Loading Steyr Air Pistol’s Cylinder (LP10 & LP50)

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Loading Steyr Air Pistol’s Cylinder (LP10 & LP50)

Post by Mac2 on 2/13/2017, 11:38 am

Loading Steyr Air Pistol’s Cylinder (LP10 & LP50)

How does one move compressed air from 300 bar tank to pistol’s 200 bar cylinder?  Slowly, is part of the answer.

Facts: No issue with Scuba store filling 300 bar tank to Parts needed to charge St300 bar through the tank’s 300 bar DIN 477 (7 thread) female connector.  Tank was provided with hose ending in what is described as 1/8 inch BSPP female quick-disconnect fitting. [BSP is British Standard taper Pipe thread]

Pistol is provided with a brass adapter having what is probably a proprietary male end that is inserted into pistol’s cylinder and with a male 200 bar DIN 477 (5 thread) connector on the other end.  Some places, the DIN end is also described as being 232 bar.  The DIN end of the adapter is male with about 22 mm across threads.

An adapter with a 200 bar (5 thread) DIN female on one end and with a compatible 1/8 inch male BSPP quick-disconnect on the other end is desirable.  Such objects in stainless steel or brass seem unavailable - and in any case are not ever described well enough to be certain of compatibility.

Additionally, 1/8 inch quick-disconnects seem to exist in at least three flavors that may not be compatible with each other.  (BSP, NPT, Foster, and others)

LP50 seems desirable for Winter indoor bullseye practice in the North.  What specific parts are needed, and from whom are they available, so that pistol cylinders can be charged?  Other bullseye competitors must have solved this dilemma.

I am appalled at the lack of specificity I have found when high pressure connectors are described.    Thanks for any help that can be provided.    Mac

Mac2

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Re: Loading Steyr Air Pistol’s Cylinder (LP10 & LP50)

Post by robert84010 on 2/13/2017, 11:51 am

give Scott a call. he has been a Steyr dealer for many years.

http://pilkguns.com/

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Re: Loading Steyr Air Pistol’s Cylinder (LP10 & LP50)

Post by STEVE SAMELAK on 2/13/2017, 11:52 am

Would it make sense to have the dive shop fill to 200 bar to start with?
That is close to what we filled 80 cu ft tanks when I was diving.  3000 psi/204 bar.
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STEVE SAMELAK

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Re: Loading Steyr Air Pistol’s Cylinder (LP10 & LP50)

Post by Mac2 on 2/13/2017, 12:26 pm

The tank has a female 300 bar Din 477 (7 thread) connector (used by the shop for filling the tank).  The provided pistol's adapter ends in a male 200 bar Din 477 (five thread) connector, which (for safety reasons) does not fit into a female 300 bar Din 477 (seven thread) connector.

Other bullseye competitors who use air pistols (single shot) for practice use 200 bar tanks having 200 bar DIN 477 (five thread) connectors and directly attach pistol's cylinder to the tank's connector.  The result is that their pistols are not charged to 200 bar and trips for a tank refill are frequent. However, such a scheme is stone simple and as safe as it can be (except for the bending moment inherent in attaching a pistol's cylinder directly to the tank's connector).  The latter is why use of hose is desirable.

Thanks for the suggestion, but the fight-of-the-connectors continues.   Mac

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Re: Loading Steyr Air Pistol’s Cylinder (LP10 & LP50)

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