piston check valve / flow-control / brass / needle
The JFC-4K Threaded Flow Control features a highly-durable anodized aluminum body in addition to tightfitting Buna-N seals. This device is suitable for use with air, oil and water, and is fitted with an electroless nickel-plated brass needle and stem. JFC-4K devices are combination needle and check valve flow controls, and are generally utilized for the control of air cylinders. Specifically, the devices control piston-stroke speed, either extending or retracting the component depending on circuit location.
The J-Series Flow Control Valves support one-directional free flow and the needled valve is used to monitor the opposite directional flow. Such models feature either a 1/4" NPT (JFC-4) or a 3/8" NPT (JFC-5) male threaded outlet, a recessed screwdriver slot (R) or knurled knob flow adjustment needles (K) and female NPT or Push-Quick inlets. These are high-quality devices that are both extremely efficient and economical.