Our old Greek customer, Evander, emailed me in November last year that he sent me a sample of hydraulic cartridge relief valve, and stressing that it was not his, but one of his partners, Ptolemy, and also attached Ptolemy's contact information. After receiving the sample and communicating with Ptolemy, we learned that the hydraulic cartridge relief valve was produced by a local cartridge valve manufacturer in Greek and installed in their hydraulic cylinder, which was unstable. Their engineers said that the root cause was the high back pressure of the hydraulic system and the insensitive opening of the hydraulic cartridge valve.
We can't determine the hidden dangers of the hydraulic cartridge valve just according to the original sample. I suggested Evander sending us the video of abnormal hydraulic cylinder, the drawing of hydraulic cartridge valve, and the schematic of the system. After discussing, AAK engineers advised that the problem can only be solved by reducing the opening back pressure resistance of the hydraulic cartridge valve. Perhaps because of Evander's endorsement, Ptolemy paid the development fee on the second day. I have always believed that for industrial products such as hydraulic cartridge valves, it is difficult to get the order without trust. With trust and reliable manufacturing quality, it is easy to get the order. After 40 days, AAK sent 20 samples of hydraulic cartridge valve.
Yesterday, Ptolemy emailed me that AAK hydraulic cartridge relief valve was used on the hydraulic cylinder. The prototype operated stably and the hydraulic cartridge valve opened sensitively. AAK hydraulic cartridge valve is stable and sensitive under high back pressure. We optimized the structure of the original hydraulic cartridge relief valve from 3 aspects.
1. The valve sleeve of the hydraulic cartridge relief valve has an oil inlet cavity, and the outer circle of the valve sleeve is provided with a plurality of annular through holes as oil outlet, and oblique holes are set to control the oil outlet.
2. The middle part of the main valve spool is provided with a small hole connecting the oil inlet cavity and the inclined hole, and the main valve spool can slide in the valve body to form a spring cavity that is relatively closed to the oil inlet cavity, and the spring cavity is equipped with a pressure regulating spring.
3. The left end of the valve body is installed with an adjustable rod that can be rotated and retracted and has a lock nut. The pressure regulating spring on the adjusting rod is connected to the main valve spool. The outer diameter of the right end of the valve body is provided with a sealing groove to place the sealing ring group. Two sealing grooves are set on the left side of the external thread of the valve body, and the sealing ring group is placed to seal the connection with the socket to prevent oil leakage.
The optimized AAK hydraulic cartridge relief valve equalizes the pressure difference
safety relief valve DN 20 valve body bronze valve seat and spring brass operating temperature -200 ------+250
Bronze Relief Valve Rating : Max. Working Pressure 10.34 Bar Water or Air Material : Bronze Description : Right Angle, Enclosed Discharge Ends : Inlet Screwed Male to BS:21, Outlet Screwed Female to BS:21 Specials : Suitable for Water, Air Item Code : BM000016 Size : 15mm Notes : Available Valve Size : 15mm to 80mm
Bronze Relief Valve Rating : Max. Working Pressure 10.34 Bar Water or Air Material : Bronze Description : Straight Type, Open Discharge Ends : Screwed Male to BS:21 Specials : Suitable for Water, Air Item Code : BM000014 Size : 15mm Notes : Available Valve Size : 15mm to 80mm
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Adopting unique production technology, Focus- 6300 buytl tapes are mainly made of butyl rubber supplemented by other auxiliaries and fillers, with the superior high polymer materials. With its strong adhesion property and air-tight property, our waterproof sealing butyl tapes are environmental and solvent-free. Main Specification (Customized demand sare acceptable.) 6mm*8m 8mm*6m 10mm*4.57m Main Color - black Technical Data Product Series FOCUS-6300 Series Application Automotive Industry Elongation 500% Heat Resistance 90, no flowing within 2h Low Temperature Flexibility 40, no crack on surface within 24h Peel Strength 23N/cm Tensile Strength 230KPa Anti UV non-hardening and no cracks within in 2000h Corrosivity Non-corrosive to galvanized sheet, aluminum sheet and coppersheet. Advantages Strong adhesion, high tensile strength, excellent elasticity and extensibility. It can fully accommodate to the surface that it attached to Excellent performance in non-corrosive, weather resistance and adaptation. Applications Provide waterproof protection to car doors waterproof membrane. Provide waterproof and sealing protection to the battery of new energy automobile. Other waterproof applications on cars and new energy cars
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Brass Pressure Reducing Valve Pressure Rating : PN-25 Material : Forged Brass Description : Spring Loaded, Piston Type Ends : Screwed Female to BS:21 Item Code : FLB00123 Size : 15mm Notes : Available Valve Size : 15mm to 25mm
Description: To ensure safety, the drilling pump is equipped with safety valve in the outlet, which is able to control the ultimate pressure of the pump within the admitted scope. The high pressure safety valve is forged by high quality structural alloy steel. As a kind of protection device and human safety device, it is generally installed on cementing devices, fracturing pump, high pressure operation piping, pressure vessel and devices under high pressure and high flow capacity. It controls elastic force of the valve seat by adjusting the nut on the top. Once the pumping pressure or piping pressure exceeds pre-established pressure value, safety valve opens automatically to release the pressure. When the pressure value reaches the normal value, valve rod will recover the position by spring and close the valve.
To ensure safety, the drilling pump is equipped with safety valve in the outlet, which is able to control the ultimate pressure of the pump within the admitted scope. The high pressure safety valve is forged by high quality structural alloy steel. As a kind of protection device and human safety device, it is generally installed on cementing devices, fracturing pump, high pressure operation piping, pressure vessel and devices under high pressure and high flow capacity. It controls elastic force of the valve seat by adjusting the nut on the top. Once the pumping pressure or piping pressure exceeds pre-established pressure value, safety valve opens automatically to release the pressure. When the pressure value reaches the normal value, valve rod will recover the position by spring and close the valve.
