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f l ow con t ro l v a l v e s & a c c e s sor i e s
4
B S P / M E T R I C
b s p/me t r i c
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.
174
Dimensions in millimeters (mm)
In-line Flow Control Valves
Series RFU - RFO
Unidirectional and bidirectional flow control valves
Ports: M5, G1/8, G1/4, G3/8 and G1/2
Nominal diameter: M5 = 1,5 mm; G1/8 = 2 and 3 mm;
G1/4 = 4 and 6 mm; G3/8 and G1/2 = 7 mm
The unidirectional flow controllers are
equipped with M5, G1/8, G1/4, G3/8 and
G1/2 ports.
G1/8 and G1/4 ports are available with
two different types of adjustment (see
diagrams), whereas M5, G3/8 and G1/2
ports have just one type of adjustment.
All models can be panel or wall mounted
or they can be mounted on cylinders, as
required.
To choose the most suitable model, it is
recommended to:
1. calculate the quantity of air in Nl/min
(see the cylinders tables in the catalogo
introduction);
2. determine the stroke time of the
cylinder;
3. check the flow diagrams (see pages
2/7.20.03 and 2/7.20.04).
GENERAL DATA
»
»
Series RFU: unidirectional
flow control valves for the
speed regulation of a cylinder
»
»
Series RFO: bidirectional flow
control valves for the air flow
regulation in both directions
and for the pressurization
or depressurization
of a container.
Construction
needle-type
Valve group
unidirectional and bidirectional controller
Materials
AL body - brass needle (not nickel-plated) - NBR seals
Mounting
with screws in the holes of the valve body or panel mounted
Threaded ports
M5 - G1/8 - G1/4 - G3/8 - G1/2
Installation
as required
Operating temperature 0°C - 80°C (with dry air - 20°C)
Operating pressure
1 - 10 bar (for models with M5 - G1/8 - G1/4 ports)
2 - 10 bar (for models with G3/8 - G1/2 ports)
Nominal pressure
6 bar
Nominal flow
see graph
Nominal diameter
M5 = 1,5 - G1/8 = 2 or 3 mm - G1/4 = 4 or 6 mm - G3/8 and G1/2 = 7 mm
Fluid
filtered air