Ball Valve; Measurement Fitting Including Ball Valve - TESTO 6448 Instruction Manual

Compressed air counter probe
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Tapping clamp
material
Nominal widths/
tolerance ranges
3.3.3.2.

Ball valve

The integrated ball valve enables the compressed air line to be
isolated from the measuring instrument.
Measurement fitting
material
Connections
3.3.3.3.

Measurement fitting including ball valve

The measurement fitting has a pipe clamp connection and a DN8
connection for a quick-release coupling. The integrated ball valve
enables the compressed air line to be isolated from the measuring
instrument.
The quick-release coupling is used to integrated an additional
measuring point (e.g. the Testo dewpoint transmitter)
Technical data for the measurement fitting
Measurement fitting
material
Connections
Stainless steel 304/A2, Perbunan (NBR) 70
Shore insert, stainless steel A2 nuts and
stainless steel screws.
Nominal width:
DN 40/50
DN 65
DN 80
DN 100
DN 125
DN 150
DN 200
DN 250
Brass, nickel-plated
DN15 internal thread for sensor
DN20 union nut for tapping clamp/welding
socket
Brass, nickel-plated
DN15 internal thread
DN8 connection for quick-release coupling
7.2 mm
3 Specifications
Tolerance range:
47 – 67 mm
73 – 80 mm
86 – 106 mm
107 – 127 mm
128 – 148 mm
149 – 171 mm
216 – 238 mm
260 – 280 mm
15

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