Product
Centerline Flanged Butterfly Valve
Centerline Flanged Butterfly Valve is designed for reliable flow control and shut-off in water treatment, HVAC, power, and industrial pipeline systems. With a concentric disc design, it offers low operating torque, excellent sealing performance, compact structure, and easy maintenance. The flanged connection ensures simple installation and long service life.
Specification
Size: NPS 2”～48”/DN50～DN1400
Pressure: 150LB /PN1.0～1.6M/Pa
Material: Water, oil, gas, and various corrosive media
Temperature: -10～150℃
Connection: Flange
Design: API 609, MSS SP-67
Face To Face: API 609, MSS SP-67, DIN3202, BS EN558-1
Pressure Test: API 598
Flange Drilling: ANSI B16.1 class125, BS4504 PN10/PN16, DIN2501 PN10/PN16
Top Flange: ISO5211
Main Parts Material:
| Part | Body | Disc | Stem |
| Material | Ductile Iron, Cast Iron + Rubber (NBR, EPDM) | Ductile Iron, Bronze, Stainless Steel | Stainless steel |
Features :
- Both sides of sealing performance are choiceness and the torque is small.
- Flow curve tending to straight line. Excellent regulated performance.
- Flange connection installed easily. Both vertical and horizontal installation are all right.
- Have multiplicity-sealing materials for user to choose.
- The valves can be used for pipe nozzle and have reliable performance.
- Seat sealing and body are combined very well, with a long lifetime.