Comparison of corrosion resistance between various stainless steels of BURKERT solenoid valve
BURKERT solenoid valve is a variant of 304 stainless steel with lower carbon content, used in applications that require welding. The lower carbon content reduces the amount of carbides precipitated in the heat affected zone near the weld, which may lead to intergranular corrosion (welding erosion) of stainless steel in certain environments.
BURKERT solenoid valve is a nitrogen-containing stainless steel, and nitrogen is added to improve the strength of the steel.
BURKERT solenoid valve stainless steel contains a high amount of nickel and has a low work hardening rate, making it suitable for various applications that require high cold formability.
BURKERT solenoid valve stainless steel is used to make welding rods.
BURKERT solenoid valve stainless steel has a relatively high nickel and chromium content in order to improve its oxidation resistance and creep strength at high temperatures. 309S and 310S are variants of 309 and 310 stainless steel, with the only difference being lower carbon content, in order to minimize the precipitation of carbides near the weld seam. 330 stainless steel has particularly high resistance to carburizing and thermal shock
316 and 317 stainless steel contain aluminum, therefore their resistance to pitting corrosion in marine and chemical industrial environments is significantly higher than that of 304 stainless steel. Among them, the variants of 316 stainless steel include low-carbon stainless steel 316L, high-strength stainless steel 316N containing nitrogen, and easy cutting stainless steel 316F with high sulfur content.
321, 347, and 348 are stainless steels stabilized with titanium, niobium, tantalum, and niobium, respectively, suitable for use as welded components at high temperatures. 348 is a stainless steel suitable for the nuclear power industry, with certain limitations on the amount of tantalum and cobalt.
BURKERT solenoid valve stainless steel exhibits obvious work hardening phenomenon during deformation and is used in various applications that require high strength.
BURKERT solenoid valve stainless steel is essentially a variant of 304 stainless steel with higher carbon content, which can achieve higher strength through cold rolling.
BURKERT solenoid valve is a stainless steel with high silicon content, which has high resistance to high temperature oxidation.
BURKERT solenoid valve is a free cutting stainless steel containing sulfur and selenium respectively, used in applications that mainly require easy cutting and high surface gloss.
BURKERT solenoid valve stainless steel is also used to make parts that require hot forging, because under such conditions, this stainless steel has good hot workability.
BURKERT solenoid valve is a universal stainless steel widely used in the production of equipment and components that require good comprehensive performance (corrosion resistance and formability).
Damage often occurs, so pay attention to the following points to avoid similar situations from happening again. 1. Lightweight blocking plates should be installed on both sides of the pneumatic valve for secure sealing.
Small caliber pneumatic valves in BURKERT solenoid valves should be tied with grass ropes and transported in containers.
BURKERT solenoid valve large-diameter pneumatic valve also comes with a simple wooden frame solid packaging to prevent damage during transportation.
The import and export of BURKERT solenoid valve products have also increased, but due to the significant gap in technology compared to foreign manufacturers, product technology will become a bottleneck restricting the development of valve products in China in the near future. Pneumatic actuators are divided into two forms: positive action and negative action. Positive action refers to an increase in signal pressure, causing the push rod to move downwards; The form of reaction is an increase in signal pressure, causing the push rod to move upwards. The output displacement of this actuator is directly proportional to the input air pressure signal, and the greater the signal pressure, the greater the displacement of the push rod.
When the pressure and the reaction force of the spring are balanced, the push rod of the pneumatic valve stabilizes in a certain position, and there are two types of pneumatic actuators: angular stroke pneumatic actuators and linear stroke pneumatic actuators.
With the continuous development of intelligent pneumatic actuators, intelligent valve positioners have become their complementary products.
The BURKERT solenoid valve is equipped with a highly integrated microcontroller, which uses the principle of electric balance (digital balance) instead of the traditional force balance principle to convert electrical control commands into pneumatic positioning increments to achieve valve position control; Using digital on/off signals to drive the action of pneumatic actuators; The valve position feedback signal is directly transmitted through a height position sensor to achieve electrical/pneumatic conversion function. Intelligent valve positioners have the characteristics of improving output force and action speed, adjusting degree, overcoming valve stem friction, and achieving correct positioning. It is precisely because of the continuous intelligence of these supporting products that pneumatic actuators are becoming more intelligent