Lug-Type Butterfly Valve

Let's first talk about the parameters that everyone cares about the most. We don't play tricks, but list the practical ones directly: the nominal diameter ranges from DN40 to DN600, which can basically fit most conventional industrial pipe sizes; the pressure rating reaches PN1.6-PN6.4MPa, which can withstand both low-pressure water transportation and medium-high pressure oil transportation; it has a wide applicable temperature range and can work stably in low-temperature environments of -40℃ to high-temperature working conditions of 350℃; the main material can be cast steel or stainless steel, and the sealing surface is made of EPDM rubber or polytetrafluoroethylene, which is corrosion-resistant and wear-resistant, with strong medium compatibility, and can handle water, oil, gas, and weak acids and alkalis. The most crucial part is the lug design, which allows the valve to be disassembled and assembled independently without removing the pipeline, making later maintenance extremely convenient.

People who have used ordinary butterfly valves may have encountered such troubles: the entire section of the pipeline has to be disassembled during installation, which is labor-intensive; the seal becomes loose and the medium leaks after long-term use, which is both wasteful and dangerous; the adjustment accuracy is poor, and the flow control is always inaccurate. Our lug-type butterfly valve is specially optimized to address these pain points - the lug structure has built-in positioning holes, which can be fixed by aligning the bolts directly during installation without moving the front and rear pipelines, increasing construction efficiency by 50%; the valve plate adopts a double-eccentric design, which fits more closely with the sealing surface, and the leakage rate is far lower than the national standard. Even with long-term high-frequency opening and closing, the sealing performance does not deteriorate; combined with a high-precision valve stem, the flow adjustment accuracy can reach ±2%, which can achieve precise control whether it is for constant pressure adjustment in municipal water supply or medium proportion control in chemical workshops.

As for the application scenarios, they are extremely wide. Municipal sewage treatment plants use it to adjust the flow of aeration tanks, and cooperate with floating ball valves to control sludge discharge, making the entire system run more stably; in the petrochemical field, it can be used as an emergency shut-off valve on oil pipelines, while floating ball valves are responsible for medium diversion in high-pressure sections, providing double safety guarantees; in food and pharmaceutical factories, the stainless steel material meets hygiene standards and can be used for the transportation and control of liquid medicines and pure water.

Zhengmao has been in the valve business for many years, and we focus on "selling not only products but also peace of mind". This lug-type butterfly valve comes with a one-year warranty directly. Within the warranty period, as long as the damage is not caused by human factors, whether it is the aging of seals or valve stem failure, we provide free maintenance and free replacement of parts, without you spending an extra penny. Moreover, whether it is day or night, if you encounter problems during installation and use, someone will answer the technical hotline at any time, providing 24-hour online guidance, so even novices can easily complete installation and commissioning.

If you want to learn more about the practical cases of this butterfly valve, or want to know if the company has new fluid solutions and preferential activities recently, just follow Zhengmao Valves' official WeChat public account, where the latest updates and technical insights will be posted in a timely manner. You can also contact us directly if you have any customization needs. Whether it is special materials or non-standard sizes, we can customize them for you, making your fluid system more worry-free and efficient to use.