Catalog_Best_Availability_Bursting_Disk_EN
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Best Availability Safety valves and upstream bursting discs in combination CATALOG The-Safety-Valve.com

Product overview LESER Safety Valves for every industrial application Clean Service Best Availability Safety valves

Contents Overview Chapter/Page Chapter/Page General Information 00/01 Safety valves and bursting discs in combination General Information 00/01 02/01 Applications, General design features 00/02 How to order – Safety valves and bursting discs in combination IG-KUB two-piece holder 02/03 BT-KUB bursting disc 02/04 Space monitoring device 02/05 Combination 02/06 Chapter/Page Safety valves and bursting discs in combination Components 01/01 Functions and technical design 01/02 Components – BT-KUB bursting disc 01/03 Components – Space monitoring device 01/04 Codes and standards 01/05...

General Information LESER – safety valves and bursting discs in combination LESER safety valves and bursting discs in combination stand for: 3 ulfilment of highest tightness requirements F 3 ombining the advantages of safety valves and bursting discs in C TÜV-examined combinations 3 Monitored operation after rupture of the bursting disc Why safety valves and bursting discs in combination? The combination of bursting disc and safety valve is the solution for the following applications: • o protect the safety valve against corrosion or coating build-up t • o protect against operating...

General Information Applications LESER – safety valves and bursting discs in combination LESER safety valves and bursting discs in combination are used for the following applications: Worldwide Use • mediums which have a tendency to be sticky, such as for – marzipan – bitumen • o protect the safety valve against contamination, such as t – waste water – coal slurry • or highest tightness requirements, such as f – toxic and highly corrosive mediums (such as chlorine) – expensive mediums (such as pharmaceutical products) – vacuum applications • hen using special materials for cost advantages...

Safety valves and bursting discs in combination Q Bursting disc holder O Space monitoring device

Functions and technical design Safety valve Bursting disc 1 3 Function Function “Valve which automatically, without the assistance of any energy other than that of the fluid concerned, discharges a quantity of the fluid so as to prevent a predetermined safe pressure being exceeded, and which is designed to re-close and prevent further flow of fluid after normal pressure conditions of service have been restored.” (EN ISO 4126-1, par: 3.1) The bursting disc is the pressure bearing and pressure reacting component of a bursting disc device. It is a non-reclosing relief device. Technical design...

Bursting disc BT-KUB bursting disc components 3.1 3.2 Medium 3.3 The bursting disc 3 consists of: 3.1 Bursting element 3.2 Sealing membrane 3.3 Bursting disc flag Bursting element Bursting disc flag 3.1 3.3 Function Function The bursting element, also known as buckling-pin element, for the BT-KUB bursting disc, is the pressure-bearing part of the bursting disc. It has no contact to the medium, as it is sealed by a sealing membrane (3.2). When the set pressure is reached, the buckling-pins break away. The bursting element rips open, without fragmenting, and opens up the entire orifice. The...

Space monitoring device Space monitoring device components 4.6 4.5 4.1 4.2 4.4 4.3 Space monitoring device 4 The space monitoring device is designed as a syphon and consists of: 4.1 Pipe fitting 4.2 Syphon 4.3 designs: Device class 1, IP 65 Device class 1, IP 65 Device class 1, IP 65 Pressure gauge connection incl. sealing ring 4.6 Technical design LESER offers pressure gauges in various Standard pressure gauge: Ø 63, G1/4, Trailing pointer gauge: Ø 100, G1/2, Contact gauge: Ø 100, G1/2, Excess overflow valve 4.5 4.6 Sealing ring 4.4 Pressure gauge Pressure gauge Technical design With a...

Codes and standards Codes and standards for safety valves and bursting discs in combination AD 2000-Merkblatt A1, par.: 5.4.1.1 ASME Section VIII Division 1 par.: UG-127 3b Bursting safety devices can be arranged either before or after the safety valve. A bursting device – safety valve – bursting device arrangement is also possible. A rupture disc device may be installed between a pressure relief valve and a vessel. API 520 Part 2, par.: 4.6 EN ISO 4126-3, par.: 3.1 A combination device comprises a bursting disc and separated from the safety valve inlet by no more than a length equivalent...

Installation and maintenance Sizing of the combination Replacement bursting discs Through testing, the BT-KUB bursting discs by REMBE® GmbH SAFETY+CONTROL are optimally adapted to LESER safety valves. No flow loss occurs due to a ruptured bursting disc in the inlet line to the safety valve, which means that the combination can be designed as an individual safety valve This has been tested and certified by TÜV within the scope of safety valve approval. Bursting discs are individually produced for every set pressure, wherefore LESER recommends that the operator orders several bursting discs...

Material characteristics LESER Materials and pressure ranges for the BT-KUB bursting disc Depending on the aggressiveness of the medium, various material combinations are possible. The bursting pressure depends on the bursting temperature and the nominal diameter. Here is a list of possible examples of material combinations. 11 Temperatures below -30°C / -22°F upon request 21 Set pressures for other temperatures upon request Bursting pressure alterations in con- nection with the temperature Forthe selection of bursting safety devices, special attention must begiven totheeffectsof...

Signal bursting disc The bursting disc is downstream of the safety valve. For applications in which the bursting disc is downstream of the safety valve, signal bursting discs are used. A signal bursting disc serves to display the system state locally, for example, in the control room. The initialisation of the signal is caused by the rupture of the bursting element (signalisation wire). The signalisation also continues after normalisation of pressure in the system lines, as a continuous display is activated for non-reversible bursting. The safety valve-bursting disc combination at the...