FUJIKURA RA Compact General-Purpose Regulator

• Compact and lightweight design: The regulator weighs approximately 130g and is suitable for equipment requiring compact installation and air flow capacity.
• Push-lock knob: The knob can be pushed down after pressure adjustment to lock the setting and reduce accidental changes.
• Relief and non-relief models: Relief and non-relief versions are available to match different secondary-side pressure control requirements.
• Manifold mounting available: The regulator can be installed individually or configured for manifold mounting.
• Grease-free gas-contact area: No grease is used in the gas-contact area, and special clean-room-compatible specifications are available upon request.

Q1: What is the FUJIKURA RA Series?
A: The RA Series is a compact and lightweight general-purpose regulator for equipment requiring limited installation space and air flow capacity.

Q2: What standard models are available?
A: Standard models include RA-2-1, RA・NR-2-1, RA-4-1, and RA・NR-4-1.

Q3: What set pressure ranges are available?
A: Set pressure ranges of 0 to 0.2MPa and 0 to 0.4MPa are available.

Q4: What is the difference between RA and RA・NR?
A: RA is the relief type and can release secondary-side pressure when the setting is reduced. RA・NR is the non-relief type and does not actively vent secondary pressure.

Q5: What repeatability does the RA Series provide?
A: The 0 to 0.2MPa models provide ±1.0% F.S. repeatability, while the 0 to 0.4MPa models provide ±0.5% F.S.

Q6: What is the purpose of the push-lock knob?
A: The knob can be pushed down after adjustment to lock the pressure setting and reduce accidental changes.

Q7: Can the RA Series be manifold-mounted?
A: Yes. Manifold mounting is available for centralized installation of multiple regulators.

Q8: Is a clean-room-compatible specification available?
A: A special clean-room-compatible specification is available upon request, and the gas-contact area is grease-free.

Q9: What port sizes are used?
A: The pipe port is Rc1/8, and the pressure gauge port is M5×0.8.

Q10: What applications is the RA Series suitable for?
A: It is suitable for buffers, balancers, press control, rolling equipment, tension control, and other compact automation systems requiring good flow characteristics.