190.210-IOM (FEB 20)
Page 5
LAZERWELD II PLATE HEAT EXCHANGER
INSTALLATION - OPERATION - MAINTENANCE
NAMEPLATE
On the nameplate you can find the type of unit, manufac
-
turing number, and manufacturing year. You can also find
pressure vessel details in accordance with the applicable
pressure vessel code. The nameplate is most commonly
fixed to the frame plate, or the pressure plate.
WARNING
For each unit, the mechanical design pressures and
temperatures are marked on the nameplate. These
must not be exceeded.
The mechanical design pressure and the design tempera-
ture as given on the name plate are the values to which
the plate heat exchanger (PHE) is approved to the pressure
vessel code in question. The mechanical design tempera-
ture may exceed the maximum operating temperature
established for the gasket material lifetime. If the operat-
ing temperatures as specified on the assembly drawing are
to be exceeded, consult the supplier.
Figure 3: Nameplate
Material No.
FRICK Sales Order No.
Tag No. (Optional)
FOR PARTS, SERVICE AND AFTER MARKET ASSISTANCE
CALL 1-717-762-2121 | www.frickcold.com
FUNCTION
The LZWII consists of a set of corrugated metal plates
with port holes for inflow and outflow of two separate
fluids. The plates are arranged as cassettes (twin plates) in
such a way that every second channel is welded, and ev-
ery other channel is gasketed. The heat transfer between
the two fluids takes place through the plates. The cassette
concept gives rise to two different types of channel -
welded channels used for the aggresive primary media and
gasketed channels used for the non-aggresive secondary
media.
The plate pack is assembled between a frame plate and
a pressure plate and compressed by tightening bolts. The
plates are fitted with a gasket that seals the channel and
directs the fluids into alternate channels. The plate cor
-
rugation promotes fluid turbulence and supports the plates
against differential pressure.
