UL Listed Pipe

UL listed pipe is a type of pipe that is specifically designed for fire fighting applications. The pipe is made from materials that are resistant to high temperatures and pressure, making it ideal for use in fire suppression systems. The pipe is also fitted with special fittings that allow it to be quickly connected to fire hoses and other fire fighting equipment. In addition, the pipe is regularly inspected and tested by UL, an independent safety organization, to ensure that it meets the highest standards for safety and performance. As a result, UL listed pipe for fire fighting is the preferred choice for many commercial and industrial buildings.

Why choose tuspipe?

Since 1998, Tianjin United Steel Pipe Co., Ltd (TUSPIPE) has been committed to supplying high-quality line pipes.

With over 500,000 tons annual production capacity, the company serves various fields and industries, such as oil & gas exploitation and transmission, ship & auto-building, water & electricity, environmental protection, mechanical engineering, infrastructure construction and etc.

TUSPIPE places a premium on product quality and rigorous product quality control. In order to maintain good product quality, the company has established a Test & Inspection Center since 2004. With a series of state-of-the-art tests and inspection equipment, the test & inspection center is able to perform the tensile tests, hydro tests, impact tests, DWTT, etc.

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UL Listed Pipe Technical Parameters

The UL listed pipe is a type of pipe that is commonly used in fire fighting systems. It is also known as a standpipe. The fire sprinkler pipe is used to connect the fire fighting equipment to the water supply. Many different types of coatings are available for the fire sprinkler pipe. The most common type of coating is galvanizing. The galvanizing will protect the pipe from corrosion. The other type of coating that is available is FBE. The FBE coating will protect the pipe from UV rays and will also provide a barrier against chemicals. The other type of coating that is available is varnish coatings. The varnish coatings will provide a barrier against water and will also provide a barrier against corrosion. The color of the fire sprinkler pipe is usually red or orange. The zinc silver color is also available. The coating thickness for the fire sprinkler pipe is 250 microns to 550 microns. The working temperature for the fire sprinkler pipe is -30 degrees Celsius to 80 degrees Celsius (-22 degrees Fahrenheit to 176 degrees Fahrenheit). The working pressure for the fire sprinkler pipe is 0.1 megapascals to 0.25 megapascals. There are three types of

Welding joints are strong and secure, but they require special equipment and training to create. Threaded connections are easy to create and can be disassembled if necessary, but they are not as strong as welding joints. Grooved connections are similar to threaded connections, but they provide a better seal against leaks. Flanged connections are the strongest type of connection, but they are also the most difficult to create. Ultimately, the best connection for a given application will depend on the requirements of the job.

Manufacturing Procedures of UL Listed Pipe

Generally, ERW is the most common method of manufacturing UL-listed pipes for fire fighting. This technology was developed in the 1930s and was used extensively in coil-to-coil welding. As coil ends were welded, lap coils were formed that needed to be trimmed before further processing could continue. Today, advances in high-frequency current welding have made it possible to produce ERW pipe that does not require coil-to-coil welding. This process begins with a flat coil of steel being unwound and passed through consecutive sets of rollers that progressively shape it into a tubular product. As the coil emerges from each set of rollers, it passes through an electrode that uses a high-frequency current to weld the edges together, thereby creating a welded pipe product. Afterward, various heat treatments may be applied to achieve desired strength characteristics for the finished product. The high quality and versatility of ERW pipe make it ideal for a variety of applications, including fire fighting, oil and gas transmission, structural tubing, and construction.

Different Connection Types of UL Listed Pipes

There are several types of connections used in UL Listed fire sprinkler piping system. The most common are welding joints, threaded connections, grooved connections, and flanged connections. Each type has its own advantages and disadvantages, so it is important to choose the right one for the job at hand.

