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商品の詳細:
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| 注文コード: | R900915814 | フルモデル: | 2FRE16-4X/160LBK4M |
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| バルブの種類: | 圧力補償付き2方比例流量制御弁 | 主な機能: | 電子制御による圧力および温度補償による流量調整により、負荷の変化に関係なく正確なアクチュエータ速度制御を実現します。 |
| 最大。動作圧力: | 315 bar (ポート A、B) | ||
| ハイライト: | Rexroth proportional hydraulic valve,R900915814 hydraulic valve,2FRE16-4X hydraulic valve |
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Parameter |
Specification |
|---|---|
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Manufacturer / Series |
Rexroth 2FRE 16 Series |
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Order Code |
R900915814 |
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Full Model |
2FRE16-4X/160LBK4M |
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Valve Type |
2-Way Proportional Flow Control Valve with Pressure Compensation |
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Primary Function |
Electronically controlled, pressure- and temperature-compensated flow regulation for precise actuator speed control independent of load changes. |
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Control Type |
Proportional solenoid with inductive position transducer (requires external amplifier). |
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Nominal Size |
NG16 |
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Max. Operating Pressure |
315 bar (Ports A, B) |
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Rated Flow (Qn) |
160 L/min (A→B) |
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Flow Characteristic |
Linear (L) |
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Pressure Compensation |
Yes (Built-in pressure compensator with stroke limiter) |
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Check Valve |
Yes (Integrated check valve for free reverse flow B→A; suffix "B"). |
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Ports |
A, B (2-way) |
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Mounting |
Subplate Mounting (ISO 6263 NG16 interface) |
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Electrical Connection |
K4 (Individual 3-pin connector per EN 175301-803 + GSA20 for transducer) |
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Seal Material |
NBR (Standard for mineral oils) |
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Supply Voltage |
24 V DC (via external amplifier) |
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Coil Resistance |
~10 Ω (at 20°C) |
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Max. Coil Current |
~1.5 A |
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Hydraulic Fluid |
Mineral oils (HL, HLP), HETG, HEES, HFDU |
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Operating Temperature |
-20°C to +80°C |
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Weight |
Approx. 8.6 kg |
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Country of Origin |
Germany |
Q1: What is the key difference between this 2FRE16-4X/160LBK4M and the 2FRE16-4X/100LBK4M?
A: The primary difference is the rated flow capacity. This model is rated for 160 L/min, making it suitable for applications requiring higher flow rates than the 100 L/min version. It shares the same NG16 size, pressure rating (315 bar), and core features (pressure compensation, linear characteristic).
Q2: Does this valve allow free flow in the reverse direction?
A: Yes. The "B" suffix in the model code indicates an integrated check valve. This allows oil to flow freely from port B to port A (reverse flow), reducing pressure drop and heat generation during the return stroke of a cylinder. Flow control (metering) only occurs from A→B.
Q3: What external equipment is needed to operate this valve?
A: This valve requires an external proportional amplifier (e.g., Rexroth VT-VRPA1-151-1X or VT-MRPA1 series). The valve itself contains the solenoid and position sensor; the amplifier provides 24V DC power, processes the command signal (e.g., 0-10V), and closes the position control loop for precise spool positioning.
Q4: What is the minimum pressure drop required for stable operation?
A: A minimum pressure differential of approximately 6 to 10 bar across the valve (inlet to outlet) is typically required for the pressure compensator to function correctly and maintain stable, accurate flow control.
Q5: In which applications is this high-flow valve commonly used?
A: The 2FRE16-4X/160LBK4M is designed for heavy-duty industrial machinery requiring precise, high-flow speed control, such as:
Large Presses: Controlling the approach and pressing speed.
Injection Molding Machines: Metering the injection unit speed.
Steel & Foundry Equipment: Regulating the movement of large actuators.
Test Rigs: Providing variable flow to large cylinders.
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