The brazed plate heat exchanger is the single most efficient compact plate type heat exchanger in the market. They are used in a wide variety of hydronic heating systems in the hydronics industry ranging from snow-melt of driveways to radiant floor heating, domestic water heating and several other interesting applications.
How the brazed heat exchanger operates: The flow pattern of the brazed heat exchanger is similar to any other plate heat exchanger. The compressed plate pack creates a continuous series of channels. The plate and porthole arrangements permit the two heat-transfer media to travel in alternate channels in a counter flow manner.
The efficiency of these heat exchangers is high due to the turbulent flow patterns of the fluids through the channels. This allows for a very close temperature approach of 2-3° F resulting in economic heat extraction. Advantages of the brazed heat exchanger in hydronic applications:
They have a high temperature/pressure rating. All Alfa Laval brazed heat exchangers have a 437° F and 435 psig rating.
Footprint size of the heat exchanger is small, permitting a large duty to be done with minimal space
Brazing creates a strong bond between the plates of the heat exchanger. This eliminates the need for heavy frames to keep the plates together resulting in a lightweight unit.
Complete range of hydronic heat exchangers available in stock for immediate delivery
The brazed heat exchanger is a lower cost alternative to the conventional Shell & Tube heat exchangers due to them being much more efficient.
AIC LA14-20X Stainless Steel Plate Heat Exchanger
L-Line Single Wall Heat Exchangers
Single Wall Brazed Plate Heat Exchangers
Designed for maximum performance, the L-Line heat exchanger's compact, rugged assembly is composed of stainless steel plate packs sealed together by means of brazing metal along the border of the units. This eliminates the need for traditional gaskets or external pressure retaining parts.
The plate packs are embossed with special corrugation patterns to promote high turbulance flow, which dramatically increases the heat transfer rates of the units thus making them a highly economical and effective solution for many process and heating applications
APPLICATIONS
Central Heating
Oil Coolers
Hydronic Heating
Solar and Geothermic Heating
Industrial Process Heat Recovery
Condensers and Evaporators in Refrigeration systems
Close approach fluid-to-fluid heat transfer
Excellent for use in wood boiler industry
Standard Materials:
Stainless Steel heating plates
Copper brazing material
Standard Working Pressure:
Up to 480 PSI (3.31 MPa)
Standard Working Temperature:
Up to 445°F (230°C)
Model
Dimensions
mm (in)
A
B
C
D
F
LA14
194(7.6)
80(3.1)
154(6.1)
40(1.6)
10.0+2.3NP(0.39+0.09NP)
LB31
306(12.0)
126(5.0)
250(9.8)
70(2.8)
12.4+2.4NP(0.49+0.09NP)
LB60
506(19.9)
126(5.0)
444(17.5)
64(2.5)
12.4+2.4NP(0.49+0.09NP)
LC110X
530(20.9)
248(9.8)
456(17.9)
174(6.9)
13.0+2.4NP(0.51+0.09NP)
LC110Y
523(20.6)
241(9.5)
430(16.9)
148(5.8)
13.4+2.8NP(0.53+0.11NP)
LC110Z
523(20.6)
241(9.5)
430(16.9)
148(5.8)
13.4+2.8NP(0.53+0.11NP)
*NP - Number of plates
Model
Plate
Channel
Maximum
Maximum
Weight
Area
Volume
Flow
Number
(empty)
m2(sqft)
L/(USGAl)
L/min (GPM)
of Plates
kg(lb)
LA14
0.012(0.13)
0.021(0.005)
110(29)
50
0.8+0.05NP(1.8+0.10NP)
LB31
0.032(0.34)
0.054(0.014)
290(77)
100
2.2+0.16NP(4.8+0.35NP)
LB60
0.058(0.62)
0.097(0.026)
240(63)
100
3.6+0.25NP(7.9+0.55NP)
LC110X
0.113(1.22)
0.196(0.052)
450(119)
140
7.2+0.52NP(15.8+1.14NP)
LC110Y
0.104(1.12)
0.216(0.057)
700(185)
140
7.2+0.55NP(15.8+1.21NP)
LC110Z
0.104(1.12)
0.216(0.057)
900(238)
160
7.3+0.55NP(15.9+1.21NP)
STANDARD CONNECTIONS
Solder
Threaded
Model
in
in
LA14
7/8"
3/4"
LB31
1-1/8"
1"
LB60
1-1/8"
1"
LC110X
1-5/8"
1-1/2"
LC110Y
1-5/8"
2-1/2"
LC110Z
1-5/8"
3"
Specifications may change without notice. Contact AIC to verify product specifications and performance.
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