Temperature probe (pair) direct installation (DS)

The installation of temperature probes in pipelines (qp ≤ 6) must be carried out directly in new installations in Germany. The direct installation of temperature probes must be carried out in accordance with DIN EN 1434-2 and the technical guideline TR-K8 (see following figure).

Thread size A 
G ½ B 
G ¾ B 
G 1 B 
G 1¼ B
G 1½ B

Thread size B
18,5 mm
24,0 mm
30,5 mm
39,0 mm
45,0 mm

• The following drawing schematically1434 shows the probe installation according to DIN EN. Proceed as follows when installing the probe:
• In case of replacement, the old temperature probe and the old seal must first be removed from the installation  location without leaving any residue.
•  Seals and sealing surfaces must be clean and free of damage.
• Strip the new seal from the probe and insert it into the installation point.
• Push the process thread of the temperature probe with open locking screw (optional) onto the temperature probe sleeve as far as it will go.
• Screw in the process connection as far as it will go (tightening torque: Nm4) and tighten the locking screw (optional) (tightening torque: cNm4).
• At the end of each installation, a leak test must be carried out
• The probe must be sealed according to DIN EN 1434, use existing sealing points.