heat exchanger replacement

The heat exchangers below are 1:1 replacements for the Kelvion GBS300H

Fits directly without modifying your pipework — delivered quickly from our own stock.

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UNEX PB5H-10 — replacement for Kelvion GBS300H-10

Kelvion GBS300H-10 can be replaced by UNEX PB5H-10

UNEX PB5H-10

Available on request

1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

UNEX PB5H-14 — replacement for Kelvion GBS300H-14

Kelvion GBS300H-14 can be replaced by UNEX PB5H-14

UNEX PB5H-14

In stock — fast delivery

1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

UNEX PB5H-20 — replacement for Kelvion GBS300H-20

Kelvion GBS300H-20 can be replaced by UNEX PB5H-20

UNEX PB5H-20

On order

1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

UNEX PB5H-24 — replacement for Kelvion GBS300H-24

Kelvion GBS300H-24 can be replaced by UNEX PB5H-24

UNEX PB5H-24

Available on request

1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

UNEX PB5H-30 — replacement for Kelvion GBS300H-30

Kelvion GBS300H-30 can be replaced by UNEX PB5H-30

UNEX PB5H-30

On order

1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

UNEX PB5H-40 — replacement for Kelvion GBS300H-34

Kelvion GBS300H-34 can be replaced by UNEX PB5H-40

UNEX PB5H-40

In stock — fast delivery

1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

UNEX PB5H-44 — replacement for Kelvion GBS300H-44

Kelvion GBS300H-44 can be replaced by UNEX PB5H-44

UNEX PB5H-44

Available on request

1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

UNEX PB5H-50 — replacement for Kelvion GBS300H-50

Kelvion GBS300H-50 can be replaced by UNEX PB5H-50

UNEX PB5H-50

In stock — fast delivery

1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

Looking for a replacement for the Kelvion GBS300H? The UNEX PB5 takes the place of this unit 1:1: identical port-to-port dimensions (120 × 73 mm), so the existing pipework remains unchanged and installation is quickly done. The PB5 is a compact brazed plate heat exchanger with AISI 316L stainless steel plates, copper-brazed. The connections are 22.35 mm solder or G1" male thread (combi connection: both usable) — the same port can therefore be soldered or connected with a threaded fitting, whichever suits your system best. The series comprises versions from 10 to 50 plates; keep the plate count of your GBS300H. A GBS300H-14, for example, is replaced by the PB5H-14. Some versions are in stock at our warehouse in Oosterhout (the Netherlands); the other versions are quickly available on request. Use the table above to find the right replacement by type number. Need help selecting the right version? Call +31 (0)162 429 068 or request a no-obligation quotation — you will have a 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.

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Response within one working day

Heat exchanger news, once a month

New series, replacement options and technical articles. No offers, no drip campaigns.

You will first receive a confirmation email. How we handle your data is described in our privacy policy.

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