4" Class 150 Flange Stud Hole Insert - Blue LDPE

Blue LDPE stud hole insert designed to protect 4" 150 Class flange bolt holes and sealing surfaces.

This flange protector features four ribs that push into the stud holes around a flange face, offering quick and cost-effective protection during production, transportation, storage and maintenance. The insert shields the gasket sealing surface from moisture, dirt, paint and most oils, making it ideal for oil and gas refining, hydraulics and process plant applications where flange integrity must be preserved.

Key Features

• Four ribs anchor into bolt holes for secure fit
• LDPE material resists moisture, dirt, paint and oils
• Quick and simple installation without tools
• Protects gasket face and sealing surfaces
• Cost-effective alternative to full-face flange protectors

Specifications

• Material: LDPE
• Colour: Blue
• Nominal Size: 4"
• Pressure Class: 150

Applications

• Oil and gas refining and storage facilities
• Hydraulic system flanges
• Flange protection during production and assembly
• Transit and warehouse storage
• Maintenance shutdowns and equipment storage