Wafer Ruber Lined Butterfly Valve

Rubber lined butterfly valves are a type of valve which can be used for isolating or regulating flow.

The closing mechanism is the disc which sits in the center of the valve body. The disc is connected to a handle or actuator via the shaft which passes from the disc through the top of the valve body.

Unlike a ball valve, the disc of the butterfly valve is always present in the flow, which will induce the pressure drop.

Compared with the ball valve, a butterfly valve can be shut off quickly but requires less support due to its lighter weight.

Rubber lined butterfly valves operate in a quarter turn, meaning that rotating the closed disc 90°will fully open the valve, and vice versa. They can also be opened incrementally in order to throttle flow.

This can be accomplished manually, but throttling flow will be more precise when an actuator is used cooperatively.

Actuators can be customized to allow incremental flow, by using positioners in the case of pneumatic and hydraulic actuators, or by using modulating boards in the case of electric actuators.

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Product Introduction

The lined butterfly valve not only has the strength of metal, but also has corrosion resistance characteristics. The various lined butterfly valves produced by our company are made of cast steel, stainless steel, ductile iron and other metal parts. The inner cavity and flow parts of the valve are lined with good corrosion-resistant engineering plastics and produced with advanced steel-plastic molding technology. According to different lining thickness, the lining materials can be divided into 3-8mm fluoroplastics (F46, F4, F3, PFA, PVDF), reinforced polyethylene FRPP, ultra-high molecular material polyethylene, propylene, etc. Valves have been passed electric spark and water pressure tests.

Valve body: Cast iron, nodular cast iron, carbon steel, 304/304L/316/316L

Valve seat: NBR/EPDM/PTFE/VITON special rubber of desulfurization

Valve trim: 2507 dual phase steel/1.4529 dual phase steel/Dl/WCB/CF8/CF8M/C954

Valve stem: 2Cr13/304/420/316

Actuator: Electric actuator

Type: Part-turn

Voltage: 110, 200, 220, 240, 380, 400, 415, 440, 480, 500, 550, 660, 690

Control type: on-off

Series: intelligent

Previous: Triple Offset Butterfly Valve

Next: Single Seated Valve(Cage)

Electric Actuated Butterfly Valve

Motor Operated Butterfly Valve

Motorized Butterfly Valve

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Wafer Ruber Lined Butterfly Valve

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