Quick Opening Multi-Bag Filter

The CMI Quick-Opening Multi-Bag Filter Housing is specially engineered for processes requiring frequent bag change-outs, minimal downtime, and operator-friendly operation.
Its fast-release clamp mechanism allows the vessel to be opened within seconds, significantly reducing labor intensity and improving overall production efficiency.

This model is ideal for industries such as coatings, inks, resins, chemicals, RO pre-treatment, and high-flow water treatment, where replacing filter bags is part of daily operation.

The entire pressure vessel can be designed and fabricated according to ASME Section VIII, Division 1 upon request.

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Product Overview

The CMI Quick-Opening Multi-Bag Filter Housing is engineered for industrial processes requiring frequent bag replacement, minimal downtime, and efficient maintenance. Featuring a fast-release clamp mechanism and a balanced lid structure, the housing can be opened within seconds, significantly reducing labor intensity and improving operational efficiency.

It is widely used in coatings, inks, resins, chemical processing, RO pre-treatment, and high-flow water treatment systems, where daily filter bag replacement is required.

The pressure vessel can be designed and manufactured in accordance with ASME Section VIII, Division 1 upon request.

Key Features

  • Quick-opening balanced lid design
    Open and close the housing within seconds, ideal for high-frequency bag change applications.
  • Fast clamp closure (V-clamp mechanism)
    Ensures uniform sealing with tool-free operation, combining safety and efficiency.
  • Single-operator handling
    Balanced lid allows one operator to safely open and close the housing without heavy lifting.
  • Optimized for continuous operation
    Reduces downtime and improves maintenance efficiency in high-flow systems.
  • Vertical top opening design
    Compact footprint, suitable for space-constrained installations.
  • Universal filter bag compatibility
    Compatible with standard Size 1 and Size 2 filter bags (metal or plastic ring).
  • Reinforced interlocked structure
    Stable performance under fluctuating pressure and long-term industrial operation.

Specifications

Bag SizeSize 1 / Size 2
Number of Bags3 / 4 / 6 / 8 / 12 ...
Design PressureUp to 6–10 bar
Design TemperatureUp to 120°C
MaterialSS304 / SS316L (Duplex steel & Carbon steel upon request)
Gasket OptionsBuna / EPDM / Viton / PTFE
ConnectionsFlange / BSP / NPT / Tri-Clamp
Inlet / OutletSide Inlet / Bottom Outlet
Surface FinishPickling / Bead Blasting / Electropolishing (Ra ≤ 0.8 μm)

Options

  • Steam jacket or insulation
  • Hygienic tri-clamp configuration for food & beverage applications
  • Custom inlet / outlet orientation
  • JIS / DIN flange connections

Accessories

  • Magnetic bar for metallic particle removal
  • Mesh basket to convert housing into basket strainer
  • Displacement balloon for easier bag replacement
  • Differential pressure gauge or transmitter
  • Pump integration (skid-mounted systems available)

Applications

  • Chemical Processing
  • Pharmaceutical
  • Food & Beverage
  • Paint & Coatings
  • Automotive Coating
  • Oil Refining
  • Marine Industry
  • Water Treatment

Why Choose Quick-Opening Design?

Opening Type Speed Ease of Operation Safety Cost Level Typical Applications
Quick-Opening Very Fast Very Easy High Medium–High Frequent bag replacement
Chemical, coatings, water treatment
Davit Arm Fast Moderate Very High High Heavy-duty, high-viscosity systems
Frequent maintenance conditions
Eye Bolt Moderate Moderate Moderate Low General water treatment
Cost-sensitive applications

Quick-opening design is the optimal solution for high-efficiency systems requiring frequent filter bag replacement.

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Get a Quote

Our fabrication experts are ready to help you with custom-made filter housing and fabricated metal filter vessel solutions. Contact us with your specific requirements for a customized quote.