SPEEDAIRE
SPEEDAIRE 30E689 Quick Connect Hose Coupling 3/8 in Body 3/8 in Hose
Quick-connect coupling with push/pull sleeve locks to industrial plugs, rated 300 psi at 70°F and 1,274.26 l/min flow
- Quick changes with push/pull sleeve locking
- Industrial interchange compatibility for existing fittings
- Zinc-plated steel resists corrosion in tough environments
- Nitrile seals handle -40°F to 150°F operating range
- 1,274.26 L/min flow at 300 psi working pressure
Quick connect coupling for 3/8 in air lines
The SPEEDAIRE 30E689 is a quick connect hose coupling built for compressed air or fluid systems using a 3/8 in body and hose size. It uses a manual push/pull sleeve to lock onto industrial interchange plugs at the end of a hose or supply line. The steel body carries a zinc-plated finish for corrosion resistance in workshop environments. A poppet valve with nitrile seals controls flow during connection and disconnection.
Rated for 300 psi working pressure at 70°F
The coupling handles a maximum working pressure of 300 psi at 70°F and a maximum flow rate of 1,274.26 liters per minute. Its male fitting uses a 3/8 in thread size of 3/8"-18 NPT to match standard air line connections. The poppet valve opens only when a compatible plug is fully seated, preventing unintended air loss. Operating temperature range spans -40°F to 150°F for use in cold or hot conditions.
Zinc-plated steel body with nitrile poppet seals
The zinc-plated steel construction resists rust from moisture in compressed air lines. Nitrile seals on the poppet valve withstand oil mist and common pneumatic lubricants without degrading. The sleeve-type locking mechanism engages with a simple push and releases with a pull, speeding up hose changes on the job. No additional tools or accessories are included with the coupling.
Highlights
- Quick changes with push/pull sleeve locking
- Industrial interchange compatibility for existing fittings
- Zinc-plated steel resists corrosion in tough environments
- Nitrile seals handle -40°F to 150°F operating range
- 1,274.26 L/min flow at 300 psi working pressure
Specifications
| Brand | SPEEDAIRE |
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Questions about this item
How much air can the 1,274.26 liters per minute rating actually deliver to my tools?
That figure is the rated maximum flow rate; the actual volume reaching your tools will depend on compressor output, hose length, and system pressure drop.
What does the 300 psi at 70°F working pressure limit mean for daily use?
It caps the coupling at 300 psi when the surrounding temperature is 70°F; pressure capacity decreases as temperature rises toward the 150°F upper limit.
Will the 3/8"-18 NPT male thread fit my existing hose or regulator?
Yes, if the mating port is a 3/8"-18 NPT female thread; the coupling uses standard NPT taper threads for a sealed connection.
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