Aak Hydraulic Pressure Control Valve Has Been Used At 450bar For More Than 1 Year - China

William is a purchaser of a hydraulic equipment company in the United States.

At the beginning of last year, a South American customer wanted to customize a drilling machine for geological exploration.

The South American customer promised to order this equipment for a long time if it has excellent performance and stability.

The boss asked the engineers to design and test samples.

According to the working conditions, the maximum pressure of the hydraulic system is 450bar or above, which has a very high requirement on the pressure resistance and stability of the hydraulic pilot operated pressure control valves.

When William received the task of purchasing this hydraulic pilot operated pressure control valve, he felt a big pressure, because the pressure resistance of normal hydraulic pilot operated pressure control valve is basically 250bar, and the maximum pressure resistance provided by previous hydraulic valve manufacturers was also only 380bar.

He asked all the valve manufacturers that he contacted before, they basically replied that according to this working condition, their pilot operated pressure control valve can only ensure a service life of 3 months, but the customer asked for a service life of 1 year.

William also contacted the local valve manufacturers in the United States.

They told him that he could not promise a service life of 1 year for this pilot operated pressure control valve.

They can only test the samples first, then to know the service life.

One of his other valve manufacturers in China introduced AAK to him.

He told William that AAK shipped a pilot operated pressure control valve for a working condition of maximum pressure 450bar before, but the service life required by that customer is 6 months.

After receiving the drawings of the pilot operated pressure control valve from William, AAK technical team found that the requirements of this pilot operated pressure control valve were higher than those of our last shipment.

The conventional No.

45 steel could not meet the requirements, so we had to find special steel.

Later, after 5 times of material selection and testing, 2 months later, AAK internal sample testing was successful by using a German steel with high wear resistance and high fatigue resistance.

After sending the samples of pilot operated pressure control valve, we have been waiting for news from William.

William said that no news from customer is the best news.

Last month, 1 year after AAK samples were sent, William emailed us that he would order 100 pilot operated pressure control valves at one time.

The quality standard is the same as that of the pilot operated pressure control valves sent last year.

Because the other valve manufacturers in China can only ensure the service life of 3 months, he did not request those manufacturers to make samples, but only asked a valve manufacturer in the United States and AAK valve to make samples for this pilot operated pressure control valve at the same time.

The test result from their customer is that the samples of pilot operated pressure control valves provided by the valve manufacturer in the United States needed to be treated after being used for 12 months, while the condition of AAK sample is still normal after 1 year.

Therefore, they choose AAK as the supplier for this pilot operated pressure control valve and think it is difficult to find a second one The core of this pilot operated pressure control valve is material and heat treatment.

AAK adopts 20CrNi2MoV high carburizing bearing steel imported from Germany, combined with carburizing pretreatment process, through secondary quenching + cryogenic treatment + low temperature tempering process, which is cooled to 650 ~ 700 ℃ and discharged after cooling to 450 ~ 500 ℃.

The micro hardness is 237 ~ 247 HV, and its wear resistance and contact fatigue performance are increased by more than 3 times.

AAK customized pilot operated pressure control valve, is suitable for high pressure working condition and durable, welcome to have a small try! AAK HYDRAULIC VALVE (143) 2022-01-29

Company Contact:

• Posted By: AAK Industry CO., LTD

• Phone: +8657483008115

• Address: Bona Business Building, No. 456 Taikang Middle Road,, Yinzhou, Ningbo, China, Ningbo , Zhejiang , China

• Email:

• Website: https://www.aakindustry.com/

• Business Description: Focused on the Development and Manufacturing of Hydraulic Valves since 2006, in Ningbo China
  
  Since its establishment 12 years ago, 6 first-line international brand importers have placed orders with AAK for 5 consecutive years, with a re-peat order rate of 62%.
  
  Exported to more than 20 countries, AAK Hydraulic Valves used on "AIRCRAFT" have been supplied to Russian customers.
  
  68%+ of the high precision hydraulic valves exported from Ningbo Port come from AAK hydraulic valves.