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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
The 1/2" NPT connections allow for seamless integration into existing return lines
chrome-plated flaring bars and a long-handle feed screw for maximum leverage and smooth operation
ensuring consistent snap-action connectivity even in harsh outdoor environments
Each relay features an adjustable trip point
or significant dust buildup that could cause an imbalance and lead to bearing failure
Siemens Building Technology 658-0051 Valve 320788-704 The 1/2" NPT connections allowThe Siemens Building Technology 658 0051 is a professional grade 3 way sequencing valve engineered for precision modulation in 4 pipe HVAC systems. With a 1 2 inch flare connection and a 2. 5 Cv flow coefficient, this Powertop series valve is designed to manage hot and chilled water flow to radiant panels and induction units without mixing. The equal percentage flow characteristic ensures linear thermal output, providing tight control over terminal
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