Lock Down Hatch

Lock Down Hatch

Model L61T

Lock Down Hatch

The Model L61T Lock Down Hatch provides access for gauging or obtaining product samples from storage tanks. The lock down hatch has a gauging hook integrated to the base for sampling the tank. The Model L61T Lock Down Hatch incorporates “cushioned-air” seating which assures a superior seal to ensure minimal fugitive emissions.


Size: 8” (200 mm)
Material: Casting: Aluminum (Non-Sparking)
Bolting: API 12, or 150# ASME
Diaphragm: Buna-N, FKM, EPDM, or FEP


  • 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
  • Lockdown hatch is able to be mounted to API 12 bolt pattern or 150# ASME flanges (adapters are available for oblong bolting configurations - see options for details)
  • Incorporates a mechanical lock system to be used with a pad lock or lock out bar


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


Lock Down Hatch

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