Through Conduit Knife Gate Valve

Through conduit knife gate valve Bi-directional through type knife gate valve Through conduit bi-directional wafer style knife gate valve Through conduit type knife gate valve with double-acting pneumatic actuator Through conduit type knife gate valve with handwheel Through conduit...

Through conduit knife gate valve

The Through Conduit Knife Gate Valves can be made of hard and soft sealing structure according to the needs of the customer. The penetrating knife gate valve has the characteristics of precision structure, good craft and compact structure. The sealing valve seat is designed for the active structure, and has the function of anti wear and automatic compensation, thus the life is longer. During the closing and opening process, the valve seat and the ram are always moving closely, so that the valve opening and closing force is stable and has the characteristics of cutting off the medium.

The through conduit knife gate valve is a bi-directional wafer knife gate valve. It is mainly designed for highly concentrated flow media. With a through going O-port plate, this valve provides a stable and safe shut-off performance without clogging. With double-seat design, it can handle flow in both directions.

Model: PZ73X

Size：DN50~DN1000

Working Pressure: PN0.6,PN1.0,PN1.6,ANSI 150

Working temperature: -40~180 ℃

Gas source pressure: 0.4~0.7Mpa

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, lever

Main material: F55,F53,2205,CF3M,CF8M,CF8,WCB

Disc material:F55,F53,2205,SS310,SS316L,SS316,SS304

Sealing material: NBR,EPDM,PTFE,FKM,Graphite, Metal

Packing: Aramid fiber,high-water based fiber,rubber,PTFE, graphite

Applicable medium: Applicable for coal in power plant, sewage treatment,food,paper making,medicine,petroleum andchemicalindustry,water,Oil,steam,connecting orcutting grout, gold powder, ores, slag, coal, pulp, woodpulp,tailings,fibers,dust,chemicals,sewagetreatment,sedimentation tanks,asphalt,bunkerexport, cereals, slaughter plant waste and other media.

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Products Features

1. Body：
a) Full port design minimizes pressure drop and maximizes flow capacity.
b) Packing at both top and bottom eliminates leakage to surrounding.
2. Gate：
a) Though gate with o-port cut through a disc of media down when closing and return this portion back when opening.
This prevent media from clogging in the valve body cavity.
b) Gate thickness can be increased to handle higher working pressure.
c) Gate surface is well polished at both sides for tight seal and less jamming.
d) Gate is hard chrome coated for better abrasion resistance.
3. Seat：
a) Side-entry seat is replaceable, reducing the cost of maintenance.
b) Seat retainer covers the side of seat and prevents seat from direct flow flushing.
c) Preloaded seat is adjustable to meet different sealing class and compensate normal seat wear.
d) With seats on both sides, valve can handle flow in both directions 100%.
4. Other：
a) Double thrust bearing minimizes the operating torque.

Product application

The through conduit knife gate valve is a through conduit wafer valve designed for media with high consistency. The double seat design assures a non-clogging shut off on either normal or reverse flow. The valve is used in a wide range of demanding applications in industries such as:
Pulp & Paper
Wastewater Treatment Plants
Power Plants
Chemical plants
Etc.

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