Safety Relief Valves and Rupture Disc
Pressure Safety Valves
DN 25 – DN 200 | 1″ – 8″
14 mm – 161.5 mm | 0.551 in – 6.36 in
154 mm² – 20,485 mm² | 0.239 in² – 31.75 in²
0.12 bar – 413.7 bar | 2 psig – 6,000 psig
-268 °C bis 538 °C | -450 °F bis 1,000 °F
1.0619, 1.4408, 1.7357 | SA 216 WCB, SA 351 CF8M, SA 217 WC6, SA 352 LCB, SA 351 CF3M, SA 995 Gr 4A CD3MN (Duplex), SA 494 M35-1 (Monel), SA 494 CX2MW (Hastelloy)
Flange in accordance with ASME B 16.5 or DIN EN 1092
INCONEL 625
Spring-loaded
LESER
DN 15 – DN 40 | 3/8″ – 1 1/2″
6 mm – 17.5 mm | 0.236 in – 0.689 in
28.3 mm² – 241 mm² | 0.044 in² – 0.374 in²
0.1 bar – 850 bar | 1.5 psig – 12.328 psig
-270°C to +450°C | -454°F to +842°F
1.4104, 1.4404, 0.7043, 1.0619, 1.4408 | SA 479 430, SA 479 316L, Ductile Gr. 60-40-18, SA 216 WCB, SA 351 CF8M
Threads iaw DIN ISO 228-1, DIN ISO 7-1 / BS 21, ANSI / ASME B1.20.1. / Flange iaw DIN EN 1092-1 / DIN 2501., ASME B16.5
Stainless steel, Elastomer (EPDM), Hastelloy, Inconel
Spring-loaded
LESER
Pilot Operated Thermal Relief Valves
DN 25 – DN 200 | 1″ – 8″
11 mm – 180 mm | 0.433 in – 7.087 in
95 mm² – 25,446.9 mm² | 0.147 in² – 39.443 in²
2.5 bar – 426 bar | 36 psig – 6170 psig
-48 °C to 200 °C | -54.4°F to 392°F
1.0619, 1.4408 | SA 352 LCB, SA 216 WCB, SA 351 CF8M
Flange in accordance with DIN EN 1092, ASME B 16.5 or JIS 2220
Medium controlled
LESER
Rupture Disc
Our rupture discs offer some of the highest performance specifications on the market. Excellently manufactured for accurate burst control, our reverse rupture disc range can operate at up to 95% of rated burst pressure. The technically advanced Opti-Gard provides a single disc solution across a range of burst pressures, and the PRO+ is excellent for isolating safety valves.
- Designed for high pressure applications 2500 PSIG and above
- Internally sealed & externally welded
- Non-fragmenting, leak-proof design
- Assembly is Helium leak checked to 10^-8 atm-cc/s
- Non-torque sensitive
- High cycle rupture disc, tested to 48 million cycles
- Available in Hastelloy® C, 316 Series Stainless Steel, Inconel® 600 and Monel®
Rupture Disc Holder
Available with any combination of either weld-neck or threaded inlet and outlet connections
The Oseco fluoropolymer-booted insert holder is used in applications where aggressive corrosives are present.
Enhanced environmental pollution control for processes using harsh chemicals
Our forward disc holders are designed for use with the forward acting bursting discs manufactured in North Shields (EMEA/APAC)
Our insert holders are designed for use with most of the rupture discs manufactured in Broken Arrow (AMR).
Designed to cater to multiple flange ratings
The POSI/VRDI holders are the primary holders for the POSIPRO and VAPRO rupture discs.
Our pre-torqued insert holders provide a reliable solution for challenging installations or where misaligned piping is a concern
Our reverse disc holders are designed for use with the reverse acting bursting discs manufactured in North Shields (EMEA/APAC)
Widely used on high-pressure applications up to 15,000 PSI
Oseco Union Rupture Disc Holders are ideal for applications where installation space is limited.
Explosion Vent
The CRP is a lightweight explosion vent designed for use in power applications with electrical cabinets
The CRVC is a heavy-duty vent with an option for internal insulation for high temperature applications.
Manufactured in North Shields, this full range of explosion vents includes single-skinned, multi-layered, flat, domed and sanitary designs
The OsecoElfab GLVF is an excellent solution to protect bucket elevators during deflagrations.
With a robust construction and an integral frame, Lift-Gard offers explosion protection for vertical bucket elevators
Manufactured in Broken Arrow, the MV Panel Range is suitable for the most common explosion venting applications.
The MV-BE is a heavy-duty explosion vent with an integral frame to protect bucket elevators.
Our thermal vent has a composite design that reduces heat loss when used in high-temperature applications
