Products
Knife gate valve
Brief description:
Bi-directional Seal Knife Gate Valve (No Groove):
- Cast iron body with overall structure.
- Includes valve body, gate, and U-shaped flexible seal without grooves.
- When closed, gate edge compresses seal into body groove, sealing gate.
- When open, gate separates from seal, allowing sediment-free groove.
- Improves sealing effect, prevents leakage.
Unidirectional Seal Knife Gate Valve:
- Buried in valve body, isolated from environment.
- Suitable for sewage pipes, valve body immersed in liquid.
- Gate must be isolated to prevent corrosion and impact on service life.
- Sealing achieved by knife edge pressing wedge block and combining with seat seal.
Design Features
Bi-directional seal knife gate valve
Features:
# Bi-directional seal
# 1PC Body design
# Full port design
# Reduce Fluid retention in valve body
# 2PC Strong yoke design
# Mixed with a variety of materials packing
|
Working Pressure |
DN50-DN100 16bar DN600-DN650 5bar |
|
DN125-DN200 14bar DN700-DN750 4bar |
|
|
DN250-DN300 12Bar DN800-DN900 3bar |
|
|
DN350-DN400 10bar DN1000 2bar |
|
|
DN450-DN550 8bar |
|
|
Type |
wafer |
|
Design Standard |
MSS SP-81 |
|
Flange Standard |
BS PN10/PN16 |
|
Face to Face |
MSS SP-81 |
|
Testing Standard |
API-598 |
|
Operation |
handwheel, gear box,electric, pneumatic, hydraulic, sprocket |
|
Main material |
GGG40 |
|
Wedge material |
SS316L, SS304 |
|
Sealing material |
EPDM |
|
Packing |
Aramid fiber,high-water-based rubber packing graphite wheel |
|
Applicable medium |
Applicable for coal in power plant, slag discharge, sewage treatment, food, paper making, medicine, petroleum and chemical industry, water, Oil, steam, connecting or cutting grout, gold powder, ores, slag, coal, pulp, wood pulp, tailings, fibers, dust, chemicals, sewage treatment, sedimentation tanks, asphalt, bunker export, fruit juices, cereals, slaughter plant waste and other media. |
Unidirectional seal knife gate valve
Features:
# Unidirectional seal
# additional bonnet design
# high pressure as request
# Mixed with a variety of materials packing
|
Working Pressure |
DN50-DN150 10bar |
|
DN50-DN2000 16bar |
|
|
DN2200-DN3000 10bar |
|
|
DN200 8bar |
|
|
DN250-DN300 6bar |
|
|
DN350-DN400 5bar |
|
|
DN450-DN600 3bar |
|
|
DN700-DN1400 2bar |
|
|
Type |
Wafer, Lug, Flange |
|
Design Standard |
MSS SP-81 |
|
Flange Standard |
DIN PN10,PN16,150LB ,JIS 10K,TABLE E/D |
|
Face to Face |
MSS SP-81 |
|
Testing Standard |
API-598 |
|
Operation |
handwheel, electric, pneumatic, hydraulic, sprocket, electrohydraulic, gear |
|
Main material |
F55,F53,2205,SS310,CF3M,CF3,CF8M,CF8,WCB,GGG40 |
|
Knife material |
F55,F53,2205,SS310,SS316L,SS316,SS304 |
|
Sealing material |
EPDM,NBR FKM |
|
Packing |
high-water-based rubber packing graphite wheel |
|
Applicable medium |
Applicable for coal in power plant, slag discharge, sewage treatment, food, paper making, medicine, petroleum and chemical industry, water, Oil, steam, connecting or cutting grout, gold powder, ores, slag, coal, pulp, wood pulp, tailings, fibers, dust, chemicals, sewage treatment, sedimentation tanks, asphalt, bunker export, cereals, slaughter plant waste and other media. |
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