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Series F101 Lug Type Butterfly Valve China Factory and Suppliers

High-performance Series F101 butterfly valves from a leading China factory. Compliant with MSS SP-67, BS5155 and API 609, available in size 1.5 to 48 inch. Trusted suppliers for wafer, lug and U-section bodies compatible with ANSI, DIN, BS and JIS flanges.



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The Series F101 Lug Type Butterfly Valve is a high-performance industrial flow control solution engineered for maximum reliability and efficiency. Designed for versatility, this valve features a robust lug-style body that ensures secure installation and superior structural support for piping systems across various demanding environments.

Integrating precision-engineered discs and a wide array of material combinations, the F101 series is optimized for diverse applications including HVAC systems, chemical processing, and water treatment. Whether operated via manual handles, gear operators, or automated pneumatic and electric actuators, it delivers seamless control and an extended service life with minimal maintenance.

Detailed Parameters

Size Range1½″ to 48″ Body MaterialsCast Iron, Ductile Iron, Stainless Steel, Carbon Steel
Disc MaterialsDuctile Iron, Stainless Steel, Al-Bronze Seat MaterialsNBR, EPDM, Neoprene, PTFE, Viton
Operation TypesHandle, Manual Gear, Electric, Pneumatic Actuators Pressure StandardsANSI 125/150, PN10, PN16, 10K
Stem MaterialsZinc Plated Steel, Stainless Steel (316, 410, 420, 416) Max TemperatureUp to 230°C (Viton) / 200°C (PTFE)
O-Ring MaterialsNBR, EPDM, Neoprene, Viton Bushing OptionsPTFE, Nylon, Lubricated Bronze

Key Advantages

Rugged Construction

Built with high-grade materials like ASTM A536 Ductile Iron to ensure long-term durability under high-pressure industrial conditions.

Low Maintenance

Engineered for quick disassembly, allowing rapid inspection, cleaning, and repair to significantly reduce operational downtime.

Precision Control

The precision-machined disc ensures smooth opening and closing, providing tight shut-off and efficient flow regulation.

Actuation Flexibility

Compatible with manual, pneumatic, or electric drives to adapt to any level of automation required by your facility.

Material Versatility

Wide selection of seat materials (PTFE, Viton, EPDM) to handle aggressive chemicals and extreme temperature ranges.

Secure Installation

The lug-style design provides superior support and a secure bolt-on connection to the pipeline for enhanced safety.

Product Gallery

Management Platforms

Inventory Control

Streamlined tracking of various sizes from 1½″ to 48″ to ensure immediate availability.

Quality Assurance

Strict adherence to ANSI and PN standards to guarantee leak-proof industrial performance.

Custom Configuration

Tailored material selection based on specific medium and temperature requirements.

Actuator Integration

Seamless synchronization between valve bodies and electric/pneumatic control systems.

Logistics Support

Global shipping standards for heavy-duty valve components to minimize lead times.

Technical Lifecycle

Comprehensive documentation for installation and long-term maintenance intervals.

Investment Return Comparison

MetricStandard Butterfly ValveSeries F101 Lug Valve
Installation SecurityModerate (Wafer)High (Lug-Style)
Maintenance EffortStandard DisassemblyRapid Access Design
Operational LifeAverageExtended (Premium Materials)
Application RangeLimitedBroad (Chemical/HVAC/Water)
TCO (Total Cost of Ownership)Higher due to wearLower via durability

Frequently Asked Questions

Q: What is the main difference between Lug and Wafer butterfly valves?

Lug valves have threaded inserts (lugs) that allow them to be bolted directly to the pipe flange, enabling dead-end service, whereas wafer valves are sandwiched between two flanges.

Q: Which seat material is best for high-temperature applications?

For high temperatures, PTFE (up to 200°C) and Viton (up to 230°C) are the recommended materials for optimal heat resistance.

Q: Can the F101 series be automated?

Yes, the Series F101 is compatible with both electric and pneumatic actuators for sizes ranging from 1½″ to 48″.

Q: What materials are available for the valve body?

The bodies are available in Cast Iron, Ductile Cast Iron, Stainless Steel (CF8, CF8M), and Carbon Steel (WCB) to suit different corrosion levels.

Q: How does temperature affect the elastomer seats?

At lower temperatures, elastomer seats may become harder, which typically results in an increase in the torque required to operate the valve.

Q: Is this valve suitable for chemical processing?

Yes, by selecting Stainless Steel bodies and PTFE or Viton seats, the F101 is highly effective for chemical and corrosive media handling.

Request a Technical Quote for Series F101 Valves

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