Pneumatic Actuator Bonnet Knife Gate Valve,Lug Type/Wafer Type

Application:

Pulp and Paper/ Mining /Waste Water Treatment/ Food and Beverage/Chemical Plants/ PowerPlants/ Steel Industry/Etc.

Description

This knife gate valve is a unidirectional knife gate valve with bonnet.The completely enclosed body-bonnet structure ensures 0 leakage from the knife gate to surrounding.This valve is very suitable to contaminated/hazardous media for the safety of surrounding.

Technical Data

Sizes: Seat Material:

DN 100 to DN 600 Resiliant: PTFE/RPTFE/PEEK/

(larger diameters on request) DEVLON/NYLON

Pressure Rating: Metal:

DN 100 to DN250,10 Bar NPS 2-10,150 psi Tungsten Carbide/Satellite/Ni60

DN 300 to DN450 ,7 Bar NPS 12-18,90 psi Certificate: CE, ISO9001

DN 500 to DN600, 4 Bar NPS 20-24,60 psi Accredited

Design Feature

BODY:

· Cast-in guide claws at the port bottom for gate fixture, instead of a groove, eliminates potential valve shutoff clogging while providing tighter seal. The guide claws also push gate to seat for tight seal in closed position.

· Integral body design ensures easy assembly and 0 shell leakage.

· Full port design minimizes pressure drop and maximize flow capacity.

· PTFE resilient points against gate eliminate metal-metal contact between gate and bo dy.

GATE:

· Beveled knife edge provides strong cutting stress and tight sealing.

· Gate thickness can be increased to meet higher pressure.

· Gate surface is well polished at both sides for tight seal and less jamming.

· Gate is hard chrome coated for metal sealing valve.

SEAT:

· Side-entry seat is replaceable, reducing the cost of maintenance.

· L-shape seat retainer locks seat into valve body and covers seat side to prevent direct flow flushing.

STEM:

· Stem cover is available to ensure long service life for stem.

· Two thrust bearings minimizes torque for operation.

· Grease nipple is available to ease bearing lubrication.

Actuator :

Hand wheel, Electric ,Bevel Gear ,

Pneumatic (single & double-acting),Chain wheel ,

Hydraulic

Standard flange connection:

EN1092 GB/T 9113

ASME B16.5 AS 2129/4087

JIS B2220 Others on request

Feature

This type of knife gate valve is a unidirectional knife gate valve with bonnet. The completely enclosed body-bonnet structure ensures 0 leakage from the knife gate to surrounding. This valve is very suitable to contaminated/hazardous media for the safety of surrounding.