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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
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NORTH AMERICAN FITTINGS & FLOW CONTROL VALVE CATALOG
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Release 8.6
FLOW CONTROL VALVES NPTF
METER IN, METER OUT, NEEDLE ORIFICE FLOW CONTROLLERS
Flow Qn (Nl/min.) from 2 → 1 with needle OPEN: 400
Flow Qn (Nl/min.) from 2 → 1 with needle CLOSED: 280
NB: Qn is determined with a supply pressure of 6 bar and with
DP= 1 bar at the outlet
N° = of screw turns
Flow Qn (Nl/min.) from 2 → 1 with needle OPEN: 550
Flow Qn (Nl/min.) from 2 → 1 with needle CLOSED: 280
NB: Qn is determined with a supply pressure of 6 bar and with
DP= bar at the outlet
N° = of screw turns
TUBE OD 5/32”
TUBE OD 1/4”
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 bi-directional regulators, refer to the graph and check whether the flow control range is suitable for the work required.
Flow Qn (Nl/min.) from 2 ® 1 with needle OPEN: 890
Flow Qn (Nl/min.) from 2 ® 1 with needle CLOSED: 460
NB: Qn is determined with a supply pressure of 6 bar and with
DP= bar at the outlet
N° = of screw turns
TUBE OD 5/16”
TUBE OD 3/8” - 1/2”
Flow Qn (Nl/min.) from 2 ® 1 with needle OPEN: Ø 3/8”-1200/Ø1/2”-1250
Flow Qn (Nl/min.) from 2 ® 1 with needle CLOSED: Ø 3/8”-600/Ø1/2”-600
NB: Qn is determined with a supply pressure of 6 bar and with
DP= bar at the outlet
N° = of screw turns