The ETV-1 expansion tank service valve simplifies the process of filling, isolating, draining, and servicing a hydronic expansion tank.
Features:
- Forged brass ball valves with blow-out proof stem
- 1/2" Multi-function 3-way valve enables the contractor to: Isolate and drain the expansion tank, isolate and drain the closed-loop system, and fill the closed-loop system
- 1/2" MNPT x FNPT x GHT connections
- Replaces multiple components and reduces installation time