FUJIKURA VFR Proportional Flow Valve with Regulator

• Integrated RG2 regulator: Integration with the RG2 regulator helps reduce the influence of primary pressure fluctuations on flow control.
• Stepless current control: Flow changes continuously according to the input current for fine and smooth adjustment.
• PWM control capability: Pulse-width modulation can be used to operate the valve through automated and electronic control systems.
• Low hysteresis and good repeatability: Low hysteresis and good reproducibility support stable flow during repeated operation.
• Compact M5 port design: M5 inlet and outlet ports support installation in compact equipment requiring fine flow control.

Q1: What is the FUJIKURA VFR Series?
A: The VFR Series integrates an RG2 regulator with a proportional flow valve and controls flow through input current or PWM signals.

Q2: What is the standard VFR model?
A: The standard model is VFR-4-M5.

Q3: What is the difference between the VFR and VF Series?
A: VFR integrates an RG2 regulator to reduce the influence of primary pressure fluctuations. VF is a standalone proportional flow valve.

Q4: What is the flow adjustment range of VFR-4-M5?
A: The secondary flow adjustment range is 0.1 to 7.5 L/min at a set pressure of 20kPa.

Q5: How is the flow rate adjusted?
A: Flow changes continuously according to the input current, enabling stepless adjustment.

Q6: Does the VFR Series support PWM control?
A: Yes. PWM control is supported for integration with controllers and automated equipment.

Q7: What is the primary pressure range?
A: The maximum primary pressure is 200kPa, and the set pressure range is 0 to 40kPa.

Q8: What are the input current and resistance values?
A: The maximum input current is 120mA, and the resistance is 47Ω.

Q9: What pipe port does VFR-4-M5 use?
A: Both the inlet and outlet use M5 pipe ports.

Q10: What applications is the VFR Series suitable for?
A: It is suitable for medical equipment, respirators, anesthesia machines, and compact equipment requiring stable pressure characteristics and precision fine-flow control.