Bi-directional seal Knife Gate Valve

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: hand wheel, 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.

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

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.