Viking® VK310, Model M, 5.6K, Standard, Conventional, QR, 1/2" NPT, Black, 155 Degree 19391MB/B Fire Sprinkler Head 9163Z30 1 1/2" Hose Valve Standpipe

1 1/2" Hose Valve Standpipe outlets measure 2" across threads

The WFD25EXP is a waterflow detector for installation on 2

Multi-voltage heater

or an S-2 (3-1/4” diameter) water shield threaded onto 3/4” threads

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Viking® VK310, Model M, 5.6K, Standard, Conventional, QR, 1/2" NPT, Black, 155 Degree 19391MB/B Fire Sprinkler Head 9163Z30 1 1/2" Hose Valve StandpipeViking VK310, Model M, 5. 6K, Standard, Conventional, QR, 1 2" NPT, Black, 155 Degree 19391MB B Fire Sprinkler Head The Viking Microfast Quick Response Conventional Sprinkler VK310 is a small, thermosensitive, glass bulb spray sprinkler available in several different finishes, temperature ratings, and K factors to meet design requirements. The special Polyester and Electroless Nickel PTFE (ENT) coatings can be used in decorative applications where