Sphere Pressure Tester

HydroPneumatic	Sphere Pressure Tester
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Sphere pressure measurement tool

The sphere-pressure measurement tool is introduced by the Citroen maintenance book etc.
In general, it is only at a special factory etc. On the other hand, DIY user's guide also had the manufacture of the pressure measurement tool of making by oneself, and what had been thought envying it whenever seeing at the Car event etc.

The statical gas pressure measurement tool can be manufactured if there are a pressurizing device with the meter and the pressure release mechanism by which the sphere pressure can be measured. We made SPHERE PRESSURE MEASUREMENT TOOL with a second-hand "high pressure pump" and a "pressure regulator" of BX.

Layout of system

HP(high pressure pump)
6.35mm metal pipe
PR(pressure regulator)
4.5mm metal pipe
Union
Meter
Reserver tank
(Suction hose is a ordinaly vinyl hose )

Whole content of system

The base frame uses metal fittings of steel shelf. (length are 30cm, 15cm)
ISO-M8/90mm bolt were fixed on frame, and HP was installed.

Pressurizing route

The direction of pressurized LHM is shown as allows.
The pipe of J-character which located "flow distributor and PR" of BX used for the connection of HP and PR.

Route of return.

LHM returns to reserver tank when the bleeding screw is opened.

The 100ml paint-can was used for reserver tank, and the nipple sold as a construction material for the water scattering in the garden was used for the connection of the can and the tube.

The tube is sold as "Oil vinyl tube".

The cap of the resin which has screw to connect with the nippleis sold.
This cap was used for the connection of HP and the nipple.

The following obstacle is a connection of the hydraulicick pipe and the meter.

The union (standard of 1/4-3/8) for the air tool was used for this region.

Cut the 4.5mm metal pipe to moderate length and passed through the union, and flair the one end with the flare ring tool.

Solder is poured and fixed to the union surroundings of the pipe. At this time, the entire union was roasted with the burner , solder was touched, and melted.
Please note the burn earnestly.

The return route of LHM.

Released LHM goes back to reserver through the vinyl tube(allows).

Layout which unites and goes up.

How to use; Install Sphere on Pressure Regulator, and tighten the bleeding screw, then rotate the HP pulley using hand or some other tools like wrench.
(8mm bolt was installed into center hole of pully at this photo).

If the bleeding screw is opened, system can be decompressed, and detach the sphere.

Let's customize the measurement tool.
A military ammunition case is used for the container.
The photograph below is the one that Mr.oku@BXORG made it. It is considerably compact and shape good.

(C) K.Oku, K.Adachi, Y.Narabayashi