BHFA-Q32B-A proportional air-controlled directional valve
1. Unloading pressure: 25 MPa
2. Diameter: 32mm
3. Rated flow rate: 350L/min
4. Control air pressure: 0.6-1 MPa
5. Operating temperature: -20 to +80 ℃
Description
This proportional air-controlled directional valve is used in medium and large mining dump trucks, featuring lifting, mid-stop, and proportional slow lowering functions. The lowering speed can be adjusted at will. It is installed on the cylinder valve seat and has safety and explosion-proof features, reliable structural strength, sensitive directional control, and a long service life.
Note: The thread of the oil pipe connector and the overflow pressure can be customized according to customer requirements.



Technical Specifications
Parameter Item |
Parameter Value |
Unloading pressure |
25 MPa |
Diameter |
32 mm |
Rated flow rate |
350 L/min |
Control air pressure |
0.6-1 MPa |
Operating temperature |
-20 to +80 ℃ |
Working medium |
Hydraulic oil |
Filtration precision |
≤25 μm |
Surface treatment |
Except for the installation surface, the exterior is painted with gray paint |



Product Features
Suitable for controlling the front top multi-stage cylinder, using the return port T to connect the oil pipe directly back to the oil tank. Use compressed air to remotely control the lifting, lowering, and proportional slow lowering functions of the carriage. Equipped with a pilot-operated relief valve and a one-way oil inlet valve, allowing for system pressure setting.
Suitable for controlling front-mounted multi-stage cylinders, applicable to hydraulic systems of dump trucks, compatible with dual multi-stage cylinders or single rod piston cylinders, with built-in safety relief valves for lifting, lowering, and slow lowering, and adjustable system pressure. Control valves can be used to remotely control the pneumatic lever reversing valve.
About Us

Hebei Huachun Hydraulic Automobile Fittings Co., Ltd. is a professional manufacturer of hydraulic accessories for dump trucks, Since its establishment in 1996, it has been committed to the development and production of hydraulic accessories for dump truck, developed hydraulic valves, hydraulic oil tanks and other products.According to market demand, the designed special hydraulic valve meets the requirements of descent speed, self-unloading with canopy, self-unloading with hydraulic outriggers, mid-point self-unloading, rollover and displacement,we have also developed aluminum hydraulic oil tanks to meet the requirements for light weight.
The company has more than 60 kinds of special products and has obtained more than 40 national patents.The product is suitable for refitting heavy duty, medium duty and light duty dump truck,It has the advantages of safety, reliability, flexible operation, convenient installation and long service life.The products meet the special requirements of domestic working conditions,It has been designated as an accessory product by major domestic modification group.
In 2016, the company was recognized as a "National Intellectual Property Advantage Enterprise" by the State Intellectual Property Office,It has been rated as "High-tech Enterprise" in Hebei Province for three consecutive years. On September 18, 2016, it was rated as "China's Well-known Trademark" by the State Administration for Industry and Commerce Trademark. The company's quality management system complies with TS16949: 2016 automotive industry technical specifications. Since its certification in 2007, the quality system has been operating well.
The company always adheres to the quality policy of "quality first, customer first, pursuit of better, and striving for first-class", and abides by the quality tenet of "reliable quality, reasonable price, timely supply, and thoughtful service" to provide better products for the market. Create greater value for customers and create more wealth for society.

Main product categories of the company

FAQ
Q: Are you trading company or manufacturer ?
A: We are factory. We have cooperated with dozens of countries and regions. We have rich experience in foreign trade.
Q: Is customization supported?
A: Support customization, you want we have, welcome to consult.
Q:Can you make parts as customer's requirement or drawing?
A: Yes, we can OEM for you as your drawings. Our engineer also can give you professional support for technical suggestions.
Q: How to confirm the payment?
A: We accept payment by T/T, PayPal, the other payment ways also could be accepted, Please contact us before youpay by the otherways.
Q:What is your warranty policy?
A: All our products are warranted for one full year from date of delivery, we have a professional service team to provide you with perfect after-sales service.