JINAN HOWOSTAR AUTO PARTS CO.,LTD
                                                                                                           
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AZ220325000007 Double H Valve

Price Negotiable
Price: Price to be negotiated in person
MOQ: 1pc
Delivery Time: 5-7days
Brand: HOWOSTAR
Product Description

AZ220325000007,Double H Valve

Product Function and Role

The Double H Valve​ is the core control valve for the pneumatic shift system in heavy-duty truck transmissions. Its primary function is to control the switching between high and low gear ranges . It receives the air pressure signal from the cab shift lever to actuate the shift cylinder inside the transmission, enabling the conversion of the range gear​ or splitter gear.
  • Controls Air Circuit: As a pneumatic shift actuator, it directs compressed air to either the high-range or low-range cylinder of the transmission.
  • Gear Shifting: By moving its valve spool, it changes the air passage to achieve precise switching between high and low gear ranges.

Primary Application

This part belongs to the transmission pneumatic cotrol system​ and is mainly used in SINOTRUK 12-speed or 16-speed manual transmissions. When the vehicle needs to climb slopes or start under heavy loads, the low gear range (high torque) is used. For high-speed driving on flat roads, the system switches to the high gear range (high speed). The Double H Valve is the key component that enables this action.

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Company JINAN HOWOSTAR AUTO PARTS CO.,LTD
Location No.8668 , ErhuanBei Road, Tianqiao District, Jinan City, Shandong Province, China
Contact Person Gao

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