Concentric Lug Butterfly Valve

Concentric Lug Butterfly Valve: Introduction & Application

1. Basic Overview

First, concentric lug butterfly valves serve as cost-effective pipeline accessories.

Unlike ordinary flange valves, they own built-in lugs on both valve sides.

Therefore, they need no full flange assembly and simplify field installation.

Besides, they fit new pipeline construction and old equipment renovation perfectly.

2. Structural Features

Firstly, the stem, disc and valve body share one central axis.

Thus, the whole structure stays simple, compact and failure-resistant.

Meanwhile, daily maintenance takes almost no extra time and cost.

Also, the disc presses rubber seals to achieve stable sealing performance.

Furthermore, it provides equal sealing effects for two-way medium flow.

Hence, workers do not need to confirm fluid direction during installation.

Moreover, it features low flow resistance and light opening and closing torque.

In addition, it matches manual, electric and pneumatic driving modes.

3. Unique Lug Installation Advantages

Specifically, lug structure is its biggest advantage over common wafer valves.

Instead of double flanges, it fixes directly via lug hole bolts on site.

Also, it supports pipe clamping and single-end blind sealing operations.

Besides, it adapts well to pipe end installation and narrow working spaces.

Therefore, it saves extra flange parts and shortens construction time.

Meanwhile, its small occupation optimizes overall pipeline layout.

4. Working Performance

Generally, soft-seal types achieve nearly zero leakage in daily work.

However, it cannot adapt to ultra-high temperature and extreme pressure.

Still, it works stably under 1.6MPa medium and low pressure conditions.

Also, the valve owns light weight and mature integrated casting craft.

Furthermore, it shows great cost advantages in bulk engineering purchases.

5. Wide Application Scenarios

Primarily, it controls water and sewage for municipal water treatment plants.

Besides, it serves circulating water systems for power and steel factories.

Moreover, paper, food and chemical industries also widely adopt this valve.

Meanwhile, it fits gas delivery, ventilation and building water pipelines.

Additionally, it adjusts flow and cuts off pipelines for equipment maintenance.

6. Product Summary

Overall, this valve has simple structures and mild usage requirements.

Finally, flexible installation and stable sealing improve its practical value.

Hence, it becomes a preferred choice for common low-pressure pipeline systems.