Wafer Type Split Body Design Butterfly valve
SUN’s wafer-type split-body butterfly valve is a highly effective valve used for controlling the flow of fluids in a variety of pipeline applications. It combines a compact design with ease of installation, making it a popular choice in industries such as water treatment, chemical processing, and HVAC systems.
Water Treatment:
Commonly used in potable water and wastewater pipelines.
HVAC:
For air flow control and fluid regulation in heating and cooling systems.
Chemical Processing:
For handling corrosive and aggressive chemicals.
Mining and Industrial Applications:
Often found in systems handling slurries or abrasive fluids.
Compact Design:
The wafer-type design reduces the weight and space required for installation, making it ideal for constrained spaces.
Ease of Installation:
These valves can be quickly and easily bolted between flanges, requiring fewer bolts than other valve types.
Cost-Effective:
Wafer-type valves generally have a lower cost due to their design, making them a budget-friendly solution.
Maintenance:
The split-body design makes the valve easier to maintain, with simplified access to internal components.
Versatility:
They are used in a variety of industries, from water treatment to HVAC systems.
| Specification | Details |
|---|---|
| Valve Size | 1″ (25mm) to 48″ (1200mm), larger sizes available for special apaplications |
| Pressure Rating | PN10 (10 bar / 145 psi), PN16 (16 bar / 232 psi), PN25 (25 bar / 365 psi) ANSI 150 (150 psi), ANSI 300 (300 psi) |
| Temperature Range | Rubber-lined valves: -10°C to 80°C (14°F to 176°F) Metal-seated valves: -50°C to 450°C (-58°F to 842°F) |
| Materials of Construction | Body: Cast Iron, Ductile Iron, Stainless Steel (304, 316), Carbon Steel Disc: Stainless Steel, Aluminum Bronze, Corrosion-resistant alloys Seat: EPDM, NBR, PTFE, Viton, Metal (high-temp) Stem: Stainless Steel or Brass |
| Actuation | Manual: Lever or gear-operated Automated: Electric, Pneumatic, Hydraulic actuators available |
| Sealing Type | Soft Seated (EPDM, NBR, PTFE) for standard use Metal Seated for high temperatures and abrasive media |
| End Connections | Wafer design, installed between flanged pipe sections |
| Leakage Rate | Soft-seated valves: Class VI (bubble-tight) Metal-seated valves: Class V or Class VI |
| Flow Characteristics | Linear flow characteristic (proportional to valve opening) Some valves may have equal percentage or on/off control |
| Compliance & Standards | ISO 9001, CE Marking (EU), API 609 for design, testing, and manufacturing |
Note: These are general guidelines and may be tailored depending on specific project requirements.
A wafer-type butterfly valve is distinguished by its body design, which does not have flanges. Instead, the valve is sandwiched between two flanges in the piping system. This design simplifies installation and reduces the space required for the valve.
Split-Body Construction:
The split-body design allows the valve body to be separated into two parts, facilitating easier maintenance and repair. This design enhances the durability and the sealing ability of the valve, especially in high-pressure systems.
Butterfly Valve Mechanism:
The valve features a rotating disc (resembling a butterfly), which controls the flow of fluid by rotating around its axis. In the open position, the disc aligns with the flow path, allowing fluid to pass. When the valve closes, the disc rotates 90 degrees to obstruct the flow.