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    2" Spring Loaded Pressure Relief Valve, DN50

    2 inch spring loaded pressure relief valve with DN 50 nominal diameter, the working temperature is ≤65 ℃ in cold water, and hot water ≤95 ℃, nominal pressure is 16 MPa. The adjustable pressure relief valve is widely used in oil and gas production systems, compressor stations, gas transmission (pipeline) facilities, storage systems, in all gas processing plants, and whenever there is a need to exhaust the overpressure volume of gas, vapor, and/or liquid.
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    ATO spring loaded pressure relief valve automatically opens at a set pressure and provides proportional and slow pressure relief. A main application is the protection of a pump in a closed circuit.


    • The pressure relief valve with a gas-tight and compact design which can be adjusted without disassembly.
    • Compact size can choose horizontal or vertical installation, easy to install and maintain, simple and convenient to adjust the pressure and easy to operate.
    • The active parts of the sealing ring such as the piston and valve sleeve are sprayed with Teflon material, which can effectively reduce the wear of the sealing ring and prolong the service life of the product.


    • Model: ATO-YS713X-16P-50
    • Size: 2 inch
    • Nominal diameter: DN50
    • Material: 304 stainless steel
    • Import and export pressure ratio: Maximum 3: 1  
    • Working temperature: Cold water ≤65 ℃, hot water ≤95 ℃
    • Nominal pressure: 16 MPa
    • Medium: Drinking water, clean water


    2 inch preesure relief valve dimension


    Preesure relief valve dimension


    • It is recommended to install an exhaust valve on the top of the riser to make the pressure reducing valve work more smoothly.
    • Before installing the pressure relief valve, check the valve for unusual items and be sure to flush the pipeline.
    • Installation method: Horizontal or vertical installation, single valve set.

    Pressure Relief Valve Application

    Pressure relief valve application

    Tips: How to maintain a pressure relief valve?

    1. 1. Avoid keeping dirt and debris from entering the decompression protection system of the decompression valve. The pipe network of the decompression system of the newly built or renovated project is likely to leave sand, hemp, and sundries. Before putting it into operation, it should generally be washed with water. After meeting the cleaning requirements, the pressure relief valve and filter element should be installed at last, so as to prevent debris from flowing into the pressure relief valve and prevent the core of the pressure relief valve from being stuck. After the system starts to work, whether the water flow of the decompression system is guaranteed to be smooth or not is closely related to the flow capacity of the filter installed on the system. If the filter element is seriously adsorbed by debris, it will affect the work of the decompression valve. Filters are checked regularly to remove contamination in time.
    2. The spare pressure relief valve group should be rotated regularly. Most of the domestic water supply pressure relief valve pressure relief protection system of high-rise buildings is set up in vertical partitions of water supply, generally on the main pipe of each water supply partition. Both sides of the decompression passage are supplemented by gate valves or butterfly valves, which can open and close any decompression passage. In order to ensure that the two sets of decompression valve passages in parallel can work normally, they are exchanged in turn once a month. Fouling, the valve core of the pressure relief element will get stuck and fail.
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