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Topmodel.fr / ALL / Hardware / Jets hardware / Pneumatic circuit / Jet-Tronics BRAKE VALVE

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Product information

This worldwide, new electronic brake valve was especially developed to compensate the disadvantage of the PWM brake, namely the high pressure loss during part breaking

The new valve can be compared with known mechanical breaking valves, which however have the disadvantage of a high weight and they required space for the Valve as well as a servo.

The proportional operation is achieved by filling the brake with air pressure pulses. The number of pressure pulses and accordingly the braking force depends on the position of the controller on the transmitter.

Direction, range and the first break point can be learned in to the valve.

As the valve is deactivated after each pulse, the power requirement is minimal.

Prerequisites for proper function:
1. A separate air pressure tank or pressure reducer (Z075). Not implicitly necessary, however due to constant pressure recommended. With a separate tank, retractable landing gears or air brakes have no influence on the pressure needed for the brakes. In addition with no separate tank, the control range could be limited.

For example: The full force of the brake is already reached with 3 bar, but the retract needs 8 bar to work appropriately.

2. Equal braking efficiency of the main gear wheels at a given pressure.

3. Leak tightness of the brakes and tubing.

Recommendation: A pressure gauge (Z016) in the brake line to control leakage.

4. The total length of the tubes for both wheel brakes should be approximately 2 m and the tube should have 3 mm external diameter and 2 mm internal diameter. Excess length can be rolled up and stowed somewhere. The tube acts as a buffer and is important to ensure that the increase of pressure is linear to the lever position.

Please note:
This brake valve regulates linear up and down, however this does not mean that all the different purchasable breaking systems respond in a linear manner. The operation, even of same type brakes, can be pretty different.

O-ring brakes for example have a relatively high hysteresis with a small adjustment range and tubular brakes a high threshold till the break starts working. Most of the disc- und drum-brakes have a nearly linear work range.

Teach in the brake range on the transmitter:
1. Lever to: brake - off
2. Press green LED button (Right Button front view - see Figure)
3. Lever to: brake - maximum
4. Press red LED button (Left Button front view - see Figure)

Adjust the braking efficiency
1. Fill the pressure tank (in case of a separate tank) until the brake just blocks or maximum braking efficiency is reached while moving the lever from brake open to brake fully closed. The moving of the lever is necessary to get the brake pressurized.

Use the same procedure if pressure reducer is used.

2. Lever to brake - off

3. Move lever to the position where the wheel is just starting to brake.

4. Press button of red LED longer than 3 seconds (Left Button front view).
The braking efficiency should now equally been distributed over the whole control range.

Keep both buttons pressed during turn on.

Technical data:

  • Supply voltage: 3.5V..7.5V
  • Current consumption: Minimal, only during pressure changes max. 200mA
  • Pressure range: 0-10Bar
  • Measurements: 27x29x30mm (L/B/H)
  • Weight: 32gr
  • Connection: de 2,5 à 4mm outer diameter

Your price:
Constant Price 100.50 €
In Stock (2)
N°Cde: 097B01
Added to the site 2/10/2009
Manufacturer: Jet-Tronics
Please see our Trading conditions and Shipping cost for detailed information about delivery dates and fees.

Documentation + Video

Jet-Tronics BRAKE VALVE.pdf
PDF documentFile size: 1.4 MB


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