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FREE STANDARDS-COMPLIANT SIZING
Find your instant solution to over-pressure process safety
Engineered rupture discs for chemical, pharma, oil & gas, and power industries — backed by a free standards-compliant online sizing tool covering API RP 520, ASME Section VIII, and ISO 4126.
ISO Certified
ISO 9001 (Quality), ISO 14001 (Environment), ISO 45001 (Health & Safety) certified manufacturing.
Engineered in India
Two manufacturing units in Vadodara, Gujarat. Standard and exotic materials including SS316L, Hastelloy, Inconel, Monel, Tantalum.
Standards-Compliant
All discs sized per API RP 520, ASME Section VIII Div 1, and ISO 4126-2/6 with full traceable certification.
Rapid Delivery
Urgent delivery available in sets of three. From low-pressure 0.07 barg vacuum service up to 2000 barg.
Our Product Range
Engineered for every relief application
From low-pressure vacuum service to ultra-high-pressure hydrogen systems — Flammer manufactures the complete portfolio of metal, composite, graphite, and sanitary rupture discs.
XRS SERIES
Reverse-Acting (Star-Scored)
Domed reverse-buckling disc with jaw-tooth pattern. Non-fragmenting, ideal for SRV isolation. Withstands full vacuum without support.
Range0.21 – 100 barg
Size25 – 600 mm
MOCSS316L · Hastelloy · Inconel
XRC SERIES
High-Performance Reverse-Acting
Domed reverse-buckling with jaw-tooth ring for low burst pressures. Operating ratios up to 95% of marked pressure. High cycle life.
Range0.5 – 17.2 barg
Size25 – 150 mm
MOCSS316L · Hastelloy · Tantalum
LD SERIES
Forward-Acting Composite
Multi-layered composite disc with vacuum support, leak seal and rupture element. Suitable for liquid, gas, or two-phase flow at high pressures up to 2000 barg.
Range0.02 – 2000 barg
Size15 – 1100 mm
MOCTFE · Aluminium · Nickel · Inconel
LX SERIES
Solid Metal Scored Forward-Acting
Cross-score pattern in solid metal. Superior cycle life in pulsating/cyclic duty vs tension-loaded discs. Flat or bulged configurations.
Range1 – 250 barg
Size20 – 600 mm
MOCNi · SS · Aluminium · Hastelloy
LF SERIES
Low-Pressure Composite
Laser-slotted metal section with TFE seal. Designed for overpressure protection of atmospheric vessels and condensers. Mounts directly between flanges — no holder required.
Range0.05 – 10 barg
Size25 – 1100 mm (DN25–DN1100)
MOCSS316 · TFE seal
XRS-W / XRC-W
Sanitary Reverse-Buckling
FDA-compliant rupture discs for biotech, pharma, food & beverage. Tri-clamp / tri-clover connections. CIP/SIP capable. Integrated gasket with 3A/USP Class VI certification available.
Range1.24 – 300 psig
Size25 – 100 mm (1″ – 4″)
MOCSS316L · Hastelloy C276
GRA / GRI SERIES
Graphite Rupture Discs
Monobloc graphite discs for highly corrosive service. Plain, TFE-coated, armored, and vacuum-supported variants. Fits standard ANSI 150# and 300# flanges, sizes 1″–24″.
Range0.07 – 40 barg
Size25 – 600 mm (1″ – 24″)
MOCImpervious Graphite (+ TFE / Armored)
HLI / HLI-TQ SERIES
Rupture Disc Holders
Insert-type (HLI) and pre-torque (HLI-TQ) holders covering the full DN20 to DN300 range. Compatible with the entire Flammer rupture disc family. Available in standard and custom alloys.
TypeHLI · HLI-TQ · HLR
SizeDN 20 – DN 300
MOCSS316L · SS316 · SS304L · Hastelloy · Custom
Can't find the right disc for your application?
FREE SIZING TOOL
Size your rupture disc in 60 seconds
Standards-compliant sizing for gas, liquid, steam, and two-phase flow — built to ASME, API, and ISO specifications.
API RP 520 Part I & II
ASME Section VIII Div 1
ISO 4126-2 / 4126-6
Auto unit conversion
A4 PDF datasheet output
Cloud-synced projects
30+ pre-loaded fluids
11 languages supported
Sample Output
Design CodeAPI RP 520
MediaGas / Vapor
Burst Pressure5.5 barg
Temperature160 °C
Required Flow3000 kg/hr
MNFA Required1.77 in²
Recommended2″ XRS
Industries We Serve
Process safety, across every sector
Chemical
Pharmaceutical
Oil & Gas
Power Generation
Food & Beverage
Mining & Metals