25 mm Threaded Ball Valve Fast Switch Good Tightness HVAC Water Pipeline
25 mm ball valve with 90° quick open-close & reliable sealing, brass/SS threaded type for air conditioning, lab and brewing pipeline control.
Description
This 25 mm ball valve (DN25) is a standard pipeline shut‑off device. Its 90° quarter‑turn operation enables rapid flow control, while the PTFE sealing system ensures reliable tightness. Available in two main body materials – brass (brass ball valve) and stainless steel – the full‑port design minimizes flow resistance, making it suitable for long‑term on‑off service in small‑ to medium‑sized equipment, HVAC systems, food processing, and laboratory piping.
Specifications, Materials, Connections & Pressure
| Parameter | Detail |
|---|---|
| Nominal size | 25 mm (DN25) |
| Body configuration | 2‑piece ball valve |
| Body material | Brass CW617N / 304 stainless steel |
| Connection | Male/female threaded ball valve (BSP or NPT optional) |
| Pressure rating | 1000 WOG |
| Actuation angle | 90° quick on/off |
| Seal material | PTFE (Teflon) seat |
| Suitable media | Cold water, refrigerant, weak acid solutions, brewing water |
| Temperature range | –10°C ~ 120°C |
The split‑body (2‑piece) construction facilitates on‑site maintenance and disassembly. Threaded ends are compatible with galvanized steel, PPR, and other branch pipes. The PTFE seat resists thermal cycling and remains leak‑free under alternating hot/cold conditions. Operation requires just a quarter‑turn, reducing downtime during servicing.
Application Scenarios
Widely adopted in commercial HVAC fan‑coil branches, laboratory reagent lines, small‑scale beer brewing cooling systems, domestic/commercial water supply, and small air‑compressor refrigerant circuits – all involving low‑to‑medium flow rates and moderate pressures.
Case Study
At the HVAC VIET NAM commercial central air‑conditioning project in Hanoi (address: 4, Lane 4, Dieu Temple Street, Xuan Phuong village, Hanoi), the entire building’s chilled‑water branches for fan‑coil units were fitted with 25 mm ball valves. Given the system’s frequent cold/hot cycling and regular maintenance needs, the valve’s quick quarter‑turn action allows rapid isolation of individual circuits during repairs. Long‑term operation has shown zero leakage, significantly reducing the frequency of water‑leak repairs and stabilizing the pressure of the central air‑conditioning water loop.
Key Advantages Summary
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Rapid switching – full open/close in just 90°, greatly improving maintenance efficiency.
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Superior sealing – PTFE seats resist aging and maintain zero leakage under thermal cycling.
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Material versatility – brass offers cost‑effectiveness; stainless steel provides corrosion resistance for chemical reagents.
