10″-150LB-Wafer High Performance Butterfly Valves

10″ – 150LB – Wafer High Performance Butterfly Valve

Technical Data Sheet

1. General Information

2. Design & Manufacturing Standards

3. Main Materials (Typical – can be customized)

4. Outline Dimensions & Weight

 Dimensions and weights above are typical references and may vary by manufacturer. Final dimensions to be confirmed with manufacturer’s drawing. API 609 Category B is for double offset high performance valves; Category A is for concentric valves – face-to-face dimensions differ.

5. Pressure-Temperature Rating (ASME B16.34 – WCB/CF8M body)

Note: Pressure ratings for high performance butterfly valves are generally based on the body material. Some manufacturers offer valves with a Cold Working Pressure (CWP) rating of 285 psi or 275 psi. The maximum working temperature for RPTFE/PTFE seats is typically 230°C to 260°C, well below the body’s maximum allowable temperature. With metal seats, the temperature range can be extended to -29°C ~ +425°C.

6. Performance Data

7. Double Offset Design Principle

The double offset design is an improvement over the single offset butterfly valve. The stem axis is offset from both the disc center and the valve body centerline (double eccentric). This design offers significant advantages:

• Rapid disengagement – The sealing surfaces separate quickly during opening, reducing unnecessary compression and rubbing.
• Long service life – Significantly reduces seat wear, extending seat life.
• Low torque – Low opening/closing torque allows use of more economical actuators.
• Bi-directional sealing – Provides tight shut-off in both directions, meeting full-rated bi-directional zero leakage requirements.
• Fire safe design – The double offset construction combined with metal seats (e.g., Inconel 625 hardfacing) can meet API 607 fire test requirements.

8. Actuation Options

9. Key Features

• Double offset design – Sealing surfaces disengage quickly during opening, minimal wear, low operating torque, long life
• Bi-directional zero leakage – Suitable for stringent shut-off applications
• Wafer connection – Compact construction, easy installation, lightweight
• Blow-out proof stem – Compliant with API 609 for safety
• Anti-static device – Provides electrical continuity between disc, stem and body
• Field replaceable seat – Seat can be replaced without removing the stem and disc, facilitating maintenance
• ISO 5211 top flange – Standardized actuator mounting interface for easy automation
• Fire safe design (optional) – Compliant with API 607; retains some sealing integrity after fire exposure

10. Ordering Information

Please provide the following when ordering:

1. Valve size (10″), pressure rating (Class 150)
2. End connection: Wafer
3. Body material (Carbon Steel WCB / Stainless Steel CF8M / other)
4. Disc material
5. Seat material (RPTFE / PTFE / PEEK / metal seated)
6. Sealing surface material
7. Actuation type (gear operator / electric / pneumatic)
8. Media name, temperature, and pressure
9. Special requirements (fire-safe API 607, anti-static, low emission packing ISO 15848, etc.)
10. Third-party inspection requirement (BV, DNV, TÜV, etc.)

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.