McDonnell & Miller 847 Water Feeder R-410A this T&P valve provides superior

this T&P valve provides superior resistance to corrosion and mineral buildup

or flat surfaces

it is designed for single-use activation during the manufacturing or major service process and must be replaced if the seal is compromised

this valve provides versatile connection options for standard copper linesets

What is the difference between the SAN50D and SAN50S

McDonnell & Miller 847 Water Feeder R-410A this T&P valve provides superiorThe McDonnell & Miller 847 Make Up Water Feeder (Part Number 134300) is a mechanical float operated valve engineered specifically for boiler receiver tanks. Designed to maintain precise liquid levels, this mounting flange water feeder is rated for a maximum water supply pressure of 100 psi and a maximum vessel pressure of 25 psi. The Series 847 utilizes a high capacity feed mechanism to ensure consistent makeup water delivery, preventing dry run