The heat exchangers below are 1:1 replacements for the Kelvion GBS300H
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 GBS300H-10 can be replaced by UNEX PB5H-10
UNEX PB5H-10
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread
Kelvion GBS300H-14 can be replaced by UNEX PB5H-14
UNEX PB5H-14
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread
Kelvion GBS300H-20 can be replaced by UNEX PB5H-20
UNEX PB5H-20
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread
Kelvion GBS300H-24 can be replaced by UNEX PB5H-24
UNEX PB5H-24
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread
Kelvion GBS300H-30 can be replaced by UNEX PB5H-30
UNEX PB5H-30
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread
Kelvion GBS300H-34 can be replaced by UNEX PB5H-40
UNEX PB5H-40
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread
Kelvion GBS300H-44 can be replaced by UNEX PB5H-44
UNEX PB5H-44
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread
Kelvion GBS300H-50 can be replaced by UNEX PB5H-50
UNEX PB5H-50
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread
Replacing the Kelvion GBS300H with the UNEX PB5
Is there a Kelvion GBS300H in your installation that leaks or is losing capacity? The UNEX PB5 takes its place without any change to the pipework.
Port centres
120 × 73 mm
Connections
22,35 mm solder or G1" external thread
Number of plates
10 to 50 plates, 8 versions
Stock
3 of 8 versions in stock
Like the Kelvion GBS300H, the UNEX PB5 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 GBS300H
Will the UNEX PB5 fit my Kelvion GBS300H without modifications?
Yes. The replacement has the same port-to-port dimensions (120 × 73 mm) and the same connections (22,35 mm solder, G1" external thread), so the existing pipework does not need to be modified.
Is the replacement for the Kelvion GBS300H available from stock?
3 of the 8 versions are in stock in our warehouse in Oosterhout, the Netherlands, and are delivered quickly. The other versions are available on request.
Which plate counts are available?
The replacements are available from 10 to 50 plates, in 8 versions. Choose the version with the same plate count as your current Kelvion GBS300H.
What does it cost to replace a Kelvion GBS300H?
Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.
