FUJIKURA FC External-Thread General-Purpose Check Valve

• External-thread design: R male-thread connections support installation in general gas and liquid piping systems.
• Double-contact sealing: The O-ring and metal-seal structure helps reduce the load applied to the sealing material.
• Six port sizes available: R1/8, R1/4, R3/8, R1/2, R3/4, and R1 ports are available for different piping and flow requirements.
• Two body materials: Brass and SUS316 bodies are available with FKM as the standard seal material.
• Multiple cracking-pressure options: The standard cracking pressure is 7kPa, with optional 1, 20, and 50kPa specifications and an optional built-in disc filter.

Q1: What is the FUJIKURA FC Series?
A: The FC Series is an external-thread general-purpose check valve that prevents compressed air or liquid from flowing backward from the outlet to the inlet.

Q2: What standard FC models are available?
A: Brass models range from FCB-1-V to FCB-8-V, while SUS316 models range from FCT-1-V to FCT-8-V.

Q3: What is the difference between the FC and FCF Series?
A: FC uses R male-thread connections, while FCF uses Rc female-thread connections.

Q4: What is the difference between FCB and FCT?
A: FCB has a brass body, while FCT has a SUS316 body. Selection depends on the fluid, environment, and corrosion-resistance requirements.

Q5: What is the working pressure range?
A: The working pressure range is -0.1 to 4.9MPa, with a proof pressure of 7.35MPa.

Q6: What cracking pressures are available?
A: The standard cracking pressure is 7kPa. Optional 1kPa, 20kPa, and 50kPa specifications are also available.

Q7: What installation requirement applies to the 1kPa model?
A: For the 1kPa specification, the outlet must face upward to maintain the specified opening characteristics.

Q8: Can a filter be installed inside the FC Series?
A: Yes. An optional disc filter can be incorporated to help capture foreign matter in the piping.

Q9: Can the FC Series be used with liquids?
A: Yes. It supports compressed air and liquids, but compatibility with the body and seal materials must be confirmed.

Q10: What applications is the FC Series suitable for?
A: It is suitable for machine tools, industrial furnaces, medical equipment, analyzers, fuel cells, batteries, water-treatment systems, compressors, and gas or liquid piping.