Industrial Plug Valves — Manufacturer, Supplier & Stockist
Plug valves use a cylindrical or tapered plug with a through-hole (port) that rotates within the valve body to control flow. Navjivan Valves supplies sleeved, lubricated and pressure-balanced lubricated plug valves for tight, reliable shut-off in demanding process applications.
Product Overview
Plug valves provide a straight-through flow path when open, giving low pressure drop similar to a ball valve, with a simple quarter-turn action. Because the plug makes broad surface contact with the body or sleeve, plug valves offer very reliable, bubble-tight shut-off and are widely specified in slurry, chemical and hydrocarbon services where dependable isolation is critical.
Types of Plug Valves
Sleeved Plug Valves
A flexible sleeve or liner (rubber, PTFE or elastomer) surrounds the plug, providing a tight seal between the plug and body without the need for lubrication — well suited to chemical and corrosive services.
Lubricated Plug Valves
A sealant is injected between the plug and body to lubricate the seating surfaces and renew the seal, commonly used in oil & gas and hydrocarbon pipeline applications.
Pressure-Balanced Lubricated Plug Valves
A refined lubricated design that balances pressure across the plug to reduce operating torque, making the valve easier to operate even in high-pressure service.
Specifications
| Testing Standard | BS 5146 |
|---|---|
| Size Range | 2" – 16" (DN50 – DN400) |
| Pressure Class | 150 – 2500 |
| Body Material | WCB, WCC, WC6, WC9, C5, C12, LCB, LCC, CF8, CF8M |
| Seat | A105 + 13% Cr, A105 + Stellited |
| Trim | API Trim No. 1 to 16 |
| Face to Face | As per ASME B16.10 |
| End Connection | ANSI B16.5 (Raised Face Flanged), ANSI B16.25 (Butt Weld) |
| Operation | Manual, Gear Operated |
Specifications reflect the products currently supplied by Navjivan Valves. Exact availability may vary by size and material — please confirm with our team for your specific requirement.
Applications
- Oil & Gas Pipelines
- Chemical Processing
- Slurry & Mining
- Water Treatment
- Petrochemical Plants
- Gas Distribution
Materials of Construction
Plug valve plugs and bodies are available in carbon steel, stainless steel and alloy materials, with sleeve materials such as rubber, PTFE or other elastomers selected according to the process fluid.
Key Features
- Broad plug-to-body contact for reliable, bubble-tight shut-off
- Straight-through port design gives low pressure drop when open
- Sleeved designs avoid the need for periodic lubrication in chemical service
- Pressure-balanced designs reduce operating torque on larger valves
- Simple quarter-turn operation for fast isolation