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Easy To Reset ARBPP PPressure Relief Device 1 – 725psi Hard Seal

Easy To Reset ARBPP PPressure Relief Device 1 – 725psi Hard Seal

    • Easy To Reset ARBPP PPressure Relief Device 1 – 725psi Hard Seal
    • Easy To Reset ARBPP PPressure Relief Device 1 – 725psi Hard Seal
  • Easy To Reset ARBPP PPressure Relief Device 1 – 725psi Hard Seal

    Product Details:

    Place of Origin: CHINA
    Brand Name: QIYAO
    Certification: ASME, GB
    Model Number: ARBPP

    Payment & Shipping Terms:

    Minimum Order Quantity: 1 unit
    Price: Customized Product, Quoted Case By Case
    Packaging Details: Seaworthy packing
    Delivery Time: 3~6 months
    Payment Terms: L/C, T/T
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    Detailed Product Description
    Application: Pressure Relief For Gas Medium Material: Stainless Steel
    Advantage: High Accuracy, Easy To Reset Connection: Flanged
    Warranty Period: 12 Months Since Operation Or 18 Months Since Delivery
    High Light:

    pressure relieving devices


    gas pressure relief valve

    Easy To Reset ARBPP PPressure Relief Device 1 – 725psi Hard Seal


    ARBPP Pressure Relief Device

    As a member of ARBP famliy of pressure relief device provided by SMDERI, ARBPP type Pressure Relief Device is a over pressure protection device to be used in petrochemical industries, offshore platforms and etc. and is a non-reclosing pressure relief device.


    I Work process/flow

    Initial status: The valve is closed. The valve plate and the seat are tightly connected and sealed with eccentric parabola shape sealing surface. Meanwhile, the valve plate of three-eccentric butterfly valve is pushed forward due to the eccentric status, so a closing torque is added to strengthen the sealing.

    Normal operation status: Under normal working conditions, upstream medium gas acts on the butterfly valve inlet. There is a pressure conduit between the valve inlet and the cylinder and through this conduit, the medium pressure is transferred into the cylinder and directly acts on the piston integrated to the valve rod with nuts. The buckling pin is at the other end of the valve rod. The actuator is controlled by the valve rod mechanism. When the medium gas pressure is lower than the set relief pressure, i.e., the load forced on the pin is less than the critical load, the pin keeps stable straight status and the valve plate and seat keep firmly sealed, and thus the valve is in a stable sealed status.

    Relief status: As the medium gas pressure increases and reaches the set value, the pressure exerted on the piston will be transmitted to the buckling pin through the valve rod and the load approaches the critical load. As long as it reaches the yield point of the buckling pin, the pin buckles in milliseconds, and thus reduces the length in valve rod direction significantly. Therefore, the valve rod moves quickly and switches the pathway. The change of pathway causes the pneumatic actuator to open the valve. Once the valve is open, the medium inlet and outlet are connected and the high pressure media gas is released instantaneously.

    When the valve opens, the operator can determine whether the pressure relief takes place or not by observing the valve appearance; or the position switch mounted to corresponding position transmits the pressure relief signal to the remote control room and informs the operator about the valve position.


    II Specification

    Equipment ARBP Pressure Relief Device




    1” – 36”
    Fabrication standard ASME BPV VIII
    Design standard ASME BPV VIII, SH3009-2013
    Design pressure 1 – 725psi
    Design temperature

    -150℃ - 300℃

    Pressure class CL150- CL600
    Set pressure 1 – 725psi
    Set pressure tolerance

    5% (down to 3% upon request)

    Operation pressure ratio up to 95%
    Applicable medium Gas media


    Main interlocked alarms Position switch
    Type of connection Flange
    Type of seal Hard seal


    III Advantages

    --- High accuracy of the relief pressure: usually within±5%;

    --- The bucking pin is not affected by the cyclic change of the pressure inside the pipeline;

    --- The bucking pin is not exposed to the medium;

    --- It is easy to judge if pressure relief takes place;

    --- It is easy reset the valve with low cost for shut down;

    --- No fragment is generated from the relief process;

    --- Low operation cost on long term service.


    IV Application

    Easy To Reset ARBPP PPressure Relief Device 1 – 725psi Hard Seal

    Project: Ground Flare System of methanol plant for the methanol production complex

    Designed capacity of the plant: 74480kg/h + 1837kg/h

    Source of signal: Pressure signal of flare gas manifold


    Contact Details
    Shanghai Marine Diesel Engine Research Institute

    Contact Person: Mrs. Tan Ling

    Tel: 86-21-51151156

    Fax: 86-21-51711742

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