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Types of sewer manhole stairs and how to use them\r\nUse of stairs in brick manholes\r\n- Round brick manholes\r\n- Brick walls\r\n- Concrete manholes (installation during concreting)\r\nPoly stairs Ethylene\r\n Applications Polyethylene stairs:\r\n. ponds and pools\r\n. Manholes and concrete walls\r\n Manholes and brick walls\r\n Single-walled and double-walled plastic manholes. Manholes and plastic/GRP walls\r\nPolyethylene stairs with metal core and polymer coating\r\nComplies with BS EN13101 ASTM C-478, C-497 (2002:E) standard. These stairs are designed to resist Metal stairs are designed ...

Polyethylene electrofusion fittings Electrofusion fittings are a type of fittings that can be used in gas transmission pipelines and water supply lines. In polyethylene coupler electrofusion connections, the heating method is used in comparison with butt fusion welding methods and electric current is used to generate heat. Due to its very high safety, this method is the only type of connection approved by the IGS standard for gas transmission lines. Using this method, various polyethylene connections such as pipe-pipe, pipe-elbow, pipe-bushing (for example in changing the diameter of the pipe ...

Types of rubber (gaskets) for sealing in water supply lines\r\nUsually, washers are divided into two categories: rubber and metal.\r\nThere are a wide range of washers such as flat washers, spring washers, spherical washers, lock washers, and square washers. have . Steel or metal washers are used in steel screws to increase the friction surface and close the screw tightly and not lose the preload pressure.\r\nUsage of washers\r\nThe washer is sometimes used as a separator and sometimes as a spreader of load and pressure from a Surfaces like rims and flanges are sometimes used to reduce the vib ...

Types of polyethylene fittings Polyethylene pipes have a wide variety of fittings that connect the pipes to each other to create a network of interconnected pipes in the project. These connections include the following: Screw connection Belt connection Switch connection Sewage welding connection Strong pressure welding connection Electrofusion connection and types of connections for drip irrigation and milk irrigation Types of polyethylene connections in two models of welding and threading three-way, knee, flange, conversion, cross-section and ..... Welded polyethylene fitt ...

Types of water supply, gas supply and sewage corrugated pipes Polythene pipe is simply a pipe made of polyethylene and it is the same polyethylene material that gives the pipe its properties. Which are the advantages and these advantages have made the popularity of polyethylene pipes. Polyethylene pipes have many advantages, high quality, reliability of polyethylene pipes and fittings, ease of loading and transportation of polyethylene pipes and fittings due to their relatively low weight, quick and easy installation, the best choice of polyethylene In various projects. Also, polyethylene pip ...

Carogit Pipe is a type of polymer pipe, but the structure of Carogit pipe is different from other polymer pipes and its outer body is circular. Carogit pipe has parallel grooves and ridges. They are on their surface and are covered with masterbatch on the inner surface for smoothness, smoothness and non-corrosion. Carogit pipes are named based on the diameter of the inner opening. The outer diameter of the corrugated pipe depends on the mechanical strength or Step Step, which is produced in three classes of 16, 31.5 and 64 kN / m2.

Polyethylene screw joints Polyethylene screw joints are divided into three types: screw, welded and compression. Screw fittings are attached to pipes by means of threads that are inside or on these fittings and are used for small projects and small pipes. These polyethylene screw connections have various types, which we will mention in the following. Screw connections (threaded connections) are used to connect between two polyethylene pipes without the need for welding. These connections consist of different parts and their main application is in the water supply and irrigation system of a ...