Poppet Adjustable Relief Valve 100-300 PSI, Brass Pressure Relief Valve — Open-Box, 5% Off

【Precise Pressure Adjustment】 This poppet adjustable relief valve comes with a calibrated knurled knob, delivering accurate 100–300 PSI pressure regulation. Clear scale marks let you lock target pressure easily, solving unstable pressure overflow issues on air, water and oil pipelines. 【Standard NPT Connections】The brass pressure relief valve features 3/4” NPT male inlet & 1/2” NPT female outlet, matching most industrial & residential pipe fittings. Precision-machined threads cut fluid leakage and avoids messy dripping at threaded joints. 【Heavy-Duty Brass Construction】Our poppet style relief valve is fully forged from heavy solid brass. It resists rust, oxidation and medium erosion, maintaining stable sealing performance under long-term high-pressure working conditions far better than cheap alloy valves. 【Multi-Media Compatible Safety Valve】This adjustable relief valve works safely with compressed air, domestic water and hydraulic oil. It releases excess pressure automatically to protect pumps, compressors, boilers and hydraulic equipment from burst damage. 【All-Scenario Pipeline Protection Tool】The pressure control valve with 100-300 PSI wide range fits household water heaters, air compressors, industrial hydraulic machines and boiler systems, a necessary safety fitting to extend pipeline service life and cut breakdown risks. This Solid Brass Poppet Adjustable Pressure Relief Valve is a professional pipeline safety component calibrated for 100–300 PSI pressure control, equipped with standard 3/4" NPT male inlet and 1/2" NPT female outlet threads to fit most industrial and residential piping systems. The poppet-style overflow structure automatically releases excess pressure to safeguard pumps, compressors and heating equipment against overpressure burst failure.
Key Features
Poppet adjustable relief valve with marked calibrated knob, precise locking pressure from 100 to 300 PSI for accurate fluid pressure management.
Full solid brass construction poppet pressure relief valve, excellent anti-corrosion performance for long-term air, water and hydraulic oil circulation service.
3/4 M x 1/2 F NPT dual thread matching mainstream pipe fittings; built-in O-ring seals eliminate connection leakage for the safety valve.
Universal medium compatibility: this brass poppet relief valve supports compressed air, domestic water and hydraulic oil three common working fluids.
Automatic overflow protection design, instantly venting redundant pressure to avoid pipeline rupture and costly equipment damage.
Wide Applications
Industrial equipment: Air compressors, hydraulic machinery, industrial oil circulation pipelines
Heating systems: Residential & commercial water boilers, hot water heater pressure safety control
Plumbing projects: Household water supply pipelines, irrigation high-pressure water systems
Mechanical maintenance: Heavy machinery pressure buffer, pump overpressure protection
Workshop facilities: Pneumatic tool air storage tank pressure relief
This poppet adjustable pressure relief valve solves the core customer pain point of unregulated pipeline overpressure, acting as a reliable safety barrier for all air, water and hydraulic oil piping systems to reduce maintenance and replacement costs.