heat exchanger replacement

The heat exchangers below are 1:1 replacements for the APV SPX TT34M

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 PB34M-30 — replacement for SPX TT34M-30-EE

APV SPX SPX TT34M-30-EE 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

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UNEX PB34M-36 — replacement for SPX TT34M-36-EE

APV SPX SPX TT34M-36-EE 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

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UNEX PB34M-40 — replacement for SPX TT34M-40-EE

APV SPX SPX TT34M-40-EE 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

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UNEX PB34M-50 — replacement for SPX TT34M-50-EE

APV SPX SPX TT34M-50-EE can be replaced by UNEX PB34M-50

UNEX PB34M-50

On order — expected around 12/10/2026

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

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UNEX PB34M-60 — replacement for SPX TT34M-60-EE

APV SPX SPX TT34M-60-EE 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

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UNEX PB34M-70 — replacement for SPX TT34M-70-EE

APV SPX SPX TT34M-70-EE 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

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UNEX PB34M-80 — replacement for SPX TT34M-80-EE

APV SPX SPX TT34M-80-EE 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

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UNEX PB34M-90 — replacement for SPX TT34M-90-EE

APV SPX SPX TT34M-90-EE 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

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UNEX PB34M-100 — replacement for SPX TT34M-100-EE

APV SPX SPX TT34M-100-EE 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

Request a quote View in webshop

If your SPX TT34M has reached the end of its service life, you can replace it 1:1 with the UNEX PB34. The port-to-port dimensions are identical (519 × 92 mm) and the PB34 has the same G2" male thread, so the new heat exchanger connects to the existing pipework without modifications. This keeps the downtime of your installation as short as possible. The PB34 is a brazed plate heat exchanger with AISI 316L stainless steel plates, copper brazed, and is available from 30 to 100 plates. Choose the version with the same number of plates as your current TT34M; the table above shows the correct replacement for each type number, for example the PB34M-40 for the SPX TT34M-40-EE. Some versions are in stock in Oosterhout (the Netherlands) and the others we deliver quickly on request. Undecided between versions, or would you like to see a price first? Call +31 (0)162 429 068 or request a no-obligation quote — you will receive a price proposal from us within one working day.

Frequently asked questions about replacing the APV SPX TT34M

Will the UNEX PB34 fit my APV SPX TT34M 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 APV SPX TT34M available from stock?

The versions are available on request; contact us for current lead times.

Which plate counts are available?

The replacements are available from 30 to 100 plates, in 9 versions. Choose the version with the same plate count as your current APV SPX TT34M.

What does it cost to replace a APV SPX TT34M?

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