heat exchanger replacement

The heat exchangers below are 1:1 replacements for the Danfoss XB59M

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 PB34M-30 — replacement for Danfoss XB59M-1-30

Danfoss XB59M-1-30 can be replaced by UNEX PB34M-30

UNEX PB34M-30

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-36 — replacement for Danfoss XB59M-1-36

Danfoss XB59M-1-36 can be replaced by UNEX PB34M-36

UNEX PB34M-36

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-40 — replacement for Danfoss XB59M-1-40

Danfoss XB59M-1-40 can be replaced by UNEX PB34M-40

UNEX PB34M-40

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-50 — replacement for Danfoss XB59M-1-50

Danfoss XB59M-1-50 can be replaced by UNEX PB34M-50

UNEX PB34M-50

In stock — fast delivery

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-60 — replacement for Danfoss XB59M-1-60

Danfoss XB59M-1-60 can be replaced by UNEX PB34M-60

UNEX PB34M-60

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-70 — replacement for Danfoss XB59M-1-70

Danfoss XB59M-1-70 can be replaced by UNEX PB34M-70

UNEX PB34M-70

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-80 — replacement for Danfoss XB59M-1-80

Danfoss XB59M-1-80 can be replaced by UNEX PB34M-80

UNEX PB34M-80

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-90 — replacement for Danfoss XB59M-1-90

Danfoss XB59M-1-90 can be replaced by UNEX PB34M-90

UNEX PB34M-90

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-100 — replacement for Danfoss XB59M-1-100

Danfoss XB59M-1-100 can be replaced by UNEX PB34M-100

UNEX PB34M-100

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-110 — replacement for Danfoss XB59M-1-110

Danfoss XB59M-1-110 can be replaced by UNEX PB34M-110

UNEX PB34M-110

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-120 — replacement for Danfoss XB59M-1-120

Danfoss XB59M-1-120 can be replaced by UNEX PB34M-120

UNEX PB34M-120

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-140 — replacement for Danfoss XB59M-1-140

Danfoss XB59M-1-140 can be replaced by UNEX PB34M-140

UNEX PB34M-140

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-160 — replacement for Danfoss XB59M-1-160

Danfoss XB59M-1-160 can be replaced by UNEX PB34M-160

UNEX PB34M-160

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-180 — replacement for Danfoss XB59M-1-180

Danfoss XB59M-1-180 can be replaced by UNEX PB34M-180

UNEX PB34M-180

Available on request

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

UNEX PB34M-200 — replacement for Danfoss XB59M-1-200

Danfoss XB59M-1-200 can be replaced by UNEX PB34M-200

UNEX PB34M-200

In stock — fast delivery

1:1: same port-to-port dimensions (519 × 92 mm) and connection G2" external thread

Replacing the Danfoss XB59M with the UNEX PB34

Replacing a Danfoss XB59M with the UNEX PB34 is a straight swap: port centres and connections are identical, so the existing pipes stay exactly where they are.

  • Port centres

    519 × 92 mm

  • Connections

    G2" external thread

  • Number of plates

    30 to 200 plates, 15 versions

  • Stock

    2 of 15 versions in stock

Read the number of plates from the nameplate of your Danfoss XB59M and choose the UNEX PB34 with the same number in the table above. That version has the same length and comparable capacity; more plates means more capacity but also a longer unit. The UNEX PB34 is copper-brazed with stainless steel plates.

Want to be certain you pick the right version? Send us the type number or a photo of the nameplate via the contact form. Our specialists check the dimensions and send a no-obligation quote within one working day, including insulation and mounting materials if required.

Frequently asked questions about replacing the Danfoss XB59M

Will the UNEX PB34 fit my Danfoss XB59M without modifications?

Yes. The replacement has the same port-to-port dimensions (519 × 92 mm) and the same connections (G2" external thread), so the existing pipework does not need to be modified.

Is the replacement for the Danfoss XB59M available from stock?

2 of the 15 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 200 plates, in 15 versions. Choose the version with the same plate count as your current Danfoss XB59M.

What does it cost to replace a Danfoss XB59M?

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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Contact form

Response within one working day

+31 (0)162 429 068

On working days from 8:30 to 17:00

sales@hexchange.eu

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.

Customer service

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