Ductile Iron Bi-directional Seal Knife Gate Valve
Features
Body Design |
Innovative body & Full port |
No Groove Body |
Self cleaning and cutting function |
U Type Seat |
Bi-directional & Reduce liquid residue |
Valve Structure |
Rising Stem & 1-PC Strong yoke |
Leakage Level |
Bubbles-tight sealing with no leakage |
Low Torque |
Operation easy and flexible |
Low Flow Resistance |
Improve fluid efficiency and reduce energy consumption |
Coating Grade |
Conventional and special conditions of C1-C5 & CX |
Certificates |
ISO9001, CE, WRAS, ACS |
Specifications
Design Standard |
MSS SP-81 |
End Flange Standard |
EN 1092 PN10, ANSI 150LB |
Face to Face Dimension |
MSS SP-81 |
Testing Standard |
API 598 |
Temperature |
-20℃~120℃ (depends on the sealing material) |
Body Material |
Ductile Iron |
Disc Material |
SS304, SS316, SS316L |
Shaft Material |
Stainless Steel |
Seat Material |
EPDM, NBR |
Operator |
electric, pneumatic, hydraulic, sprocket, gear available |
Dimension
Size |
L |
PN10 |
ANSI 150LB |
||||||
Ф D |
N-Th |
Ф d |
H1 |
Ф D |
N-Th |
Ф d |
H1 |
||
DN50 |
48 |
125 |
4-M16 |
∅18 |
290 |
121 |
4-5/8" |
∅19 |
260 |
DN65 |
48 |
145 |
4-M16 |
∅18 |
330 |
140 |
4-5/8" |
∅19 |
292 |
DN80 |
51 |
160 |
8-M16 |
∅18 |
358 |
153 |
4-5/8" |
∅19 |
320 |
DN100 |
51 |
180 |
8-M16 |
∅18 |
378 |
191 |
8-5/8" |
∅19 |
358 |
DN125 |
57 |
210 |
8-M16 |
∅18 |
428 |
216 |
8-3/4" |
∅22 |
395 |
DN150 |
57 |
240 |
8-M20 |
∅23 |
490 |
242 |
8-3/4" |
∅22 |
450 |
DN200 |
70 |
295 |
8-M20 |
∅23 |
588 |
299 |
8-3/4" |
∅22 |
532 |
DN250 |
70 |
350 |
12-M20 |
∅23 |
690 |
362 |
12-7/8" |
∅25 |
670 |
DN300 |
76 |
400 |
12-M20 |
∅23 |
815 |
432 |
12-7/8" |
∅25 |
758 |
DN350 |
76 |
460 |
16-M20 |
∅23 |
890 |
476 |
12-7/8" |
∅25 |
857 |
DN400 |
89 |
515 |
16-M24 |
∅27 |
980 |
540 |
16-1" |
∅29 |
946 |
DN450 |
89 |
565 |
20-M24 |
∅27 |
1025 |
578 |
16-1 1/8" |
∅32 |
1023 |
DN500 |
114 |
620 |
20-M24 |
∅27 |
1230 |
635 |
20-1 1/8" |
∅32 |
- |
DN600 |
114 |
725 |
20-M27 |
∅30 |
1390 |
750 |
20-1 1/4" |
∅35 |
- |
DN700 |
127 |
840 |
24-M27 |
∅30 |
1720 |
864 |
28-1 1/4" |
∅35 |
- |
DN800 |
127 |
950 |
24-M30 |
∅35 |
1862 |
974 |
28-1 1/2" |
∅41 |
- |
DN900 |
127 |
1050 |
28-M30 |
∅35 |
1910 |
1086 |
32-1 1/2" |
∅41 |
- |
DN1000 |
149 |
1160 |
28-M33 |
∅36 |
- |
1200 |
36-1 1/2" |
∅41 |
- |
Knife gate valves are engineered for demanding applications such as mining slurries, pulp & paper, chemical processing, and wastewater treatment. Its true bi-directional design ensures reliable sealing from both flow directions. The innovative non-groove body prevents media buildup, eliminating clogging and ensuring a full, unobstructed flow path. It features a self-cleaning action and superior shearing capability for fibrous and abrasive media. Maintenance is simplified with its top-entry design, allowing for easy in-line service. This robust design delivers exceptional performance and long service life in handling the toughest slurries, solids, and viscous media.