Butterfly valves are quarter-turn valves that control fluid flow through a rotating disc. Featuring a compact structure, low weight, and fast operation, they are widely used in water treatment, chemical, power, petroleum, and HVAC systems. Available in wafer, flange, welded, and clamp types, with manual, electric, pneumatic, or hydraulic actuators. Soft and metal sealing options ensure reliable performance across various pressures and temperatures, offering efficient and economical flow control for industrial applications.
Key Features & Advantages
• Compact & lightweight: 30% smaller and lighter than ball valves.
• Quick operation: Full open/close within 90°, under 30 seconds.
• Low pressure drop: Flow resistance ≤0.1 MPa for energy saving.
• High pressure tolerance: Soft seal ≤1.6 MPa; hard seal ≤6.4 MPa.
• Wide temperature range: EPDM ≤120 °C; PTFE ≤180 °C; metal ≤600 °C.
• Reliable sealing: STL alloy seat + O-ring prevent leakage.
• Easy maintenance: Seal replacement reduces downtime by 50%.
| Item | Details |
| Main Products | Butterfly Valve / Ball Valve / Gate Valve / Globe Valve / Check Valve |
| Business Type Supported | OEM, ODM, distributors, agents, wholesalers, engineering companies, project contractors |
| MOQ | 1-100 units |
| Customization Options | Trademarks, materials, colors, pressure ratings, flange standards, packaging options, etc. |
| Application Industries | Water supply and drainage, petroleum, chemical, power, gas, HVAC, irrigation, papermaking, pharmaceuticals, new energy |
| Lead Time | 30-60 days (after contract signing and deposit receipt) |
| Quality Standards | API/CE/ISO/WRAS/EAC/customer standards available |
| Sample Policy | Test samples available |
| Payment Methods | T/T (30% deposit, balance before shipment)/LC negotiable |
| After-Sales Service | 12-month warranty, online technical support |
A butterfly valve is a type of throttling valve that controls the flow of fluids or regulates flow through the rotation of a circular disc.
Its core structure includes:
Valve body: A symmetrical design that supports various connection types, including wafer, flange, and welded connections. Materials include cast iron, cast steel, stainless steel, and UPVC.
Valve stem: Connects the disc to the actuator and must be corrosion-resistant and high-strength to ensure long-term stable operation.
Disc: A circular, thin structure commonly made of stainless steel, copper alloy, or nylon. Hard alloys (such as STL alloy) can be overlaid on the surface for improved wear resistance.
Seals: These include the seat ring and O-ring, made of elastic materials such as EPDM and PTFE (soft seals) or metal-to-metal construction (hard seals) to prevent leakage.
Actuator: Supports manual, electric, pneumatic, or hydraulic operation to accommodate diverse operating conditions.
1. Regular Inspection
Appearance Inspection: Check the valve body for rust, paint peeling, deformation, and other conditions, and repair them promptly.
Connections: Check for loose bolts and stuffing box leaks to ensure tightness.
Openness Indicator: Verify that the valve opening is consistent with the control signal to prevent improper operation.
2. Lubrication and Cleaning
Transmission Components: Regularly lubricate the valve stem, bearings, and gears to reduce wear.
Valve Interior: Disassemble and clean the valve cavity, valve core, and sealing surfaces to prevent dirt accumulation.
3. Seal Maintenance
Seal Surface Inspection: Repair minor wear or scratches to restore sealing performance.
Seal Replacement: Regularly replace O-rings or valve seats based on usage.
Electric Actuator Maintenance
4. Power Supply and Line: Check voltage stability and line connection reliability.
Motor and Reducer: Monitor operating status and replace worn gears or bearings promptly.
Travel Limit and Torque Protection: Ensure valve operation within a safe range to prevent overload.
Tianjin Dingliu valve Industry Co., Ltd. is a high-tech enterprise specializing in the valve and automation industry.
Privacy Policy | SiteMap Copyright Tianjin Dingliu valve Industry Co., Ltd.
Optimized by Seraphinite Accelerator
