Under - 55 ℃ extremely cold working condition, the service life of AAK hydraulic
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Under - 55 ℃ extremely cold working condition, the service life of AAK hydraulic
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Vasiliev is a purchaser from an oil field production company in Russia. Although he has not been in office for a long time, his purchasing is very smooth. Early last year, he purchased a batch of hydraulic relief valves for the hydraulic system of drilling rigs for oil exploration in Alaska. The testing on the hydraulic relief valve sample from the original supplier was smooth, but the drilling machine was unable to start after working for about 3 months. It was judged on site that the hydraulic relief valve in the equipment was leaking. After further disassembling the hydraulic relief valve, it was found that the O-ring in the hydraulic relief valve was worn and broken.
Vasiliev contacted the original hydraulic valve manufacturer. The manufacturer replied that the standard nitrile rubber (NBR) O-ring used for this hydraulic relief valve has a service life of at least more than 1 year. He asked Vasiliev to check the temperature of the working environment. When he learned that it was extremely cold at - 50 ℃, the manufacturer said that the sealing ring of the hydraulic relief valve can only be replaced once every 3 months, and there is no other alternative sealing ring. Vasiliev was helpless and had to replace the sealing ring of the hydraulic relief valve to maintain the start-up. Two months after the new O-ring was installed, the hydraulic relief valve leaked again. The engineer complained that the hydraulic relief valve purchased by Vasiliev was too unreliable.
Vasiliev has to find new suppliers. He contacted with more than 30 hydraulic valve manufacturers, including we AAK hydraulic valve. Nearly all manufacturers replied that under the extremely cold condition of - 50 ℃, it is normal for sealing ring to have a service life of only 2-3 months. Only a few hydraulic valve manufacturers are willing to test new materials, but the lead time is to be determined. After receiving the email, AAK just asked about the quantity and delivery date, and told Vasiliev that our product quality can be guaranteed for 1 year under the extremely cold condition of - 50 ℃.
Vasiliev may have realized the AAK hydraulic valve is some different, and asked about 4 why and 3 how in a short email. We replied that there is no need to make sample for this hydraulic relief valve, because we produced a hydraulic relief valve for a North American customer that was used under similar working conditions the year before last. It has been used for more than 1 year and there was no complaint about the leakage of the hydraulic relief valve. Vasiliev was still rather in doubt about this, but he had no other choice except to try AAK hydraulic relief valve, because other hydraulic valve manufacturers either gave up or can not determine the lead time. After 30 days, AAK delivered the hydraulic relief valve as scheduled. After the test was normal, the original hydraulic relief valve was replaced.
6 months later, we asked Vasiliev whether the customer complained about the abnormal hydraulic relief valve. Vasiliev said that AAK hydraulic relief valve was in normal use. His boss was surprised that AAK had done something that more than 30 other hydraulic valve manufacturers could not do.
Vasiliev contacted the original hydraulic valve manufacturer. The manufacturer replied that the standard nitrile rubber (NBR) O-ring used for this hydraulic relief valve has a service life of at least more than 1 year. He asked Vasiliev to check the temperature of the working environment. When he learned that it was extremely cold at - 50 ℃, the manufacturer said that the sealing ring of the hydraulic relief valve can only be replaced once every 3 months, and there is no other alternative sealing ring. Vasiliev was helpless and had to replace the sealing ring of the hydraulic relief valve to maintain the start-up. Two months after the new O-ring was installed, the hydraulic relief valve leaked again. The engineer complained that the hydraulic relief valve purchased by Vasiliev was too unreliable.
Vasiliev has to find new suppliers. He contacted with more than 30 hydraulic valve manufacturers, including we AAK hydraulic valve. Nearly all manufacturers replied that under the extremely cold condition of - 50 ℃, it is normal for sealing ring to have a service life of only 2-3 months. Only a few hydraulic valve manufacturers are willing to test new materials, but the lead time is to be determined. After receiving the email, AAK just asked about the quantity and delivery date, and told Vasiliev that our product quality can be guaranteed for 1 year under the extremely cold condition of - 50 ℃.
Vasiliev may have realized the AAK hydraulic valve is some different, and asked about 4 why and 3 how in a short email. We replied that there is no need to make sample for this hydraulic relief valve, because we produced a hydraulic relief valve for a North American customer that was used under similar working conditions the year before last. It has been used for more than 1 year and there was no complaint about the leakage of the hydraulic relief valve. Vasiliev was still rather in doubt about this, but he had no other choice except to try AAK hydraulic relief valve, because other hydraulic valve manufacturers either gave up or can not determine the lead time. After 30 days, AAK delivered the hydraulic relief valve as scheduled. After the test was normal, the original hydraulic relief valve was replaced.
6 months later, we asked Vasiliev whether the customer complained about the abnormal hydraulic relief valve. Vasiliev said that AAK hydraulic relief valve was in normal use. His boss was surprised that AAK had done something that more than 30 other hydraulic valve manufacturers could not do.
Aak hydraulic valve
Hydraulic Relief Valve
ID producto: 12108261
| Referencia: AAK147
| Vendido por:
AAK INDUSTRY CO., LTD
Fecha de alta del producto 16/03/2022
-
Modificado por el vendedor 16/03/2022
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