Boiler house
Heat recovery systems
Dimensions / weights (approximate) in mm and kg
Size
A
B
C
D
E
F
G
L
Weight
Empty
Full
of water
M3-8
480
180
M3-10
480
180
M3-21
480
180
M3-31
480
180
M6-12
920
320
M6-15
920
320
M6-19
920
320
M6-21
920
320
M6-25
920
320
M6-33
920
320
357
357
357
357
640
640
640
640
640
640
G
60
60
60
60
140
140
140
140
140
140
L
62
62
62
62
140
140
140
140
140
140
11⁄4"
60
300
11⁄4"
60
300
11⁄4"
60
300
11⁄4"
60
300
2"
60
585
2"
60
585
2"
60
585
2"
60
585
2"
60
585
2"
60
585
Sizing
32
32
35
40
97
100
104
106
110
120
B
D
When the heat exchanger is used as part of the Spirax Sarco boiler
blowdown heat recovery system - refer to the appropriate literature.
Otherwise:
A
F
C
E
Plate heat exchanger
Type
M3-8
M3-10
M3-21
M3-31
M6-12
M6-15
M6-19
M6-21
M6-25
M6-33
Maximum blowdown capacity
(kg/h)
648
860
1 450
2160
2 750
4 900
5915
7110
8040
11 000
10
21
31
12
8
31
31
34
37
Safety information, installation and maintenance
This document does not contain enough information to install the product / system safely. For full details see the Installation and Maintenance
Instructions supplied with the product.
Installation notes:
The preferred method of installation is to bolt the heat exchanger rigidly to the floor, in a vertical position. We recommend the use of a
swan neck on the primary outlet (S2) to ensure the heat exchanger does not dry out - this can otherwise cause problems with debris and
can damage the gaskets.
Maintenance note:
An annual inspection is recommended to check for leaking gaskets and the build up of scale and sludge.
Spare parts
Spare plates with integral gaskets are available from Spirax Sarco.
How to order
Example: 1 off M6-23 plate heat exchanger having 2" screwed ISO R connections.
TI-P404-01 AB Issue 6
M3 and M6 Plate Heat Exchangers for Residual Blowdown
Number
of
plates
15
19
21
25
33
94
96
99
100
103
111
S4 S1
S3 S2
2.8.8
