Nextteq Standard Airtec Regulator Kit - Manual (Page 18)

PACKING LIST SECTION II: Airtec Kit Components
18 NEXTTEQ LLC (Rev. 2) 4/09
3.1 INTRODUCTION
The Airtec kit is equipped with a CGA 346 fitting for breathing air bottles. This fitting is
specified by the compressed Gas Association to be used only for breathing air bottles.
The Airtec Kit may also be used for filtration and carbon monoxide removal devices, by
providing a quick disconnect near the respirator hookup. See Figure 3 (page 15). Refer to
section 3.3 (page 20) for details on monitoring compressor-supplied systems.
3.2 BOTTLED BREATHING AIR
The following test procedure should be followed when testing bottled breathing air.
1) Open the bottle valve momentarily to blow away any foreign material that may
have accumulated inside the connection.
2) Connect the regulator to the breathing air bottle and tighten it with an appropriate
wrench. (The fitting takes a 1-1/8” open-end wrench). The flow meter should be
mounted vertically for maximum accuracy. Close the adjustment knob by turning
it fully clockwise (do not over tighten), then open it 2 turns counterclockwise.
Warning
Do not over tighten the regulator fitting. Severe over tightening will cause distortion of
the threads and/or seating surface.
3) Open the bottle valve completely and read the gauge pressure on the regulator.
The pressure should be no less than 150 psig and no more than 3000 psig.
4) Adjust the flow meter needle valve momentarily to assure the flow meter ball
move freely throughout the entire length of the tube. Shut off flow meter valve
(turn it counter-clockwise to open and clockwise to close).
Warning
Do not over tighten the flow meter needle valve. Over tightening will damage the fine
internal threads and sensitive metering seat! The needle valve NEVER needs to be closed
tightly.
SECTION III: Testing Procedure