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The company reserves the right to vary models and dimensions without notice.
These products are designed for industrial applications and are not suitable for sale to the general public.
FLOW CONTROL VALVES NPTF
Flow Control Valves NPTF
3
NORTH AMERICAN FITTINGS & FLOW CONTROL VALVE CATALOG
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Release 8.6
In-line Flow Control Valves
NPTF/Inch Series RFU
Panel/Wall-Mount Design: Meter-Out, Meter-In
Thread Type: 10-32 UNF, 1/8”, 1/4”, NPTF
The undirectional flow controllers are
equipped with M5 [10-32 UNF], 1/8” and
1/4” ports, each of which is available
with two different types of adjustment
(see diagrams).
They are used mainly for controlling
the speed of cylinders.
They may be mounted on control panels
or cylinders, as required.
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Series RFU: unidirectional
flow control valves for the
speed regulation of a cylinder
Construction
In-Line Needle type
Valve group
Unidirectional controller (meter-in, meter-out)
Materials
Aluminum body, Brass needle, Buna-N seals
Mounting
with screws in the holes of the valve body or panel mounted
Threaded ports
M5 (10-32 UNF), 1/8”, 1/4”, NPTF
Installation
as required
Operating temperature 32° - 175° F (dry air necessary down to -4° F)
Operating pressure 1.0 - 10 bar (14.5 - 145 psi)
Nominal pressure
6 bar (87 psi)
Nominal flow
see graph
Nominal diameter
(flow orifice)
1/8” = 2 mm (.079”), or 3 mm (.118”)
1/4” = 4 mm (.157”), or 6 mm (.236”)
Fluid
filtered air
Lubricant
Oil compatible with Buna-N (3° - 10°F)
*Qn flowrate (SCFM) determined iwht a supply pressure of 6 bar (87 psi), and with a pressure drop of 1 bar (14.5 psi).
**Dimensions are in inches.
GENERAL DATA