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The blasting pressure of the bursting disc is greater than the design pressure of the container

Jul 06, 2018

I. requirements for blasting pieces

(1) the unit that manufactures the explosive device shall hold the corresponding manufacturing license for special equipment;

(2) safety accessories that require type test, such as blasting pieces, shall be subject to type test by type test institutions approved by the general administration of quality supervision, inspection and quarantine of the People's Republic of China and obtain type test certificate documents;

(3) the design and manufacture of safety accessories shall comply with relevant safety technical specifications;

(4) the safety accessories shall be accompanied with the product quality certificate documents when they leave the factory, and a solid metal nameplate shall be installed on the products;

(5) regular inspection system shall be implemented for safety accessories, and regular inspection of safety accessories shall be conducted in accordance with the relevant safety technical specifications of these regulations.

Ii. Installation requirements of overpressure relief device

(1) pressure vessel, within the scope of this standard shall be installed overpressure discharge device according to design requirements, an external pressure source from the pressure vessel, and reliable control, overpressure discharge device can not directly installed on the pressure vessel;

(2) using blasting device combined with safety valve structure, shall be in conformity with the relevant provisions of the standard of pressure vessel products, all series blasting piece of the action in the composite structures are not allowed to produce pieces;

The blasting pressure of the bursting disc

Blasting device mounted on the pressure vessel, the design of blasting piece burst pressure is generally not greater than the design pressure of the container, and the minimum burst pressure blasting piece shall not be less than the working pressure of the container.When the maximum allowable working pressure is marked on the design drawing or nameplate, the design blasting pressure of the bursting disc shall not exceed the maximum allowable working pressure of the pressure vessel.

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