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Single or Double Wall

L-Line Brazed Plate Heat Exchangers

Designed for Maximum Performance

Brazed plate heat exchangers consist of stainless steel plate, which have embossed chevron patterns. The plates are turned 180° to each other, causing the plate ridges to intersect, and creating a lattice of intersecting channels. The fluids can flow in counter-current or co-current way.

Special corrugation patterns promote high turbulence flow. Turbulence dramatically improves heat transfer rates and reduces the amount of deposits inside the unit.

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Three AIC L-Line brazed plate heat exchangers, stainless steel plates with copper brazing
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Single Wall Brazed Plate Heat  Exchangers

Single Wall features:

  • Compact models with high heat transfer capacity
  • Stainless steel plates with corrugated surface ensure turbulent flow and structural support to the unit
  • High heat transfer coefficient 
  • Cost efficiency
  • Single or double wall option
  • Copper, nickel and stainless brazing material available 
  • Quick and easy installation
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AIC brazed plate heat exchanger plate with a close-up of the corrugated plate pattern
  1. Stainless steel 316 Heat Transfer plates

  • Specifications

  • Technical

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Choose from Single or Double Wall Brazed Plates 

  • Maximum Working Parameters

    Pressure

    • Up to 650 PSI (4.48 MPa)

    Temperature

    • Up to 445°F (230°C)

    Materials

    • Standard:  Stainless Steel SS316L Heating Plates
    • Brazing: Copper, Nickel, and Stainless

  • Applications

    • Condensers and evaporators in refrigeration systems
    • Oil coolers
    • Close approach fluid-to-fluid heat transfer
    • Industrial process heat recovery
    • Solar and geothermal heating
    • Hydronic heating and cooling
    • District heating and cooling
    • Gas cooling

