(0) Shopping cart
You have no items in your shopping cart.
Shopping Categories

    1 1/2 inch Swing Check Valve, DN40, CPVC

    5 out of 5 based on 1 reviews | Write a review
    1 1/2" swing check valve for sale online. It is used in various applications to prevent backflow and ensure unidirectional flow in piping systems. CPVC all-plastic material, one way, DN40, excellent resistance chemical and heat resistance, 1.5-inch swing type check valve is widely used in iron and steel, metallurgy, petroleum, chemical industry, chemical fertilizer, pharmaceutical, electric power, environmental protection, sewage treatment management, etc.
    SKU: ATO-SCV-112
    30-day Returns
    Free Shipping
    Delivery date: 6-12 days

    The provided 1.5 inch (1 1/2") swing check valve is designed to prevent backflow and ensure unidirectional flow in piping systems. It is a 40 mm one way check valve, CPVC material for super chemical resistance and heat resistance and long service life.


    • The check valve can prevent the phenomenon of liquid counter-current from protecting the pump equipment.
    • Because it is a cantilever check valve, there is less resistance to flow.
    • The 1.5 inch swing check valve uses CPVC materials and plays a strong corrosion resistance to prevent acid and alkali fluid.
    • Not only can the valve body be removed from the pipeline, but also the valve cover can be opened for internal inspection and maintenance.


    • Model: ATO-H44F-10S
    • Check Valve Type: Swing
    • Nominal Diameter: 1 1/2 inch/40mm
    • Nominal Pressure: 16kg
    • Drive Mode: Manual
    • Pressure Environment: Low Pressure
    • Type (Channel Position): 2 Ways
    • Flow Direction: One Way
    • Body Material: CPVC
    • Connection Form: Flange
    • Weight: 2.932kg
    • Applicable Medium: Acid-Base concentration higher than 30%, lower than 60%, except hydrochloric acid.

     Dimension (Unit: mm)

    Swing check valve dimension

    Nominal Diameter D1 D2
    DN40 145 110 105 3.88
    L h n-Φ
    170 20 4-Φ18 4-Φ19 4-Φ16


    Swing check valve applications

    Tips: Swing Check Valve vs. Lift Check Valve

    Swing check valves and lift check valves are two types of check valves used in piping systems to prevent backflow, but they operate using different mechanisms.

    A swing check valve has a hinged flap that swings open to allow flow in one direction and swings closed to prevent backflow. When the flow stops, gravity causes the flap to swing closed, thereby preventing backflow. Swing check valves are typically used in applications where the flow rate is low to moderate and the backflow pressure is relatively low.

    In contrast, a lift check valve has a disc that moves up and down to allow flow in one direction and prevent backflow. When the pressure on the upstream side of the valve is greater than the pressure on the downstream side, the disc lifts and allows flow. When the flow stops or reverses, the disc drops back into place, thereby preventing backflow. Lift check valves are typically used in applications where the flow rate is higher and the backflow pressure is greater than what a swing check valve can handle.

    The main difference between a swing check valve and a lift check valve is the direction in which the disc moves to allow flow and prevent backflow. In a swing check valve, the disc swings open and closed, while in a lift check valve, the disc moves up and down. The choice between the two types of valves depends on the specific application and the flow and pressure requirements.

    Existing reviews of 1 1/2 inch Swing Check Valve, DN40, CPVC
    Simple to operate, high quality swing-type valves
    I purchased this check valve and I am very impressed with its performance and quality. First of all, this DN40 size 1 1/2-inch swing check valve is very sturdy and durable, exactly what I expected. It also operates very smoothly with no problems at all. Most of all, I was pleased with how easy it was to install, which took very little time.The choice of CPVC material was also a wise decision, as I knew it would not be affected by corrosion. All in all, this product was an excellent shopping experience and I would have no hesitation in recommending it to others in need.
    From: nancy | Date: 07/09/2023
    Was this review helpful? Yes No (0/0)
    Load more reviews...
    Write your review for 1 1/2 inch Swing Check Valve, DN40, CPVC
    • Only registered users can write reviews
    • Bad
    • Excellent