Stainless Steel Ball Valve
Hardware & Tools
The stainless steel ball valve is a quarter-turn shut-off valve used across water, oil, gas and chemical piping systems. Its solid ball with a central bore provides a tight seal and low operating torque, making it a reliable choice for both manual and automated flow control. Stainless steel construction resists corrosion and suits demanding industrial environments.
Main Specifications
| Body Material | Stainless Steel 304 / 316 |
| Ball & Stem | Stainless Steel 304 / 316 |
| Seat Material | PTFE / TFM |
| Connection | Threaded (BSP / NPT) or Flanged |
| Size Range | 1/4" - 4" (DN8 - DN100) |
| Pressure Rating | PN16 - PN64 / 1000 WOG |
| Temperature Range | -20°C to 180°C |
| Operation | Lever Handle / Gear / Actuator |
| Standard | API 6D / ISO 5211 / CE |
Core Advantages
- Corrosion-resistant 304/316 stainless steel body for long service life
- Quarter-turn operation with low torque for fast shut-off
- PTFE seats provide bubble-tight sealing across a wide temperature range
- ISO 5211 mounting pad accepts electric and pneumatic actuators
- Available in threaded and flanged ends to suit existing pipework
Typical Application Scenarios
- Water treatment and distribution systems
- Oil and gas transfer lines
- Chemical processing plants
- Food and beverage piping
- HVAC and building services
Buying Tips for Importers
- Specify 316 over 304 for chloride or corrosive media exposure.
- Match the connection standard (BSP vs NPT) to your existing pipework to avoid adapters.
- Confirm the pressure class against your system's maximum working pressure.
- Request material test certificates (MTC) for critical applications.
Frequently Asked Questions
What is the difference between 304 and 316 stainless steel?
316 contains molybdenum, which improves resistance to chlorides and chemicals. Choose 316 for marine, chemical or high-corrosion environments, and 304 for general water and air service.
Can these valves be automated?
Yes. The ISO 5211 mounting pad accepts standard electric and pneumatic actuators, so you can automate the valve without changing the body.
What pressure rating should I choose?
Match the rating to your system's maximum working pressure with a safety margin. PN16 suits most general service, while higher-pressure lines need PN40 or PN64.
Do you provide material test certificates?
Yes, manufacturers can supply EN 10204 3.1 material certificates and hydrostatic test reports on request for critical applications.