Products
Knife gate valve
Brief description:
Bi-directional seal knife gate valve( No Groove)——cast iron body with the over all structure knife gate valve, including valve’ body, gate, and U-shaped flexible seal at the bottom of the body with grooves. When the valve is closed, the bottom of the gate edge contact with the seal and then compress the seal into the groove in the body and sealed gate realization; when the gate opens, separate gate from the bottom edge of the seal, seal will bounce to same level as groove, which will prevent the media sediment accumulated in the body cavity of the groove, no clogging, no residue, pipe easy to clean, so as to effectively improve the sealing effect knife gate valve to prevent leakage when the valve is closed.
Unidirectional seal knife gate valve is buried in valve’ body and completely isolated from the outside environment, it is suitable for installed with sewage pipes and keeps the valve body immersed in the liquid, if the gate is not isolated from the external environment, then the gate will soon be corrupted and influence its serving life. The sealing structure is that when knife is moving downward, its edge will press the wedge block and ensure the knife will be closed combined with seat seal, so as to achieve a sealing effect.
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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