Model L12-TL

Long Pan Thief Hatch

The L12-TL incorporates a large working surface, larger cover and a gauging and sampling hook into the base. The base is inclined to match the slope of the API 12 tank’s roof to provide a level working surface.

The L12-TL outperforms the competition with industry-leading flow rates and high-precision tolerances for a superior seal. A leakage rate less than 1 SCFH of air at 90% of set pressure keeps your tanks in compliance with industry standards.

Thief hatches are used on steel or fiberglass (FRP) low-pressure oil tanks to provide access for level gauging, sampling and overpressure or vacuum protection, all in one compact design.

Superior Sealing Performance
• Precision machining and manufacturing to accomplish superior sealing
• Ultra-tight sealing reduces product leakage and fugitive emissions
• Active envelope pressure gasket that expands around the base to increase seal • Standard product includes bonding strap and Slic pins

Industry Leading Flow Rates
• Higher flow capacity to protect from excessive pressure build up
• Precision machining and manufacturing to accomplish high flow rates

Direct Replacement & East Maintenance
• Direct replacement for any standard round API 12 thief hatch
• Designed for easy maintenance, thus reducing downtime and lowering operational cost
• Incorporates a mechanical lock system to be used with ha pad lock or lock out bar

Size: 8”
Bolting: API 12
Available Pressure Settings: 4, 6, 8, 10, 12, 16, 24, & 32 osig Available Vacuum Settings:0.4, 0.9 & 3.5 osig
Leak Rate: Less than 1 SCFH of air @ 90% of set pressure Materials of Construction:

Casting: Aluminum (non-sparking)
Envelope Gasket: HNBR, FKM or Fluorosilicone
Vacuum Diaphragm: HNBR, FKM, Fluorosilicone or Fluoropolymer Springs: Galvanized Steel or Inconel® X-750

Optional: Polyester/PTFE Coating

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