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Before selecting any valve or pipe fitting, consider the following parameters:
Type of Medium (e.g. water, steam, oil, gas, corrosive fluids)
Temperature Range
Pressure Rating
Flow Rate Requirements
Installation Space & Orientation
Manual vs. Automated Operation
| Valve Type | Features / Applications |
|---|---|
| Gate Valve | Fully open/closed, used for isolation. Low pressure drop. Not suitable for throttling. |
| Globe Valve | Good for flow regulation. Higher pressure loss. Ideal for smaller pipelines. |
| Ball Valve | Quick shut-off, excellent sealing. Suitable for gases and liquids. Not for throttling. |
| Butterfly Valve | Compact design, ideal for large-diameter and low-pressure systems. Common in water and HVAC. |
| Check Valve | Prevents backflow. Used after pumps, in vertical lines. Includes swing, lift, and wafer types. |
| Safety Valve | Releases excess pressure automatically. Used in boilers, pressure vessels. |
| Solenoid Valve | Electrically operated. Used in automated control systems (e.g., water treatment, pneumatics). |
| Fitting Type | Purpose |
|---|---|
| Flanges | Detachable connection. Useful for maintenance and valve replacement. |
| Elbows | Change the direction of flow (typically 45° or 90°). |
| Tees/Crosses | Branch or combine fluid flow. |
| Reducers | Connect pipes of different diameters. |
| Couplings/Unions | Join or quickly disconnect pipes. |
| Expansion Joints | Absorb thermal expansion or vibration. Common in steam or hot water systems. |
| Strainers/Filters | Remove debris from the flow. Protect valves and equipment. |
| Material | Suitable Medium | Temp Range | Features |
|---|---|---|---|
| Cast Iron | Water, Air | -10°C~200°C | Low cost, used in low-pressure systems. |
| Carbon Steel | Oil, Steam, Water | -29°C~425°C | Strong and durable, suitable for medium-high pressure. |
| Stainless Steel | Corrosive fluids | -196°C~600°C | High corrosion and temperature resistance. |
| Brass/Copper | Water, Gas | -40°C~200°C | Good thermal conductivity, common in residential plumbing. |
| PVC/UPVC | Cold Water, Mild Chemicals | 0°C~60°C | Lightweight, economical, for low-pressure cold water. |
Leave access space for maintenance and disassembly, especially with flanged connections.
Check flow direction during installation (e.g., check valves, strainers, globe valves).
Use ball valves or electric valves for frequent on/off operation.
Account for thermal expansion in high-temperature systems.
Inspect regularly for leaks, wear, and sealing performance.
Advantages of Stainless Steel Ball Valves: 1. C
The 316 stainless steel 3-piece ball valve offer
Structural features 1. There is no friction in
Contact: Sales Team
Phone: +86(027)8476 6368
Tel: +86(027)8476 6368
Email: sales@royal-cn.com
Add: Xinghong Road, Tonghaikou Town, Xiantao City, Hubei Province, China