Our Manual Butterfly Valves are engineered for high-performance flow control, offering a reliable and cost-effective solution for industrial piping systems. Designed for precision and durability, these valves are manually operated via either a lever or a gear mechanism, ensuring seamless manual intervention without the need for complex external power sources.
Compared to pneumatic or electric actuators, the manual butterfly valve features a streamlined, simple structure that reduces maintenance overhead while maximizing operational efficiency. Whether you require quick quarter-turn operation or precision gear control, our valves are built to meet rigorous industrial standards for diverse fluid handling applications.
| Body Materials | Grey Cast Iron, Ductile Cast Iron, Stainless Steel 304/316, Carbon Steel | Disc Materials | Ductile Cast Iron (Nickel-plated/Nylon coated), SS 304/316, Aluminum Bronze |
|---|---|---|---|
| Stem Materials | Stainless Steel 410, 416, 304, 316 | Seat Materials | EPDM, BUNA-N, PTFE, Viton, Hypalon, Neoprene, Metal Seated |
| Pressure Ratings | CLASS 125, 150; PN10, PN16, PN25; 5K, 10K, 16K | Operation Types | Lever Operated, Gear Operated |
| Design Standards | API 609, BS5155, MSS SP-67/68, EN593 | Connection Type | Wafer, Lug, Flanged End |
| Applicable Media | Water, Oil, Gas, Corrosive Chemicals | Structure | Compact, Simple, Manual Drive |
Utilizing premium materials like Stainless Steel 316 and Ductile Iron to ensure long-term wear resistance.
Designed for rapid deployment with a simple flange-fitting process and minimal tooling requirements.
Fewer moving parts compared to automated valves, significantly reducing the risk of mechanical failure.
Small volume and lightweight design allowing for installation in tight spaces and congested pipelines.
Available in multiple seat materials (PTFE, Viton, EPDM) to handle various temperature and chemical ranges.
Eliminates the need for expensive power infrastructure, cables, and compressors required for automation.
Real-time tracking of valve classifications including Flange and Threaded types.
Strict adherence to API 609 and BS5155 standards for every manual unit.
Efficient logistics management for bulk industrial valve shipments worldwide.
Full traceability of metallurgy for Stainless Steel and Carbon Steel components.
Strategic buffering of Hot Products to ensure rapid lead times for clients.
Dedicated engineering guidance for valve selection and installation specs.
| Feature | Manual Butterfly Valve | Actuated Butterfly Valve |
|---|---|---|
| Initial Cost | Very Low | High (Actuator + Valve) |
| Energy Consumption | Zero | Continuous Electricity/Air |
| Maintenance Needs | Minimal | High (Seal & Motor Care) |
| Installation Speed | Fast/Simple | Slow/Complex |
| Operational Life | Long (Mechanical) | Dependent on Actuator Life |
A manual butterfly valve is a flow control device operated by hand. This category includes lever-operated valves for quick action and gear-operated valves for more precise control of larger diameters.
The primary advantages include a simpler structure, significantly lower procurement and maintenance costs, compact size, and the ability to function without an external power supply.
For corrosive media, we recommend Stainless Steel 316 for the body and disc, paired with PTFE or Viton seats to ensure chemical compatibility and leak prevention.
Ensure flanges are spaced correctly, set the disc to half-open during bolt insertion, avoid fitting gaskets between flanges, and only tighten nuts fully after verifying pipeline alignment.
Our valves support a wide range of international standards including CLASS 125/150, PN10/16/25, and JIS 5K/10K/16K to suit various industrial pressures.
Yes, many of our manual valves are designed with standard mounting pads that allow for the future installation of pneumatic or electric actuators.
Related Products
Call us on:
+86-311-86935302
+86-311-86935302
Email Us:
info@thriveonvalve.com
South of Huanmadian Village Town, Ningjin County, Xingtai, Hebei Province, China 
