Multipurpose Valves for Liquid Withdrawal of LP-Gas and NH3 Containers
Info
Designed especially for use as a high capacity liquid withdrawal valve
on LP-Gas and anhydrous ammonia containers.
These valves incorporate an integral excess flow valve. When product
is required, the valve must be completely open and backseated to
allow the excess flow valve to function properly as explained in the
excess flow valve section of this catalog.
The A8017DH is equipped with a soft seated automatic differential
back pressure check valve in the seat disc assembly. This allows any
pressure build up in the liquid transfer line in excess of 10-15 psig
above the container pressure to flow back into the container. The
transfer hose is protected against excessive liquid or vapor pressure
entrapment, which adds materially to the useful life of flexible hose.
In addition to increasing hose service life, the equalizing valve adds
substantially to the operating safety of liquid transfer systems.
| Part Number | Inlet Connection (M. NPT) | Outlet Connection (F. NPT) | Approximate Excess Flow Liquid Closing Flow** (GPM/Propane) |
Accessories | |
| Hydrostatic Relief Valve |
Vent Valve | ||||
| A8017DH | 1¼” | 1" | 49 | Not Required | TSS3169 |
| A8017DP | 55 | SS8001J | |||
| A8017DLP | ¾” | 49 | |||
| A8020D | 1¼” | 1" | 78 | SS8001J | TSS3169 |
* Built-in back pressure check valve incorporated into shut-off valve.
* * Determined at 11.5 to 13.5 PSIG differential for ¾” outlet and 9 to 12 PSIG differential for 1” outlet. For NH3 flow, multiply by .90.