NH3 (Anhydrous Ammonia) Safety Relief Valves
Continental NH3 (Anhydrous Ammonia) safety relief valves are designed for installation in the vapor area of anhydrous ammonia containers for agriculture use. Their function is to open and relieve the pressure when it exceeds the designed working pressure of the container. Our safety relief valves meet the requirements of the ASME Boiler and Pressure Vessel Code (Section VIII Div. 1).
Note: All safety relief and hydrostatic relief valves must be
changed five years after date of manufacture.
Catalog No. A-402-VA 3/4" MPT Safety Relief Valves are designed for use on nurse tanks and small applicator tanks. They are constructed with corrosion resistant aluminum, stainless steel spring, and a special synthetic rubber seat.
Catalog No. A-417-AB is a 1-1/4" MPT Safety Relief Valve designed for use on large containers which require greater relief capacity. The body is of corrosion resistant aluminum. Coated steel springs and a special synthetic rubber seat.
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| Ordering Information | ||||||
|---|---|---|---|---|---|---|
| Part Number | Inlet/NPT | Wrench Size | Overall Height | Set Pressure | SCFM U.V. | SCFM U.L. |
| A-402-VA | 3/4" | 1-3/4" | 3-1/2" | 250 PSI | 2057 | |
| A-402-VA-265 | 3/4" | 1-3/4" | 3-1/2" | 265 PSI | 2130 | |
| A-417-AB | 1-1/4" | 3" | 8" | 250 PSI5 | 5341 | 5886 |
Hydrostatic Relief Valves
Hydrostatic Relief Valves are designed to relieve liquid pressure in valves, hoses or piping wherein liquid may be trapped.
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| Ordering Information | |||
|---|---|---|---|
| Part Number | Inlet NPT Size | Wrench Size | Set Pressure |
| A-400 | 1/4" NPT | 9/16" | 375 PSI |
| A-400-A | 1/4" NPT" | 9/16" | 312 PSI |
| A-400-B | 1/4" NPT | 9/16" | 250 PSI |
| A-400-C | 1/4" NPT | 9/16" | 350 PSI |
