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Product Description: JSC Series Speed Control Elbow Fitting
The JSC Series Speed Control Elbow Fitting is a critical component in pneumatic systems used to precisely regulate the speed of pneumatic actuators, such as air cylinders. It combines a flow control valve with an elbow push-to-connect fitting for compact and efficient installation.
Key Features and Function:
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Primary Function: Speed Control (Metering). By adjusting the flow of compressed air, this fitting controls the actuation speed (extension or retraction) of a pneumatic cylinder.
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Design: Elbow (90-degree) configuration, which is ideal for connecting tubing in tight spaces and directing the air line parallel to the component it is mounted on.
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Connection Type 1 (Tube): Push-to-Connect (or One-Touch) fitting (blue collet) for quick, tool-free connection and disconnection of pneumatic tubing (PU/Nylon).
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Connection Type 2 (Mounting): External Male Thread (usually BSPT or NPT, often plated metal) for direct, secure mounting into the port of a cylinder, valve, or other component.
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Adjustment: Features a Knurled Metal Knob and locking nut (visible on the top) for fine, manual adjustment of the flow restriction. Turning the knob clockwise or counter-clockwise increases or decreases the air flow.
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Construction: Durable combination of Nickel-Plated Brass/Metal (for the body and thread) and Engineering Plastic (for the elbow and push-in section) to ensure long-lasting performance under pressure.
Types of Speed Control (Metering)
While the exact type is not explicitly stated on the fitting, this style is typically one of two common configurations, designed to control the flow either into or out of the cylinder:
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Meter-Out (Most Common): Controls the exhaust air leaving the cylinder chamber. This is generally preferred as it provides better speed control and smoother movement by keeping a back pressure on the piston.
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Meter-In: Controls the supply air entering the cylinder chamber.
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