| Stress state |
Stretch |
Whether it is suitable for flammable and explosive media |
Not applicable |
| Size(mm) |
DN20-DN600 |
Applicable medium phase |
Gas, liquid |
| Burst pressure range at room temperature(MPa) |
0.005-7.5MPA |
There are no debris after blasting |
Yes |
| Back-pressure bracket |
Addable |
In series with safety valves |
No |
| Equipped with gripper type |
LJ,LJB |
Note |
Special mention should be made for vacuum working conditions |
We provide flexible model selection and design services for rupture discs to meet diverse industrial needs.
Model Selection Based on Pressure Conditions
High-pressure Scenarios: When the system pressure is high, the positive arch rupture disc is an ideal choice. Its structural design enables it to withstand high pressure. Through the action of pressure, the arch surface undergoes tensile rupture, thus achieving pressure relief. For example, in some high-pressure gas storage equipment, the positive arch rupture disc can effectively deal with the sudden increase in internal pressure and ensure the safety of the equipment.
Low-pressure Scenarios: For systems with low pressure, the positive arch slotted rupture disc or the reverse arch rupture disc is more suitable. The positive arch slotted rupture disc reduces the bursting pressure by setting slots on the arch surface, and it can act precisely even in a low-pressure environment. The reverse arch rupture disc uses the pressure to make the arch surface unstable and turn over to achieve pressure relief, and it can respond quickly under low pressure. For some low-pressure chemical reactors, these two types of rupture discs can be selected. If the system may experience a vacuum or back pressure, a back pressure support bracket needs to be configured to ensure the normal operation of the rupture disc. For systems with cyclic pressure or pulse pressure, the reverse arch rupture disc can better adapt to such pressure fluctuations due to its good fatigue resistance.
Model Selection Considering Temperature Factors
Different materials of rupture discs have different temperature tolerance levels. A high-temperature environment will have an impact on metal materials and sealing membranes, which may lead to a decline in material performance, and further affect the normal operation and service life of the rupture disc. In high-temperature scenarios, we will select rupture discs made of high-temperature-resistant materials for you. For example, rupture discs made of certain special alloy materials can maintain stable performance in a high-temperature environment and burst and relieve pressure accurately at the set pressure.
Model Selection Based on the Usage Scenarios
Used in Series with a Safety Valve: If it is necessary to use the rupture disc in series with a safety valve, in order to avoid the fragments of the rupture disc blocking the safety valve after it bursts, types without fragments after bursting should be selected, such as the reverse arch toothed rupture disc and the reverse arch grooved rupture disc. When these types of rupture discs are under overpressure, the diaphragm becomes unstable and turns over, and achieves rupture through a special structure without generating fragments, ensuring that the safety valve can function properly later.
Used for Liquid Media: Since the reverse arch rupture disc may have problems such as ineffective pressure relief in liquid media, generally, the reverse arch type is not selected when used for liquid media, and the positive arch rupture disc is recommended instead. The positive arch rupture disc can better adapt to the pressure changes of liquid media and burst and relieve pressure in a timely manner.
Requirements of Special Industries: In industries with extremely high hygiene requirements, such as food processing and pharmaceuticals, we provide sanitary grade rupture discs. It belongs to the reverse arch slotted rupture disc, installed in a standard clamp, and complies with hygiene standards such as ASME/BPE/3A, etc. The size range is usually between 25mm and 100mm, which can effectively prevent media contamination and provide overpressure protection for pipelines at the same time.
Customized Design Services
Our technical team can also carry out customized designs according to your special needs, such as special installation spaces, unique pressure-temperature change curves, special medium characteristics, etc. From material selection, structural optimization to the precise setting of the bursting pressure, every link will be tailored according to your actual working conditions to ensure that the rupture disc can perform at its best in your system and provide reliable protection for the safe operation of your equipment.
List of bursting pressure range of reverse arch bursting disc at 22ºC
| Bleed aperture |
Burst pressure mpa |
| Nominal diameter/mm |
Nominal size/in |
min |
max |
| 20 |
3/4'' |
0.32 |
7.5 |
| 25 |
1'' |
0.3 |
7.5 |
| 32 |
11/4'' |
0.25 |
6.5 |
| 40 |
11/2'' |
0.2 |
5.5 |
| 50 |
2'' |
0.15 |
4 |
| 65 |
21/2'' |
0.1 |
3 |
| 80 |
3'' |
0.05 |
2.8 |
| 100 |
4'' |
0.03 |
2.5 |
| 125 |
5'' |
0.02 |
2.3 |
| 150 |
6'' |
0.01 |
2 |
| 200 |
8'' |
0.01 |
1.8 |
| 250 |
10'' |
0.009 |
1.5 |
The above table only shows the bursting pressure of some sizes, if you have other needs, please contact us!
Mode of transport: Logistics
Place of shipment: Jiangsu
Company Profile:Jiangsu Fashite Chemical Equipment Co., Ltd. is a research and development, production and import and export trade in one of the enterprises. The company takes technology as the guide, design and research as the leader, the company's core competitive advantage is a team of engineers with more than 10 years of senior fine chemical process and equipment design experience. The company is committed to providing better equipment solutions for chemical, pharmaceutical, environmental protection, new energy and other industries, supplying corresponding equipment and parts to solve various problems encountered by industrial customers in actual production. The main products include reactor, heat exchanger, tower, dryer, burst disc, breathing valve, flame arrester, various pipe parts and spare parts. It has provided various equipment and components for chemical, environmental protection, pharmaceutical, metallurgy, new energy and other industries, and has achieved good results and won wide praise from the owners. Provide prod.
Contact: Mr. Ren
Audited Supplier 
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