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pressure switches are factory-set to specific wc (water column) trip points
The 30 psi pressure relief valve setting is maintained via a heavy-duty stainless steel spring
this coil is built to maintain performance in aggressive environments where precise flow control is critical for system efficiency
By maintaining the crankcase temperature above the system saturation point
Armstrong Fluid Technology 875000-812 Coupling Insert 320735-701 pressure switches are factory-set toThe Armstrong Fluid Technology 875000 812 Coupling Insert is a high performance 8H Coupling Insert engineered for industrial pumping systems that demand maximum durability and torque transmission. As the direct replacement for 975000 812, this elastomeric coupling element is crafted from premium Hytrel material, providing four times the power capacity of standard EPDM alternatives. This makes it an ideal choice for HVACR pump repair and high load