Web20 Jun 2024 · Thief hatches, also referred to as gauge hatches, provide both access to tanks as well as pressure control. Technology has advanced over the years from simple dead … Web5 Sep 2024 · When a thief hatch closes—either from gravity or from a worker closing it—the hatch may not seal unless it is firmly latched. This allows vapors in the tank to leak into the atmosphere, which can violate regulations. For the oil & gas producer operating in the U.S. State of Colorado, the regulations require:
Installation, Operation and Maintenance Manual for Spring Loaded Thief …
Web15 Mar 2012 · The thief hatch of claim 4, further comprising a pull cord attachment fixed to the production tank, the pull cord being secured to the pull cord attachment to hold the thief hatch closed. 6. The thief hatch of claim 1, further comprising a two-way relief valve in the movable portion that opens upon application of a predetermined pressure or vacuum. Web1 Aug 2016 · Each tragic incident involved opening a storage tank aperture, known as a thief hatch, on top of the storage tank, and measuring the oil and water levels with indicator tape. It is vital to measure accurately storage tank contents at well sites. Gauging quantities determines the amount of revenue that companies, interest owners, and royalty ... installing forge without java
Improving Worker Safety with Automatic Tank Gauging
Web2 Jun 2015 · Thief hatches and vent-line valves should be kept closed and inspected periodically for proper operation and gasket condition. Should any leaks occur, they may … Webthief hatch. 1. n. [Production Facilities] An opening in the top of the stock tank. The thief hatch allows tank access for a thief or other level measuring devices. WebThe GROTH Model 12-TH Thief Hatch was designed to out perform the competition, with industry leading high flow rates and precision tolerances to provide a superior sealing performance. SUPERIOR SEALING PERFORMANCE. The leakage is less than 1 SCFH of air @ 90% of the set pressure. jiffy lube smog check