Introducing the stainless steel pipe fittings in the drainage pipeline and gas pipeline

The failure to meet the standards of elbow pipe fittings, unqualified pipe fittings, and inadequate welding of pipe fittings will all be the main reasons for pipeline bursting. Therefore, it is necessary to understand pipe fittings in the drainage pipeline and gas pipeline.

Structure of Drainage Pipes

(1) Classification of Drainage Pipes

Drainage pipe is a pipe used to receive, transport and purify rainwater and sewage in cities, factories and living areas, including industrial sewage, domestic sewage and rainwater. The sewage pipeline system is divided into three types: combined type, divided type and combined type according to the discharge method. The confluent type is to discharge industrial wastewater, domestic sewage and rainwater well with a common pipeline. The divided type discharges each kind of sewage through an independent drainage pipe. The combined type discharges the production sewage and domestic sewage that need to be treated through one pipeline, and discharges the production wastewater and rainwater that does not need to be treated through another pipeline. The drainage pipeline shall be laid in consideration of the local frozen soil depth.

(2) Material of Drainage Pipes

The general drainage pipe materials are reinforced concrete, concrete, plastic, cast iron, asbestos cement, ceramic and so on. Among them, reinforced concrete pipes and concrete pipes are commonly used.

(3) Attachments of Drainage Pipes

① The role of the inspection well is to help maintenance personnel enter the well to clear silt and check and repair. The inspection wells are made into circles, sectors, rectangles or polygons according to different situations and requirements.

②The node well is used to accept the sewage and wastewater in the well and output after confluence.

③Draining well, which is located at a place with a large drop, which outputs the received waste water and sewage after precipitation, is a well that reduces slope and has a purification effect.

④The flushing well is connected with the upper water pipe, which is used for flushing the matter in the well.

⑤ The corner well is set at the corner.

⑥ Special wells are located at the intersection of drainage pipes and other underground facilities.

⑦ Infiltration wells drain rainwater through underground infiltration methods.

⑧Inverted siphon is set to avoid obstacles, such as gullies, rivers, railways, etc.

Structure of Gas Pipelines

(1) Gas Pipeline Equipment

Gas pipeline equipment includes irrigation stations, pneumatic stations, valve wells, inspection wells, valves, pumping tanks (condensation tanks), sacrificial anodes, and standard stone piles.

(2) Pipe Material of Gas Pipelines

The gas pipes include steel pipes, seamless steel pipes, cast iron pipes (for low-pressure gas), and polyethylene plastic pipes (PE pipes).

(3) Components of Gas Pipelines

The fittings of the gas pipeline include full bearing T-shaped tube, full bearing cross tube, 45 ° elbow, 90 ° elbow, tapered pipe, etc.

When purchasing pipe fittings, the material of the pipe fittings needs to be tested, especially heating pipes, gas pipes and petrochemical pipes. Stainless steel pipe fittings are strong and not easy to break, which has a long service life.