Independent Ag Equipment

RELIEF VALVES

VAPOR RELIEF VALVES Vapor relief valves are safety valves designed to open when tank pres- sure rises above 250 PSI. Used on applicator, storage, and nurse tanks, they will protect tanks, pip- ing or hose from excessive pressure caused by overfilling or fire. Relief valves should be replaced 5 years after the date of manufacture which is stamped on the valve. ¾ in. Vapor Relief Valve for Applicator Tanks Part No. A1301A 1-¼ in. Vapor relief valve for Storage Vessels Part No. A1310A

HYDROSTATIC RELIEF VALVE Hydrostatic relief valves are designed to relieve liquid pressure in valves, hoses, or piping wherein liquid may be trapped. Pressure set at 375 PSI. Note: All safety relief and hydrostatic relief valves must be changed five years after date of manufac- ture. ¼ in. Hydrostatic Relief Valve Part No. A1327

RELIEF VALVE MANIFOLD The A1416 relief valve manifold is used on large NH3 tanks to allow removal of a relief valve for inspection or replacement, without the need of evacuating the tank. Adequate relief protection is provided by the remaining relief valve in the manifold. Bleeder valves relieve vapor pressure under each relief valve after closing the manifold port, and each port can be closed separately, meeting code requirements.

RELIEF VALVE ADAPTER Relief valve adapters are used when the NH3 hose assembly remains on the toolbar instead of the nurse tank. Install the adapter between the NH3 quick coupler and the NH3 hose assembly. Install a ¼ inch

ANHYDROUS AMMONIA SUPPLIES

hydrostatic relief valve (A400 or A1325) into the relief valve adapter to provide vapor relief to the NH3 hose assembly in excessive pressure sit- uations. 1 in. MNPT x 1 in. FNPT Part No. A2031 1-¼ in. MNPT x 1-¼ in. FNPT Part No. A2032

Pipe Nipple Included

A1416

BLEEDER VALVE The bleed valve has a T-handle and is designed to bleed-off trapped liquid or vapor NH3 in hose valves, couplings, and piping. Also for installation in tanks as an 85% liquid level gauge. ¼ in. Bleed Valve Knob Part No. A1911 ¼ in. Bleed Valve Knob with 12 in. dip tube installed Part No. A1911

Description

Part No.

A1416

Manifold only

Manifold with two A1310A relief valves with a 2" FNPT tank connection

A1416A

Packing Repair Kit

1415-7

239