This is a safe and common practice. Note that if you have more than one burner, you can find both the male and female sections of the quick disconnect separately.
This is a good place to shop, or at least to find prices for comparison:
https://weldingsupply.com/cgi-bin/ei...NDEF::::PJ#J08
With regard to the previous post, Western Enterprises and Victor quick disconnects are designed for gas and oxygen use and meet CGA and OSHA standards. However, I cannot be more specific about the CGA standards because I just tried to find the applicable pamphlet and could not, and there is a charge for accessing their documents.
Note that torch-to-hose means that there is a female "B" fitting on the outlet (torch) side and a male "B" fitting on the inlet (hose) side. A hose-to-hose means that there are male "B" fittings on both inlet and outlet sides. A hose-to-regulator configuration has a male "B" fitting on the outlet (hose) side and a female"B" fitting on the inlet (regulator) side. It is easy to get a hose nipple to "B" fitting adapter (about $3) and they come in either male "B" fitting to hose or female "B" fitting to hose configurations.
Here is some technical information from the Western Enterprises catalog:
QUICK-CONNECTS FOR WELDING EQUIPMENT
Western’s Quick Connects provide fast, reliable and positive connections and quick disconnections for torches, hoses and regulators. All models are color-coded for gas service for added safety (oxygen/green, fuel gas/red, inert gas/blue). Oxy/fuel gas models include integral reverse flow Check Valves. Quick Connects fit all B-size welding and cutting equipment.
• Brass construction provides long service life–cycle tested over 10,000 operations indicating a service life of 10 to12 years of comparable use
• Non-interchangeable Oxygen and Fuel Gas connectors prevent accidental gas mixing
• Instant closure on reverse flow Check Valves with total shutoff at only 10 oz. of back pressure
FEATURES & SPECIFICATIONS:
• Exceed CGA flow specifications–1100 SCFH flow at 125 PSIG inlet pressure and 800 SCFH flow at 125 PSIG inlet pressure when 2 additional check valves are used in conjunction with the Quick Connects
• Spring loaded locking mechanism responds to fingertip action and achieves a gas-tight connection
• UL Listed
• For inert gas models, demand valve on supply side creates a positive seal when fitting is not connected
• Double seal socket connection on second seal provides added safety protection
• Installation and operating instructions included
• 200 psig maximum operating pressure