Q11F NPT Two-Piece Ball Valve Overview

The Q11F NPT Two-Piece Ball Valve is a compact ball valve featuring a two-piece split-body structure with internal thread connections. The valve body is typically made of brass or stainless steel. Constructed from two bolted-together sections, it allows for easy disassembly, maintenance, and inspection. The valve operates via a 90-degree rotation of the stem to quickly open or close the flow, while a soft sealing material such as PTFE (polytetrafluoroethylene) ensures reliable sealing.With its simple structure, small size, and light weight, it is suitable for non-corrosive media such as water, oil, and air, and typically operates at pressures ranging from PN16 to PN40. Widely used in instrumentation, small-scale equipment, pneumatic pipelines, and general industrial fluid control systems, it serves as an economical and practical fundamental shut-off valve.

Q11F NPT Two-Piece Ball Valve Product Image

Q11F NPT Two-Piece Ball Valve Features

1. Two-Piece Split Structure – The valve body consists of two bolted-together parts, featuring a simple structure that allows easy disassembly, internal cleaning, and part replacement.

2. Compact Internal Thread Connection – Equipped with G or NPT internal threads, requiring minimal installation space, offering reliable sealing, and suitable for compact or dense piping arrangements.

3. Excellent Sealing and Ease of Operation – The PTFE seat ensures superior sealing performance, low friction coefficient, minimal opening/closing torque, and smooth hand-feel operation.

4. Low-Maintenance and Cost-Effective – If the seat or seals are damaged, quick replacement can be performed by disassembling the two-piece structure. Maintenance costs are low, and no special tools are required.

5. Economical and Widely Applicable – Brass or stainless steel construction provides corrosion resistance and long service life, offering high cost-performance. It is a versatile choice for various low-pressure, small-diameter pipelines carrying non-corrosive media.