Valve Insert 200-BAR DIN to Yoke, Nitrox Ready
- Easily converts a DIN valve opening to Yoke
- Use on 200-Bar style (Pro DIN/K) valves only
- Has 8-mm hex opening and two O-rings
- Nitrox Ready - Chromed Brass Construction
Valve Insert 200-BAR DIN to Yoke, Nitrox Ready
Use this insert to convert any 200-BAR DIN style SCUBA cylinder valve for use with any yoke style first stage regulator up to the DOT rated maximum SCUBA cylinder service pressure of 3442 psi. The DGX insert has an 8-mm hex opening and includes two oxygen compatible 112 O-Rings.
Does a yoke adapter insert exist for the 300 bar valve? No. An adapter insert does not exist, and even if it were made, we have never seen a yoke clamp long enough to fit over the 300 bar SCUBA valve. There is a yoke-to-din fill adapter device for 300 bar valves, but it is strictly for filling only.
| Brand | DGX |
|---|---|
| SKU | DX-702282 |
| Weight | 0.075000 |
Customer Reviews
Damaged 300 bar DIN valve outlets
We occasionally hear from a customer that a new 300 bar DIN fitting on an adapter, gauge, fill whip or even a regulator is not compatible with some or all of the existing 300 bar DIN valves on their cylinders. Unfortunately the problem is more likely to be that the 300 bar DIN valve outlets have received an impact on the edge of the opening and are warped very slightly out of round. This causes a brand new fitting, perfectly within specification, to not be able to screw all the way in to the bottom of the warped outlet on the valve and fail to completely seat the sealing O-ring. However, it is not unusual for an existing regulator fitting or existing shop fill whip fitting to be able to seat because their threads are worn.
You should replace the valve, but sometimes the outlet is only very slightly out of round and might be made usable by a process known as "chasing and cleaning" the threads. You will need something to chase the threads and unless you are a machinist you are not likely to have the proper tools† handy. We suggest using a HP DIN Sealing Plug and a wrench, or a Yoke Insert and a hex key. Use the tools to force the fitting to screw tightly all the way in to the bottom of the 300 bar DIN outlet then back the fitting out completely and blow out the opening; repeat several times until the fitting easily screws in to the valve.
The risk to chasing and cleaning the threads is you damage the makeshift tool instead of correcting the valve outlet. It really only works if the outlet is very slightly out of round, so subtle that the warp is not readily apparent to the naked eye. If the valve has a noticeable ding at the edge such that it is clearly out of round, trying to chase and clean the threads won't work and you will have to replace the valve.
†The DIN SCUBA valve outlet is British Standard Pipe Parallel "G" Series (BSPP) 5/8-inch DIA X 14 TPI with 55 degree pitch Whitworth thread form. Very few dive shops have the relatively expensive tapping tool needed to re-thread a DIN outlet; best practice says that valves with damaged threads should replaced because re-threading might remove too much material and weaken the connection.
