300lb EPDM Rubber Flange Gaskets Design
Flange Contact Profile
The gasket profile is formed to cover the designated sealing area between the mating flange faces.
Bolt-Hole Arrangement
Bolt holes are positioned according to the specified flange pattern, allowing the gasket to align with the flange during assembly.
Inner Opening
The inner opening is produced according to the pipe or equipment passage, maintaining the required clearance within the connection.
Gasket Thickness
Different thickness specifications can be supplied according to the flange construction and available compression space.
- Class 300 Dimensions
Gasket dimensions can be manufactured according to the specified 300 lb flange size and applicable flange standard.
- ID & OD Control
Inside and outside diameters are controlled according to the required flange sealing area and pipe opening.
- Bolt-Hole Positioning
Bolt-hole diameter, quantity, and center-to-center positioning can be matched to the corresponding flange configuration.
- Assembly Alignment
The overall gasket geometry is coordinated with the flange dimensions to support accurate positioning before bolt tightening.
Custom 300lb EPDM Flange Gasket Manufacturing
Custom Gasket Geometry
Non-standard inner openings, outer profiles, thicknesses, and bolt-hole arrangements can be produced according to customer requirements.
EPDM Specification
EPDM compound, hardness, and other material requirements can be specified according to the intended service conditions.
Drawing or Sample Development
Customer drawings, existing gaskets, or flange samples can be used as production references for custom gasket development.
Repeat & Bulk Production
After specification approval, Chaoyue supports repeat manufacturing and bulk orders with the confirmed product configuration.
FAQ
What does 300 lb mean on an EPDM flange gasket?
"300 lb" refers to the Class 300 flange pressure class, not the actual weight of the gasket. The gasket dimensions should correspond to the specific flange size and standard being used.
Can the gasket be used between different flange materials?
Yes, provided the gasket material and flange configuration are suitable for the application. The mating flange materials and surface condition should be considered when specifying the gasket.
Should the flange surface be cleaned before gasket installation?
Yes. The flange faces should be free from old gasket residue, oil, dirt, rust, and other particles that could prevent the new gasket from seating correctly.
