PRF400 Air Filter Regulator Pressure Reducing Valve 400kPa 800kPa with Rc 1/4 and 1/4NPT Connections for Instrument Air Systems

Price Negotiable
Price: $2,00 - $5,00/PC
MOQ: 1
Delivery Time: 20 work days
Brand: koso
Product Description
Product Overview
The PRF400 Air Filter Regulator Pressure Reducing Valve is a precision instrument designed for industrial compressed air systems. This dual-function device combines air filtration with precise pressure regulation, ensuring clean, stable air supply for pneumatic equipment and instrumentation.
Working Principle
Compressed air enters at pressure P1 and passes through the valve port, where throttling reduces the pressure to output level P2. The output pressure is precisely adjustable via pressure regulating springs. Clockwise rotation of the knob increases output pressure, while counterclockwise rotation decreases it. The system automatically maintains stable output pressure through diaphragm feedback mechanisms that compensate for input pressure fluctuations.
PRF400 Air Filter Regulator internal working mechanism diagram
Technical Specifications
Parameter PRF300 PRF400
Maximum Set Pressure 200/400/800kPa 200/400/800kPa
Air Connection Rc 1/4, 1/4NPT Rc 1/4, 1/4NPT
Application Pressure reducing valve for instrument air regulation
Performance Characteristics
Pressure Regulating Range
The adjustable output pressure range where specified accuracy is maintained, primarily determined by pressure regulating spring stiffness.
Pressure Stability
Maintains consistent output pressure despite input pressure fluctuations, with minimal output pressure variation.
Flow Characteristics
Provides stable output pressure across varying flow rates, with lower output pressures showing minimal fluctuation.
PRF400 filter pressure reducing valve performance characteristics diagram
Selection Guidelines
Choose based on required pressure regulation accuracy and flow capacity. Ensure air source pressure exceeds output pressure by 0.1MPa minimum. Install after water separator and before lubricator or setter, paying attention to correct inlet/outlet orientation.
PRF400 filter pressure reducing valve selection and installation diagram
Key Features
  • Dual-function design combining filtration and pressure regulation
  • Precise pressure control with 200/400/800kPa options
  • Automatic pressure stabilization with overflow relief mechanism
  • Standard Rc 1/4 and 1/4NPT connections
  • Robust construction for industrial environments
  • Easy adjustment via intuitive knob control
PRF400 air filter regulator pressure reducing valve product image
Quality Assurance
All products undergo pre-production sampling and final inspection before shipment, ensuring consistent performance and reliability.

Get in Touch

Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Mengchuan Instrument Co,Ltd.
Location 58 Longhe Road, Liushi Town,Wenzhou, Zhejiang, China 325604
Contact Person Kiki

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