Kozyvacu R134a Refrigerant Self-Piercing Can Tap Valve – Works well

The tap works but be aware that if you screw this tap on the refrigerant bottle too tight, nothing will come out. If this happens to you, just back it off the bottle until the refrigerant starts to flow.

Called your technicial dept and explained what problem i was having and informed the girl i lived in ca. She said maybe the tap was defective and would send a replacement. I went to my local napa auto parts store explained the problem i was having they told me i needed a special adaptor to use along with tapper,problem resolved. I believe you need to have more experianced people working in your technicial dept.

The valve is well made, seals well to the can and is easy to use. The only issue i had was as i used it the valve became harder to use because the rubber packing ring on the valve stem was dragging on the stem. I removed the valve stem and wiped it with a drop of two of compressor oil and it now turns very easy. Good product at a good price.

Was a little worried seeing all these reviews of the valve not working. It’s pretty simple, screw it down to close valve and pierce can, unscrew it out to release the r134a. Simple as that, works as advertised. I used this with my ac manifold gauge kit on the yellow line, when i had to open the red or blue side valves for whatever reason, never seen or heard any leakage from the yellow side, it held up well. With can on, works as advertised to feed blue line r134a.

The specs on the site described it exactly. This was what i needed to upgrade my old r12 set to function with the r134 coupler upgrade i purchased so now i can add freon r134 with my old r12 gage set. Works fine and screws on the standard r134 can. It was shipped fast and on time. Well made and sealed in blister pack so the gasket stays with it until you get it.

Seems the industry has been playing games with hose sizes the last 10-15 years, as i needed what they all call 1/2′ and not the 1/4′ they shipped me which it seems is what everyone calls the smaller of the two, when in fact is closer 7/16′ or 3/8′. The older yellow charging hoses use the 1/2′ male output nipple. The newer hoses seem to using the smaller nipple they call 1/4′ but in reality my tape shows it to be about 7/16′ just a hair bigger than 3/8′ measuring the thread od of both. I will keep this one as it is well built and brass, and i think they make adapters for it, and the day may come where i buy a new yellow hose, and they may not be making the 1/2′ charging yellow hose by then. Sure wish amazon sellers would take the time to learn about the specs of what they are selling and put all the actual data up and some vague 1/4′ number out there. This one is physically about 1/16′ too small for the older yellow charging hoses.

  • Doesnt work? Your doing it wrong!
  • This works for my purpose
  • Not the size I needed

Had to buy this twice because i snapped it off the first time. Only tightened finger tight (and i’m not that strong). Gentle touch to connect and it worked fine.

I love the overall design of this item since i only needed 80% of the 16 oz can. This has safety built into it and i can keep the remaining contents of the can without releasing the refrigerant into the atmosphere. I believe this is the reason why certain users noted refrigerant doesn’t flow into the hose the moment the can is punctured because the handle was not turned counter-clockwise to let the refrigerant out of the can. This simply means the valve is effectively closed.

For those that wote a poor review, i understand. My first try i had difficulty getting refrigerant to flow. But after a few tries i learned the valve on can of refrigerant has a ‘sweet spot’ that allows refrigerant to flow. Once you’ve pierced the can, you back the needle off until you can hear/feel the can release. A sight glass on the refrigerant manifold is helpful, because you can see liquid refrigerant flowing through the guage. If your having trouble, don’t let your ignorance ruin this sellers reputation.

Just a comment some gauge hoses still use the r-12 fitting size so pay attention to your gauges otherwise you will need a 1/4′ female flare to the 1/2′ for the old style hose. Some of the new gauges still come with the r-12 style connectors.

It was exactly what i needed at a great price. Didn’t advertise this, but the valve i recieved was a name brand (a/c pro) whose products i have used before with great satisfaction. Well built with solid construction, threads fit and seated properly for a good tight seal. Point on valve easily pierced the seal on the can. Shipping was very fast (received it a day and a half after ordering- a day earlier than expected). Satisfied with this product and this retailer.

Features of Kozyvacu R134a Refrigerant Self-Piercing Can Tap Valve with 1/4 Flare port for AUTO AC recharging, Easily connecting with Quick Coupler

  • Make sure this fits
    by entering your model number.
  • “T” handle for easy fingertip control
  • Easy to open R134a can with valve to turn off/on
  • Suitable for R134A. 1/4″ SAE Male only fits 1/4″ SAE Female yellow hose
  • Made of heavy duty brass to last under extreme conditions
  • 1/2 inch x 16 for fitting R134a Can

Make sure this fits
by entering your model number.

I ordered the whole vacuum and gauge kit from another vendor, but it didn’t have the item i purchased from you, go figure the one piece most needed and it’s not present. So i will finish what i started last saturday, on this saturday coming.

It could or be easier to use. It was exactly as advertised. It did the job the no trouble at all. Thanks for making this quality product so affordable.

“T” handle for easy fingertip control

Easy to open R134a can with valve to turn off/on

Suitable for R134A.

Made of heavy duty brass to last under extreme conditions

Summary
Review Date
Reviewed Item
Kozyvacu R134a Refrigerant Self-Piercing Can Tap Valve with 1/4 Flare port for AUTO AC recharging, Easily connecting with Quick Coupler
Rating
3 of 5 stars, based on 166 reviews