190.210-IOM (FEB 20)
Page 4
LAZERWELD II PLATE HEAT EXCHANGER
INSTALLATION - OPERATION - MAINTENANCE
Table 1: LZWII main components
Bolt protection
Plastic tubes that protect the threads of the tightening bolts
Carrying bar
Carries the plate pack and the pressure plate
Frame plate
Fixed steel plate with a number of port holes for the connection of the piping system. The carrying
and guiding bars are supported by the frame plate
Guiding bar
Keeps the channel plates and the pressure plate in line at their lower end
Plate pack
Heat is transferred from one medium to the other through the plates. The plate pack consists of semi
welded plates in pairs which form a cassette (twin plate), gaskets, and distance sheets. The measure
of the plate pack is the measurement between the frame plate and pressure plate. Refer to the sub-
mittal drawing for this dimension
Port holes with stud
bolt connections
Port holes through the frame plate allow the media to enter into or exit from the heat exchanger.
Different types of connections can be used to connect the piping system to the apparatus. Threaded
stud bolts around the port holes secure the connections to the apparatus. The port holes may be
protected against corrosion by metal linings. The LZWII can be equipped with different connection
types. For details, refer to LZWII drawings supplied with product
Flanged pipe
connection
Illustration of connection type used for LZWII-4B
Pressure plate
Moveable steel plate that can contain a number of port holes for the connection of the piping system.
Covers
Used as blind flange or inspection cover at the LZWII port holes
Supporting column
Supports carrying and guiding bars
Tightening bolts
Compress the plate pack between the frame and pressure plate
Figure 1: LZWII main components
Port hole with stud
bolt connections
Tightening bolts
Frame plate
Distance sheets
Carrying bar
Bolt protection
Supporting column
Pressure plate
Guiding bar
Plate pack
Partition plate
Flanged pipe connection
