Cast iron threaded galvanized fittings

BRENNEN cast iron fittings are reliable connecting elements for heating, water supply and gas distribution systems. The fitting body is made of ductile iron according to ISO 49 and EN10242 by injection molding. Two types are available without coating and with a zinc coating of at least 500 g / m2 or 70 microns. They are highly resistant to aggressive water solutions and transported gases. Galvanized fittings do not have restrictions on the operating environment and can be installed in wet rooms and outdoor pipelines. The internal threads of BRENNEN cast iron fittings are cylindrical, the external threads are conical with a taper of 1: 16. Threaded connections with a cylindrical external thread are used for seals through a gasket or locknut.

In addition to various types of shut-off and connecting fittings, when creating pipeline networks, various types of connecting elements are necessary, which include, first of all, fittings. Actually, the word "fitting" is English and means installation or Assembly. This factor explains the main purpose of these products.

The essence and structure of cast iron fittings

Cast iron fittings are connecting elements that connect gas pipes, as well as heat and water pipes. Compared to other materials, their main advantages are:

• Consistently high quality products.

• Ability to make the connection as tight as possible.

• Ease of installation.

• Acceptable cost.

• It can be used even after repeated dismantling.

The main element that provides the connection is the pipe thread. And to achieve maximum tightness, it is necessary to additionally use FUM tape, various types of paste or other analogues of seals. These types of seals were used many years ago. But until now, something better than such tools has not yet been invented.

Types of cast iron fittings

Classification of cast iron fittings today includes a fairly large number of product options. Each of them has a specific purpose, based on which there was a division into separate groups. In addition, a significant role in the classification is played by the type of reinforcement, which is also used for laying networks. The main types of cast iron fittings today are:

• Bends that allow you to change the direction of pipe placement.

• Tees (collectors) that allow you to create a branch of the pipeline into several networks.

• Crosspieces that allow the connection of four pipes.

• Straight couplings that allow you to connect two pipes located in the same direction.

• Adapters. Thanks to their use, you can connect structures of different diameters or made of different materials.

• Caps and caps that are necessary to cover the pipe.

• Fittings. Their purpose is to connect the pipe with a rubber hose.

One of the varieties of cast iron fittings are those that are coated with a special zinc coating. Due to this, their service life is much longer than that of conventional fittings.

Connection options for cast iron fittings

To ensure greater sealing, various types of seals must be used. Most often, their role is played by a FUM tape, which is wound on the pipe, after which the fitting is already screwed on. Wind the FUM tape only in a clockwise direction.

When using landfills, welding is used. Besides. installation of landfills requires appropriate experience.