DANFLO surge relief valves (SRV) feature an axial "straight-path" smooth flow pattern and have a large annular flow area for high pressure recovery, low pressure drop and high flow coefficients. Surge control is achieved by "loading" the plug cavity from a regulated nitrogen source. A line pressure surge above the nitrogen "set" pressure opens the valve immediately. Transient surge pressure is thus reduced as the extra surge volume is relieved. The plug then tracks line pressure until equilibrium is re-established and the valve closes.
See Options below for surge relief systems incorporating DANFLO SRVs.
Design Pressure: 1 to 2,250 psi
Design Temperature: -50 to 4000F
Surge relief system control module
Comprises a control panel, bottle rack and plenum in a compact unit. Use in conjunction with our DANFLO SRVs for a flexible surge protection solution.
Single run surge relief system
Manufactured to customer specification, incorporating the control module, surge relief and isolation valves, and all necessary connections on a single skid.
Multi run surge relief system
Additional runs can be combined in a single platform to accommodate surge needs, reducing space and cost.
Rate-of-rise surge relief system
Our patented rate-of-rise surge relief system combines the DANFLO SRV with a predictive pressure rate-of-rise system to allow pre-emptive action against a developing surge event. Reacting before a surge event can occur, this rate-of-rise system supports condition monitoring and preventative maintenance regimes.
Why specify a surge relief system from M&J Valve?