Model 1000 Lock down
Applications
ENARDO's Model 1000 Lock-Down Hatch provides secure access to storage tanks without pressure or vacuum relief capability. When closed, it ensures a vapor-tight seal that prevents leakage and evaporation loss. The latch mechanism allows for the use of a padlock or security seal.
Features
- Sizes:
Bolt pattern 1 – ANSI (8) 7/8" holes on an 11-3/4" circle
Bolt pattern 2 – API (16) 11/16 holes on a 10-3/8" circle
Model 330 and 330-L Thief Hatches
Applications - 330
ENARDO's Model 330 is a spring-loaded pressure-vacuum relief hatch with a round base and cover. This hatch was specifically designed to meet the demand for a lightweight, inexpensive thief hatch and is generally used in applications where sealing requirements do not justify the use of a premium hatch.
Features
- Size: Bolt pattern 10-3/8" API
- Pressure setting: 4, 6, 8, 12, 16 and 24 oz.
- Vacuum setting: 0.4, 0.9 and 3.5 oz.
- Materials: Aluminum castings
Applications - 330-L
ENARDO's Model 330-L is a spring-loaded pressure-vacuum relief hatch with an oblong base and cover with a long basin that serves as a self-contained shelf. This hatch was specifically designed to meet the demand for a lightweight, inexpensive long pan thief hatch and is generally used in applications where sealing requirements do not justify the use of a premium hatch.
Features
- Size: Bolt pattern 10-3/8" API
- Pressure setting: 4, 6, 8, 12, 16 and 24 oz.
- Vacuum setting: 0.4, 0.9 and 3.5 oz.
- Materials: Aluminum castings
Model 660 and 660-L Thief Hatches
Applications - 660
The Model 660 is a premium hatch designed with a round base and cover and is intended for use in applications where tight sealing is critical such as sour crude/gas or where strict environmental emissions standards are enforced.
Features
- Size: Bolt pattern 10-3/8" circle API
- Pressure setting: 2, 3, 4, 6, 8, 12, 16, 24 and 32 oz.
- Vacuum setting: 0.4, 0.9 and 3.5 oz.
- Materials: Aluminum castings (non-sparkling)
Applications - 660-L
The Model 660-L is a premium hatch designed with a long base and cover and is intended for use in applications where tight sealing is critical such as sour crude/gas or where strict environmental emissions standards are enforced. The long basin serves as a thief shelf. The Model 660-L also includes an inclining base to keep the basin level.
Features
- Size: Bolt pattern 10-3/8" circle API
- Pressure setting: 2, 3, 4, 6, 8, 12, 16, 24 and 32 oz.
- Vacuum setting: 0.4, 0.9 and 3.5 oz.
- Materials: Aluminum castings (non-sparkling)
Model A and A-L, 110-PO and 200
Applications
ENARDO’s Dead Weight Thief Hatches are generally used on low-pressure, steel and fiberglass tanks. When excessive pressure builds within the storage tank, the vent’s hinged cover begins to open at the predetermined set pressure, relieving excess pressure. When the overpressure has dissipated, the cover reseats onto the base. When excessive vacuum builds within the storage tank, the spring-loaded pallet lifts, breaking the seal between the seat and pallet, allowing vapors to pass through the valve orifice relieving the vacuum buildup. The vacuum valve reseals upon relief.
Models A, A-L, 110-PO and 200 provide access and pressure relief by means of dead weight, and offer higher outflow capacities and lower pressure settings than standard spring-loaded hatches. With the exception of Model 110-PO, a spring-loaded pallet provides vacuum relief.
Features
- Materials: Aluminum
Model A
- Size: 8" (200 mm) API round base
- Pressure setting: 2, 4, 6 oz./in.2
- Vacuum setting: 0.4 oz./in.2
Model A-L
- Size: 8" x 18" (200 mm x 460 mm) oblong base
- Pressure setting: 2, 3, 4, 6 oz./in.2
- Vacuum setting: 0.4 oz./in.2
Model 110-PO
- Size: 8" (200 mm) round base
- Pressure setting: 1, 2 oz./in.2
- Vacuum setting: N/A
Model 200
- Size: 8" x 22" (200 mm x 560 mm) oblong base
- Pressure setting: 1, 2, 3, 4, 6 oz./in.2
- Vacuum setting: 0.4 oz./in2
