heat exchanger replacement

The heat exchangers below are 1:1 replacements for the GEA WTT GBS400H

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

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Installers and service companies order from their own net price list once their business account has been approved.

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UNEX PBU11-10 — replacement for GEA WTT GBS 400H-10

GEA WTT GBS 400H-10 can be replaced by UNEX PBU11-10

UNEX PBU11-10

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-14 — replacement for GEA WTT GBS 400H-14

GEA WTT GBS 400H-14 can be replaced by UNEX PBU11-14

UNEX PBU11-14

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-20 — replacement for GEA WTT GBS 400H-20

GEA WTT GBS 400H-20 can be replaced by UNEX PBU11-20

UNEX PBU11-20

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-24 — replacement for GEA WTT GBS 400H-24

GEA WTT GBS 400H-24 can be replaced by UNEX PBU11-24

UNEX PBU11-24

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-30 — replacement for GEA WTT GBS 400H-30

GEA WTT GBS 400H-30 can be replaced by UNEX PBU11-30

UNEX PBU11-30

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-34 — replacement for GEA WTT GBS 400H-34

GEA WTT GBS 400H-34 can be replaced by UNEX PBU11-34

UNEX PBU11-34

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-40 — replacement for GEA WTT GBS 400H-40

GEA WTT GBS 400H-40 can be replaced by UNEX PBU11-40

UNEX PBU11-40

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-44 — replacement for GEA WTT GBS 400H-44

GEA WTT GBS 400H-44 can be replaced by UNEX PBU11-44

UNEX PBU11-44

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-50 — replacement for GEA WTT GBS 400H-50

GEA WTT GBS 400H-50 can be replaced by UNEX PBU11-50

UNEX PBU11-50

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-60 — replacement for GEA WTT GBS 400H-60

GEA WTT GBS 400H-60 can be replaced by UNEX PBU11-60

UNEX PBU11-60

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-70 — replacement for GEA WTT GBS 400H-70

GEA WTT GBS 400H-70 can be replaced by UNEX PBU11-70

UNEX PBU11-70

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-80 — replacement for GEA WTT GBS 400H-80

GEA WTT GBS 400H-80 can be replaced by UNEX PBU11-80

UNEX PBU11-80

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-90 — replacement for GEA WTT GBS 400H-90

GEA WTT GBS 400H-90 can be replaced by UNEX PBU11-90

UNEX PBU11-90

Available on request

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

UNEX PBU11-100 — replacement for GEA WTT GBS 400H-100

GEA WTT GBS 400H-100 can be replaced by UNEX PBU11-100

UNEX PBU11-100

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 72 mm) and connection G1" external thread

When replacing, the UNEX PBU11 takes the exact place of the GEA WTT GBS400H. The port-to-port dimensions are identical (281 × 72 mm) and the connections are the same G1" male thread; adapters or changes to the pipework are not needed. You only swap the exchanger itself and the installation can go straight back into operation. As a brazed plate heat exchanger, the PBU11 is built from plates of AISI 316L stainless steel, copper brazed. The series is available from 10 to 100 plates — enough to replace every GBS400H version with a unit of the same plate count. A GEA WTT GBS 400H-80, for example, matches the PBU11-80; the table above shows all type numbers. Most versions are in stock in our warehouse in Oosterhout (the Netherlands) and are delivered quickly. Matching insulation, such as cold insulation against condensation or a thermal insulation jacket, can be ordered along with it. Request a no-obligation quote — you will have a quotation within one working day — or call +31 (0)162 429 068.

Frequently asked questions about replacing the GEA WTT GBS400H

Will the UNEX PBU11 fit my GEA WTT GBS400H without modifications?

Yes. The replacement has the same port-to-port dimensions (281 × 72 mm) and the same connections (G1" external thread), so the existing pipework does not need to be modified.

Is the replacement for the GEA WTT GBS400H available from stock?

13 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 10 to 100 plates, in 14 versions. Choose the version with the same plate count as your current GEA WTT GBS400H.

What does it cost to replace a GEA WTT GBS400H?

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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