Test and Inspection on UL Listed Pipe

To ensure that our UL Listed pipe for fire fighting meets the highest standards of quality and safety, we subject it to a rigorous series of tests during production. First, we perform a chemical analysis to check the composition of the material. Then, we conduct a tensile test to measure the strength of the pipes under tension. Next, we bend the pipes to see how well they retain their shape. Finally, we flatten the pipes to check for any weak spots or flaws. We also hydrostatic test the pipes by filling them with water and checking for leaks. Finally, we use weld seam ultrasonic or electromagnetic testing to ensure that the welds are strong and free from defects. By subjecting our fire sprinkler pipe to these tests, we can be confident that it meets the highest standards of quality and safety.

Dimensions and Sizes of UL Listed Pipe for Fire Fighting

N.D.		O.D.		SCH 10				SCH 30/40
N.D.		O.D.		WALL THICKNESS		NOMINAL WEIGHT		WALL THICKNESS		NOMINAL WEIGHT
(mm)	(inch)	(mm)	(inch)	(mm)	(inch)	(kg/mtrs)	(lbs/ft)	(mm)	(inch)	(kg/mtrs)	(lbs/ft)
15	1/2	21.3	0.84	—-	—-	—-	—-	2.77	0.109	1.27	0.85
20	3/4	26.7	1.05	2.11	0.083	1.28	0.96	2.87	0.113	1.69	1.13
25	1	33.4	1.32	2.77	0.109	2.09	1.41	3.38	0.133	2.5	1.68
32	1-1/4	42.2	1.66	2.77	0.109	2.69	1.81	3.56	0.14	3.39	2.27
40	1-1/2	48.3	1.9	2.77	0.109	3.11	2.09	3.68	0.145	4.05	2.72
50	2	60.3	2.38	2.77	0.109	3.93	2.64	3.91	0.154	5.45	3.66
65	2-1/2	73	2.88	3.05	0.12	5.26	3.53	5.16	0.203	8.64	5.8
80	3	88.9	3.5	3.05	0.12	6.46	4.34	5.49	0.216	11.29	7.58
90	3-1/2	101.6	4	3.05	0.12	7.41	4.98	5.74	0.226	13.58	9.12
100	4	114.3	4.5	3.05	0.12	8.37	5.62	6.02	0.237	16.09	10.8
125	5	141.3	5.56	3.4	0.134	11.58	7.78	6.55	0.258	21.79	14.63
150	6	168.3	6.63	3.4	0.134	13.85	9.3	7.11	0.28	28.29	18.99
200	8	219.1	8.63	4.78	0.188	25.26	16.96	7.04	0.277	36.82	24.72
250	10	273.1	10.75	4.78	0.188	31.62	21.23	7.08	0.307	51.05	34.27

What is UL lISTED?

UL (Underwriters Laboratories) is a global safety certification company that tests products and writes standards for product safety. The UL mark is proof that a product has been tested by UL and meets the safety requirements in UL’s Standards for Safety. Products that have the UL mark have undergone rigorous testing and are regularly inspected to ensure they continue to meet UL’s safety standards. UL Listed products are some of the safest products on the market and are trusted by consumers and businesses worldwide. When you see the UL mark on a product, you can be sure it meets the highest standards for safety and quality.

Marks on UL Listed Pipe for Fire Fighting

The UL Listed fire pipe body is marked with the following information: name of manufacturer, pressure, heat number, steel grade, and the UL Listed certification mark. The nominal pipe sizes and length are also included in the fire pipe body. The schedule or model reference may be included on the fire pipe body as well. This information is important to ensure that the fire pipe is installed properly and is up to code. The UL Listed certification mark ensures that the fire pipe has been tested and meets all safety standards.

The Reason Why UL Listed Pipes for Fire Fighting are in Red

The purpose of a fire sprinkler system is to provide water to suppress or extinguish a fire. The system is usually located on the roof or the top floors of a building, and the pipes that carry the water are typically painted red so that they are easily visible in the event of a fire. Fire sprinklers are usually activated by heat, and the water is discharged through sprinkler heads that are located throughout the building. In most cases, only the sprinklers closest to the fire will activate, which minimizes water damage. Fire sprinklers are an essential part of any fire safety system, and their use can help to save lives and property.