Home > Term: prover, critical-flow
prover, critical-flow
Device utilizing an orifice for testing meters at a pressure of 20 psig or more by passing gas or air through both the meter and orifice and finally discharging it at a lower pressure which maintains critical-flow (sonic velocity) through the orifice. The time for a given quantity of gas to pass through the meter compared to the orifice standard time corrected for test conditions provides a measure of meter accuracy.
- ส่วนหนึ่งของคำพูด: noun
- อุตสาหกรรม/ขอบเขต: Energy
- Category: Natural gas
- Company: AGA
0
ผู้สร้าง
- JJD
- 100% positive feedback