12" Class 900 Flange Stud Hole Insert - Black LDPE

High-density polyethylene stud hole insert designed to protect 900 Class DN 300 flange faces during production, transport and storage.

This insert features four ribs that engage the bolt holes around the flange perimeter, holding the cap firmly in place without requiring the bore contact of a full-face protector. Manufactured from LDPE, it resists moisture, dirt, paint and most oils, making it ideal for oil and gas refining, hydraulic systems and general industrial pipework.

Key Features

• Four-rib design indexes into flange stud holes for secure positioning
• LDPE construction provides chemical resistance and durability
• Quick and simple installation—no tools required
• Lightweight and cost-effective flange face protection
• Reusable across multiple storage and transport cycles

Specifications

• Nominal flange diameter: DN 300 (12 inch)
• Pressure rating: 900 Class
• Material: Low-density polyethylene (LDPE)
• Colour: Black
• Rib design: Four ribs for stud hole engagement

Applications

• Oil and gas refining equipment protection
• Hydraulic system flange covers
• Pipework storage and transportation protection
• Maintenance operations on flanged pipe assemblies
• Industrial manufacturing and maintenance workflows