LLQF Hand-Automatic Integrated Electric Ball Valve for Solar Water Tap Systems – Brass Two-Way and Three-Way Options

The LLQF hand-automatic integrated electric ball valve delivers reliable water flow control for solar water tap systems and other automated plumbing applications. Combining manual and 220V electric operation, this valve gives you the flexibility to open or close the flow by hand or remotely via the integrated actuator. With a brass body, PTFE sealing, and a built-in limit switch, it is designed for straightforward installation and dependable performance. Available in two-way and three-way configurations with nominal diameters from DN15 to DN50, it suits a wide range of pipe sizes and system layouts.

Features and Construction

This valve is built around a durable brass body with a PTFE seal, offering reliable sealing and long-term operation in water systems. The hand-automatic integrated actuator allows manual override and 220V electric control, with a built-in limit switch for position feedback.

Material and Build

The valve body is made from brass, providing good corrosion resistance and mechanical strength for water tap applications. The sealing material is PTFE, chosen for its low friction and reliable sealing performance at working temperatures up to 95°C. Connection is via standard threads, making installation simple with common plumbing fittings.

Size and Practical Fit

Nominal diameters range from DN15 (4 points) to DN50 (2 inches), covering common pipe sizes. The two-way options are available in A through F (DN15 to DN50), and three-way options in G through J (DN15 to DN32). There are also separate options for the actuator (K) and valve body (L), allowing you to replace or upgrade parts individually.

Uses and Placement

This ball valve is well suited for applications where automated water control is needed, such as solar water heating systems, irrigation timers, or remote plumbing management. The hand-automatic integration ensures you can still operate the valve manually during power outages or maintenance.

Event or Professional Use

Plumbers and installers can use this valve for projects requiring reliable electric actuation with manual backup. The limit switch simplifies integration with building management systems or PLC controllers, providing clear valve status for automation.

Everyday Home Use

Homeowners with solar water heating setups can automate water flow control for convenience and energy efficiency. The brass body and PTFE seal require minimal maintenance, and the manual override offers peace of mind if the power goes out.

Benefits and Buying Value

This valve combines the durability of brass construction with the flexibility of hand-automatic operation, making it a practical choice for both professional and home use. The built-in limit switch adds system integration value without extra components.

Reuse and Low Maintenance

The PTFE seal and brass body are designed for long service life in clean water applications. No special maintenance is required beyond standard inspection for leaks or wear; the valve can be manually operated to check for smooth movement.

Why Choose This Product

With multiple size options (DN15 to DN50) and both two-way and three-way configurations, this valve adapts to your specific pipe diameter and system design. The integrated hand-automatic actuator reduces installation complexity compared to separate manual and electric valves, saving time and hardware costs.