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High Reflief Accuracy ARBPO Pressure Relief Device For Reliable Overpressure Protection

Shanghai Marine Diesel Engine Research Institute

High Reflief Accuracy ARBPO Pressure Relief Device For Reliable Overpressure Protection

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Price : Customized Product, Quoted Case By Case

Place of Origin : CHINA

Brand Name : QIYAO

Certification : ASME, GB

MOQ : 1 unit

Packaging Details : Seaworthy packing

Delivery Time : 3~6 months

Payment Terms : L/C, T/T

Model Number : ARBPO

Fuction : Pressure reliefing

Advantage : No debris, easy to rest, high accuracy

Material : stainless steel

Warranty period : 12 months since operation or 18 months since delivery

Design standard : ASME

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High Reflief Accuracy ARBPO Pressure Relief Device For Reliable Overpressure Protection

ARBPO Pressure Relief Device

ARBPO type Buckling Pin Pressure Relief Device, a patent product recently developed by SMDERI, is a kind of over pressure protection device to be used in petrochemical industries, offshore platforms and etc., which is a type of non-reclosing pressure relief device.

I Work principle

The static pressure or pressure drop at the valve inlet drives the pressure sustained buckling pin to bend and trigger the valve open promptly in order to release the system pressure.

Initial status: The valve disk contacts the valve seat and they are sealed with a seal. The buckling pin is installed between the valve cap and valve rod. The buckling pin exerts a force to the valve rod in return, which is transferred to the valve disc and strengthens the sealing accordingly.

Normal operation status: The upstream medium gas flows into the sealed system. When the gas pressure is less than the set pressure, so the load on the pin transferred through the rod is less than the critical load for buckling. Therefore, the buckling pin remains straight and the disk & the seat are still tightly sealed. The valve is now sealed and stable.

Relief status: As the medium gas pressure increases and reaches the set value, the load exerted on the pin through the valve rod 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. Meanwhile the valve disc leaves the valve seat quickly and the valve opens. Once the valve is open, the medium inlet and outlet are connected and the high pressure media gas is released instantaneously.

High Reflief Accuracy ARBPO Pressure Relief Device For Reliable Overpressure Protection

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
Model

ARBP07

Size

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

Control

Automatic
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 Clients

China National Petroleum Corporation (CNPC)

China Petrochemical Corporation (Sinopec)

China National Offshore Oil Corporation (CNOOC)

Wanhua Chemicals Group Co., Ltd.

Xinpu Olefin (Taixing) Co., Ltd.


Product Tags:

pressure relieving devices

      

pressure safety relief valve

      
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