heat exchanger replacement

The heat exchangers below are 1:1 replacements for the Kelvion GBS700H

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.

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UNEX PBG45H-30 — replacement for Kelvion GBS 700H-30

Kelvion GBS 700H-30 can be replaced by UNEX PBG45H-30

UNEX PBG45H-30

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

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UNEX PBG45H-34 — replacement for Kelvion GBS 700H-34

Kelvion GBS 700H-34 can be replaced by UNEX PBG45H-34

UNEX PBG45H-34

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

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UNEX PBG45H-40 — replacement for Kelvion GBS 700H-40

Kelvion GBS 700H-40 can be replaced by UNEX PBG45H-40

UNEX PBG45H-40

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

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UNEX PBG45H-50 — replacement for Kelvion GBS 700H-50

Kelvion GBS 700H-50 can be replaced by UNEX PBG45H-50

UNEX PBG45H-50

In stock — fast delivery

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

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UNEX PBG45H-60 — replacement for Kelvion GBS 700H-60

Kelvion GBS 700H-60 can be replaced by UNEX PBG45H-60

UNEX PBG45H-60

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-70 — replacement for Kelvion GBS 700H-70

Kelvion GBS 700H-70 can be replaced by UNEX PBG45H-70

UNEX PBG45H-70

In stock — fast delivery

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

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UNEX PBG45H-80 — replacement for Kelvion GBS 700H-80

Kelvion GBS 700H-80 can be replaced by UNEX PBG45H-80

UNEX PBG45H-80

On order — expected around 12/10/2026

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-90 — replacement for Kelvion GBS 700H-90

Kelvion GBS 700H-90 can be replaced by UNEX PBG45H-90

UNEX PBG45H-90

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-100 — replacement for Kelvion GBS 700H-100

Kelvion GBS 700H-100 can be replaced by UNEX PBG45H-100

UNEX PBG45H-100

In stock — fast delivery

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-110 — replacement for Kelvion GBS 700H-110

Kelvion GBS 700H-110 can be replaced by UNEX PBG45H-110

UNEX PBG45H-110

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-120 — replacement for Kelvion GBS 700H-120

Kelvion GBS 700H-120 can be replaced by UNEX PBG45H-120

UNEX PBG45H-120

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-130 — replacement for Kelvion GBS 700H-130

Kelvion GBS 700H-130 can be replaced by UNEX PBG45H-130

UNEX PBG45H-130

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-140 — replacement for Kelvion GBS 700H-140

Kelvion GBS 700H-140 can be replaced by UNEX PBG45H-140

UNEX PBG45H-140

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-150 — replacement for Kelvion GBS 700H-150

Kelvion GBS 700H-150 can be replaced by UNEX PBG45H-150

UNEX PBG45H-150

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

Has your Kelvion GBS700H reached the end of its service life? The UNEX PBG45 is the 1:1 replacement: identical port-to-port dimensions (460 × 198 mm) and the same G2" male thread connections. The new heat exchanger takes the exact place of the old one, without modifications to the pipework. The PBG45 is a brazed plate heat exchanger, built from AISI 316L stainless steel plates, copper-brazed. With versions from 30 to 150 plates the series covers the full GBS700H range; choose the variant with the same number of plates as your current unit. A GBS 700H-140, for example, is replaced by the PBG45H-140. Some versions are in stock at our warehouse in Oosterhout (the Netherlands); anything not in stock is delivered quickly on request. Use the table above to find the right version by type number. Do you have questions or would you like the price for your type? Call +31 (0)162 429 068 or request a no-obligation quotation online. You will receive our quote within one working day.

Frequently asked questions about replacing the Kelvion GBS700H

Will the UNEX PBG45 fit my Kelvion GBS700H without modifications?

Yes. The replacement has the same port-to-port dimensions (460 × 198 mm) and the same connections (G2" external thread), so the existing pipework does not need to be modified.

Is the replacement for the Kelvion GBS700H available from stock?

3 of the 14 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 30 to 150 plates, in 14 versions. Choose the version with the same plate count as your current Kelvion GBS700H.

What does it cost to replace a Kelvion GBS700H?

Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.