Double Flanged Center Line Butterfly Valve
Model No.: D41X

Nominal Diameter: 40-1200mm

Nominal Pressure: 1.0/1.6/2.0/2.5MPa

1. Good performance of sealing in both directions, small torque.
2. Flow curve tending to straight line. Excellent regulation performance.
3. Flange connection for convenient installation, suitable for vertical and horizontal type.
4. Variety of sealing materials.
5. The valve can be used as air release valve at pipe end, reliable performance.
6. The integration of seat ring and body brings long service life.
Materials:

Body: CI, DI, CS, SS.

Seat: EPDM, PTFE, Buna, Hypalon, Viton, Neoprene.

Disc: ALB, Monel, CF8M, WCB, Ductile Iron.

Stem: PTFE, Cr13, SS416, SS316, Carbon Steel.



Standard:

Design Standard: ANSI, AWWA C504.

End Flange: DIN, ANSI, BS, ISO, JIS.

Top Flange: ISO5211

Face to Face: BS5155 Short, ISO5752(Series 13), DIN 3202 F16

Test & Check: API598

1) Working Temperature: -30C~120°C

2) Pressure: DN40-600 PN1.0/1.6MPa (150/200PSI); DN700-1200 PN1.0MPa (150PSI)

3) Applicable Medium: fresh water, sea water, sewage, air, vapor, food, medicine, acids, salt, alkalis, etc.

4) Materials:

Body: CI/DI/WCB/CF8M/CF8/ALB.

Disc: DI/ALB/Rubber lined Disc/1.2501/1.4529/CF8/Hastelloy.

Stem: 416/304/431/17-4PH.

Seat: NBR/Hypalon/EPDM/Neoprene/NR/ Wear-Resistant EPDM/ Viton.



Standard:

1) End Flange: ANSI B16.1, EN1092, AS2129

2) Top Flange: ISO5211

3) Face to Face: ANSI B 16.10