Model L61T

Lockdown Hatch

The LaMOT Valve & Arrestor Model L61T Lockdown Hatch provides access for gauging or obtaining product samples from storage tanks. The gauge hatch has a gauge hook integrated to the base to facilitate sampling the tank. The Model L61T Lockdown Hatch incorporates “cushioned-air” seating which assures a superior seal to ensure minimal fugitive emissions.
  • Permits the use of both hands during gauging or sampling
  • Ultra-tight sealing reduces product leakage and fugitive emissions
  • Designed for easy maintenance, thus reducing downtime and lowering operational cost • Corrosion resistance can be enhanced with FKM soft goods
  • Gauge hatch is able to be mounted to 150# ASME flanges or API 12 bolting
  • Incorporates a mechanical lock system to be used with a pad lock or lock out bar
  • Bonding straps are standard

 

  • Sizes: 8”
  • Material: Aluminum (non-sparking)
  • Bolting: 150# ASME, API 12
  • Diaphragm: Buna-N (black), FKM (blue), or FEP (clear)

Flange Adapter:  

  • ADP12TH082002 – Flange adapter – 8″ x 18″ oblong to 8″ API 12 – carbon steel
  • ADP12TH082003 – Flange adapter – 8″ x 22″ oblong to 8″ API 12 – carbon steel

Base Gasket:  

  • GKT12TH08CJ02 – FKM (blue)
  • GKT12TH087602 – FKM (black)
  • GKT12TH083502 – Buna-N (black)

Mounting Kit: (for API 12 bolting)

  • KS12THBS08P01 – Hex nut and bolt set – zinc-plated steel
  • KS12THBS08P02 – Hex nut and bolt set – 18-8 stainless steel

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Other Thief & Lockdown Hatches

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 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 API12 tank’s roof to provide a level working surface. A bonding strap and SLIC™ pins come standard with the L12-TL.

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We 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.

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