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Applicable occasions and operation method of ball valve
Applicable occasions of ball valve: Since the ball valve usually uses rubber, nylon and polytetrafluoroethylene as the seat sealing ring material, its use temperature is limited by the seat sealing ring material. The cut-off effect of the ball valve is accomplished by pressing the metal ball against each other between the plastic valve seats under […]
Hard seal installation method of ball valve
Hard seal installation method of ball valve: 1) Remove the protective covers on both sides of the flange, and rinse and clean with the valve fully opened. 2) Before installation, the whole machine should be tested according to the specified signal (electrical or pneumatic) (to prevent vibration caused by transportation from affecting the performance), and […]
Installation instructions for ball valves
Installation instructions for ball valves: 1. Indoor devices or outdoor applications with protective methods; 2. Outdoor installations are corroded by wind, sand, rain, dew, and sunlight; 3. Have flammable, explosive gas or dust environment; 4. Humid tropical and dry tropical environment; 5. The temperature of the pipeline medium is as high as 450℃; 6. The […]
The parameter and troubleshooting of the ball valve
The parameter level of the ball valve: 1. Nominal pressure or pressure level: PN1.0-32.0MPa, ANSI CLASS 150-900, JIS10-20K; 2. Nominal diameter or caliber: DN6～900, NPS 1/4 ～36; 3. Connection method: flange, butt welding, thread, socket welding, etc.; 4. Applicable temperature: -196℃～540℃; 5. Drive mode: manual, worm gear drive, pneumatic, electric, hydraulic, gas-liquid linkage, electro-hydraulic linkage; […]
Product features and advantages of ball valve
Product features of ball valve: 1. The three-way ball valve adopts an integrated structure in structure, with a four-sided valve seat sealing type, fewer flange connections, high reliability, and a lightweight design. 2. The three-way ball core is divided into T type and L type, with long service life, large circulation capacity and low resistance. […]
Classification and characteristics of ball valve
There are different ways of classification of ball valves. Function classification: 1. Bypass valve: The ball valve is generally opened by static water, so the bypass valve is set to be pressed first, that is, both sides are filled with water; 2. Air valve: when filling with water, the buoy will automatically close the valve […]
Characteristics of ball valve
Features of ball valve: 1. Wear resistance; because the valve core of the hard-sealed ball valve is spray-welded alloy steel, The sealing ring is made of alloy steel surfacing, so the hard sealing ball valve will not produce too much wear when opening and closing. (Its hardness coefficient is 65-70): Second, the sealing performance is […]
What is a ball valve?
A ball valve is a valve in which the opening and closing parts (ball) are driven by the valve stem and rotate around the axis of the ball valve. It can also be used for fluid adjustment and control. Ball valves are divided into pneumatic ball valves, electric ball valves, and manual ball valves according […]
Knife gate valve introduction and its characteristics
Knife gate valve entered China in the 1980s. In less than two decades, its use has expanded from ordinary fields to a wider range of industries, from coal preparation, gangue discharge, and slag discharge in mines and power plants to Urban sewage treatment has evolved from general industrial pipelines to specialized pipeline systems for food, […]
Gate valve characteristics and installation notes
Gate valve characteristics: Light weight The body is made of high-grade nodular cast iron, the weight is about 20%~30% less than the weight of traditional gate valve, and the installation and maintenance are convenient. Flat bottom brake seat: Traditional gate valves often silt in the grooves at the bottom of the valve due to foreign […]