FUJIKURA FCH High-Pressure Check Valve

• High-pressure capability: Brass models support working pressures up to 10MPa, while SUS316 models support pressures up to 13MPa.
• Double-contact sealing: The O-ring and metal-seal structure helps reduce stress and damage to the sealing material.
• Two body materials: Brass and SUS316 body options are available, with all metal components in the stainless steel type made of SUS316.
• Three port sizes: Rc1/4, Rc3/8, and Rc1/2 ports are available for different piping and flow requirements.
• Gas and liquid compatibility: The series supports compressed air and liquid applications in machinery, industrial furnaces, analyzers, medical equipment, and water-treatment systems.

Q1: What is the FUJIKURA FCH Series?
A: The FCH Series is a high-pressure check valve for compressed-air and liquid piping that prevents reverse flow from the outlet to the inlet.

Q2: What complete FCH models are available?
A: Brass models include FCHB-2-V, FCHB-3-V, and FCHB-4-V. SUS316 models include FCHT-2-V, FCHT-3-V, and FCHT-4-V.

Q3: What is the difference between FCHB and FCHT?
A: FCHB has a brass body and supports working pressures up to 10MPa. FCHT has a SUS316 body and supports pressures up to 13MPa.

Q4: What fluids can the FCH Series handle?
A: It supports compressed air and liquids. Fluid compatibility with brass, SUS316, and FKM should be confirmed before selection.

Q5: What is the standard cracking pressure?
A: The standard cracking pressure is 7kPa, equivalent to approximately 1.02psi.

Q6: What does cracking pressure mean?
A: Cracking pressure is the minimum pressure difference between the inlet and outlet required for the valve to begin opening.

Q7: What pipe port sizes are available?
A: Rc1/4, Rc3/8, and Rc1/2 ports are available, represented by model codes "2," "3," and "4."

Q8: What is the purpose of the double-contact seal?
A: The O-ring and metal-seal structure distributes the load at the sealing area and helps reduce damage to the seal material.

Q9: What is the operating temperature range?
A: The operating temperature range depends on the selected seal material. Confirm the specification for temperatures above 100℃ or below -20℃.

Q10: What applications is the FCH Series suitable for?
A: It is suitable for machine tools, industrial furnaces, medical equipment, analyzers, fuel cells, batteries, water treatment, compressors, and high-pressure fluid piping.