Metering Valve Overall Assembly - Agilent Technologies G8610A Operation Manual

Agilent Technologies Helium Leak Detector
Figure 5-16 Metering Valve Overall Assembly
Figure 5-17 Metering Valve Assembly
Item A. (2X)
Item B. (2X)
Item C. (1X)
Assembly notes:
❑
Apply Teflon pipe tape onto threads of item B to ensure proper seal with minimal
leakage.
❑
When connecting item B. to item C., push in 1/4" pipe as far into nut as can be
allowed. Then snug nut to finger tight torque. Using a 9/16" wrench, turn nut 1 and
1/4 turns (360° + 90° = 450° total) for proper crush seal with the ferrule inside.
❑
This fine metering valve is the same type of valve as used in the Agilent sniffing
power probe. If desired, that valve may be taken out of the power probe and
reassembled in a similar technique to the one described here.
3. Connect the Power Probe to the mass flow meter.
4. Connect the mass flow meter RS232 serial port cable to the leak detector serial port
located in the back of the unit.
Description: NW25 to 1/4 NPT stainless steel male pipe adapter
Make: Agilent Technologies Inc. - Agilent part number:
KAMP250250S
Description: 1/4 NPT to 1/4" tubing adapter
Make: Swagelok - Swagelok part number: SS-4-TA-1-4
Description: 316 stainless steel very fine metering valve, 1/4"
swage, 0.004 max
Make: Swagelok - Swagelok part number: SS-SS4
95