What Are Differences Between Standard Bag Filter and Dome Bag Filter

Bag Filter July 10, 2025

Comparison of Specifications Between Standard Bag Filter and Dome-Top (Turtle-Back) Bag Filter

Key Parameter	Standard Bag Filter	Dome-Top Bag Filter
Maximum Operating Pressure	0.6 MPa	1.6 MPa
Housing Deformation at 0.8 MPa	≥ 3 mm	≤ 0.5 mm

Three Common Scenarios Where the Dome-Top Bag Filter is Strongly Recommended:

High-Pressure Applications
Suitable for conditions involving high-pressure liquid transfer.
Pretreatment Before Reverse Osmosis (RO)
Ideal when pump pressure exceeds 1.0 MPa.
Viscous Material Filtration
For example, filtration of materials like epoxy resin during pipeline transfer.

Hot Fluid Filtration Applications:

High-Temperature Heat Transfer Oil (150°C or higher)
The dome-top structure resists thermal expansion and deformation effectively.
Steam Condensate Recovery Systems

Final Reminder:

If the operating pressure is below 0.6 MPa, using a dome-top bag filter may be an unnecessary cost. However, if the pressure exceeds 1.0 MPa, not choosing the dome-top version could pose a safety risk to the equipment.