초록 ▼

A liquid proving system is provided with a bottom drain liquid prover draining into a holding tank. The fill opening of the prover has a prover fill opening self sealing assembly that remains closed except when a nozzle used to pump liquid into the prover is pushed through the opening of the prover

A liquid proving system is provided with a bottom drain liquid prover draining into a holding tank. The fill opening of the prover has a prover fill opening self sealing assembly that remains closed except when a nozzle used to pump liquid into the prover is pushed through the opening of the prover fill opening self sealing assembly. The prover fill opening self sealing assembly may comprise a nozzle sealing gasket and a nozzle removed self seal assembly. There is a vapor conduit connecting the interior of the prover in the region of the fill opening and the interior of the holding tank to form a saturated vapor environment in the prover and holding tank from the vapors emitted from liquid in the holing tank. When liquid is pumped into the prover evaporation of the liquid being pumped into the prover, and release of vapors from the prover, is inhibited due to the saturated vapor environment in the prover, which results in a more accurate prover measurement of liquid pumped into the prover.

대표청구항 ▼

The invention claimed is: 1. A bottom drain liquid proving system comprising:a bottom drain prover comprising an upper neck section, the neck section having a fill opening for receiving a liquid, a central section for accumulating the liquid, and a drain section;a gauge in fluid communication with t

The invention claimed is: 1. A bottom drain liquid proving system comprising:a bottom drain prover comprising an upper neck section, the neck section having a fill opening for receiving a liquid, a central section for accumulating the liquid, and a drain section;a gauge in fluid communication with the interior volume of the prover to measure the volume of the liquid in the prover;a device for controlling the release of the liquid in the prover;a holding tank for receiving the liquid released from the prover;a vapor conduit connecting the interior volume of the neck section to the interior volume of the holding tank;a prover fill opening self sealing assembly having a self sealing opening that opens when a liquid dispensing nozzle is pushed against the self sealing opening and forms a substantially vapor tight seal around the nozzle; anda vent connecting the interior volume of the holding tank to atmosphere.