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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
>
Release 8.6
UNIDIRECTIONAL AND BIDIRECTIONAL FLOW CONTROLLERS
(SCFM)
Qn (Nl/min)
105
87.5
70
52.5
35
17.5
Flow Qn (Nl/min.) from B
→
A with needle OPEN:
466 NL/min.
(16.45 SCFM)
Flow Qn (Nl/min.) from B
→
A with needle CLOSED:
153 NL/min.
(5.40 SCFM)
Flow Qn (Nl/min.) from B
→
A with needle OPEN:
875 NL/min.
(30.90 SCFM)
Flow Qn (Nl/min.) from B
→
A with needle CLOSED:
428 NL/min.
(15.11 SCFM)
To ensure the right choice of unidirectional flow controller, proceed as follows: calculate the quantity of air in NL/min (see cylinder Table);
determine the stroke time of the cylinder; refer to graph to see which controller is the right type. In the case of bidirectional regulators, re-
fer to the graph and check whether the flow control range is suitable for the work required. (NB: Qn is determined with a supply pressure
of 6 bar and with DP = 1 bar at the outlet. N° = number of screw turns.)
Flow Qn (Nl/min.) from 2
→
1 with needle OPEN: 2570 (90.75 SCFM)
Flow Qn (Nl/min.) from 2
→
1 with needle CLOSED: 1330 (46.95 SCFM)
NB: Qn is determined with a supply pressure
of 6 bar and with
D
P = 1 bar at the outlet
N° = number of screw turns.
08-08
06-04
06-06