better solution to slow-start valves! Fujikin’s Dual-Flow Valve
combines two actuators into one extremely compact valve, making possible
a selectable flow rate for gradual chamber pressurization without
An intuitive and efficient design allows for a space-saving actuator
of only 35mm diameter.
Set It and Lock It
The Low-Flow setting is set at the factory to the user-desired rate
and locked in place to prevent inadvertent adjustment. Future design
will allow for user adjustable low-flow setting.
UJR end-connections are highly robust and compatible with VCR®-type
conventional fittings as well. This allows installation in both existing
and new gas lines without costly modifications.
Ultra-Smooth Internal Finish
The valve internal surface finish is 5 Ra maximum as standard, allowing
the dual-flow valve to be utilized in a multitude of services.
Dual pistons make-up the actuator design, and allows for rapid and
precise flow switching.
Improved Tool Performance
By switching between the low-flow and high-flow rates, the chamber
pressure can now be raised gradually without agitating particles.
Large volume chambers can also be accommodated - difficult to achieve
with conventional slow-start valves.
Actuating the high-flow port enables the large-flow mode. 100% of
the valve’s rated Cv is delivered.
Actuating the low-flow port allows for a user-selectable initial flow
that can range from a small bleed, up to 100% of valve’s rated
Stringent Leakage Standards
Seat and external leakage successfully test at 5x10-11 acc/sec --
which is two orders of magnitude tighter than industry standards.
Fujikin Mega Series Valve
Stainless steel 316L body, nickel-alloy direct diaphragm, and PCTFE
seat is available in 1/4” and 3/8” sizes.