Double-Disc Assembly
Use a double-disc assembly to simplify your piping arrangements, eliminate back pressure, detect leaks or create an actuated rapid-opening system.
Three holder components (inlet, mid-flange and outlet piece) and two rupture discs make up the double-disc assembly. The first rupture disc fits between the inlet and the mid-flange, and the second goes between the mid-flange and outlet.
Rupture disc leak detection
A double-disc assembly is ideal when working with toxic, extremely corrosive or very valuable contents. If the process-exposed rupture disc leaks, a pressure gauge in the mid-flange would indicate the leak while the second rupture disc maintains the system leak-free. You're then free to replace the first rupture disc - no emergency situation necessary.
Actuated rapid-opening device
Create a quick-opening device by pressurizing the space between the two rupture discs in a double-disc assembly. Upon dumping the pressure between the two rupture discs, full open area is obtained within a few milliseconds. A double-disc assembly pressurized as a quick-opening device can activate pressure systems and/or test them for sudden pressure changes.
Elimination of back pressure
The second rupture disc withstands the system back pressure, isolating the first disc. Any change in pressure differential across the first rupture disc induced by back pressure is eliminated, and it will rupture at its rated burst pressure. The second rupture disc may be rated at a lower burst pressure to compensate for the maximum back pressure that may coincide with a burst condition.
HPX, UNISERT, LOTRX, 7I and RCS holders are all available in Double-disc holder designs.
- Nominal Size Range: 1″ - 36″ (25 mm - 900 mm)
- Burst Pressure Range: N/A
- Recommended Operating Ratio: N/A
- Seating Configuration: Flat seat or 30° seat
- Service: Liquid or gas
- BDI Alarm System Compatible? Yes
- ASME Code Symbol Stamp Available?: Yes
Related products
-
Union Holder Assembly
Our line of Union holder assemblies provides flexibility in tight piping configurations. These precisely built holders combine remarkable ease of installation with high-pressure ratings in pipe sizes of 2″ (50mm) or less. The Union holder assembly works with standard- or composite-type rupture disks. SRA Union and Union-type holders are available for pressure ranges up to 6,000 psig, depending on disc size and type. -
Unified Assembly
When used with our non-fragmenting MICRO X or Composite Flat Seat (FS) rupture discs, the UNISERT Assembly creates an effective seal every time. How? They were made for each other. The UNISERT is a flat seat rupture disc holder designed with superior sealing capabilities and easy installation. For use with any burst or pressure rating of the MICRO X or Composite Flat Seat rupture disc. -
Screw-Type and Tite-Seal Rupture Disc Holder Assemblies
Give your miniature pressurized systems dependable, instantaneous overpressure relief with the Screw-Type rupture disc holder and the Tite-Seal assembly - customized for small systems, such as air conditioning systems, refrigeration units, hydraulic accumulators, gas cylinders, portable compressed-air systems and laboratory equipment. Screw-Type and Tite-Seal assemblies are available with a variety of inlet and outlet connections to accommodate various applications. -
CLEAN-SWEEP® Assembly
Keep your rupture disc clean, accurate and operational with the CLEAN-SWEEP Assembly. Designed for viscous media processes, the CLEAN-SWEEP Assembly significantly reduces dead space in pipe-tee rupture disc assemblies, eliminating product buildup and preventing interference or excessive overpressure. This holder is an ideal replacement for rupture disc assemblies installed off the leg of a pipe tee where product buildup could affect the proper operation of the rupture disc. With the CLEAN-SWEEP Assembly installed, the rupture disc mounts directly adjacent to the process flow.
"*"indicates required fields
"*"indicates required fields
Do you want to find contact details for a specific person or office?
Here you will find all our contact details.
With Colly Flowtech you always get
