Low Pressure
Rupture disc LPD Low Pressure
Safety · Rupture Discs
Manufacturer: 
DonadonSDD offers LPD rupture discs that are designed to protect industrial plants from ultra low-pressure variations that can cause severe damage. The LPD rupture discs are consisting of 3 or more components parts that form a single unit disc that can be installed or directly between flanges or in holders (depending on specific application); are provided with knife-blade that brakes the PTFE layer upon contact.
Technical data
- LPD
- 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 DN50 (2 inches) to DN300 (12 inches)
- Rupture pressure
- 0.005 – 0,5 bar g (Depending on size and material)
- Tolerance
- from +/- 20 % 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 60% 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 or suitable for HIA, HIP, HIF holders
- Rupture sensor
- Inductive, Optical
- Operation Ratio
- up to 60%
- Non Fragmenting
- yes (membrane only)
- Vacuum Resistant
- yes, Vacuum Support Required
- Sanitary
- no
- Liquid
- yes
