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the SP8980B is specifically calibrated for natural gas applications
Features a standard 3/4" NPT connection for easy installation in most hydronic headers and tanks
Cutting or kinking the line will depressurize the system and render the transmitter inoperable
If mounting vertically
which protects the integrity of the boiler vessel during peak demand cycles
Honeywell VP512A1742 Valve 321142-301 the SP8980B is specifically calibratedThe Honeywell VP512A1742 is a heavy duty, 1 inch normally open pneumatic unit ventilator valve designed for the proportional control of steam or hot water in commercial HVAC systems. Built with a right angle body pattern and high quality bronze construction, this globe style valve features a 10 Cv flow capacity and a 3 8 psi spring range, ensuring precise modulation for terminal unit applications. As a direct replacement for 658 0012, it is engineered
US$ 179.00
US$ 124.25
US$ 49.00
US$ 49.95
