Burst Discs Valve Bursting Disk Rupture Disc Pressure Relief Membrane

• Customization: Available
• Customized Product: Yes
• Description: Specialized in Tailor Made Reverse Acting Rupture
• Model NO.: LK-Domed slotted type bursting disc
• Media: Suitable for Gas / Liquid
• Material: 316L, Inconel, Hastelloy, Monel, Titanium and Othe
• Size (DN / Nps): Nominal Diameter From 1/2" to 36" (DN 15 to 900)
• Temperature Range: From -196° to 600°c ( 77, 15 to 873, 15 K)
• Transport Package: Carton
• Specification: 1kg
• Trademark: Original
• Origin: China
• Production Capacity: 10000 Sets/Month

Product Description

Product Description

 

LK-Domed slotted type bursting disc

It is an assembly piece by bursting membrane and sealing lining. On the domed casing of bursting membrane, slots and holes are
available to reduce strength. When over pressure occurs to the protected system, the bursting membrane shall break along the slots
and holes to discharge the pressure.

Product Parameters

Applicable to gas and liquid mediums.
Operating pressure ratio80%
After bursting, there are fragments, and it is not recommended to use it together with safety valve in series connection.
It is provided with support and can bear back pressure.
Its max. applicable temperature is determined by the material of the sealing lining. (For the material of sealing lining and its application temperature, see the following table.)

LJA, LJB and LJC clamping holders are used with LK rupture disc.

 

For the material of sealing lining

MATERIAL	PTFE	FEP	Nickel	Aluminum	Austenitic stainless steel
Applicable temp.	-40ºC~260ºC	-40ºC~200ºC	-196ºC~530ºC	-196ºC~400ºC	-196ºC~530ºC

Processing pressure range: minimum/maximum burst pressure 22ºC Unit: MPa  

DN Size	Sealing Membrane	Pressure (MPa) - Min	Pressure (MPa) - Max
DN15	PTFE/FEP	0.25	6
DN25	PTFE/FEP	0.25	6
DN40	PTFE/FEP	0.1	4.5
DN50	PTFE/FEP	0.05	4
DN80	PTFE/FEP	0.04	3
DN100	PTFE/FEP	0.03	2.8
DN150	PTFE/FEP	0.02	2.2
DN200	PTFE/FEP	0.01	2
DN250	PTFE/FEP	0.01	1.5
DN300	PTFE/FEP	0.01	1.2

 

DN Size	Sealing Membrane	Min Pressure (MPa)	Max Pressure (MPa)
DN400	PTFE/FEP	0.01	1
DN500	PTFE/FEP	0.005	0.8
DN600	PTFE/FEP	0.005	0.7
DN700	PTFE/FEP	0.005	0.5
DN800	PTFE/FEP	0.005	0.4
DN900	PTFE/FEP	0.005	0.3
DN1000	PTFE/FEP	0.005	0.2
DN1100	PTFE/FEP	0.005	0.2
DN1200	PTFE/FEP	0.005	0.2
DN1600	PTFE/FEP	0.005	0.1

Highest Applicable Temperature of Bursting Disc Materials:

Bursting Disc Material	Highest Applicable Temperature  ( ºC )
Aluminum	100
Copper	200
Nickel	400
Austenitic stainless steel	400
Copper-nickel alloy(Monel)	430
Hastelloy	480
Chrome nickel alloy (Inconel)	480
Graphite	200
Note: When the surface of the bursting disc is coated with sealing lining or protection lining, the influence from the coating material to the applicable temperature shall be accounted.

The following table is for reference the dimensions of the gripper as determined by HG20615-2009 PN20 FF or RF plane:

Discharge aperture(mm)	Holder outside diameter (mm)		Thickness (mm)
	Min	Max
DN15	35	44	35
DN25	51	63.5	35
DN40	73	82.5	35
DN50	92	102.5	35
DN 80	127	134.5	35
DN100	157.5	172.5	35
DN150	216	219.5	40
DN200	270	276.5	45
DN250	324	336	45

Highest Applicable Temperature of Bursting Disc Materials:

Bursting Disc Material	Highest Applicable Temperature  ( ºC )
Aluminum	100
Copper	200
Nickel	400
Austenitic stainless steel	400
Copper-nickel alloy(Monel)	430
Hastelloy	480
Chrome nickel alloy (Inconel)	480
Graphite	200
Note: When the surface of the bursting disc is coated with sealing lining or protection lining, the influence from the coating material to the applicable temperature shall be accounted.

Note:The technological parameters of the protected equipment are the basis for selection of rupture disosafety device models. Whether the parameters are accurate is directly related to the effect of product modelselection, the realization extent of product technical characteristics and the service cycle.

Application

Chemical & Petrochemical Industry
* Reactor/Pressure Vessel Protection: Prevents overpressure explosions caused by uncontrolled chemical reactions or abnormal temperature rises.
* Pipeline Systems: Isolates different pressure sections to avoid pressure fluctuation propagation.
* Storage Tank Relief: Protects liquefied gas or toxic substance tanks from overpressure risks.
Energy & Power
* Boiler Systems: Acts as a supplement to safety valves, rapidly releasing steam pressure.
* Gas Turbines/Nuclear Plants: Prevents pressure surges caused by cooling system failures
Pharmaceutical & Food Industry
* Sterile Production Lines: Provides leak-tight protection for sterilization tanks or fermentation vessels to avoid contamination risks.
Aerospace
* Fuel Tanks: Releases pressure under extreme temperature or pressure variations to ensure flight safety. Environmental Protection & Fire Safety
* Dust Explosion Protection: Used for explosion relief in dust collectors, cyclone separators, etc.
* Firefighting Systems: Suppresses shockwaves from combustible gas explosions.
 

Our Advantages

Our company is a science & technology-oriented enterprise specializing in rupture disk safety devices, rooted in Chinese aerospace engineering technology. The development of our first rupture disk for aerospace applications began in 1959. In 1981, this specialized technology was successfully adapted for civilian use, resolving long-standing domestic production challenges of industrial safety devices across multiple sectors in China. In 1986, the company obtained the Manufacturing License for Rupture Disk Devices issued by the Ministry of Labor. In 2000, it was certified as a high-tech enterprise by the Science & Technology Department of Liaoning Province.

Packaging & Shipping

 

1.Carefully package each product to give customers the best product experience.

2.The most economical, convenient and safe mode of transportation to ensure that the goods reach the hands of customers at the fastest speed.

3.Always put customer requirements in the first place, to customer requirements for guidance.

FAQ

1.who are we?
We are based in Shenyang, China, start from 1959,sell to Domestic Market(50.00%),Eastern Asia(8.00%),North America(8.00%),Eastern Europe(6.00%),South Asia(6.00%),Western Europe(4.00%),Africa(4.00%),Southeast Asia(3.00%),Southern Europe(3.00%),South America(3.00%),Central America(3.00%),Northern Europe(2.00%).    There are total about 51-100 people in our office.

2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;

3.what can you buy from us?
Various types of bursting disc safety devices

4.why should you buy from us not from other suppliers?
We have more than 60 years of design and development experience;
we can produce Various types of bursting disc safety devices and so on.
not only has the advanced management concepts and business culture, and also has a vibrant sales team.

5.what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW;
Accepted Payment Currency:USD,EUR,JPY,HKD;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,PayPal,Cash;
Language Spoken:English,Chinese