Model L22E

Emergency Relief Vent

The LaMot Valve & Arrestor Model L22E Emergency Relief Vent is designed to provide superior sealing and industry leading high flow rates. When properly sized, the high flow capacity will help protect the tank from damage in an emergency event.
  • Modern manufacturing processes result in superior seals which reduce leakage and fugitive emissions
  • Engineered for industry leading flow to better protect against excessive pressure build up
  • Direct replacement for any standard API 12 or ASME Emergency Relief Vent
  • Easy maintenance reduces downtime and operational costs
  • Sizes: 8”, 12”, 16”, 20”, 24”
  • Bolting: API and ASME 150#
  • Available Pressure Settings: 4 to 32 osig (in 0.5 osig Increments)
  • +/- 3% Set Pressure Accuracy
  • Leak Rate of no more than 1 SCFH of air at 90% of set pressure
  • Base & Arm: Carbon Steel or Stainless Steel
  • Diaphragm Materials: Buna-N (black), FKM (blue) or FEP (clear)
    • Pallet: Stainless Steel
  • Aluminum for 8” size pressure setting between 4.0 through 5.5 osig only
  • Reinforcement Plate*: Stainless Steel*
    • Reinforcement plate is required for pressure ranges: 8” 20.5 to 32 osig and 12” 8.5 to 32 osig
    • Required for 16”, 20” and 24” sizes
  • Weld Overlay Seat: Stainless Steel
DIMENSIONS
Size
In (mm)		 A
In (mm)		 B
In (mm)		 C
In (mm)		 D
In (mm)
8
(200)		 24
(610)		 8.04
(204)		 5.82
(148)		 12.5
(342.9)
12
(300)		 28.5
(724)		 13.32
(338)		 6.81
(173)		 19
(482.6)
16
(400)		 47
(1194)		 20
(508)		 14
(356)		 27
(686)
20
(500)		 57
(1448)		 23
(584)		 14
(356)		 30
(762)
24
(600)		 62
(1575)		 25
(635)		 14.5
(368)		 35
(889)

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