Manual/pneumatic actuator Bonnet knife Gate Valve,lug type/wafer
type
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
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
Application:
Pulp and Paper/ Mining /Waste Water Treatment/ Food and
Beverage/Chemical Plants/ PowerPlants/ Steel Industry/Etc.
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.
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.
