The butterfly valve is used to isolate or regulate the flow of fluid within a pipe. It has a simple structure and allows for quick operation with a 90° control angle. The valve has many advantages compared to other types of valves, especially when it comes to larger sizes, as the butterfly valve is lightweight and space-saving.

Body: Stainless Steel ASTM A351 CF 8M

Shaft: Stainless Steel ASTM AA182 F316

Disc: Stainless Steel ASTM A351 CF 8M

Seat: PTFE

Temperature: -25°C up to 220°C

Tolerances: ISO 2768-M

Face to face: EN 558 Series 20

                       ISO 5752 Series 20

                       API 609 Table 1

                       BS 5155 Series 4

Pressure test according to standards: API 598, ISO 5208: Body: 1.5×PN Seat: 1.1×PN

Tightness test: ISO 5208, Rate A API 598

Advantages:

• The product is applicable in various fields.
• Ensures tight sealing.
• Sealing gasket made of PTFE plastic.
• The fluid does not come into contact with the shaft and body of the valve.
• Fast opening and closing process.
• No fluid accumulation inside the valve cavity.
• Compact design, easy to install.
• Two-piece valve body for easy maintenance.
• Flexible operation with various actuators (lever, gearbox, pneumatic, electric, hydraulic, etc.).
• Low operating torque.
• Design structure with minimal pressure loss.

Applications:

Flow coefficient (Cv): Cv = 1.16 x Kv

Where Kv is the amount of water flowing through a valve (m³/h) with a pressure differential of 1 bar at 20°C.

The flow rate will increase linearly with the valve opening, as shown in the following chart:

Dimension table: