Bi-directional seal Polyurethane lined Knife Gate Valve

Working Pressure: DN50-DN200 16bar

                 DN250-DN400 10bar

                 DN450-DN600 8bar

DN650-DN800 6bar

Type: Wafer

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, electro-

hydraulic, gear box

Main material: CF3M,CF3,CF8M,CF8,WCB,GGG40

Knife material: SS316L,SS304

Sealing material: Polyurethane

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, cereals, slaughter plant waste and other media.

Features: 

# Bi-directional seal

# 2PC Body design

# Full port design

# Fluid without retention in valve body

# Super wearable special for mining

# 2PC Strong yoke design

# Mixed with a variety of materials packing

Product Description:

No groove bi-directional seal knife gate valve, 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.