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Uralskaya ul., 19, letter D, bld. 5

Tel.: +7(812) 327-7960
Fax: +7(812) 327-7692

 

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Lines of activities >  Rupture Discs

Rupture Discs

1. General information on rupture discs
2. Technical features of rapture discs
     2.1 Rupture disc with burst disc
     2.2 Rupture disc with buckling disc
     2.3 Rupture disc with burst rod
     2.4 Protective coatings
3. Authorization documents
4. Rapture disc laboratory
     4.1 Manufacturing
     4.2 Articles
     4.3 Customers and feedbacks
5. Ordering
     5.1 Notice
     5.2 Datasheet (download)
6. Contacts

1. General information on rupture discs
One of the business lines of LENNIIHIMASH Group is development and manufacturing of rapture discs. The purpose of these products is their usage at fire hazardous and chemically hazardous production facilities of chemical, petrochemical and oil refinery industries, as well as at thermal power and nuclear facilities for protecting process equipment facilities from dangerous overload because of overpressure and(or) vacuum-gauge pressure, produced by the fluids. Rupture discs are used as independent safety devices or in combination with safety relief valves. Specialists of LENNIIHIMMASH Group have many years of experience and broad research capacity in the field of development and manufacturing of these products. While understanding the importance of rapture disc safe operation, the Company is continuously working to improve technical equipment and operational reliability inspection methods.
2. Technical features of rapture discs
     2.1 Rupture disc with burst disc
Rupture discs with burst discs are used at liquid and gaseous fluids. The operating pressure effects concave (or flat) surface.



     2.2 Rupture disc with buckling disc
Buckling discs operate for buckling failure. Rupture discs with buckling discs are used at gaseous fluids. For liquid fluids, they are used in case if there is a gas cushion under the disc with volume not less than 2.4 D3, except for special buckling discs made for liquid fluids. Rupture discs with buckling discs can be installed before safety relief valves, if volume between them is not less than 8 D3.



     2.3 Rupture disc with burst rod
LENNIIHIMASH Group has developed rupture discs with burst rods (patent of the Russian Federation No. 2272207 dated 02.07.2004) for extra-fine actuation provision.

 

 

     2.4 Protective coatings
For protecting discs from aggressive petrochemical and oil refinery environments, LENNIIHIMMASH Group has developed unique surface anti-corrosion coating technologies, applied for rupture disc surface and parts, using titanium nitride and fluoropolymer materials; as well as manufacturing processes of rupture discs made of fluoropolymer materials.



3. Authorization documents
Rapture disks manufactured by LENNIIHIMMASH Group operate not only at fire hazardous and chemically hazardous production facilities of chemical, petrochemical and oil refinery industries, but also at thermal power and nuclear facilities. In order to carry out activities associated with this business line, the Company has full package of the required authorization documents:




License to manufacture equipment for nuclear facility




License to design equipment for nuclear facility




Patent for rapture disk for pressure vessel



Quality management system certificate of conformity
Page 1, Page 2



Certificate of conformity for rapture disks



Certificate for hydraulic test bench for technical equipment used at hazardous production facilities

4. Rapture disc laboratory
     4.1 Manufacturing
Rapture disc manufacturing is carried out using a laser machine and advanced digital measurement equipment.


Fabrication of semi-finished discs


Laser station ML1-12

LENNIIHIMMASH Group has its own test-bed base, certified by the metrological examination.


Test bench


Test bench



     4.2 Articles


 



 

Operating experience of spring-loaded safety relief valves as a part of protection system of process units and oil-gas processing unit piping is a clear demonstration of the decisive influence composition of the fluid being processed has on the equipment life and operational reliability. Lead specialists of LENNIIHIMMASH Group told about operation particularities of spring-loaded safety relief valves and problems of their operation in the article for Journal “Neftepererabotka i neftekhomiya” (Oil Processing and Petrochemicals), No. 6 (2012)
Page 1, Page 2, Page 3, Page 4,
Page 5, Page 6, Page 7

     4.3 Customers and feedbacks
 

High quality level of the products manufactured enables LENNIIHIMMASH Group to become a reliable partner for many companies such as:

LLC KINEF
PAO Kazanorgsintez
AO Sibur-Neftehim
OAO Turboatom
LLC Torgovy dom LUKOIL
OAO Astrakhanky GPZ
OAO Ashinsky metallurgichesky zavod
OAO Kaluzhsky turbinny zavod
Kola NPP
Kalinin NPP
Balakovo NPP
LLC Tomskneftehim
OAO NAFTAN
LLC Stavrolen
Kashira Power Plant
OAO Akron
OAO Saturn-Gazovye turbiny
FGUP Krasnoyarsky mashinostroitelny zavod
AS Latvenergo


Letter of Appreciation, OAO Akron


Letter of Appreciation, Kola NPP


Letter of Appreciation
Kashira Power Plant


Letter of Appreciation
AO Sibur-Neftehim



5. Ordering
     5.1 Notice
To determine a possibility and a manufacturing cost of rapture discs, it is necessary to specify all requested parameters in the datasheet.
When filling out the datasheet, one should pay special attention to the following:

  • Difference between minimum and maximum actuation pressure should be not less than 10%.
  • Minimum actuation pressure should be higher than maximum operating pressure (no false actuation cases of the unit at ordinary process conditions).

In case of questions and problems with filling out the datasheet, please contact our specialists via phone or e-mail.

     5.2 Datasheet (download)
You can download the datasheet for rapture disk manufacturing here.

6. Contacts
Head of laboratory of rupture discs and measuring instruments: Maxim Yuryevich Voronchihin
Tel: +7 (812) 331-73-48
Fax: +7 (812) 327-76-92
E-mail: mpy@niihimmash.com