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   RSJ-90 flow meter is designed and manufactured with Japanese advanced technologies. It is four-pistoned construction, and it is designed for gasoline and diesel, kerosene or compound of them.High flow rate and precise accuracy are its main features.
Working Principle:Â Petroleum flows out of pump flows into flow meter, it causes a angular deviation to the flow meter transmission shaft, and the pulse generating gadget gives out pulse signal to indicate the volume of the liquid.
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| Technical Specifications | |
| Max Flow Rate | 90/min |
| Mini Flow Rate | 5L/min |
| Accuracy | <=0.2% |
| Working Pressure | 0.12MPa ~ 0.45MPa |
| Repeat Error | <=0.1% |
| Working Temperature | -40ºC~55ºC |
| Materials | Alloy Aluminum |
| Packing | 2PCS/Carton |
| H.S Code | 9026100000 |
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Bicycle brakes may be rim brakes, in which friction pads are compressed against the wheel rims; hub brakes, where the mechanism is contained within the wheel hub, or disc brakes, where pads act on a rotor attached to the hub. Most road bicycles use rim brakes, but some use disk brakes. Disc brakes are more common for mountain bikes, tandems and recumbent bicycles than on other types of bicycles, due to their increased power, coupled with an increased weight and complexity.
A front disc brake, mounted to the fork and hub
With hand-operated brakes, force is applied to brake levers mounted on the handlebars and transmitted via Bowden Cables or hydraulic lines to the friction pads, which apply pressure to the braking surface, causing friction which slows the bicycle down. A rear hub brake may be either hand-operated or pedal-actuated, as in the back pedal coaster brakes which were popular in North America until the 1960s.
Track bicycles do not have brakes, because all riders ride in the same direction around a track which does not necessitate sharp deceleration. Track riders are still able to slow down because all track bicycles are fixed-gear, meaning that there is no freewheel. Without a freewheel, coasting is impossible, so when the rear wheel is moving, the cranks are moving. To slow down, the rider applies resistance to the pedals, acting as a braking system which can be as effective as a conventional rear wheel brake, but not as effective as a front wheel brake.
Bicycle Disc Brakes, Bicycle V-Brake, Bicycle Brake Set, Bicycle Brake Disc
Hangzhou Datasports Equipment Co.,Ltd(Oembicycle) , https://www.oembicycle.com