The heat exchangers below are 1:1 replacements for the Alfa Laval CB112
Fits directly without modifying your pipework — delivered quickly from our own stock.
Installer or service company?
Installers and service companies order from their own net price list once their business account has been approved.

Alfa Laval CB112-38H can be replaced by UNEX PB34M-40
UNEX PB34M-40
1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

Alfa Laval CB112-46H can be replaced by UNEX PB34M-50
UNEX PB34M-50
1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

Alfa Laval CB112-54H can be replaced by UNEX PB34M-50
UNEX PB34M-50
1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

Alfa Laval CB112-62H can be replaced by UNEX PB34M-60
UNEX PB34M-60
1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

Alfa Laval CB112-72H can be replaced by UNEX PB34M-70
UNEX PB34M-70
1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

Alfa Laval CB112-100H can be replaced by UNEX PB34M-100
UNEX PB34M-100
1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread
Replacing the Alfa Laval CB112 with the UNEX PB34
Is there a Alfa Laval CB112 in your installation that leaks or is losing capacity? The UNEX PB34 takes its place without any change to the pipework.
Port centres
519 × 92 mm
Connections
G2" external thread
Number of plates
40 to 100 plates, 6 versions
Stock
Available on request
Read the number of plates from the nameplate of your Alfa Laval CB112 and choose the UNEX PB34 with the same number in the table above. That version has the same length and comparable capacity; more plates means more capacity but also a longer unit. The UNEX PB34 is copper-brazed with stainless steel plates.
Want to be certain you pick the right version? Send us the type number or a photo of the nameplate via the contact form. Our specialists check the dimensions and send a no-obligation quote within one working day, including insulation and mounting materials if required.
Frequently asked questions about replacing the Alfa Laval CB112
Will the UNEX PB34 fit my Alfa Laval CB112 without modifications?
Yes. The replacement has the same port-to-port dimensions (519 × 92 mm) and the same connections (G2" external thread), so the existing pipework does not need to be modified.
Is the replacement for the Alfa Laval CB112 available from stock?
The versions are available on request; contact us for current lead times.
Which plate counts are available?
The replacements are available from 40 to 100 plates, in 6 versions. Choose the version with the same plate count as your current Alfa Laval CB112.
What does it cost to replace a Alfa Laval CB112?
Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.
