Stainless Steel Butterfly Valves Description
Stainless steel butterfly valve is a valve made of stainless steel (such as 304, 316L, etc.), which is connected to the pipeline system through flange or clamp connection, and uses the disc-shaped butterfly plate to rotate around the axis to realize the opening and closing of the medium or flow regulation. Its core components include:
Valve body and butterfly plate: stainless steel material provides corrosion resistance, the butterfly plate is a disc-shaped structure, and the rotation angle is usually 0~90°.
Sealing structure:
Soft seal: nitrile rubber, polytetrafluoroethylene (PTFE), etc., suitable for low temperature (-20℃~150℃) and non-corrosive media.
Hard seal: metal to metal (such as alloy steel, Stellite alloy), high temperature (≤550℃) and high pressure (≤16Bar).
Drive mode: supports manual, electric, pneumatic or worm gear transmission.
Stainless Steel Butterfly Valves Specification
| Mode | Type | Features | Applications |
|---|---|---|---|
| Drive Mode | Electric stainless steel butterfly valve | Angular-turn electric actuator (0~90° rotation), supports remote control, and the diameter can reach DN1000. | Large flow industrial systems (such as high temperature steam) |
| Pneumatic stainless steel butterfly valve | Driven by pneumatic actuator, it has fast response speed and is suitable for flammable and explosive environments. | Chemical and energy fields | |
| Manual stainless steel butterfly valve | Handwheel or handle operation, simple structure and low cost | Medium and low pressure pipelines (such as water treatment) | |
| Sealing Mode | Multi-layer metal hard seal butterfly valve | Triple eccentric structure, metal-to-metal seal, resistant to wear and particle media | High temperature and high pressure (such as metallurgy, electricity) |
| Soft seal butterfly valve | PTFE or rubber seals, low leakage level (ANSI Class VI). | Food and pharmaceutical clean systems |
Stainless Steel Butterfly Valves
Selection points
Working parameters:
Pressure: Conventional models withstand pressure of 1.0~1.6MPa (PN10~PN16), and high-pressure models can reach 16Bar.
Temperature: Soft seals are suitable for -20℃~150℃, and hard seals can reach 550℃.
Medium adaptation: Corrosive media require 316L stainless steel or duplex steel valve bodies.
Particle-containing fluids are preferably hard seals or multi-layer metal seals.
Drive mode:
Electric or pneumatic is selected for remote control scenarios, and manual is suitable for low pressure and small diameter.
Maintenance recommendations
- Seal inspection: Check the wear of hard seals every 2 years, and replace soft seals every 1~2 years.
- Lubrication and maintenance: Fill the valve stem and transmission parts with high-temperature grease every 6 months.
- Operation specification: Avoid forced rotation exceeding 90° to prevent butterfly plate deformation.
Hot Tags: stainless steel butterfly valves, China stainless steel butterfly valves manufacturers, suppliers, factory, export butterfly valves, distribution of butterfly valves, Butterfly Control Valve, butterfly swing check valve, flanged butterfly valve, industrial butterfly valves