ballvalve中文

Pressure & Temperature Relief Valves - Valves Hot Water System Valves Pressure & Temperature Relief Valves. ... 15mm (1/2") P & T Relief Valve. SKU: ...

Butterfly valve

Ball valves use a metal ball with a hole bored through the center, sandwiched between two seats to control flow. Used in many hydrocarbon process applications, ball valves are capable of throttling gases and vapors and are especially useful for low-flow situations.

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Gate valve

Welcome to our Velocity of Fluid in Pipe (m/s) hydraulic calculator, a handy tool when designing hydraulic systems. This pipes and hoses formulae calculator allows you to input the Flow Rate (Q) in l/min and the Pipe Diameter (d) in mm to obtain the corresponding Velocity (m/s). To ensure optimal system performance, it's crucial to consider the recommended fluid velocity ranges. For suction lines, the recommended range is 0.625m/s – 1.25m/s, for pressure lines it's 2.1m/s – 4.75m/s, and for return lines, it's 1.5m/s - 3m/s. These ranges are based on oils with a maximum viscosity grade of 70 cSt at 38°C, operating between 18°C and 51°C. Additionally, please note that for pipe runs greater than 10m, the pipe size should be increased proportionally. Furthermore, it's important to keep the intake line length under 1m.

Check valve

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Note: For pipe runs greater than 10m the pipe size should be increased correspondingly. The intake line should never exceed 1m in length.

This double check valve assembly is designed to prevent the backflow of polluted water from entering into the potable water supply due to back siphon-age ...

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Globe valve

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Flow rates are maintained to within ±15% between 15 and 125 psi (1 to 8.6 bar). The flow rate varies due to manufacturing tolerances and water temperatures.

Solenoid valve

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Home; 356 Tekmar Variable Speed Control. Add to cart. Close. Skip to the end of the images gallery. 356 Tekmar Variable Speed Control.

Every precaution has been made to make sure the above calculator is accurate. However, we cannot guarantee the calculations you make are appropriate for your applications and online calculations could produce erroneous figures. If you do see figures that you are unsure about, please don't hesitate to contact us.

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A ball valve consists of a valve body in which a large sphere with a central hole equal to the inside diameter of the pipe is mounted. As the ball is rotated, in the fully open position the valve provides the through conduit or full bore required for unrestricted flow of the fluid and scrapers or pigs. Compared with a gate valve, a ball valve has very little resistance to flow in the fully open position. The ball valve, like the gate valve, is generally used in the fully open or fully closed positions.