Butterfly Valves
What are Butterfly Valves?
Butterfly valves are quarter-turn flow control devices that regulate or isolate fluids using a rotating disc. These valves are compact, lightweight, and suitable for applications requiring quick shut-off.
Asiad Steel Industries is a trusted manufacturer, supplier, and exporter of high-quality butterfly valves used across various sectors. They provide reliable sealing, cost-efficiency, and easy integration in both manual and automated systems.
Key Features
- Quarter-turn operation – Enables fast opening and closing
- Compact & lightweight – Easy to install and space-saving
- Tight shut-off – Ideal for both liquid and gas flow control
- Low pressure drop – Ensures smooth, unrestricted flow
- Available in multiple materials – Including SS, carbon steel, and PTFE-lined
Types of Industrial Butterfly Valves
Butterfly-valves-PN10
Specifications
Mechanical Properties
Chemical Composition
Equivalent Grades
Weight Chart
Specifications
| Parameter | Details |
|---|---|
| Sizes | 2″ to 48″ (DN50 – DN1200) |
| Pressure Ratings | PN10, PN16, PN25, Class 150 / 300 |
| End Connection | Wafer, Lug, Flanged |
| Material Options | SS304, SS316, Cast Iron, Ductile Iron |
| Disc Material | SS, Bronze, Nylon-coated, Aluminum-Bronze |
| Seat Material | EPDM, NBR, PTFE, Metal |
| Standards | API 609, EN 593, ISO 5752 |
| Property | Value |
|---|---|
| Tensile Strength | 450 – 700 MPa |
| Yield Strength | 250 – 450 MPa |
| Elongation | 20% – 30% |
| Hardness | 120 – 220 HB |
| Temperature Range | -20°C to +200°C (Material-based) |
| Standard | Equivalent Grade |
|---|---|
| ASTM | A351 CF8 / CF8M |
| DIN | 1.4301 / 1.4401 |
| EN | X5CrNi18-10 / X2CrNiMo17-12-2 |
| JIS | SUS 304 / SUS 316 |
| Element | Composition (%) |
|---|---|
| Carbon (C) | ≤ 0.08 |
| Manganese | 0.5 – 2.0 |
| Silicon | 0.15 – 0.80 |
| Chromium | 18.0 – 20.0 (for SS) |
| Nickel | 8.0 – 10.5 (for SS 304/316) |
| Molybdenum | 2.0 – 3.0 (for SS 316) |
| Iron | Balance |
| Valve Size (inches) | Type | Weight (kg) |
|---|---|---|
| 2″ | Wafer Type | 4.5 |
| 4″ | Lug Type | 11.0 |
| 6″ | Flanged | 23.0 |
| 8″ | Flanged | 35.0 |
| 12″ | Flanged | 65.0 |
Applications of Industrial Butterfly Valves
Construction &
Infrastructure
Automotive & Heavy
Equipment
Manufacturing &
Fabrication
Medical & Laboratory
Equipment
Electrical &
Electronics Assembly
Oil, Gas & Petrochemical
Installations
Do you have questions?
What makes butterfly valves ideal for large-diameter pipes?
Their compact design and low torque operation make them cost-effective and easy to operate in large pipeline systems.
Can butterfly valves be automated?
Yes, they can be operated with pneumatic or electric actuators for remote and automated control.
What types of fluids are suitable for butterfly valves?
They handle water, air, gas, chemicals, slurries, and even semi-solids effectively.
How do I select the right seat material?
Seat material depends on the media type, pressure, and temperature. PTFE is chemical-resistant; EPDM suits water systems.
