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Model L12-TL
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
Select your specifications below to generate a custom product number.
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Model #
Size
Body Material
Envelope Gasket
Vacuum Diaphragm
Spring Material
Pressure Setting
Vacuum Settings
Options
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Model L12-TH
Round Pan Thief Hatch
The LaMOT Valve & Arrestor Model L12-TH Thief Hatch incorporates a spring loaded pressure/vacuum relief valve within the device. Thief Hatches are used on steel or fiberglass (FRP) low pressure storage tanks. The hatch has a gauging hook integrated to the base to be used while sampling the tank, providing access for level gauging, sampling, and overpressure/vacuum protection for the tanks, all in one compact design. Superior sealing is achieved from an active envelope pressure gasket that expands around the base to increase seal until the designated pressure setting is reached. This design saves you money by greatly reducing vapor loss compared to a traditional thief hatch design.
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Model L1220A
Private: Pipe-Away
The LaMOT Valve and Arrestor Model L1221B Pressure/Vacuum Relief Valve is designed to protect your tank from damage created by overpressure or excessive vacuum. Costly product evaporation losses due to normal tank “breathing” are greatly reduced. Because the 1200 Series products retain toxic vapors, atmospheric contamination is minimized which helps to provide increased fire protection and safety.
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Model L2300A
Private: Pressure Relief Valve
The L2300A provides emergency relief capacity above what can be supplied by standard operating valves. Use it to protect tanks, piping and low-pressure vessels from internal pressure damage.
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Model L1201B
Private: Vent to Atmosphere
The LaMOT Valve and Arrestor Model L1201B Pressure/Vacuum Relief Valve is designed to protect your tank from damage created by overpressure or excessive vacuum. Costly product evaporation losses due to normal tank “breathing” are greatly reduced. Because the L1200 Series products retain toxic vapors, atmospheric contamination is minimized which helps to provide increased fire protection and safety.
View Private: Vent to Atmosphere chevron_rightWe don’t manufacture until you order. Our production team employs the latest tools and techniques in agile manufacturing to fabricate your order to your specifications. After production and assembly, each product undergoes stringent quality inspections before leaving the production floor – we guarantee you’ll get exactly what you ordered.