FUJIKURA FRM1 External Cracking Pressure Adjustment Relief Valve

• External cracking pressure adjustment: Cracking pressure can be adjusted externally for fluid control lines requiring pressure setting flexibility.
• Inline high-flow design: The inline structure routes relieved fluid through the outlet piping, supporting high-flow relief and recovery layouts.
• Water, air, and inert gas compatibility: The valve supports water, air, and inert gas applications in liquid lines, compressed-air lines, and gas equipment.
• Special packing reduces vibration: Special packing rubber helps inhibit valve vibration during relief operation for stable valve performance.
• Optional manual release: Pull ring and toggle lever manual release options are available for equipment checks, pressure release, and maintenance work.

Q1: What is the FUJIKURA FRM1 Series?
A: The FRM1 Series is an external cracking pressure adjustment relief valve that allows the cracking pressure to be adjusted externally and relieves pressure when line pressure reaches the set value.

Q2: What fluids can the FRM1 Series handle?
A: The FRM1 Series supports water, air, and inert gas applications, including liquid lines, compressed-air lines, and gas equipment relief.

Q3: Is FRM1 an atmospheric or inline relief valve?
A: FRM1 is an inline relief valve with an Rc1/4 outlet connection, making it suitable for systems where relieved fluid is routed through outlet piping.

Q4: What cracking pressure range is available?
A: The cracking pressure setting range is 50 to 1500kPa and is divided into A, B, and C pressure range codes.

Q5: Can the FRM1 cracking pressure be adjusted by the user?
A: The FRM1 can be adjusted externally, and it is set before shipment according to the specified pressure. Actual adjustment should follow equipment conditions and safety requirements.

Q6: What is the maximum working pressure?
A: The maximum working pressure is 2.0MPa, and the pressure resistance is 3.0MPa.

Q7: What body materials are available?
A: Brass and SUS316, are available depending on fluid compatibility and corrosion-resistance requirements.

Q8: Can a manual release mechanism be added?
A: Yes. Pull ring and toggle lever manual release options are available for equipment checks, pressure release, and maintenance.

Q9: What is the difference between FRM1 and FRM2?
A: FRM1 supports water, air, and inert gas and can include a manual release mechanism. FRM2 is designed to reduce external leakage risk and can support solvent and special-fluid applications.

Q10: What applications is the FRM1 Series suitable for?
A: It is suitable for pressure tank control, liquid line relief, compressed-air relief, inert gas relief, compressors, compact pressure vessels, gas generators, machine tools, industrial furnaces, medical equipment, and analyzers.