Stop valve
When it comes to plumbing and industrial applications, a reliable stop valve is essential for controlling fluid flow. Our high-quality stop valves are designed for durability, efficiency, and precision in various demanding environments.
Stop Valve Specifications
Material Options
- Brass: Ideal for residential plumbing, resistant to corrosion
- Stainless Steel: Perfect for industrial applications, highly durable
- PVC: Lightweight option for chemical applications
- Cast Iron: Heavy-duty choice for high-pressure systems
Technical Parameters
| Model | Size Range | Pressure Rating | Temperature Range | Connection Type |
|---|---|---|---|---|
| SV-100 | 1/4" to 2" | 600 PSI | -20°F to 250°F | Threaded |
| SV-200 | 2" to 8" | 300 PSI | -40°F to 400°F | Flanged |
| SV-300 | 1/2" to 4" | 1000 PSI | -10°F to 500°F | Welded |
Stop Valve Applications
Our stop valves are suitable for numerous applications including:
- Residential plumbing systems
- Industrial process control
- HVAC systems
- Water treatment plants
- Oil and gas pipelines
Stop Valve Features
- Bubble-tight shutoff capability
- Low torque operation
- Fire-safe design options
- Anti-static protection
- Blow-out proof stems
Stop Valve FAQ
What is the difference between a stop valve and a gate valve?
A stop valve is designed to completely stop the flow of liquid when closed, while a gate valve is primarily used for regulating flow. Stop valves provide better sealing and are more suitable for applications requiring complete flow shut-off. The design of a stop valve typically includes a disc that moves perpendicular to the seat, creating a tight seal when closed.
How often should stop valves be maintained?
Stop valves should be inspected annually and maintained every 2-3 years depending on usage conditions. Regular maintenance includes lubricating the stem, checking for leaks, and ensuring proper operation. In harsh environments or high-frequency applications, more frequent maintenance may be required to ensure optimal performance and prevent failures.
Can stop valves be installed in any orientation?
Most stop valves can be installed in various orientations, but it's recommended to install them with the stem vertical or at least 45 degrees from horizontal for optimal performance. Some specialized stop valves may have specific orientation requirements, so always consult the manufacturer's installation guidelines. Proper orientation ensures smooth operation and extends the valve's service life.
Installation Guidelines
- Always clean the pipeline before installation
- Ensure proper alignment with the pipeline
- Use appropriate sealing materials (Teflon tape or pipe dope)
- Tighten connections according to torque specifications
- Test for leaks before putting into service
Quality Standards
Our stop valves meet or exceed the following international standards:
- API 600
- ASME B16.34
- ISO 17292
- BS 1873
- ANSI B16.10
Choosing the Right Stop Valve
When selecting a stop valve, consider these factors:
| Factor | Consideration |
|---|---|
| Media Type | Choose materials compatible with the fluid |
| Pressure Requirements | Select appropriate pressure rating |
| Temperature Range | Ensure valve can withstand operating temperatures |
| Flow Rate | Size the valve according to required flow |
| Connection Type | Match with existing pipeline connections |
For over 20 years, our stop valves have been the preferred choice for professionals in various industries. The combination of superior materials, precise engineering, and rigorous testing ensures reliable performance in the most demanding applications.
Proper selection and installation of a stop valve can significantly impact the efficiency and safety of your fluid control system. Our technical team is available to assist with any specific requirements or application questions you may have regarding your stop valve needs.