ZBXD pound-level pilot-operated pressure relief valve

follow standards

·ISO 4126-4 Overpressure protection safety device--Part 4: Pilot-operated safety valve

API RP 520 Refinery Pressure Relief Device Sizing, Selection and Installation

·API Std 526 steel flange end pressure relief valve

·API Std 527 Seat tightness of pressure relief valves

ASME American Society of Mechanical Engineers 'Boiler and Pressure Vessel Code' Volume V, Volume 1 'Pressure Vessel Construction Rules'

performance

·Set pressure deviation: ≤ ±3%

·Overpressure: ≤10%

·Opening and closing pressure difference: ≤10%

·Sealing performance: It can maintain good sealing after taking off and returning to the seat, complying with the provisions of API Std 527 standard.

For information on main parts materials and connection dimensions, you can contact us directly. If your working conditions are special, our valve professional technicians will accurately select the valve for you based on actual conditions.