NIAGARA Butterfly Valve – Models FFB20A / FFB21A / FFSD30A / FFSD31A / FFS40A / FFS41A

Description

NIAGARA Butterfly Valve – Models FFB20A / FFB21A / FFSD30A / FFSD31A / FFS40A / FFS41A
This series of wafer-type butterfly valves is designed for installation between ANSI B16.1 Class 125 flanges.
The valves generally conform to MSS SP 67, ensuring reliable flow control, easy operation, and consistent performance across various industrial and commercial systems.
Constructed from ductile iron, they provide exceptional durability, corrosion resistance, and strength.
The range offers multiple disc material options – ductile iron, stainless steel, or aluminium bronze – combined with EPDM or Nitrile seat liners, making them adaptable to diverse service conditions.
The 420 stainless steel shaft guarantees superior torque resistance and long operational life.

Technical Specifications:

• Size: 50mm to 200mm

• Pressure Rating: ANSI Class 125

• Material: Ductile Iron

• End Connections: Compatible with ANSI B16.1 Class 125 flanges

Features:

1. Wafer type designed for use with ANSI B16.1 Class 125 flanges

2. Built in compliance with MSS SP 67 design standards

3. High-strength ductile iron body for durability and long life

4. Optional disc materials (DI / SS / Aluminium Bronze) for different media

5. EPDM or Nitrile liners for reliable sealing and chemical compatibility

6. 420 stainless steel shaft for superior mechanical strength

7. Compact design ideal for limited space installations

8. Low operating torque and easy maintenance

Applications:
Ideal for water distribution, HVAC, industrial piping, and general flow control systems, especially where ANSI Class 125 flange compatibility is required.