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Paraflow Plate Heat Exchanger
Instruction Manual
Section 3.0 Issue 5
Page 14 of 36 June 13, 2008
The clip in gaskets (Paraclip) are attached to the
plates by small nubs around the perimeter of the
gasket which snap into matching holes.
3.4 Intermediate Connector Grids
These intermediate connector grids divide the plate
heat exchanger into separate sections that may
operate independently. The connector grids are
equipped with removable connector bosses (
Figure
10) that provide connections for the liquids handled.
The connector grid bosses form the connecting link
between sections of the plate heat exchanger and
provide connections to and from these sections. On
some models, two connections can be provided in
the same connector grid boss with connections to
the adjoining sections.
3.5 General Arrangement Drawing
A General Arrangement Drawing is supplied with
each APV Paraflow Plate Heat Exchanger. This
drawing provides detailed information concerning
design specifications, operating conditions,
dimensions, connections, plates and gaskets, plate
arrangement diagram and key, bill of material and
special notes.
Design Specifications
The data list on the design specifications provides
the key mechanical information used to design the
plate heat exchanger. This includes the design
code, maximum allowable working pressure and
temperature, maximum and minimum platage
dimensions, heat transfer area, frame size,
maximum plate capacity, weights and volume.
Operating Conditions
This table on the drawing contains the duty or
operating conditions for which the heat exchanger
was designed. It specifies each fluid, the flow rates,
the temperatures and the pressure drops.
Connection Schedule
The connection schedule identifies the size, material
and type of each connection supplied.
Plate and Gasket List
Each general arrangement drawing contains a
summary of all the plates and gaskets used for the
plate arrangement. This summary includes plate
types, angles and material, and also gasket type,
material and attachment (glued or clip in).
3.6 Plate Arrangement Diagram
Configuration of the Diagram
The plate heat exchanger is designed to perform a
duty (or duties) by arranging the number and type of
plates required in a specific sequence. This
arrangement is represented schematically by the
plate diagram shown on the general arrangement
drawing. The schematic represents the fluid flows
by heavy lines with arrows and the plates by thin
vertical lines. Plate ports that block flow (not open)
are represented by small black rectangles.
Each connection on the plate diagram is identified
and labeled. The connections are also identified on
the dimensioned view or the isometric view of the
plate heat exchanger and the Connection Schedule.
Along the top of this diagram is a listing of each
plate required, showing the hand of each plate
(Right or Left), the direction the gaskets face (Head
or Follower) and the punch code (blanking
designation). The punch code indicates which ports
are open and allow flow. Additional codes may be
listed indicating plates with drains (D) and vents (V)
or plates with end gaskets (K). Other symbols may
be used to indicate special support pads or gaskets.
The general arrangement drawing includes a key
which illustrates the punch codes. The punch codes
are also illustrated on the following pages in
Figure
11 for vertical flow plates and Figure 12 for diagonal
flow plates.
Figure 10
Kemper County MM218132 Approved