Key Benefits Optimized System Protection: The W45 MOP charge limits suction pressure to 45 PSIG

it helps maintain the 3 to 15 psi range accuracy and prevents the premature wear of seals and packing

pressure for stable LPG combustion

repeatable settings for consistent system pressure

allowing it to wrap securely around a variety of large commercial and residential scroll compressors

Watts 0358553 Valve Els PW 17895 Key Benefits Optimized System Protection:The Watts 0358553 (Model 374A 3 4 30) is a high capacity boiler pressure relief valve engineered specifically for hot water space heating boilers. This critical safety component provides overpressure protection with a fixed 30 psi pressure relief setting and a discharge capacity of 550,000 BTU hr. Designed for professional hydronic heating systems, it features a durable iron body construction and a forged bronze inlet to withstand demanding contractor