Flanged Butterfly Vlave with Concentric & Single Eccentric & Double Eccentric & Three Eccentric

Professional Design:
When initating the rotary opening movement the disc is off-seated after only few degree of opening movement and there is very little wear and tear between seat ring and disc

Body surface welding Brass when DN >700(see the picture),Our factory car also manufacture extension stem butterfly valve, butterfly valve of DN1800 extension stem lengthened 16.5 meters. (see the picture)

Rubber sealing ring and disc can adjust tightness or softness with clamping ring, it insures best performance of adjusting the compression of sealing

Body and disc made of ductile iron which promote the impact resistance and pressure-bearing capacity; sealing ring made of rubber and valve seat's sealing surface is conical shaped,make the sealing capacity more reliable.

Excellent Corrosion Protection:
Inside electrostatic epoxy resin powder coating or vitreous enamel(upon request),outside electrostatic epoxy resin powder coating

Reliable Health Nature:
Epoxy resin coating complies with WARS certification.
Scope Of Application:
Potable water supply and distribution, electric power pant,gas supply, warm-aiti system,smelting plant,chemical industry.


Technical Specifications:
Design: EN593
Face to face: ISO5752/EN558 SERIES13
Flange drilling: EN1092
Upper flange connection:ISO5211

Main Dimensions: Unit: mm
DN H1 H2 D L
100 460 109 220 127
150 530 143 285 140
200 570 182 340 152
250 660 219 400 165
300 715 244 455 178
350 750 283 505 190
400 785 312 565 216
450 890 344 615 222
500 920 381 670 229
600 995 451 780 267
700 1055 526 895 292
800 1135 581 1015 318
900 1190 643 1115 330
1000 1315 722 1230 410
1200 1505 840 1455 470
1400 1740 1150 1675 530
1600 1915 1305 1915 600
1800 2100 1425 2115 670
2000 2225 1580 2325 760
2200 2325 1710 2550 580
2400 2570 1880 2760 750
2600 2850 2010 2960 900
For other sizes not mentioned above, please contact us.
We have right to change the data without further notice.