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Double eccentric stainless steel butterfly valve

Double Eccentric Stainless Steel Butterfly Valve** is a high-performance flow control device designed for demanding industrial applications. Its unique "double eccentric" design (also known as a double-offset butterfly valve) ensures minimal wear, reduced friction, and superior sealing capabilities.
type: Lug
manufacturer:  Wuxi ideal valve
diameter: DN40-1200
nominal pressure: 150LB,300LB
max. working pressure: 64bar
Body/Disc: stainless steel
Seat:RPTFE,PTFE
media: liquid and gaseous media
temperature: -30°C up to +200°C
actuation: Gear box
application: for ordinary usage
Availability:
Quantity:

 **Performance Features**

1. **Double Eccentric Design**:

- Two offsets (shaft and disc) reduce friction during operation, extending valve lifespan.

- Eliminates seat wear even after prolonged use.

2. **Stainless Steel Construction**:

- 316/304 stainless steel ensures resistance to corrosion, rust, and chemical erosion.

- Suitable for acidic, alkaline, and high-salinity environments.

3. **Bidirectional Sealing**:

- Zero-leakage performance in both flow directions (Class VI sealing per ANSI/FCI 70-2).

4. **High-Temperature Tolerance**:

- Operates reliably in temperatures ranging from **-40°C to 600°C** (-40°F to 1112°F).

5. **Low Torque Requirement**:

- Optimized disc geometry reduces actuation force, enabling cost-effective automation.


**Advantages**

- **Long Service Life**: Reduced wear due to double eccentricity lowers replacement frequency.

- **Cost-Efficient**: Minimal maintenance and energy savings from low-torque operation.

- **Versatility**: Compatible with liquids, gases, and semi-solid slurries.

- **Compact & Lightweight**: Saves space and simplifies installation compared to gate/globe valves.

- **API/ANSI Compliance**: Meets international standards for safety and performance.


**Application Scenarios**

- **Oil & Gas**: Pipeline isolation, refinery processes, LNG terminals.

- **Water/Wastewater**: Pump stations, desalination plants, stormwater management.

- **Chemical Processing**: Acid/alkali transfer, corrosive fluid control.

- **Power Generation**: Cooling systems, steam lines, turbine bypass.

- **Marine/Shipbuilding**: Seawater handling, ballast systems.


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**Technical Specifications**

| Parameter               | Details                                  |

|-------------------------|------------------------------------------|

| **Size Range**          | 2" to 72" (DN50 to DN1800)               |

| **Pressure Rating**     | ANSI 150# to 600#, PN10 to PN100         |

| **Temperature Range**   | -40°C to 600°C (-40°F to 1112°F)         |

| **Body Material**       | 316/304 Stainless Steel                  |

| **Seat Material**       | Reinforced PTFE, Metal-to-Metal          |

| **Actuation Options**   | Manual, Pneumatic, Electric, Hydraulic   |

| **Standards**           | API 609, ANSI B16.34, ISO 5752           |


 **Maintenance Guidelines**

1. **Routine Inspection**:

- Check for leaks, disc alignment, and seal integrity every 6–12 months.

2. **Lubrication**:

- Apply food-grade grease to the stem/shaft annually (for manual valves).

3. **Seat Replacement**:

- Replace PTFE/metal seats every 5–8 years, depending on service conditions.

4. **Actuator Care**:

- Ensure pneumatic/electric actuators are dust-free and moisture-protected.


 **Why Choose Our Valve?**

Our double eccentric stainless steel butterfly valves combine cutting-edge engineering with premium materials to deliver unmatched reliability. With certifications from **API, ISO, and CE**, they are trusted by global industries for critical applications. Boost operational efficiency, reduce downtime, and meet stringent environmental regulations with a valve designed for the future.

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