The heat exchangers below are 1:1 replacements for the GEA WTT DW4
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.
GEA WTT DW4-10 can be replaced by UNEX PBT11-10
UNEX PBT11-10
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-14 can be replaced by UNEX PBT11-14
UNEX PBT11-14
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-20 can be replaced by UNEX PBT11-20
UNEX PBT11-20
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-24 can be replaced by UNEX PBT11-24
UNEX PBT11-24
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-30 can be replaced by UNEX PBT11-30
UNEX PBT11-30
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-34 can be replaced by UNEX PBT11-34
UNEX PBT11-34
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-40 can be replaced by UNEX PBT11-40
UNEX PBT11-40
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-44 can be replaced by UNEX PBT11-44
UNEX PBT11-44
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-50 can be replaced by UNEX PBT11-50
UNEX PBT11-50
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-60 can be replaced by UNEX PBT11-60
UNEX PBT11-60
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-70 can be replaced by UNEX PBT11-70
UNEX PBT11-70
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-80 can be replaced by UNEX PBT11-80
UNEX PBT11-80
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-90 can be replaced by UNEX PBT11-90
UNEX PBT11-90
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
GEA WTT DW4-100 can be replaced by UNEX PBT11-100
UNEX PBT11-100
1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread
Replacing the GEA WTT DW4 with the UNEX PBT11
Replacing a GEA WTT DW4 with the UNEX PBT11 is a straight swap: port centres and connections are identical, so the existing pipes stay exactly where they are.
Port centres
281 × 73 mm
Connections
G1" external thread
Number of plates
10 to 100 plates, 14 versions
Stock
5 of 14 versions in stock
Read the number of plates from the nameplate of your GEA WTT DW4 and choose the UNEX PBT11 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 PBT11 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 GEA WTT DW4
Will the UNEX PBT11 fit my GEA WTT DW4 without modifications?
Yes. The replacement has the same port-to-port dimensions (281 × 73 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 DW4 available from stock?
5 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 DW4.
What does it cost to replace a GEA WTT DW4?
Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.
