1. Prepare the necessary adapter to link the threaded socket to Hydrogen source (14). This adapter is
not provided due to the different connector standards of Hydrogen source cylinders worldwide.
Warning:the pressure gauge provided has amaximum pressure of 25MPa.It is assumed that the
Hydrogen source will be standard industrial steel cylinder with pressure of less than 20MPa and that filling
the carbon fiber cylinder will be by means of pressure cascade.If you are connecting directly to a gas
booster pump or higher source pressures, change the pressure gauge or bypass it completely.At any time,
do not operate higher than 35MPa.
2. Connect the refueling hose mating socket (13)to the refueling hose mating plug (9).
3. Open the refueling cap.Keep it in asafe place, do not lose it.Connect refueling port mating plug (10)
into the refueling port (7) of MGPR.Do not use excessive force at the end of the turns.
4. Turn on your Hydrogen source.
5. Slowly turn On the On/Off manual valve by turning it anti-clockwise.Hissing sound can be heard as gas
rushes in from the source into the carbon fiber cylinder. Continue turning the valve anti-clockwise until it is
fully opened (i.e. cannot be turned anymore).Do not use excessive force at the end of the turns.
6. The gas will now fill into the carbon fiber cylinder until it reaches equilibrium with the source.
7. If you are using agas booster pump, it can now be turned on.
8. At the end of the filling process, turn off your Hydrogen source.Close the On/Off manual valve by turning it
fully clockwise.Caution: at this point, there is still high pressure gas remaining in the refueling hose.Remove
your blocker at gas outlet port to release the remaining gas through the MGPR low pressure gas outlet
port.
9. Once all the gas is released, fully remove refueling port mating plug from the refueling port and put back the
refueling cap.
10. The carbon fiber cylinder is now ready for usage.
1. Visually check MGPR for obvious cracks or other physical damage.Warning:never use a faulty regulator.
2. Ensure that On/Off manual valve (2) is in the Off state (fully clockwise).Do not over-tighten.
3. Ensure that gas pressure transducer (5) is securely connected.If you do not wish to use the gas
pressure transducer, then ensure that the gas pressure transducer socket is sealed with the plug
provided.
4. Block the gas outlet port (6) either with the blocker provided or gas tubing and valve.
5. Connect MGPR to the carbon fiber cylinder by manually turning the threaded carbon fiber cylinder plug
(3) into its corresponding female socket at the cylinder neck.There is no need to apply excessive force at
the end of the turns.The carbon fiber cylinder is now ready for gas filling.Note:an ID17 CS3EPDM O-ring
(provided) may or may not be needed depending on your carbon fiber cylinder thread design.
3OPERATING PROCEDURES
3.2 FILLING THE CARBON FIBER CYLINDER
3.1 SETTING UP MGPR
CHAPTER 3 | OPERATING PROCEDURES
