- Operating Ratio
- 90% of marked burst pressures over 40 psig (2.76 barg) – ASME
- 90% of minimum burst tolerance for burst pressures less than or equal to 40 psig (2.76 barg) – ASME and EN ISO 4126-2
- 95% of minimum burst pressure over 40 psig (2.76 barg) – EN ISO 4126-2
- Capable of cycling in excess of 10,000 times from full vacuum to 90% marked burst pressure (ASME) or 95% of minimum burst pressure range (EN ISO 4126-2) (up to 90% of minimum burst pressure for pressures below 40 psig (2.76 barg))
- Backpressure: 100% of specified burst pressure
- Operates in both gas and liquid applications
- ASME Certified
- Can be ordered with an optional FEP or PFA fluoropolymer liner on the process side
- Effective in VALVEGUARD protection of expensive Pressure Relief Valves and Safety Relief Valves.
| Design | Reverse-Acting |
| Size Range | 1 in to 12 in | DN25 to DN300 |
| Burst Pressure Range | 7 psig to 600 psig | 0.48 barg to 41.37 barg |
| Burst Pressure Tolerance | ± 2 psig for burst pressure ≤ 40 psig ± 5% for burst pressure > 40 psig |
± 0.14 barg for burst pressure ≤ 2.76 barg ± 5% for burst pressure > 2.76 barg |
| Materials | 316/316L SST, Hastelloy®C276 and Inconel®625 |
Data Sheets
- Insert Holders Data Sheet
- Insert Holders Data Sheet (Europe)
- Insert Holders Data Sheet (Spanish)
- Insert Holders Data Sheet (Chinese)
- TQ Series Pretorqueable Holder Data Sheet
- TQ Series Pretorqueable Holder Data Sheet (Europe)
- TQ Series Pretorqueable Holder Data Sheet (Spanish)
- TQ Series Pretorqueable Holder Data Sheet (Chinese)
Technical Documents
- Best Practices for RD/PRV Combinations
- Certified Combination Capacity Factors
- ASME Code and Rupture Discs
- Certified KR and MNFA Values
- Rupture Disc Sizing
- Getting the Most Out of Your Rupture Disc
- Use of Rupture Discs in Combination with Pressure Relief Valves
- Considerations for the Use of Double Disc Rupture Disc Assemblies
