Caleffi KIT290503A Tankless Water Heater Service Valve Kit, 3/4" FNPT with Pressure Relief Valve

The 290 Series tankless water heater service valve kit connects directly to the standard ¾” MNPT nipples on the heater to facilitate isolating, flushing and servicing the water heater. The union connections make installation simple and quick. The kit includes one blue-handled cold water inlet full-port positive-shutoff 3-way ball valve, one red-handled hot water outlet full-port 3-way positive-shutoff ball valve, and a pressure relief valve, set to 150 psi, which field-mounts to a side port on the hot water outlet ball valve. The ¾” garden hose capped connections are for hose hookups to flush the heater.

• Maximum working pressure:  400 psi 
• Medium temperature range:  32 - 210° F
• Material:  DZR low lead brass

Technical Brochure

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