S transmission is a series of new high-end products developed by Frances and Europe for international standards. The transmission adopts full helical gear, fine high tooth and drum tooth design. It is fully ground and processed with light weight, low noise and short axial dimension. It is light and easy to operate, suitable for all kinds of working conditions, strong climbing ability, good fuel economy, advanced technology, excellent performance, economical and environmental protection, and high cost performance. As the lowest comprehensive emission model, the National Sixth Car can further improve air quality and high-quality development of the automotive industry. The Fast S transmission has been fully adapted to the National Six high-end heavy-duty trucks, trucks and special models to provide users with a safe, comfortable, economical and reliable driving experience.
Swing
Check Valve:
The discs tightly cover the rubber with no
iron exposed. The media are pledged clear and pure. The rubber-coating layer of
the discs is added with durable nylon cord fabrics and soft mental cord
fabrics, which greatly improves the discs` capacities of enduring flexing and
stretch when unlocked or closed, meanwhile, prolongs service life.
When in the state of closeness, the discs
form a certain angle with the flowing direction.
The through-holes of the base and the discs
are all oval while the flowing channel is straight- through. Therefore, the
closed angle is relatively small, which decreases phenomena of the water
hammer, as a result, effectively secures the valve.
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Fast S transmission has successfully matched a number of OEMs 
Fast S transmission
In 2019, the first year of the marketization of the country's products, Fast began to grasp the rhythm of the replacement of the national five and the national six emission standards, and introduced the S series transmission that fits the high-end heavy truck. At present, the Fast S transmission has successfully matched a number of host manufacturers' national six models, becoming the mainstream leading the optimization configuration of high-end heavy trucks, providing the best solution for commercial vehicles to upgrade to the national six.