    • L-Line Technical Product Specifications

    Single Wall
    Model Dimensions mm(in) Maximum Flow Max. Number of Plates Weight (Empty)
    ABCDF L/min(GPM)kg(lb)
    LA 14 194(7.6) 80(3.1) 154(6.1) 40(1.6) 10+2.3NP
    (0.39+0.09NP)    		 110(29) 60 0.8+0.05NP
    (1.8+0.10NP)
    LA 22 300(11.8) 79(3.1) 260(10.2) 42(1.7) 9.0+2.3NP
    (0.36+0.09NP)    		 68(18) 60 1.1+0.09NP
    (2.4+0.20NP)
    LA 34 468(11.5) 80(3.1) 432(17.0) 42(1.7) 9.0+2.3NP
    (0.36+0.09NP)    		 68(18) 60 1.7+0.12NP
    (3.7+0.26NP)
    LB 31 306(12.0) 126(5.0) 250(9.8) 70(2.8) 10+2.5NP
    (0.39+0.10NP)    		 212(56) 150 1.6+0.15NP
    (3.5+0.33NP)
    LB 47 414(16.3) 122(4.8) 360(14.2) 68(2.7) 10+2.5NP
    (0.39+0.10NP)    		 212(56) 150 2.1+0.18NP
    (4.6+0.40NP)
    LB 60 506(19.9) 126(5.0) 444(17.5) 64(2.5) 10+2.5NP
    (0.39+0.10NP)    		 212(56) 150 3.5+0.24NP
    (7.7+0.53NP)
    LC 110X 530(20.9) 248(9.8) 456(17.9) 174(6.9) 11.5+2.4NP
    (0.45+0.09NP)    		 450(119) 200 7.2+0.52NP
    (15.8+1.14NP)
    LC 110H 463(18.2) 255(10.0) 378(14.9) 170(6.7) 10.0+2.4NP
    (0.39+0.09NP)    		 550(145) 200 4.3+0.39NP
    (9.4+0.86NP)
    LC 110L 463(18.2) 255(10.0) 378(14.9) 170(6.7) 10.0+2.4NP
    (0.39+0.09NP)    		 650(172) 200 4.3+0.39NP
    (9.4+0.86NP)
    LC 110Y 523(20.6) 241(9.5) 430(16.9) 148(5.8) 13.4+2.8NP
    (0.53+0.11NP)    		 700(185) 200 7.2+0.55NP
    (15.8+1.21NP)
    LC 110Z 523(20.6) 241(9.5) 430(16.9) 148(5.8) 13.4+2.8NP
    (0.53+0.11NP)    		 900(238) 200 7.7+0.55NP
    (16.9+1.21NP)
    LC 170 685(27.0) 255(10.0) 600(23.6) 170(6.7) 10.0+2.4NP
    (0.39+0.09NP)    		 500(132) 200 5.9+0.60NP
    (13.0+1.32NP)
    LD 235 784(30.9) 306(12.0) 682(26.9) 204(8.0) 12.0+2.6NP
    (0.47+0.10NP)    		 1500(396) 280 19.0+0.81NP
    (41.8+1.78NP)
    LE 400 1008(39.7) 387(15.2) 861(33.9) 240(9.4) 17.0+2.75NP
    (0.67+0.10NP)    		 4000(1056) 400 100+1.8NP
    (221+3.97NP)
    Double Wall
    Model Dimensions mm(in) Maximum Flow Max. Number of Plates Weight (Empty)
    ABCDF L/min(GPM)kg(lb)
    LA14DW 201(7.9) 80(3.1) 164(6.5) 42(1.7) 10+2.4NP
    (0.39+0.09NP)    		 110(29) 60 0.8+0.05NP
    (1.8+0.10NP)
    LA22DW 300(11.8) 80(3.1) 260(6.5) 42(1.7) 10+2.4NP
    (0.39+0.09NP)    		 68(18) 60 1.1+0.08NP
    (2.4+0.18NP)
    LA34DW 469(18.5) 80(3.1) 432(17.0) 42(1.7) 10+2.4NP
    (0.39+0.09NP)    		 68(18) 60 1.7+0.12NP
    (3.7+0.26NP)
    LB31DW 286(11.3) 117(4.6) 232(9.1) 68(2.7) 10+2.5NP
    (0.39+0.10NP)    		 212(56) 150 1.9+0.12NP
    (4.2+0.26NP)
    LB31DW 414(16.3) 117(4.6) 360(14.2) 68(2.7) 10+2.5NP
    (0.39+0.10NP)    		 212(56) 150 2.3+0.19NP
    (5.1+0.42NP)
    LB60DW 534(21.0) 117(4.6) 480(18.9) 68(2.7) 10+2.5NP
    (0.39+0.10NP)    		 212(56) 150 2.6+0.24NP
    (5.7+0.53NP)
    LC110DW 463(18.2) 225(8.9) 378(14.9) 170(6.7) 11+2.5NP
    (0.43+0.10NP)    		 550(146) 200 4.3+0.39NP
    (9.5+0.86NP)
    NP-Number of Plates
    Single Wall
    Model SolderThreaded
    d* (in)d (in)
    LA 14 7/8" 3/4"
    LA 22 7/8" 3/4"
    LA 34 1 1/8" 1"
    LB 31 1 1/8" 1"
    LB 47 1 1/8" 1"
    LB 60 1 1/8" 1"
    LC 110X 1 5/8", 2" 1 1/2", 2"
    LC 110H 1 5/8" 2 1/2"
    LC 110L 1 5/8" 2 1/2"
    LC 110Y 1 5/8" 2 1/2"
    LC 110Z 1 5/8" 3"
    LC 170 1 5/8" 2 1/2"
    LD 235 2 1/8" 3" (Flange)
    LE 400 - 4" (FLANGE)
    Double Wall
    Model SolderThreaded
    d* (in)d (in)
    LA14DW 7/8" 3/4"
    LA22DW 7/8" 3/4"
    LA34DW 1 1/8" 1"
    LB31DW 1 1/8" 1"
    LB47DW 1 1/8" 1"
    LB60DW 1 1/8" 1"
    LC110DW 1 5/8" 2 1/2"
    * inner diameter of connection

    The product information and literature on this website are intended as a guideline for general purposes only. Models, dimensions, and operational parameters are subject to change at AIC's discretion. Contact AIC directly for updated design specifications.

    AIC L-Line brazed plate heat exchanger

    Double Wall Brazed Plate Heat Exchangers

    The design of the double wall brazed plate heat exchanger reduces the risk of cross contamination of fluid streams if there is an internal leak within the unit.

    Two stainless steel plate walls separate the fluid streams, with an air gap in between. In the event of a leak, the affected fluid will flow into the air gap and escape out of the heat exchanger, enabling visual detection of the leak.

    Double Wall features:

    • Visual leak detection
    • Reduces risk of fluid cross-contamination
    • High thermal efficiency
    • Compact design, small footprint
    Close-up of a double wall brazed plate showing the leak path between the two walls

    Leaks escape into the atmosphere through the air gap between the double walls.