400 / 500 cc Bottle pressure regulator

Huma-Air External Tuning Regulator For Bottled Version Rifles.

 
This External PCP Regulator build by Huma-Air is specialy designed for several air rifles with a pressure bottle at front of the rifle with M18x1,5 threads like the Brocock Bantam, Daystate,, Hatsan Bullmaster.

The regulator will reduce the outgoing pressure of your rifle's pressure bottle according to your settings and this will result in a constant pelletspeed and better groups.
It is equipped with a pressure gauge what will indicate the fill pressure of the bottle and a foster male connection to fill the rifle. The position of the gauge and and foster can be chosen left or right and they can be aligned stepless into their position so it always looks good on your rifle.

When the regulator is fitted to the rifle you can read the regulator output pressure on your rifles's pressure gauge and the fill pressure will be shown on the regulator gauge.
Pressure can be set by turning the set-screw of the regulator what can be found inside the male treaded part of the regulator. A 5 minutes turn contra clockwise equals to about 6-7 bar pressure increase.
This bottle regulator will be screwed in between the pressure bottle and the action of the rifle. It will ad about 58 mm of lenght. Please note, the male treaded part of you action, what will screw into the regulator can have a maximum length of 28 mm.
(your original rifle's fill connection is replaced by the regulators quick connect foster male fill connection. Do not use the original rifle bottle fill connection anymore)

 

The benefits of this Huma-Air tuning regulator for your rifle

• Higher accuracy due to the elimination of the pelletspeed fluctuations
• The solid stainless steel foster fill connection and pressure gauge can switched over from left to right
• The position of the foster and pressure gauge can be turned around for 360 degrees. So you aligned it to your own wishes.
• Under the pressure gauge there is a o-ring what make it posible to line the dialplate up straight for the eye. 
• It will give you a constant pellet speed over the full working pressure range.
• It will give you a better shotcount and a full flat shotstring immediately.
• Adding a regulator to your airrifle will probably give you the biggest benefit in the tuning process.
• Often the rifle will make less noise due to better balance in air usage.

Pressure settings of the Huma-Air bottle regulator
 

Your bottle regulator comes preset on the pressure we have tesed it and it is marked on the packing. You can set the regulator according to your wishes within the pressure range. The output pressure will be shown on the factory pressure gauge of your airrifle.

Our advice for choosing the best pressure range for your Huma-Air regulator:

• Medium pressure range:  70-150 bar for all sub 12 ftlbs rifles from 1.77, .22 and .25
• High pressure range:       100-170 bar for FAC models in real high power .25

Important safety notes:

These regulators are not suitable for stand alone pressure bottles/buddy bottles.
The maximum working pressure of this model is 250 Bar.
Do not exceed the factory adviced fill pressure of your rifle.
Do not exchange the original factory bottle for a higher pressure bottle version.
These regulators are not suitable for a CO2 to HPA conversion, because they do not have a safety burst disk.
This regulator cannot be used as a replacement regulator for factory regulators equipped with a safety burst disk (like paintball regs or RTI priest regulator) as the Huma-Air model does not have a burst disk. When the regulator would malfunction, the full fill pressure of the bottle will be inside the action of the rifle what could be potential very dangerous)

Power setting of your rifle:

Please note, your rifles output power depends of the available air volume behind the regulator. You need about 12 cc for .22 and 16 cc in .25 for high power rifles. If you are not sure, measure the air channels in the action and we can help you calculate it. We will ad rifles to the list below when we have received information.

• Hatsan Nova, Airmax, Barriage, Hercules Bully are not suitable for this regulator 

Huma-Air Quality Control
 

Huma-Air regulators are CNC produced out of high grade aircraft Aluminum and bronze.
To guarantee a perfect product, every regulator is manually assembled, tested and adjusted to the requested pressure. 
We only use high-end materials and our belleville springs are designed for critical applications to achieve the highest repeat accuracy. This gives our regulators a repeat cycle less than 1% difference.