Bauer is from Brazil and has purchased hydraulic cartridge valves from AAK 6 times. In the second half of last year, they developed a drilling equipment. The hydraulic pressure control cartridge valve used on the equipment was sampled from a local hydraulic cartridge valve manufacturer in Brazil. The equipment commissioning was not smooth, and the impact of the drilling rig during startup and shutdown is large, which is not acceptable to the customer. The root cause is the unstable unloading of the hydraulic pressure control cartridge valve after overloading. The original hydraulic pressure control cartridge valve manufacturer stated that it was manufactured according to the drawings and its accuracy reached the standard. Bauer was helpless.
Bauer contacted me and emailed me asking if AAK can produce a hydraulic pressure control cartridge valve with stable unloading after overloading, especially during equipment startup and shutdown. After communication, I learned the dilemma that Bauer encountered with the original hydraulic cartridge valve manufacturer. After discussion, AAK engineers gave the solution to the hydraulic pressure control cartridge valve, and Bauer asked AAK to make samples. After 45 days, AAK sent 10 hydraulic pressure control cartridge valves.
1 month later, Bauer informed us by email that AAK hydraulic pressure control cartridge valve was installed on the drilling rig, with minimal impact during startup and shutdown. Their equipment prototype had been delivered to the customer, and he was confident that the customer would place a batch order. AAK hydraulic pressure control cartridge valve not only achieves stable unloading after overloading, but also reduces impact. These are 2 advantages compared with the Brazilian hydraulic cartridge valve manufacturer. AAK hydraulic pressure control cartridge valve can adjust the annular orifice, the first and second orifices to achieve buffering and smooth operation of the equipment under various working conditions. AAK optimized the hydraulic pressure control cartridge valve in the following ways:
1. The hydraulic pressure control cartridge valve sleeve is provided with an oil return port and an oil discharge port, and a valve seat with a through hole is fixed. The valve spool is covered with a spring, and there is an oil passage inside the valve spool. The lower end of the valve spool is a tapered end.
2. The upper end of the valve spool extends into the valve spool sleeve, which is housed in the adjusting seat with a screw plug inside and a lock nut outside. Threaded connections are used between the lock nut and the adjusting seat, between the adjusting seat and the valve sleeve, and between the screw plug and the adjusting seat.
3. The screw plug cooperates with the valve spool sleeve to form a second oil chamber. The valve spool sleeve has two throttle holes and an annular throttle hole. The valve spool cooperates with the valve spool sleeve to form a first oil chamber. The lower end of the valve spool has an outer circumferential surface and a column that matches the inner wall of the valve sleeve.
AAK hydraulic pressure control cartridge valve has 2 advantages over Brazilian hydraulic cartridge valve manufacturer. You can also give it a try!
AAK HYDRAULIC CARTRIDGE VALVES (533) 2023-03-17
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