Fire safety system
-New pipeline core technology developer-

Fire safety system

fire safety system

I. Current Situation of Pipeline Application

Traditional welding connection

1. The operation is very difficult and labor-intensive due to space constraints.
2. The high temperature open flame at the construction site is a high hidden danger point of fire.
3. High skill requirements for installers, high construction costs, many auxiliary facilities and consumables, and high maintenance difficulty

(twisted wire) threaded connection

1. The heavy stranded wire equipment is not convenient to transfer flexibly with the progress of the project, resulting in the need for all pipeline interfaces to be uniformly sleeved at fixed points and then transported to pipeline connection points, which is time-consuming and labor-consuming.
2. In order to thread, the pipe needs to increase the wall thickness, there is a "wall thickness excess" problem, large consumables, expensive
3. The twisted wire surface is rough, and the pipe thread is sealed for non-thread. The connection port needs to be filled with raw material tape and hemp wire. If the filling is not in place, leakage points will often occur.

Threaded connection pipe-galvanized pipe

1. Main ingredients: iron zinc plating (zinc Zn)
2. Product defects: in the atmospheric environment, easy corrosion and rust, accelerated corrosion in contact with water
3. Service life: 15-20 years
4. Installation construction: labor intensity, high difficulty
5. Use effect: the wall thickness of the pipe is large, the surface is easy to rust, pollute the wall, the inner wall of the pipe is easy to scale, and the inner diameter of the pipe is shrinking year by year. Rust dirt is easy to gather to the spray outlet under the action of water pressure, which often affects the spray effect of the spray head, or even directly blocked.

Trench connection

1. The heavy trench equipment is not convenient to transfer flexibly with the progress of the project, which leads to the need to unify the trench at the fixed point of all pipeline interfaces and then transport them to the pipeline connection point, which is time-consuming and labor-consuming.

2. national policy

Connection of overhead pipes

The connection of overhead pipeline should adopt grooved connector (clamp), thread, flange, clamping, etc., instead of welding connection. When the pipe diameter is less than or equal to DN50, thread and clamping connection shall be adopted; when the pipe diameter is less than DN50, thread and clamping connection shall be adopted; when the installation space is small, groove connection shall be adopted.

3. Application Scenarios

① Fire sprinkler
② Overhead pipeline

Fourth, the choice of connection mode

● Connection mode of combination of clamping and groove:
DN15-DN50 clamping connection,>DN50 is groove connection

5. Solutions

Thin-wall zinc-plastic carbon steel pipe
The construction is fast, standardized and the quality is stable (the traditional thread process takes 5 minutes, and the card pressure only takes 7 seconds).
● Performance improvement (traditional process 2.5Mpa, clamping type 4.0Mpa, and does not damage the galvanized layer).
● The construction period is greatly shortened, which is conducive to the return of funds and improve the turnover rate of project funds.
● The lightweight design of pipe fittings saves nearly 50% of raw materials than traditional galvanized pipes, which is in line with the national energy saving and emission reduction development strategy.

VI. Installation Standards

● GB/T29038-2012 -1: Technical Specification for Thin-walled Stainless Steel Piping
● 22S407-2 "thin wall stainless steel water supply pipe installation"
● CECS153-2003 "technical specification for building water supply thin-walled stainless steel pipe engineering"