Screwed Flanges  Manufacturers, Traders, Suppliers

With almost 200 years of experience malleable iron fittings (EN10242/ISO49) from GF continue to enjoy great popularity and are known worldwide by installers for their outstanding quality.

Malleable cast iron fittings according to EN10242 (ISO 49)

Liquids and gases

Flanges according to ANSI B 16.5
Wide product range
Our product range in the category flanges (ANSI B 16.5) includes following types:
» welding neck flanges
» slip-on flanges
» lap joint flanges
» blind flanges
» socket-weld flanges
» threaded flanges
» special components acc. drawings
Special competence for special materials
We supply flanges with dimensions from ½“ upto 24“ for the pressure stages 150/300/600/900/1500/2500 lbs. Our speciality is the supply of special materials.
Technical data
More details, technical data and dimensions can be seen from our data sheet „flanges“ in the download area. Information on special measurements and special designs will be given upon your request.
WAZ (acceptance test certificate)
Of course, you may obtain a standard WAZ 3.1 with each delivery. Upon request, we are able to deliver a WAZ 3.2 (normally TÜV or other inspection institutions).

A Threaded Flange (also known as a Screwed Flange) is a type of flange that is connected to pipes without welding. It has an internal thread (female) that matches the external thread (male) of the pipe. This design allows for quick assembly and disassembly, making it especially useful in applications where welding is not suitable.
Key Features

• No welding required – easy installation and maintenance
• Ideal for low-pressure and non-critical applications
• Can be used where welding is dangerous (e.g., explosive environments)
• Typically supplied with a raised face (RF) or flat face (FF)

Applications

• Fire protection systems
• Compressed air lines
• Natural gas pipelines
• Small-diameter, low-pressure pipelines
• Temporary connections