NNV-NPTF flow control valves allow the adjustment of the flow in both directions.
Needle valves with reverse-flow check are fully adjustable orifices used to regulate flow. They are infinitely adjustable from fully closed up to the maximum orifice diameter. An integrated check valve provides unrestricted flow from port 2 to port 1. These valves are not pressure compensated.
Zinc plated high resistance steel with graduated adjustment for accurate flow settings.
Set screw allows the knob to be locked into position.
These valves can be panel mounted.
Oil temperature ranges from -4 to 176°F (-20 to + 80°C)
*Because needle valves are non-compensating devices, the fixed orifice size will regulate flow through the valve in proportion to the square root of the pressure differential across ports 1 and 2.
