Description
- Straight Lock-On Air Chuck - Open-Flow
- Thumb lever locks onto valve-stem while inflating tire
- Open (No-Valve) Design
- 1/4" female NPT
- 3/4" hex
- Not threaded
- 150 PSI Rating
The Difference between Open & Closed Air Flow Chucks:
Open-Type Air Flow Chucks: The Open Air chucks employ a "check valve" which will not seal the opening of the chuck when pressurized; however, it will open the core on the tire valve creating an "open passage" between the chuck and tire. Therefore, an OPEN check air chuck should be used on an air-line gauge in order to function properly.
Closed-Type Air Flow Chucks: The Closed Type Air Chucks employ a "check valve" which seals the chuck, closing the air passage while it is not being used, and when used, it will "open" the core on the tire valve, allowing the pressure from the hose to be transferred to the tire. When a "live" air-line is used for "non-gauged" inflation of the tire, a CLOSED air chuck should be used.
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