Clippard Fill & Bleed Valve0 pages

Technical Data Bulletin 4.03
FBV-3 Fill and Bleed Valve
A new special valve called a “fill and bleed” has been added
to the Clippard valve product line. This new toggle valve has
two poppet valves connected to a single outlet. The
operation is similar to a three-way, three-position center
blocked valve.
Depressing the toggle from the center in one direction allows
flow from the inlet to the outlet. Depressing the toggle in the
other direction allows flow from the outlet to exhaust. In the
toggle center position, the inlet, outlet and exhaust are
blocked maintaining the existing pressure. Toggle positions
can be momentary or maintained by a detent depending on
the model selected. In the adjustable flow models, both flow
rates are controlled by built-in needle valves. The nonadjustable models have no built-in needle valves.
Applications. The FBV-3 with adjustable flow may be used to pressurize or “fill” a chamber or bladder by
depressing the toggle in one direction and then de-pressurize or “bleed” that same chamber or bladder by
depressing the toggle in either direction. Toggling back and forth between the inlet and exhaust provides a fine
adjustment of the required pressure in the chamber or bladder.
It may also be used to control the extend and retract speed of a single acting spring return cylinder. Two built-in
needles valves independently control the flow of air in both directions so that the pressurizing step may be faster or
slower than the de-pressurizing step. In the case of a single acting cylinder, this allows the extend rate of the
cylinder to be fast and the retract rate very slow or vice versa.
The non-adjustable models may be used for the same applications where higher flow is necessary and the flow is
only controlled by toggling the valve back and forth. These models may also be used as a selector between two
different pressure supplies using the exhaust port as the second inlet.
Features
• Adjustable or non-adjustable flow models
available.
• Adjustable models have built-in needle valves
to control flow.
• Non-adjustable models may be used as
pressure selectors.
Specifications
Valve Type:
3-way poppet valve, 3-position, center
blocked
Toggle Position Options:
Momentary, spring centered, momentary
Detented, spring centered, momentary
Detented, spring centered, detented
Medium:
Air
Air Flow:
Adjustable Models Non-Adjustable Models
3.0 scfm @ 50 psig 4.5 scfm @ 50 psig
5.0 scfm @ 100 psig 7.5 scfm @ 100 psig
• Mounting threads for panel or two holes for
surface mounting.
Inlet Pressure:
120 psig max. or 30” Hg vacuum
Arc of Travel:
35˚ each side of center
• Bright dipped brass construction for long life
and corrosion-resistance.
Force for Full Toggle Travel: 8 oz. nominal
• Stainless steel springs, Delrin® toggle and
spools—non-corrosive.
Mounting:
5/8”-32 male thread, nut and lockwashers
provided, two 0.171 mounting holes in
body or may be mounted directly on a cylinder
Port:
#10-32 female thread or 1/8” NPT female
thread
• Compact design, simple to install in circuit.
• Rugged Delrin® toggle for easy operation.
Temperature Range: 32˚ to 230˚F
• Buna-N seals; Viton® option available.
Minimatic® is a registered trademark of Clippard Instrument Laboratory, Inc.
Viton® and Delrin® are registered trademarks of E.I. Dupont Company