Research: What is a Split-body Butterfly Valve?
A split-body butterfly valve is a type of industrial flow control device, characterized by a two-piece valve body design. This configuration allows easier maintenance, precise alignment of internal components, and enhanced sealing performance — making it a reliable choice in demanding applications.
Structure and Features
- The split-body construction means the valve body is manufactured in two halves, bolted together. This design offers key benefits:
- Simplified assembly and disassembly: Maintenance is more convenient without disturbing the pipeline.
- Improved sealing: The split-body design ensures precise disc and seat alignment, reducing the risk of leakage.
- Versatile material compatibility: Enables a wide range of body and seat material combinations depending on the working medium and environment.
Core components typically include:
- Valve Body (Split Type): Offers structural stability and easy access.
- Disc: Rotates to regulate flow; available in materials like stainless steel or duplex alloys.
- Seat: Ensures tight shut-off and varies based on media compatibility (e.g., EPDM, PTFE, NBR).
- Stem and Bearings: Provide durable, low-friction operation even under high-cycle use.
Functions and Applications
- Split-body butterfly valves are designed for on/off or modulating service, offering reliable performance in low to medium pressure systems. Their compact design and ease of operation make them ideal for:
- Water and wastewater treatment
- HVAC systems
- Food and beverage processing
- Chemical and petrochemical industries
- Pulp and paper plants
They can be operated manually or automated via electric, pneumatic, or hydraulic actuators.
Seallon SB71-P Series – Trusted Split-body Butterfly Valve Solution
For industries demanding performance, reliability, and easy maintenance, the Seallon SB71-P Series split-body butterfly valve stands out. Engineered with precision and built for harsh environments, this series offers:
- High-strength ductile iron, steel or stainless steel body with anti-corrosive coatings
- Replaceable seats in PTFE, EPDM, or Viton to suit different applications
- ISO 5211 mounting flange for quick actuator integration
- Zero-leakage bi-directional sealing, even under fluctuating pressure
- Pressure ratings up to PN16 / Class 150, suitable for most industrial systems
Why Choose Seallon?
With over 30 years of expertise in industrial valve manufacturing, Seallon combines innovation with international quality standards. Our SB71-P series is trusted by engineers worldwide for its:
- Superior reliability
- Competitive pricing
- Fast delivery and responsive support
