LARGE PRESSURE RELIEF DEVICE
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 once pressure has subsided. Options include local operation indication, contacts (switches) for operation alarming, and directional shield for hot oil and gas exhaust control.
Features
- 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
- 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
- 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
- Device can be top mounted horizontally (recommended) or side mounted vertically for maximum installation flexibility
- 100% tested for quality assurance
- Test results are serialized for traceability
- Visual and remote indication of operation
- Standard units support up to two alarms switches that can be mounted directly to the device or on the directional shield
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