product, each service, to provide continuous guarantee for customers all over the world.
    In 2016, LIKE valve products entered Chinese market. In 2017, LIKE Valve was registered Like Valves (Tianjin) Co., LTD. in China, a joint venture of the United States and China, dedicated to serving customers in the Asia-Pacific region and China.
    LIKE valve adhering to the concept of "integrity, innovation, cooperation and mutual benefit", building our brand with product quality and customer satisfaction; improving and surpass ourselves with unremitting pursuit and sustainable development. "LIKE Dream" will contribution to "China Dream" more wonderful!


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