heat exchanger replacement

The heat exchangers below are 1:1 replacements for the GEA WTT WP4

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 PBU11-10 — replacement for GEA WTT WP 4-10

GEA WTT WP 4-10 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

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UNEX PBU11-14 — replacement for GEA WTT WP 4-14

GEA WTT WP 4-14 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

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UNEX PBU11-20 — replacement for GEA WTT WP 4-20

GEA WTT WP 4-20 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

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UNEX PBU11-24 — replacement for GEA WTT WP 4-24

GEA WTT WP 4-24 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

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UNEX PBU11-30 — replacement for GEA WTT WP 4-30

GEA WTT WP 4-30 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

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UNEX PBU11-34 — replacement for GEA WTT WP 4-34

GEA WTT WP 4-34 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

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UNEX PBU11-40 — replacement for GEA WTT WP 4-40

GEA WTT WP 4-40 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

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UNEX PBU11-44 — replacement for GEA WTT WP 4-44

GEA WTT WP 4-44 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

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UNEX PBU11-50 — replacement for GEA WTT WP 4-50

GEA WTT WP 4-50 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

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UNEX PBU11-60 — replacement for GEA WTT WP 4-60

GEA WTT WP 4-60 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

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UNEX PBU11-70 — replacement for GEA WTT WP 4-70

GEA WTT WP 4-70 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

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UNEX PBU11-80 — replacement for GEA WTT WP 4-80

GEA WTT WP 4-80 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

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UNEX PBU11-90 — replacement for GEA WTT WP 4-90

GEA WTT WP 4-90 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

Request a quote View in webshop

UNEX PBU11-100 — replacement for GEA WTT WP 4-100

GEA WTT WP 4-100 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

Request a quote View in webshop

The UNEX PBU11 is the 1:1 alternative to the GEA WTT WP4. The port-to-port dimensions are identical (281 × 72 mm) and the unit has the same G1" male thread connections, allowing the PBU11 to take the exact place of your WP4. The pipework does not need to be modified. Like other brazed plate heat exchangers, the PBU11 is widely used in heating, domestic hot water, cooling and heat pump systems. The unit is built from AISI 316L stainless steel plates, copper-brazed, and is available from 10 to 100 plates. Simply choose the version with the same number of plates as your current unit: a WP 4-60, for example, is replaced by the PBU11-60. Most versions are in stock at our warehouse in Oosterhout (the Netherlands) and can therefore reach your site quickly. Look up the type number of your WP4 in the table above and you will see straight away which version you need. Would you like to be certain you are choosing the right version, or would you prefer a price first? Call us on +31 (0)162 429 068 or request a no-obligation quotation online — you will have an answer within one working day.

Frequently asked questions about replacing the GEA WTT WP4

Will the UNEX PBU11 fit my GEA WTT WP4 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 WP4 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 WP4.

What does it cost to replace a GEA WTT WP4?

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