Product Specification
Material: Carbon Steel (ASTM A105) Flange
Type: Slip-On
Flange Size: 4 inches (Pipe Size)
Bolt Holes: 4 holes for secure attachment
Pressure Rating: 300# ANSI (Class 300)
Face Type: Raised Face (RF)

Products Description
This Slip-On Flange is designed for use in 4-inch pipe systems and is made of carbon steel (ASTM A105). It has a 300# ANSI rating and a raised face (RF), ensuring a secure and reliable connection under medium- to high-pressure conditions. The flange has 4 bolt holes, making installation easy and providing a firm attachment to other piping components. Its slip-on design allows the pipe to slide into the flange before welding.
common application
- Chemical Processing: Ideal for chemical pipelines that require high-pressure and durable flange connections.
- Oil and Gas: Used in pipelines for oil transport.
- Refineries: Essential for refining systems under high pressure.
- Power Generation: For steam or high-pressure systems.
- Water Treatment Plants: Provides leak-free connections.



- 8 years of experience in pipe fittings and flange manufacturing.
- Over 98% pass rate for our 14-step QC process.
- A team of 10 experienced engineers dedicated to R&D.
- Comprehensive quality supervision of the entire production process from raw materials, manufacturing, packaging, and warehousing, to container loading.
- A mature logistics management system and our freight forwarding agents ensure our on-time delivery (OTD) rate reaches 100%.

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