Lug Type Semi-shaft Butterfly Valve

The core advantages

It can be easily driven by a handle, worm gear and worm wheel, or pneumatic/electric actuators, achieving good fluid on-off control.

Excellent sealing performance: Modern Lug Type Semi-shaft Butterfly Valve mostly use high molecular materials (such as PTFE, EPDM, NBR, etc.) as the valve seat sealing ring. They have excellent elastic sealing performance, ensuring the strict requirement of zero leakage in both directions, and have a long service life.

Easy maintenance, low cost: The "ears" design is its most prominent feature.  The "protruding ear" design is the most practical and popular feature of this valve. It comes with "ears" (i.e. protruding ears) on both sides, with holes on them, which can be directly bolted onto the flanges at both ends of the pipeline during installation. It is not like some valves that require a long bolt to be threaded through the middle for fixation. The biggest advantage of doing this is that in the future, The "ears" design is the most practical and popular feature of this type of valve. The "ears" design is the most practical and popular feature of this type of valve. It has "ears" on both sides (which are the protruding parts), with holes on them. This makes maintenance very convenient and significantly reduces time and labor costs.

This way of maintenance is particularly convenient, greatly saving time and labor costs.

Its presence can be seen everywhere.

Company Strengths

As a well-known manufacturer in the domestic valve industry, Zhongguan Valve Co., Ltd. has leveraged its profound technical expertise and strict quality management system to transform its wedge valve with flanged ends into a market leader.

Outstanding materials science and technology:

Valve body material: Made of high-quality carbon steel (WCB), stainless steel (CF8/CF8M), duplex steel, etc. Through precise casting and CNC processing, it ensures sufficient strength and corrosion resistance.

Sealing technology: A multi-layer soft-hard composite sealing structure is adopted. The valve seat can be selected with different grades of rubber or polytetrafluoroethylene (PTFE) according to customer requirements, enabling it to maintain excellent sealing performance under high pressure, high temperature or corrosive media. The half shaft design has been precisely calculated and reinforced, ensuring the stability and durability of the valve plate during frequent opening and closing.

Innovative design concept:

The Lug Type Semi-shaft Butterfly Valve adopts a low-torque streamlined butterfly plate design. This not only reduces the flow resistance but also makes the opening and closing operation more effortless, significantly extending the service life of the actuator.