Knife Gate Valve
Valve manufactures a complete line of
and manually actuated Series G
Knife Gate Valves. The RD Actuator
is constructed of a lightweight, self-lubricating
Black Amalgon cylinder, aluminum cylinder
heads and stainless steel piston rod.
Black Amalgon is resistant to chemical
and corrosive attack and is more dent
resistant than aluminum or brass. Pneumatic
positioners can be used to either close
or open the valve upon increase of signal
pressure. Optional electropneumatic positioners
accept a standard ISA 4-20 mA signal.
Listed below is an actuator sizing chart
based on 60 psi plant air. Air to open/fail
closed and air to close/fail open actuators
are available up to 12 inches.
actuated knife gate valves are actuated
by AUMA electric operators as a standard.
These operators can be supplied with either
220-volt or 440-volt three- phase service
and have a NEMA 4 rating. Standard features
include Class F insulation, a double-lead
ACME stem thread, bronze drive nut, declutchable
handwheel override, opening and closing
torque and stroke limit switches, three
pushbutton station with selector switch
and position indicator. Other electric
operators, ratings and services are available.
A modulation version is available that
accepts the standard ISA 4-20mA input
signal. When ordering electrically actuated
knife gates, please specify electrical
service and pressure drop across the valve.
Us Be Your Series G Pneumatic/Electric/Manual
Knife Gate Valve Supplier
Leak-proof elastomer packing gland
delivery pneumatic actuated 2"
or electric actuation for automatic
Series G Knife Gate Valve
Kinfe Gate Valve
Materials of Construction
iron body lined with 316 stainless steel
metal or EPDM resilient seat
or electric actuator