Low Pressure
Rupture disc DIF Low Pressure
Safety · Rupture Discs
Manufacturer: 
DonadonSDD offers DIF rupture discs that are specifically designed to protect atmospheric vessels and industrial plants from sudden overpressure and/or vacuum variations that can cause severe damage. The DIF rupture discs are consisting of 3 or more components parts that form a single unit disc that can be inserted directly between flanges.
Technical data
- DIF
- Rupture Discs
- Materials
- Stainless steel, Alloy 201, Alloy 400, Alloy 600, Alloy 625, Alloy C276, Titanium
- Seal membrane
- Available in PTFE or PFA
- Dimensions
- From DN25 (1 inch) to DN1000 (40 inches)
- Rupture pressure
- 0.005 – 10 bar g (Depending on size and material)
- Tolerance
- from +/- 5 % to +/- 40%
- Operating temperature
- max 260°C (membrane in PTFE or PFA)
- Fragmentation
- No (membrane only)
- Use in combination with PSV
- Suitable
- Operating margin
- Can reach up to 70% depending on service conditions.
- Resistance to vacuum pressure
- Yes, Vacuum Support Required
- Double way disc option
- Available, even with two different set pressures
- Corrosion resistance
- Very Good
- Linings
- Available in PTFE and PFA
- Installation
- Directly between flanges
- Rupture sensor
- Electrical, Magnetic, Inductive, Optical
- Operation Ratio
- up to 70%
- Non Fragmenting
- yes (membrane only)
- Vacuum Resistant
- yes, Vacuum Support Required
- Sanitary
- no
- Liquid
- yes
