Crosby Style JQ Pressure Relief Device

A combination pressure relief device designed with internal parts completely isolated from corrosive fluids and environments

Key Features

Designed in collaboration with the Chlorine Institute, Inc.
Provides reliability and safety beyond that possible with a conventional pressure relief valve.
Inlet and outlet diaphragm seals effectively prevent the corrosion of internal working parts and the escape of fugitive emissions.
Choice of 1½” and 4" (38 and 100 mm) inlet sizes.
1½” (38 mm) model equipped with a special Chlorine Institute-approved inlet flange and metal-to-metal seat.
Optional 1½” 300 lb ANSI raised face flange adapter and elastomer O-ring seat available for exceptional tightness.
4" (100 mm) model standard with 4" 300 lb ANSI large tongue-faced inlet flange and metal seat
Raised-face flange available as an option.
Association of American Railroad Approval Nos. SRD-989034 and SRD-989035.