Spence Figure 50 series safety valve is designed for pressure relief of low-pressure air, gas, vapor and powered solids service to atmosphere. Available in both Aluminum and Bronze material, this unit provides pressure relief of air,gas, vapors, and powdered solids.
This valve's features include a compact design, a tamper proof spring setting that cannot be altered, weather-proofed construction, and a diaphragm seal with multiple vent design for high capacity and non-clogging relief. An O-ring seat seal provides tight shut-off until set-pressure (10 to 30 PSIG at 225°F).