The heat exchangers below are 1:1 replacements for the Kelvion GBS800H
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.

Kelvion GBS800H-50 can be replaced by UNEX PB44-50
UNEX PB44H-50
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Kelvion GBS800H-60 can be replaced by UNEX PB44-60
UNEX PB44H-60
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Kelvion GBS800H-80 can be replaced by UNEX PB44-80
UNEX PB44H-80
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Kelvion GBS800H-100 can be replaced by UNEX PB44-100
UNEX PB44H-100
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Kelvion GBS800H-120 can be replaced by UNEX PB44-120
UNEX PB44H-120
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Kelvion GBS800H-150 can be replaced by UNEX pb44-150
UNEX PB44H-150
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Kelvion GBS800H-180 can be replaced by UNEX pb44-180
UNEX PB44H-180
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder

Kelvion GBS800H-200 can be replaced by UNEX pb44-200
UNEX PB44H-200
1:1: same port-to-port dimensions (420 × 160 mm) and connection G2½" external thread or 54 mm solder
Replacing the Kelvion GBS800H with the UNEX PB44
Replacing a Kelvion GBS800H with the UNEX PB44 is a straight swap: port centres and connections are identical, so the existing pipes stay exactly where they are.
Port centres
420 × 160 mm
Connections
54 mm solder or G2½" external thread
Number of plates
50 to 200 plates, 8 versions
Stock
Available on request
Like the Kelvion GBS800H, the UNEX PB44 is a brazed plate heat exchanger: stainless steel plates brazed together with copper, so no gaskets and compact. The table above shows the matching version for each type number — keep the number of plates of your current unit and the replacement fits exactly.
Matching insulation, brackets and connection sets can be ordered directly on the product page. Not sure which version you need? Send us the type or a photo of the nameplate via the contact form and you will receive a no-obligation quote within one working day.
Frequently asked questions about replacing the Kelvion GBS800H
Will the UNEX PB44 fit my Kelvion GBS800H without modifications?
Yes. The replacement has the same port-to-port dimensions (420 × 160 mm) and the same connections (54 mm solder, G2½" external thread), so the existing pipework does not need to be modified.
Is the replacement for the Kelvion GBS800H 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 50 to 200 plates, in 8 versions. Choose the version with the same plate count as your current Kelvion GBS800H.
What does it cost to replace a Kelvion GBS800H?
Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.
