Principles of ball cock valve evolved from its opening and closing parts as a sphere, the use of the sphere around the stem axis of rotation 90o to achieve the purpose of opening and closing. Valve in the pipeline is mainly used for cutting, distribution and change the direction of media flow, the design of the ball into the V-shaped openings also has a good flow regulation. Ball is not only a simple structure, good sealing performance, but also in a certain range of nominal by the smaller, light weight, low consumption of materials, installation size, small, and the driving torque is small, simple, easy to open and close fast, the ball valve is the last decade one of the fastest-growing varieties of the valve. Especially in the United States, Japan, Germany, France, Italy, Spain, Britain and other industrialized countries, the valve is widely used, the use of the variety and quantity continues to expand, to the high temperature, high pressure, big mouth by high tightness, long life, excellent performance and adjust the direction of a valve function, its reliability and other performance indicators have reached a higher level and has partially replaced valve, globe valve, throttle. With the ball advances in technology, in the foreseeable short-term, see, in particular in the oil and gas pipelines, oil refining and nuclear industry on a cracker will have a wider range of applications. In addition, other large and medium-caliber industry, in areas of low pressure, valve will also be one of the leading valve type. Ball is 50 years of this century, the advent of a valve, in half a century, has developed into a major ball valve. Ball valve is mainly used for cut off or connected media can also be used for fluid regulation and control, V-ball valve for flow control and more precise control, while the ball valve is used to allocate the flow of media and change the media.Air gas Range Valves
Benefits applicable to the regular operation of valve opening and closing fast, light, fluid resistance small, simple structure, relatively small size, light weight, easy maintenance, good sealing performance, without restriction on mounting direction, the flow of media can be arbitrary, no vibration noise.Gas Valve Convection Oven
Ball valve installation and maintenance shortcomings should note the following, to leave the position of valve handle rotation can not be used as a throttle, with the drive mechanism of the valve should be installed upright.
Electric valve for the two cut off, adjust the occasion. Valve and the actuator connected by straight way, the electric actuator servo system built without reprovision servo amplifier, the input 4-20mA control signal and 220VAC power supply to operate. With a simple connection, compact structure, small size, light weight, resistance, stable and reliable operation.
Pneumatic valve with a new series of GT-type pneumatic actuator, double-acting and single acting spring return, rack and pinion drive, safe and reliable; large diameter valves with pneumatic actuator Series AW-type fork-type drive, reasonable structure, output torque, there are double acting and single acting.
Ball valve with T-and L-, T-type channels make three orthogonal interconnected and cut off the third channel, divert traffic, merging effect, L-type can only connect the two orthogonal channels can not be maintained third pipe connected with each other only as a distribution function
Four-way valve fluid resistance: the ball and the body of the connection pipe section are equal, and the ball arcs connected by channels, the medium through the sphere, the fluid resistance. Sealing performance, valve seat with a certain elastic deformation and high-strength PTFE material, to achieve good sealing performance ensured the stability of the valve. Long service life, the valve spool and light neck material is austenitic stainless steel, valve seat material selection PTFE, can achieve good anti-corrosive effect, extending the valve life.
Ball has good heat insulation cold properties, and the valve diameter and the diameter of the same, while the media in the pipeline to reduce heat loss. Mainly used in petroleum, chemical, metallurgical, pharmaceutical, food and other types of systems to be solidified at room temperature transport of high viscosity media.
Department of the fixed valve seat in the two parts of the body and the valve along the axis perpendicular to the channel cross-section is divided into three parts, the entire valve stem along the central axis symmetrical, it is mainly used to cut off the pipeline, distribution and change the direction of media flow. Structure to ensure its large pivot the ball accurately under high pressure center to ensure the good operating performance of the valve, the standard seat structure by the spring, will push the ball valve seat to ensure a good two-way sealing performance of import and export, the use of own discharge valve, the valve body cavity may be out emissions, use of anti-blow out protection of the pivot structure, effectively prevent leakage, low friction coefficient of the bearing, so to minimize the torque, easy to open and close the valve; the stem and Effective body contact, so that superior performance anti-static grounding devices and so on.
Cut off or turn floating ball valve in the pipeline for the media, the choice of different materials, can be separately applied to water, steam, oil, liquefied petroleum gas, natural gas, gas, nitric acid, acetic acid, oxidizing medium, urea and other media, in a variety of valves, the valve flow path of least resistance, open full bore ball valve, ball channel and connection channel diameter of the valve body and into a diameter equal to the medium almost no loss of flow.

MORE NEWS