Working principle of Reverse Buckling Rupture Disc:
The Reverse Buckling Rupture Disc diaphragm is arched, and the convex surface is on the high-pressure side of the pressure system. When it is in motion, it flips and ruptures or falls off due to compression instability.
Reverse buckling rupture discs can be divided into the following types according to their structural form:
1. Reverse buckling knife holder type rupture disc. After the diaphragm flips, it is cut due to collision with the knife holder welded on the holder. The knife holder has a cross shape, annular shape (with toothed blade) or combined shape;
Technical characteristics of Reverse Buckling Rupture Disc:
Material options: stainless steel, Hastelloy, nickel, etc.;
Reverse Buckling Rupture Disc is applicable to gas phase medium and gas-liquid phase medium, with a wide range of bursting pressure;
Good back pressure bearing capacity, can withstand full vacuum without a bracket;
Operation ratio is 90%;
Fatigue resistance, can be used for pulsating pressure force occasions;
There are no fragments after the explosion, and it can be used in series with the safety valve;
2. The reverse arch crocodile tooth type bursting disc, the diaphragm is originally embedded in the narrow groove of the clamp, and it falls off by itself after instability and flipping;
Technical characteristics:
Suitable for low pressure occasions;
Good back pressure bearing capacity, can withstand full vacuum without bracket;
No fragments during explosion, can be used in series with the safety valve;
Optional size DN25-DN500;
Optional pressure 0.1mpa-0.8mpa;
Operation ratio is 90%.
3. The reverse arch grooved bursting disc, the concave surface of the diaphragm is engraved with a cross-shaped weakening groove, and it opens into 4 pieces due to rupture when flipped.
Technical features of Reverse Buckling Rupture Disc:
A wide range of pressure selection, the pressure range can be changed by notching;
Applicable to gas-liquid and gas-phase media;
Good back pressure resistance, can withstand full vacuum without bracket;
No fragments during blasting, can be used in series with safety valve;
No sparks during blasting;
The operating ratio is 90%;
Note: Under the same blasting pressure, the thickness of the reverse arch blasting disc is several times that of the positive arch blasting disc, and the thickness deviation has a relatively small impact on the blasting pressure, so the manufacturing accuracy is relatively high.
Our company produces various types of blasting discs. If you have any related questions or want to know more about our Reverse Buckling Rupture Discs, you can contact us for consultation at any time.
