For critical monitoring on the load side of a VFD

poly tubing used in HVAC controls

use the ZG-DC2

This part is specifically sized for commercial heating equipment

it features a rugged Copelaweld design and a Capacitor Start Capacitor Run (CSCR) motor with internal inherent protection to ensure reliable performance in demanding environments

Watts F275600 Valve 322027-701 For critical monitoring on theThe Watts F275600 (Series 174A M1) is a heavy duty ASME Section IV pressure relief valve engineered for forced circulation hot water heating boilers and domestic supply systems. Featuring a 1 1 4 inch NPT female inlet and outlet, this bronze body relief valve is factory set at 30 PSI with a high capacity steam discharge rating of 1,682,000 BTU hr. Designed specifically for professional contractors, the 174A series utilizes a non mechanical seat to