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and H-32 circulators commonly used in hydronic heating systems
reducing downtime in non-critical safety shutdown scenarios
It features an adjustable high limit (100-220°F) and low limit (110-200°F)
All-Angle Mounting: Dual-shielded ball bearings allow for flexible installation in any orientation without premature mechanical wear
The internal construction features high-grade materials to resist corrosion and mechanical fatigue in demanding residential and light commercial applications
Trane VAL19947 TXV 321894-706 and H-32 circulators commonly usedThe Trane VAL19947 is a precision engineered R410A 3 Ton TXV designed for high performance refrigerant metering in residential and light commercial evaporator coils. This thermostatic expansion valve maintains optimal superheat control, ensuring the evaporator is properly fed under fluctuating load conditions to prevent compressor floodback and maximize system efficiency. Built for high pressure R410A refrigerant systems, it features a 3 8" ODF inlet