Cock check valve manufacturers, gate valve overview The opening and closing parts of gate valves are gates. The movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, which is not suitable for adjustment and throttling. The gate of the wedge gate valve can be made into a whole, called a rigid gate; it can also be made into a gate that can produce slight deformation to improve its manufacturability and compensate for the deviation of the sealing surface angle during the processing. The plate is called an elastic gate. The structure is compact, the shape is beautiful, the flow path is full-diameter, and the coefficient of flow resistance is small. The sealing pair materials are reasonably matched and have a long service life. The structure of the gate is: elastic wedge-shaped single gate or rigid wedge-shaped single gate. The surface of the valve stem is treated with nitriding, which has good corrosion resistance and friction resistance. The packing is made of fluorine material, with reliable sealing, flexible operation and small opening and closing torque. Various piping flange standards and flange sealing surface types can be selected, and various drive modes such as manual, worm gear transmission, electric, pneumatic, and hydraulic can also be selected to meet different needs of users.

       For the manufacturers of plug-type check valves, the expansion joints are socket pipes, the outlet nozzle of each socket joint is plug-in type, and each socket joint can be connected by bolts. The expansion joint is a socket tube, and the outlet nozzle of each socket joint is a plug-in type. Allowed elbows, sequential elbows, negative pressure elbows, valves, various conduits, clamps and other purposes are not allowed. In the water pump system, due to the site layout and equipment requirements, the on-site installation of the water pump is often used. 1. How to use The power distribution of the water pump is generally installed on the top of the water pump room, and cooling water is installed in time, so that the water pump and pipes will not directly pressurize the water pump room.

      Control of pipe flow, pressure and temperature of various industrial automation production. For example: electric power, metallurgy, petrochemical, environmental protection, energy management, fire protection system, etc. The sealing surface is less brushed and corroded by the medium. No turbulence, no pressure reduction. The structural length is short, the manufacturing process is good, and the application range is wide. It is easy to cause erosion and scratches between the sealing surfaces, and it is difficult to maintain. The overall size is relatively large, a certain amount of space is required for opening, and the opening and closing time is long. Single gate type, double gate type and elastic gate type; parallel gate type gate valve can be divided into single gate type and double gate type.

      Professional focus on original original goods, quality is the foundation of the enterprise, moral integrity, and always maintain the brand. The product quality of Shanghai Fanyu Fluid Equipment is stable and reliable, and enjoys a high reputation among users with its unique performance. It continuously introduces and digests foreign advanced technology, develops various special working condition regulating valves by itself, and makes continuous progress in automation technology. . The pressure reducing valve is also a kind of pneumatic ball valve. So how does the pressure reducing valve achieve its working purpose and what is its working principle? Let's take a look at the relevant instructions below. What are the core features of pneumatic ball valves? Pneumatic ball valve is powered by compressed air, so the pneumatic ball valve often leaks during use. Let's take a look at the ways of pneumatic ball valve leakage. Answer The structure and function of pneumatic stainless steel ball valve 1. Floating pneumatic V-shaped ball valve The ball of the stainless steel pneumatic ball valve is floating. Under the action of the medium pressure, the ball can produce a certain displacement and press tightly on the sealing surface of the outlet end to ensure that the outlet end is sealed. . Ask how to control the flow of the pneumatic ball valve? Answer The pneumatic ball valve evolved from the plug valve. It has the same 90-degree rotation action, but the difference is that the cock body is a sphere with a circular through hole or channel passing through its axis.

       If the valve stem seal is damaged due to fire, metal contact will be formed between the convex step and the valve body to ensure the valve stem seal and anti-static function: there is a spring between the ball, the valve stem and the valve body. , The static electricity generated in the switching process can be exported. The actuator adopts the new series of GT pneumatic actuators, with double-acting and single-acting (spring return), rack and pinion transmission, safe and stable, and large-caliber valves adopts AW series pneumatic actuators Fork drive, reasonable structure, large output torque, double-acting and single-acting, gear-type double pistons. It can provide users with corresponding national standards, ANSI, JPI, JIS, DIN and other foreign flange standard products. The flange distance can be determined according to user needs. Internal thread connection gate valve and butt welding connection gate valve are divided into 100-degree type and two-stage type. Harmonic type, the valve body casting adopts imported advanced technology, reasonable structure and beautiful appearance.

       In the cast iron gate valve market, there are only two types, balanced type and permutation type. Of course, there are also software balance type and mechanical balance type. Balanced type: a type used on cast iron gate valves. The permutation and combination type is the center, the stretch balance type is the cross-sectional shape, and the permutation and combination type is the upper corner shape. This kind of gate valve has simple structure, arrangement and convenient operation, and is usually not suitable for segmented propulsion. Mechanical balance type: Permutation and combination type is divided into two types: No. 9 type and No. 11 type. Type 3 includes two types: movable type and movable pressure type. The movable type can be divided into liquid suction spring type and pressure spring type. Both are spring-loaded gate valves, and the balanced pressure type includes reciprocating and metal pipeline types. In order to ensure the balanced operation of water, gas, steam, and water, the design requirements for water pipes are level 1, level, and level respectively. All levels of waterway tanks can accommodate 6 pipes and waterway appliances, with a total water flow of 8-10m3/s.

       A valve is an accessory for pipeline transportation of media. It is a device accessory used to change the section of the pipeline and the flow direction of the medium, and to control the pressure, flow, and temperature of the transportation medium. It has the following 8 functions. Gate valves, globe valves, butterfly valves, ball valves, stopcock valves and other valves can be used to connect or cut off the media at all stages in the pipeline. Control valves, throttle valves, pressure reducing valves and other valves can be used to adjust the flow and pressure of the medium in the pipeline. Valves such as distribution valves, through-cock valves, (through/through) ball valves, etc. can be used to change the direction of medium flow in the pipeline.

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