heat exchanger replacement

The heat exchangers below are 1:1 replacements for the Kelvion GBS525M

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 PBG20M-10 — replacement for Kelvion GBS525M-10

Kelvion GBS525M-10 can be replaced by UNEX PBG20M-10

UNEX PBG20M-10

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

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UNEX PBG20M-14 — replacement for Kelvion GBS525M-14

Kelvion GBS525M-14 can be replaced by UNEX PBG20M-14

UNEX PBG20M-14

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

UNEX PBG20M-20 — replacement for Kelvion GBS525M-20

Kelvion GBS525M-20 can be replaced by UNEX PBG20M-20

UNEX PBG20M-20

In stock — fast delivery

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

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UNEX PBG20M-24 — replacement for Kelvion GBS525M-24

Kelvion GBS525M-24 can be replaced by UNEX PBG20M-24

UNEX PBG20M-24

In stock — fast delivery

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

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UNEX PBG20M-30 — replacement for Kelvion GBS525M-30

Kelvion GBS525M-30 can be replaced by UNEX PBG20M-30

UNEX PBG20M-30

In stock — fast delivery

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

UNEX PBG20M-34 — replacement for Kelvion GBS525M-34

Kelvion GBS525M-34 can be replaced by UNEX PBG20M-34

UNEX PBG20M-34

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

UNEX PBG20M-40 — replacement for Kelvion GBS525M-40

Kelvion GBS525M-40 can be replaced by UNEX PBG20M-40

UNEX PBG20M-40

In stock — fast delivery

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

UNEX PBG20M-44 — replacement for Kelvion GBS525M-44

Kelvion GBS525M-44 can be replaced by UNEX PBG20M-44

UNEX PBG20M-44

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

UNEX PBG20M-50 — replacement for Kelvion GBS525M-50

Kelvion GBS525M-50 can be replaced by UNEX PBG20M-50

UNEX PBG20M-50

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

UNEX PBG20M-70 — replacement for Kelvion GBS525M-60

Kelvion GBS525M-60 can be replaced by UNEX PBG20M-70

UNEX PBG20M-70

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

UNEX PBG20M-80 — replacement for Kelvion GBS525M-80

Kelvion GBS525M-80 can be replaced by UNEX PBG20M-80

UNEX PBG20M-80

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

UNEX PBG20M-90 — replacement for Kelvion GBS525M-90

Kelvion GBS525M-90 can be replaced by UNEX PBG20M-90

UNEX PBG20M-90

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

UNEX PBG20M-100 — replacement for Kelvion GBS525M-100

Kelvion GBS525M-100 can be replaced by UNEX PBG20M-100

UNEX PBG20M-100

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

Request a quote View in webshop

Anyone replacing a Kelvion GBS525M usually wants two things: a heat exchanger that fits straight away and a short delivery time. The UNEX PBG20 offers both. The port-to-port dimensions are identical (476 × 69 mm), so the replacement connects to the existing pipework without modifications. The PBG20 has a combi connection: 22.35 mm solder or G1" male thread (combi connection: both usable). You decide whether to solder or use a threaded fitting — both work on the same port. The unit is built from AISI 316L stainless steel plates, copper-brazed, and the series ranges from 10 to 100 plates. Keep the plate count of your GBS525M: a GBS525M-44 thus becomes the PBG20M-44. Some versions are in stock at our warehouse in Oosterhout (the Netherlands); the other versions are quickly available on request. Look up your type number in the table above to find the right replacement. Prefer to talk it through with a specialist? Call +31 (0)162 429 068 or request a no-obligation quotation; you will receive our quote within one working day.

Frequently asked questions about replacing the Kelvion GBS525M

Will the UNEX PBG20 fit my Kelvion GBS525M without modifications?

Yes. The replacement has the same port-to-port dimensions (476 × 69 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 GBS525M available from stock?

4 of the 13 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 100 plates, in 13 versions. Choose the version with the same plate count as your current Kelvion GBS525M.

What does it cost to replace a Kelvion GBS525M?

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