Online Exporter 3 Way Motorized Valve - Scotch York Butterfly Valve – Hankun

Gate valves are designed for fully open or fully closed service. They are installed in pipelines as isolating valves, and should not be used as control valves.

Gate valves are often used when minimum pressure loss and a free bore is needed. When fully open, a typical gate valve has no obstruction in the flow path resulting in a very low pressure loss, and this design makes it possible to use a pipe-cleaning pig.

Operation of a gate valve is performed doing a neither clockwise to close(CTC) or clockwise to open(CTO) rotating motion of the stem. When operating the valve stem, the gate moves upwards or downwards on the threaded part of the stem.

A gate valve is a multi-turn valve, meaning that the operation of the valve is done by a threaded stem. As the valve has to turn multiple times to move from open to closed position, the slow operation also prevents water hammer effects.

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Details

Product Introduction

The valve stem axis deviates from the center of the disc and the center of the body at the same time, and the rotation axis of the valve seat has a certain angle with the axis of the valve body pipeline, which is called a triple offset butterfly valve. The scope of application of the triple offset butterfly valve can withstand pressure up to 2500lb, temperature resistance as low as -196℃, up to 700℃, sealing up to 0 leakage, and control ratio as high as 100:1. It means in all kinds of harsh and critical process control pipelines, whether it is an on-off valve or a control valve, as long as the type is properly selected, the butterfly valve can be safely used, and the cost is relatively low.

Product Advantages

‘Cam- action’ and ‘right angled’ conical sealing design ensures that the metal sealing components are never in contact until their final degree of closing – this results in repeatable sealing and a vastly extended valve life.

Metal-to- Metal sealing ensures bubble – tight shut-off, resulting in zero-leakage performance.

Suitability to harsh media – construction of the valve features no elastomers or materials typically affected by corrosion .

Geometric design of sealing components provides friction – free stroking throughout the valve. This extends the valve life and allows a lower – torque actuator to be fitted.

There are no cavities between sealing components, resulting in no clogging, low maintenance and extended valve life.

Valve body: WCB, WC6, WC9, CF8, CF8M

Valve stem: 2Cr13, 25Cr2MoV, 06Cr19Ni10, 0Cr17Ni12Mo2

Valve trim: WCB, WC6, WC9, CF8, CF8M

Packing: A182 F304, A182 F316

Actuator: Pneumatic actuator

Type: Scotch Yoke

Voltage: 24, 110, 220

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