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LaMOT Valve & Arrestor

LaMOT Valve & Arrestor is renowned for their expertise in manufacturing high-performance pressure relief valves, flame arrestors, and industrial safety solutions. Their products ensure enhanced safety, operational efficiency, and regulatory compliance across many industries including oil & gas, petrochemical, and industrial processing. By integrating LaMOT's advanced solutions into our portfolio, we strengthen our ability to support our clients with superior performance, increased efficiency, and cost-effective safety solutions.

Inline Vent Valve - L10L

The L10L design was created to exceed industry needs. Extensive research and development has produced a product that achieve both superior sealing performance and industry leading flow rates.

Available Sizes: 2” (50mm), 3” (75mm) and 4” (100mm)
Pressure Settings: 1 to 16 osig (in 1.0 osig Increments)
Vacuum Settings: 0.4 osig (for pressure/vacuum configuration), None (for pressure only configuration)
Valve Configuration: Pressure / Vacuum, Pressure Only
Casting: Aluminum
Diaphragm Materials: Black Buna-N, Blue FKM
Flange Gasket: Black Buna-N, Blue FKM
Weight: Zinc-Plated Steel or Stainless Steel
Optional: Polyester/PTFE Coating

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End of Line Stack Vent Valve L10E

The L10E design was created to exceed industry needs. Extensive research and development has produced a product that achieve both superior sealing performance and industry leading flow rates.

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Weight Loaded Pressure Relief Valve L11E

LaMot Valve & Arrestor Model L11E weight loaded pressure relief valve is designed to be used in applications where additional relief is necessary. It can be used in conjunction for emergency relief but that is not why it was designed. Pressure relief valves provide relief from excessive internal pressure which may cause tank damage. Calibrated weights are available for various setting.

Size: 2” (50mm) through 10″ (250mm)

Casting Material: Aluminum (non-sparking), Carbon Steel, Stainless Steel

Pallet Material: Polyphenylene Sulfide (PPS)

Diaphragm Materials: Buna-N, Blue FKM or FEP

Calibrated Weight Material: Zinc-Plated Steel (for Aluminum and Carbon Steel
valves), Stainless Steel (for Stainless Steel valves)

Bolting Class: 150# ASME

Pressure Settings: 0.5 osig to 24 osig (0.5 osig increments)

Leak Rate is compliant with API 2000

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Pressure/Vacuum Relief Valve L12E

The LaMOT Valve & Arrestor Model L12E PVRV design was created to exceed industry needs. Extensive research and development have produced a product that achieve both superior sealing performance and industry leading flow rates, while also allowing customers to reach required flow with a potentially smaller sized valve. The 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. The Model L12E superior sealing valves are developed to minimize fugitive emissions while providing increased protection and safety to tank equipment and on-site personnel.

Size: 2” (50mm) through 10” (250mm)
Body Material: Aluminum, Carbon Steel, Stainless Steel
Pallet Material: PPS (Polyphenylene Sulfide)
Diaphragm Materials: Buna-N, Blue FKM or FEP
Calibrated Weight Material: Zinc-Plated Steel (for Aluminum and Carbon Steel valves), Stainless Steel (for Stainless Steel valves)
Bolting Class: 150# ASME
Available Pressure Settings: 0.5 osig to 24 osig (in 0.5 osig Increments)
Available Vacuum Settings: 0.4 osig, 0.5 osig to 24 osig (in 0.5 osig increments)
Leak Rate is compliant with API 2000
Vent to Atmosphere, Pressures up to 24 osig

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LaMot Threaded In Line Flame Arrestor L76T

Threaded In-Line Flame Arrestor L76T-UF

The L76T-UF model is designed to inhibit flame propagation in gas piping systems and to protect low pressure tanks containing flammable liquids. Arrestors protect low flash point liquids from external sources of ignition. This provides increased fire protection and safety.

Connection Sizes: 2”, 3” and 4” NPT
Housing standard material: carbon steel, 316SS
Bases standard material: carbon steel
Flame element standard material: stainless steel
Operational Temperature Range: -4 to 140 oF (-20 to 60 oC)
Gas Group: NEC D; IEC IIA (MESG > 0.90 mm)
Maximum Operational Pressure: (see charts and IOM)
Burn Time: tBT 2.5 minutes or better at Atmospheric Pressure (see charts and IOM) • Bi-directional with respect to flow and ignition source

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Round Pan Thief Hatch LH12-TH

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.

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

Casting: Aluminum (non-sparking)

Envelope Gasket: HNBR, FKM or Fluorosilicone

Vacuum Diaphragm: HNBR, FKM, Fluorosilicone or Fluoropolymer

Springs: Galvanized Steel or Inconel® X-750

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LaMOT Valve & Arrestor