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Wholesale Low - Torque Flange Type Butterfly Valve Supplier, Factory
Product Description
Key Features & Applications
Excellent bidirectional sealing performance, low torque value, and superior machining performance of parts.
Flow characteristics tend towards a straight line, providing precise and reliable regulation performance.
Flange connection offers straightforward installation, suitable for both vertical and horizontal layouts.
Comprehensive selection of sealing auxiliary materials available to accommodate diverse working needs.
Reliable design allows the valve to be operated effectively as a venting valve at pipe ends.
The valve seat sealing ring is organically integrated with the valve body, delivering a prolonged service life.
Superior anti-erosion capability, engineered for severe operating environments, medium interception, and regulation.
Product Performance Specifications
| Nominal Pressure | Shell Pressure | Sealing Pressure | Applicable Medium | Temperature |
|---|---|---|---|---|
| 1.0 / 1.6 / 2.5 MPa | PN × 1.5 times | PN × 1.1 times | Freshwater, wastewater, seawater, air vapor, food, various oils, etc. | -20 ~ 150℃ |
Main Component Materials
| Component Name | Materials |
|---|---|
| Valve Body | Ductile iron lined with rubber, Stainless steel lined with rubber, Carbon steel lined with rubber, Copper lined with rubber, Ductile iron lined with PTFE, Stainless steel lined with PTFE, Carbon steel lined with PTFE, Copper lined with PTFE, etc. |
| Shaft Sleeve | Lubricating bronze, PTFE |
| Valve Shaft | Stainless steel, Carbon steel electroplating, Alloy steel 17-4, 420 steel, 416 steel |
| Valve Plate | Galvanized ductile iron plate, Nylon coated ductile iron plate, Ductile iron lined PTFE plate, Stainless steel plate, Dual phase steel plate, Carbon steel plate, Copper plate |
| Pin | Stainless steel, Monel alloy, Hastelloy alloy, etc. |
| O-Ring | FPM, NBR |
Packaging & Dispatch
Frequently Asked Questions (FAQ)
What types of media can this valve handle?
The valve is suitable for a wide range of media including freshwater, wastewater, seawater, air vapor, food-grade processing substances, and various oils.
What is the operating pressure and temperature range?
The valve supports nominal pressures of 1.0, 1.6, and 2.5 MPa, with shell test pressure rated at PN × 1.5 times and sealing test pressure at PN × 1.1 times. The operational temperature range spans from -20℃ to 150℃.
Can the valve be installed in any orientation?
Yes, the flange connection enables flexible installation and can be securely mounted in both vertical and horizontal piping layouts.
What lining and material options are available for harsh or corrosive environments?
The valve body and plate can be lined with Rubber or PTFE, paired with base metals such as ductile iron, stainless steel, carbon steel, and dual-phase steel, alongside high-grade pins made from Monel or Hastelloy.
How does the design ensure a long operational lifespan?
The valve seat sealing ring is organically integrated into the valve body. This structure reduces wear, ensures low torque, prevents internal erosion, and delivers dependable bidirectional shut-off over extended operational cycles.
