KC Series Manual Needle Flow Control Valve

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Product details

KC Series Manual Needle Flow Control Valve

Product Overview

KC Series Manual Needle Flow Control Valve is a precision threaded Hydraulic valve. It is installed on pipelines of the hydraulic system to finely adjust hydraulic oil flow and regulate the movement speed of actuators for the Machine. The needle‑type throttling structure achieves stepless fine‑tuning of flow. Damaged or worn Hydraulic valve will lead to speed drift, unstable motion and inconsistent working performance of the Machine. Its compact inline structure is space‑saving, suitable for new‑equipment assembly and on‑site maintenance of the hydraulic system.

Technical Specifications

- Model Series: KC Series Manual Needle Flow Control Valve

- Valve Type: Needle‑type throttling Hydraulic valve

- Port Thread: BSP / NPT

- Max Working Pressure: 21 MPa

- Flow Range: 0.1‑40 L/min (varies by port size)

- Working Medium: Anti‑wear mineral hydraulic oil

- Operating Temperature: ‑20℃ ~ +80℃

- Installation: Inline threaded pipe mounting

- Adjustment Mode: Fine‑tuning needle screw with locking nut

- Feature: Stepless precise flow adjustment, small‑volume compact body

Working Principle

Hydraulic oil flows through the internal needle‑shaped throttling gap inside the hydraulic system. Rotating the needle screw changes the opening clearance of the throttling port, realizing stepless adjustment of flow rate to control the running speed of the Machine. The locking nut fixes the adjusted position to prevent shift caused by vibration. When the needle cone or seat surface is worn, internal leakage will occur, resulting in flow deviation and reducing working efficiency of the hydraulic system.

Core Advantages

1. Needle‑type throttling structure, enables stepless fine flow adjustment for accurate speed control of the Machine.

2. Lock‑nut design, keeps set flow stable and resists vibration‑caused parameter change in the hydraulic system.

3. Compact inline threaded body, saves installation space and simplifies pipeline layout.

4. Simple structure, easy to install and disassemble, directly matches existing pipe circuits without extra machining.

5. Good sealing performance, suitable for low‑to‑medium flow precision‑control circuits.

6. Effectively solves faults such as unstable cylinder speed and uneven actuator movement of the Machine.

Application Scope

This Hydraulic valve is widely applied to industrial Machine, including small‑size hydraulic test benches, automation fixtures, machine tools, light‑duty hydraulic equipment and instrumentation circuits. As a fine‑flow‑regulating component of the hydraulic system, it precisely controls travel speed of hydraulic cylinders and rotation speed of hydraulic motors. Ideal for original assembly, circuit retrofitting and spare‑part replacement

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Ningbo Hengnuo Hydraulic Drive Co.,Ltd

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Main Product: hydraulic motor, gear box, hydraulic pump , hydraulic valve , hydraulic winch, hydraulic system

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