Q11F Internal Thread (Lockable) Three-Piece Ball Valve – Overview

The Q11F internal thread (lockable) three-piece ball valve is a brass or stainless steel three-piece ball valve integrated with a locking mechanism and designed for internal thread connection. The valve body consists of two end caps and a central body section bolted together, offering robust construction and easy disassembly. A dedicated lock hole is provided at the stem or handle, allowing the use of a padlock or seal.The valve operates by rotating the stem to drive the ball 90 degrees for opening or closing, with the seat made from soft sealing materials such as PTFE (polytetrafluoroethylene). This design not only provides reliable shut-off functionality but also incorporates a physical locking mechanism to prevent unauthorized or accidental operation.Suitable for non-corrosive media such as water, oil, and gas, it is commonly used in instrumentation, water/gas supply systems, equipment pipelines, and public facilities where safety management or process control is required.

Q11F NPT Three-Piece Ball Valve (with Lock) Product Image

Q11F Internal Thread (Lockable) Three-Piece Ball Valve Features

1. Three-Piece Structure for Easy Maintenance: The split-body design allows for internal cleaning, inspection, and seal replacement without complete removal of the valve from the pipeline, greatly simplifying maintenance procedures.

2. Compact and Reliable Internal Thread Connection: Equipped with G or NPT internal threads, the valve offers a short, compact structure, easy installation, and excellent sealing performance, making it suitable for piping layouts with limited space.

3. Integrated Locking Mechanism to Prevent Misoperation: The stem or handle is designed with a standard lock hole, compatible with padlocks or lead seals, effectively preventing unauthorized operation and enhancing process safety and management.

4. Excellent Sealing and Smooth Operation: The PTFE seat ensures reliable sealing, low friction coefficient, minimal opening/closing torque, and light, flexible operation.

5. Cost-Effective, Durable, and Versatile: Constructed from corrosion-resistant brass or stainless steel for long service life and high cost-performance. The locking feature makes it particularly suitable for applications requiring process isolation, access control, billing management, or safety regulation.