Reverse Acting Rupture Disc
Size range: 20mm-300mm
Burst pressure range: 1barg-15barg
Operational at up to 90% of certified burst pressure (not exceeding MAWP)
Full vacuum capability without backpressure support
Suitable for gaseous media
Excellent fatigue resistance
Series installation with safety valves available
Standard materials: SS316, Inconel 625, Monel 400, Nickel 200,Aluminum 6061 (custom alloys optional)
Nameplate includes full burst disc specifications
Reverse Acting Crocodile Tooth Rupture Disc / YE Series
Product Overview
The convex of reverse acting rupture disc is on the high pressure process side. When the metal disc is compression-loaded, the disk reverses with a crocodile tooth diaphragm cutting it to relieve pressure.
Bursting Disc Device
A bursting disc device is a pressure relief device that cannot be reclosed. It is activated by the static pressure at the inlet and relieves pressure through the rupture of a pressure-bearing diaphragm. Simply put, it is a one-time pressure relief device: under the set bursting temperature, when the pressure difference between the two sides of the bursting disc reaches a predetermined value, the bursting disc will act (rupture or fall off) and release the fluid.
The design and manufacture of bursting discs shall comply with the provisions of relevant safety technical specifications. A product quality certificate shall be provided along with the product when it leaves the factory, and a firm metal nameplate shall be attached to the product.
Options
Fluoroplastic lining or coating.
BI burst indicator sensor
*Note: Temperature resistance of lining and BI is lower than the strength membrane
Suitable for safety valve isolation/
When installed beneath a safety valve, the rupture disc isolates the valve's working components from corrosive media.
Venting assembly components: pressure gauge, tee fitting, relief valve, and adapter nipple
Structural Features:
When the rupture disc reaches the burst pressure, it first loses stability and inverts. Subsequently, the surrounding area of the disc is sheared off by the tooth ring behind it. The sheared part is held in place by the retainer to prevent it from flying out.
Technical Characteristics:
· Suitable for low-pressure applications.
· Excellent backpressure resistance; capable of withstanding full vacuum without the need for a support bracket.
· No fragments are generated during bursting.
· Can be used in series with a safety valve.
· The allowable operating pressure can reach up to 90% of the burst pressure.
Product Characteristics:
Suitable for gas-phase and dust media.
Applicable to low-pressure working conditions.
No fragments generated after bursting; recommended for series use with safety valves.
Capable of withstanding full vacuum conditions without the need for additional backpressure brackets.
The maximum operating pressure can reach up to 90% of the minimum allowable burst pressure.
If fluorine coating or polytetrafluoroethylene (PTFE) cladding is required, the maximum service temperature is 260℃.
Product Parameters
Size | Nickel | Monel | Inconel | ||||||||||
NPS (in) | DN (mm) | (Psig) | (barg) | (Psig) | (barg) | (Psig) | (barg) | ||||||
min. | max | min. | max | min. | max | min. | max | min. | max | min. | max | ||
1" | 25 | 29 | 174 | 2 | 12 | 29 | 174 | 2 | 12 | 72.5 | 217.5 | 5 | 15 |
1.25" | 32 | 20.3 | 174 | 1.4 | 12 | 20.3 | 174 | 1.4 | 12 | 50.75 | 217.5 | 3.5 | 15 |
1.5" | 40 | 14.5 | 174 | 1 | 12 | 14.5 | 174 | 1 | 12 | 36.25 | 217.5 | 2.5 | 15 |
2" | 50 | 11.6 | 116 | 0.8 | 8 | 11.6 | 116 | 0.8 | 8 | 29 | 145 | 2 | 10 |
2.5" | 65 | 7.25 | 116 | 0.5 | 8 | 7.25 | 116 | 0.5 | 8 | 21.75 | 145 | 1.5 | 10 |
3" | 80 | 7.25 | 116 | 0.5 | 8 | 7.25 | 116 | 0.5 | 8 | 14.5 | 145 | 1 | 10 |
4" | 100 | 7.25 | 87 | 0.5 | 6 | 7.25 | 87 | 0.5 | 6 | 14.5 | 130.5 | 1 | 9 |
5" | 125 | 7.25 | 72.5 | 0.5 | 5 | 7.25 | 76 | 0.5 | 5.3 | 14.5 | 130.5 | 1 | 9 |
6" | 150 | 7.25 | 58 | 0.5 | 4 | 7.25 | 65.25 | 0.5 | 4.5 | 14.5 | 87 | 1 | 6 |
8" | 200 | 7.25 | 43.5 | 0.5 | 3 | 7.25 | 43.5 | 0.5 | 3 | 14.5 | 58 | 1 | 4 |
10" | 250 | 7.25 | 36.25 | 0.5 | 2.5 | 7.25 | 39.15 | 0.5 | 2.7 | 14.5 | 43.5 | 1 | 3 |
Max. Temp. | 400℃ | 430℃ | 480℃ | ||||||||||
Size | Stainless Steel | Hastelloy C-276 | |||||||
NPS (in) | DN (mm) | psig | barg | psig | barg | ||||
min. | max | min. | max | min. | max | min. | max | ||
1" | 25 | 72.5 | 217.5 | 5 | 15 | 87 | 217.5 | 6 | 15 |
1.25" | 32 | 50.75 | 217.5 | 3.5 | 15 | 58 | 217.5 | 4 | 15 |
1.5" | 40 | 36.25 | 217.5 | 2.5 | 15 | 43.5 | 217.5 | 3 | 15 |
2" | 50 | 29 | 145 | 2 | 10 | 43.5 | 145 | 3 | 10 |
2.5" | 65 | 21.75 | 145 | 1.5 | 10 | 36.25 | 145 | 2.5 | 10 |
3" | 80 | 14.5 | 145 | 1 | 10 | 14.5 | 145 | 1 | 10 |
4" | 100 | 14.5 | 130.5 | 1 | 9 | 14.5 | 130.5 | 1 | 9 |
5" | 125 | 14.5 | 130.5 | 1 | 9 | 14.5 | 130.5 | 1 | 9 |
6" | 150 | 14.5 | 87 | 1 | 6 | 14.5 | 87 | 1 | 6 |
8" | 200 | 14.5 | 58 | 1 | 4 | 14.5 | 58 | 1 | 4 |
10" | 250 | 14.5 | 43.5 | 1 | 3 | 14.5 | 43.5 | 1 | 3 |
Max. Temp. | 400℃ | 530℃ | |||||||
About us
Shandong Zhengda Weiye Safety Equipment Co., Ltd. is a high-tech enterprise with independent intellectual property rights, dedicated to providing the society with safety pressure relief products and solutions.
Its main products include rupture discs, safety valves, breather valves, flame arresters, powder explosion protection equipment, bending pin valves, etc.
Located in Jinan City, Shandong Province, Shandong Zhengda Weiye Safety Equipment Co., Ltd. specializes in the R&D and production of safety pressure relief devices and explosion-proof devices. After years of development, the company has provided safety pressure relief and explosion-proof technologies for numerous domestic enterprises, and holds a number of domestic and international patents and technologies. It is a one-stop company that provides safety pressure relief solutions. The certifications obtained by the company include the Special Equipment Manufacturing License of the People's Republic of China, ISO9001 certification, and national explosion-proof certification.
