QUALITROL LPRD/208/213/216 Large pressure relief devices
Confidence with the global standard in pressure relief devices
Mechanical device for relief of excessive pressure buildup in large volumes of gas or fluid. Patented dual gasket system provides quick response time and automatically reseals after pressure has subsided. Options include local operation indication, contacts (switches) for operation alarming, and directional shield for hot oil and gas exhaust control.
Confidence with the global standard in pressure relief devices
- World’s leading pressure relief device pioneered automatically resealing pressure relief
- Greater than 50 years and 400,000 units of field experience in pressure relief have enabled QUALITROL experts to refine designs for maximum reliability
- Most frequently customer specified pressure relief by name
Robust design and materials provide reliable protection and long life
- Main cover is available in zinc clad steel (208/213) or stainless steel (216) for added durability and corrosion resistance
- Dual gasket design provides amplified force for rapid operation
- Patented secondary seal wiper gasket provides more reliable resealing
- Stainless steel operating valve, fasteners, and hardware
- Flange and ring are made from aluminum with a chromate conversion coating with exposed aluminum components receiving an additional epoxy paint coat
Widest array of options for a solution curtailed to your requirements
- Preset certified relief rating allows you to select the device that best meets your needs
- Switches can be specified to operate as latching or momentary, SPDT or DPDT, high DC, or low current gold contact type, and with connector, terminal box, or flying lead style connections
- Optional directional shield can be coupled with piping, providing maximum protection of equipment, personnel and the environment by redirecting the flow of hot oil and gas
- Optional gas bleed system available for mounting under the oil level
- Device can be top mounted horizontally (recommended) or side mounted vertically for maximum installation flexibility
100% tested for quality assurance
- QUALITROL LPRDs are 100% pressure tested for properoperation pressure
- Test results are serialized for traceability
Visual and remote indication of operation
- Optional semaphore (flag) provides visual indication of actuation and is available in different colors and materials
- Standard units support up to two alarms switches that can be mounted directly to the device or on the directional shield
- Operating pressure, gasket material and type, hood material, Indicator style and color
- Up to 2 latching or momentary switches (singe or double pole form C, high DC, or low current gold contacts)
- Electrical connection style
- Gas bleed system
- Directional shield for controling hot oil and gas discharge (shown below)
For overpressure protection on oil filled transformers, load tap changers, and other related electrical apparatus.