NEWS-第5页-HENAN MF VALVE CO.LTD.

What is three eccentric butterfly valve？

Three eccentric butterfly valve is designed by the principle of three-dimensional eccentric, the spatial trajectory of the sealing surface can be idealized. There is no friction and interference between the sealing surfaces. And due to the optimized configuration of the sealing material, the sealing performance, corrosion resistance, high temperature resistance and wear resistance of the butterfly valve can be guaranteed. Three eccentric butterfly valve is widely used in metallurgical, electric power, petrochemical, water supply and drainage, municipal construction, etc Advantages: 1. Small opening torque, flexible and convenient, labor-saving and energy-saving. 2. The three-dimensional eccentric structure makes the disc tighter and its sealing performance is reliable, achieving no leakage. 3. High pressure resistance and corrosion resistance. Wear resistance, long service life, etc. Structural features: ♦First Offset: The stem axis deviates from the center of the disc. ♦Second Offset: The stem axis deviates from the center of the body. ♦Third Offset: The cone axis of the sealing surface of the disc deviates from the cylindrical axis of the body and belongs to the face seal. If you wanna know more about three eccentric butterfly valves, welcome to contact ME VALVE!

07/072023

Concentric Soft Seal Butterfly Valve DN500 Torque Test

The torque of a valve refers to the force or torque that must be applied to open or close the valve, and is a comprehensive technical indicator for the action of the valve under medium pressure. When closing the valve, it is necessary to form a certain sealing pressure ratio between the sealing surfaces of the opening and closing parts and the valve seat. At the same time, it is also necessary to overcome the friction between the valve stem and the packing, between the threads of the valve stem and the nut, at the end support of the valve stem, and other friction parts. Therefore, a certain closing force and closing torque must be applied. In addition, during the opening and closing process of the valve, the required opening and closing force and torque vary, with their maximum values occurring at the final moment of closure or the initial moment of opening. In order to strive to reduce the valve and its closing force and torque, and evaluate the comprehensive performance of the valve, only by detecting the torque during the entire process of valve opening and closing, and judging the corresponding data, can reasonable conclusions be drawn. This...

06/272023

Ductile lron Wafer Butterfly Valve Body

Henan MF Valve Co., Ltd. is a professional manufacturer and supplier of valves, with various types of butterfly valves, gate valves, wafer check valves and Y strainer. Today, we would like to recommend one of our high-quality products to you: Wafer Butterfly Valve Recently, our newly developed wafer butterfly valve body mold has been completed. The casting of the valve body is processed and produced in the form of an assembly line. The dimension accuracy of the valve body is higher and the production costs had been reduced. At present, our factory has sufficient valve body blanks in stock, so the delivery time will be faster. Available configurations are： Body：Ductile Iron Disc：Ductile Iron/ CF8/ CF8M Seat：EPDM/ NBR/ PTFE Shaft：45#/ SS416/ SS420/ SS316 Top flange standard: ISO5211 The valve body is sprayed with epoxy resin, and the spraying thickness can reach 250um. The spraying color is mostly RAL5005 blue, or customized red, gray, etc. If you wanna know more about butterfly valves, welcome to contact ME VALVE. ME VALVE looks forward to cooperating with you!

06/052023

The difference between single-acting and double-acting pneumatic actuators and their working principle

Pneumatic actuator is an actuator device that uses air source to pressure-drive the opening and closing or regulating valve. Compared with electric actuators, pneumatic actuators perform very fast. Pneumatic actuators are divided into single-acting and double-acting according to different forms of action, and the differences and principles of the two are also different! Double-acting actuators are mainly air-opening-air-closing, that is, the valve needs to use air source whether it is opening or closing. Usually, the ventilation is opened, the ventilation is closed, the air source is lost, the valve remains in the current state, and the valve can continue to work only after the air source is reconnected. Double acting (top view) Single acting pneumatic actuator has the function of spring return, and the user can choose the normally open type and the normally closed type according to the needs of the working conditions. Situation 1: When the...

05/272023

Stainless steel wafer type butterfly valve

Stainless steel butterfly valves are widely used in industrial production such as petroleum, chemical, metallurgy, electric power, food, pharmaceutical, water treatment and other industries. Compared with other types of butterfly valves, stainless steel butterfly valves have long service life and strong durability. Stainless steel butterfly valve can resist oxidation in the atmosphere and has corrosion resistance in the medium of acid, alkali and salt. Stainless steel butterfly valve configuration is as follows: ♦Body: stainless steel ♦Disc: stainless steel ♦Seat: PTFE Advantages and characteristics: ♦Small volume, ♦Light weight, ♦Easy to installation, ♦Good sealing performance ♦Long service life. In order to avoid stainless steel rust, please clean and scrub frequently to remove adhesions and exclude external factors that cause rusting. lf you want to know more about butterfly valves, welcome to contact MF VALVE.

05/052023

Y strainer lined with PTFE

Y strainer lined with PTFE,PN16,DN60,WCB material Product description Using the method of molding technology, the tetrafluoroplastic is lined on the inner cavity and inner surface of the shell of the steel Y strainer and the shell cover to form a lining layer, in order to isolate the direct contact between the metal shell and the corrosive medium, thereby It is guaranteed that it can be used in any concentration of acid, alkali, salt, oxidizing agent, reducing agent, organic solvent and other media without being corroded. Its filter cartridge and filter screen are respectively made of a porous tube of polytetrafluoroethylene material and a wire-drawn woven square hole screen. Y strainer lined with PTFE is suitable for installation in chemical, petrochemical, pharmaceutical, fuel and other highly corrosive pipelines to filter solid particles in it to protect compressors, pumps, valves, instruments, etc. Y strainer image Related product display Double flange butterfly valve lined PTFE,DN80,PN16,worm gear PFTE stainless steel butterfly valve Butterfly valve lined with PTFE, body:ductile iron, handle drive ...

04/212023