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Riser Pipes Manufacturer Fabricator and Supplier

We are manufacturer, Exporter and Supplier of Riser Pipe also know as Riser pipes with welded neck flange, Riser pipes with smooth flange, ZSM riser pipes, Threaded riser pipes.

Riser Pipe Manufacturer and supplier
Rizer pipe manufacturer and supplier

What is Riser Pipes ?

A pipe that extends vertically from one floor level to the next for the purpose of carrying or distributing water, steam, or gas is called a riser. It is also called as a riser pipe line or riser main. This is a usually made of metal or plastic. We also find split riser pipes to cover electrical wires that run outside the house and is exposed. The spilt end is turned towards the wall or building providing total coverage. Metal risers last longer than plastic ones. In rare cases where a heavy vehicle runs over the plastic pipe, the string may break.

Flanges of rizer pipe


The choice of connections largely depends on technical requirements and installation guidelines for construction sites.

4 connection types on offer:

  • Riser pipes with welded neck flange
  • Riser pipes with smooth flange
  • ZSM riser pipes
  • Threaded riser pipes
4 types of rizer pipes

ZSM riser pipe conncections

  • Minimum space requirement – in case of cramped installation conditions
  • Quick assembly/disassembly
  • Two rods – double safety
  • Two O-rings
  • 1.4301, AISI 304 or 1.4571, AISI 316 stainless-steel material
  • Size DN 50 to DN 250
  • Nominal pressure 40 bar
nominal diemeter of rizer pipe


  • Sizes from DN 50 to DN 250
  • Lengths up to 6 m
  • Wall thickness from 2.0 to 6.0 mm
  • Seamless or longitudinally seam-welded

Basic material details 

Stainless steel
S235JR (ST37-2) plastic-coated steel serves as a basic
material, Rilsan-coated, approved for drinking water.
Conforms to KTW requirements [official German
recommendation concerning the levels of polymers in
drinking water] as recommended by the German Federal
Department of Health.

S235JR (ST37-2) galvanized steel serves as a basic
material, only suitable to a limited extent for drinking
water, to be used for flange connections only.

In Stainless steel of various qualities depending on groundwater condition and temperature

M No. 1.4301 (X5CrNi18-10), AISI 304
This type of steel is resistant to water and slightly polluted
waste water as well as weak organic and inorganic acids.
Generally, it is resistant to a pH value up to approx. 4.5 in
aggressive substances low in chloride.

M No. 1.4541 (X6CrNiTi18-10), AISI 351
This type of steel has excellent resistance properties to a
variety of aggressive media. Furthermore, this material is
characterised by good ductility.

M No. 1.4571 (X6CrNiMoTi17-12-2), AISI 316Ti
Similar properties as 1.4404 but with guaranteed resistance
to intergranular corrosion due to an increased titanium

Accessories of Rizer Pipes

Rizer pipes Accessorises