A-411-HB bleed down valve. Very similar to a 1/4" bleeder valve but with a hose barb on it so you can attach a 3/8” hose to it and run the hose to another location so when you open the valve the ammonia vents in a remote location. Great for bleeding nurse tank connections and heat exchanger. Run the hose to the back of the nurse wagon or applicator and vent the ammonia away from you.
A-411 & A-411-S
NH3 (anhydrous ammonia) bleeder valves, Catalog No. A-411 and A-411-S, allow your choice of T-handle or knurled screw. They are designed to bleed-off trapped liquid or vapor NH3 or LPG in hose valves, couplings and piping. Also for installation in tanks as 85% liquid level gauge. Construction features include stainless steel body and screw, exclusive wiper O-ring which virtually eliminates undesirable flashing on operator, and a tapped inlet for installation of a dip tube. Screw is staked into body to prevent loss by vibration.
Catalog No. A-410 is the same valve with a 12 dip tube factory installed.