petak, 10.03.2017.
The Comparison of No Lining Diaphragm Valve and Electric Diaphragm Valve
No lining diaphragm valve
Unsealed Diaphragm Valve body is made of cast steel or stainless steel, PTFE or other rubber can be used as the diaphragm, close cooperation between the valve body and the diaphragm provided with the valve seal and valve seat seal, to ensure that the pipeline internal and external environment completely isolated .
Product description:
Non-liner diaphragm valves are designed to control non-corrosive or normally corrosive media, elastomeric seals, to ensure that there is no internal leakage.
Working principle:
The sanitary diaphragm valve is opened and closed by the stem up and down movement. When the stem is in the upper position, the spherical diaphragm is bent upward to form a conductive state. When the valve stem drove the valve core to bend the diaphragm from top to bottom movement, forced diaphragm tight seat area, or closed the pipeline fluid to the path.
Features:
1, the diaphragm can be replaced, low maintenance costs.
2, no stuffing, no leakage
3, streamlined flow channel made the pressure loss.
4, the elastic seal of the opening and closing parts, ensured no leakage.
5, the valve body and cover separated by the middle diaphragm, making the top of the diaphragm cover, stem and other parts from the media erosion.
Electric diaphragm valves
Electric diaphragm valve body is made of cast steel or stainless steel, PTFE or other rubber is the diaphragm, the valve body cooperated with the diaphragm closely, the valve seal and valve seat seal ensured that the pipeline internal and external environment completely isolated.
Product description:
Electric diaphragm valve regards 380V voltage as the signal to control the opening or closing the diaphragm, we can choose intelligent adjustment type Denso. Sanitary diaphragm valves are composed of electric actuators, with electric actuators to drive the diaphragm valve switch, so as to achieve the media in the pipeline cut off and connected. Valve lining the different plastic, can be resistant to varying degrees of corrosive media.
Working principle:
Electric diaphragm valve is opened and closed by electric actuators driven stem up and down movement to achieve. When the stem is in the upper position, the spherical diaphragm is bent upward to form a conductive state. When the valve stem from top to bottom movement to drive the valve core to bend the diaphragm, forced diaphragm tight seat area, or closed the pipeline fluid to the path.
Features:
1, the diaphragm can be replaced, low maintenance costs.
2, streamlined flow channel made the pressure loss.
3, the elastic seal of the opening and closing parts ensure that no leakage.
4, the fluid channel is straight, so fluid loss is smaller, less wear.
5, the valve body and cover separated by the middle diaphragm, making the top of the diaphragm cover, stem and other parts from the media erosion.
6, because the seal is a flexible rubber diaphragm, so it also has good sealing and minimum closing force.
7, pneumatic diaphragm valve body cavity surface has a variety of rubber.
Oznake: diaphragm valve
- 06:15 -
What are the Kinds of Sanitary Check Valves
Sanitary check valves
Sanitary Thread Check Valve
The internal structure of non-threaded check valve is no dead ends which can ensure that the media is without residue, easy to clean and so on. Sanitary check valves can be applied to food, beverages, wine, pharmaceuticals, cosmetics and chemical industry.
Sanitary Quick Check Valve
Sanitary fast check valve is made of stainless steel 304 and 316L, and processed with high-grade polishing equipment. The surface precision can meet the special requirements of various media in food and biopharmaceutical fields. The channel is also very suitable for steam to meet the needs of local cleaning.
Sanitary Flange Clamp Check Valve
Adamant valves adopt 304 or 316L stainless steel as the whole material, with high-grade polishing equipment, to meet the surface precision requirements. The production of sanitary check valve can meet the special requirements of food, bio-pharmaceutical fields.
Sanitary Butt Check Valve
The sanitary butt check valve is made of stainless steel (304,316L). Standard sanitary valves are equipped with EPDM or Frog rubber, fluorinated rubber.
Sanitary Thread Check Valve
Non-threaded check valve can be applied to food, beverages, wine, pharmaceuticals, cosmetics and chemical industry.
Sanitary Quick Check Valve
Sanitary fast check valve is made of 304 and 316L, and processed with high-grade polishing equipment both inside and outside. The surface precision can meet the special requirements of various media in food and biopharmaceutical fields.
Sanitary Flange Clamp Check Valve
Sanitary flange clamp check valves adopt 304 or 316L stainless steel as the whole material, to meet the surface precision requirements. The production of sanitary check valve can meet special requirements of various media in the food, bio-pharmaceutical fields.
Sanitary Butt Check Valve
The sanitary butt sanitary check valve is made of stainless steel (304,316L). Standard sanitary valves are equipped with EPDM or Frog rubber, fluorinated rubber.
Oznake: Sanitary check valves
- 04:53 -
What is Stainless Steel Ball Valve
Stainless steel ball valve
Stainless steel ball valve belongs to a kind of sanitary valves, according to the distinction and selection of the sphere, some ball system can be operated easily, the line for publicity can open and close conveniently.
Stainless steel ball valve is a major way to judge, cut and upgrade a change in the direction of some of the flow through the way to achieve different effects, the ball valve enhanced the selection, developed a new form of the valve and is widely used in recent years,, the advantages of sanitary ball valves are different.
Fluid resistance is small, the resistance coefficient is equal to the same length of the pipe segment.
The scope of application promoted through a variety of path, to enhance the pressure and the effectiveness which is widely used, can be applied from high vacuum to high pressure. This type of sanitary valve in the pipeline should generally be installed horizontally.
I will introduce a typical ball valve:
Flanged three-way ball valve
Flanged 3 way ball valve is a three-channel rotary ball valve, flange three-way valve spool with L-and T-type, to meet different production process requirements. Any pipe can be used as an inlet or an outlet, as required. L-type valve is the three pipes in the removal of two pipes, T-valve which can achieve the three connecting pipe confluence and diversion.
Oznake: Stainless steel ball valve
- 04:45 -
There are Two Common Butterfly Valves
There are two common butterfly valves
The butterfly plate of the butterfly valve is installed in the diametrical direction of the pipe. In the butterfly valve body cylindrical channel, disc-shaped butterfly plate is rotated around the axis, the rotation angle is 0 ° -90 °, the valve is fully open state.
The sanitary butterfly valve is featured by simple structure, small size, light weight, is composed by only a few parts. And only need to rotate 90 ° can quickly open and close the valve, namely simple operation, while the valve has a good fluid control characteristic. When the butterfly valve is in the fully open position, the thickness of the butterfly plate is the only resistance when the medium flows through the valve body. Therefore, the pressure drop caused by the valve is very small, so it has better flow control characteristic. Butterfly valve has two sealed types included a sealed seal and metal seal. Elastic seal valves, seals can be embedded in the valve body or attached to the butterfly plate around.
The metal sealed sanitary valves generally have a longer use life than elastically sealed valves, but it is difficult to achieve complete sealing. Metal seals can be adapted to higher operating temperatures, and elastomeric seals have a temperature-limited defect.
If the butterfly valve is required to be used as a flow control, the main thing is to properly select the size and type of the valve. Butterfly valve structure is particularly suitable for the production of large diameter valves. Butterfly valve not only is widely used in the oil, gas, chemicals, water treatment and other general industry, but also used in thermal power plant cooling water system.
Commonly used butterfly valve has a pair of butterfly valve and flange butterfly valve. The clip-on butterfly valve is a double-headed bolt to connect the valve between the two pipe flanges. The flange type butterfly valve is a flange with a flange connecting the two ends of the valve to the pipe flange with bolts.
Oznake: flange butterfly valve
- 04:33 -
