function of a check valve
ss butterfly valve 8 butterfly valve flange butterfly valve Why is the cut-off pressure difference of angular distance type valve large? The cut-off pressure difference of the angular distance valve is large because the solidarity of the medium being occurring in the valve core or the valve plate is extremely small for the momentum moment … Read more
1.Check whether butterfly valve specifications, pressure, temperature and corrosion resistance meet the requirements before installation. The parts should be checked for damage or loosening. 2. Many butterfly valves can be installed on pipelines of any angle, and it is appropriate to close and install them; when welding pipeline flanges, the valve sealing opening should be … Read more
The ceramic-lined valve has very good performance on abrasion erosion, corrosion resistance, excellent heat-shielding, and electric insulation. Mainly used in electric power, petroleum, chemical, metallurgy, mining, sewage treatment, and other industries where the metal valve cannot be applicable. Table of Contents What is a Ceramic Ball Valve? Design of Ceramic Ball Valves Components of Ceramic … Read more
Table of Contents What is a Ball Valve? What is a Gate Valve? Ball Valve vs Gate Valve Working Mechanism of Gate Valve vs Ball Valve Valve Flow Direction of Gate vs Ball Valve Valve Seal Capacity of Ball vs Gate Valve What is the Difference Between A Gate Valve and Ball Valve? Which is … Read more
Floating Ball Valve usually uses flange connection or butt welding connection. Floating Ball Valve‘s sphere has only the upper stem, and the sphere can be slightly displaced. Chao Da improved the traditional packing cover to the two-body structure design of packing plate and packing sleeve. The packing sleeve and packing pressing plate were in spherical contact to … Read more
The working principle of the three-piece ball valve is as follows: I. opening process In the closed position, the ball is pressed on the valve seat by the mechanical pressure of the valve rod. When the handwheel is turned anticlockwise, the valve rod moves in a reverse direction, and the angle plane at the bottom … Read more
Electric ball valves are divided into explosion-proof and non-explosion-proof types, which are widely used in natural gas, oil products, paper making, chemical plants, mechanical equipment, and other fields. In the face of such a large amount of usage. The problem of how to improve the efficiency and cost savings of this electrically operated ball valve, and … Read more
Table of Contents Ⅰ. Composition of hydraulic forged ball valve Ⅱ. Replacement of working sealing ring of hydraulic forged ball valve Ⅰ. Composition of hydraulic forged ball valve The hydraulic forged steel ball valve consists of an electric actuator and a three-way ball valve. Changing the relative position of the ball core and the pipeline … Read more
hydraulic control valve gas control valve modulating control valve This Smart positioner is well accepted in the market due to the “Ease of calibration”, “Stock availability” and “Valve adaptability.” This Smart positioner has an i-drive type rotary selector for easy setup and calibration. Table of Contents Electric Foxboro Eckardt valve positioners monitor the positions of … Read more