Factory Large Size Carbon Steel Tee Casting Technique for pipe fittings Gas/Oil Construction Oil/Gas Construction

PTFE powder with high performance is used to push (squeeze) into the pipe, the surface is chemically treated, and then it
is lined into seamless steel tube (the outer diameter of the liner is slightly larger than the inner diameter of the steel tube
1.5-2mm) to form a seamless liner.To relieve the stress, it is placed in a furnace and heated to 180 degrees for constant
temperature treatment, so that it is suitable for use in temperatures below 180 degrees.At the same time, the axial tensile
strength of push (squeeze) pressure pipe is obviously better than that of winding pipe, which can be used in micro-negative
pressure pipeline.
Industries:
Acid Transfers, Caustic & Chlor- Alkali, Chemicals, Pharmaceuticals, Water Treatment
Feature & Benefits:
1.The piping and fittings were tested hydraulically at 1.5 times the design pressure.
2.Where PTFE lining is involved, 100% integrity test is conducted after hydrostatic test, and the leakage point test method is
electric spark test.
3.lining material: PTFE,PFA,FEP,PVDF,PO,PP,PE
Design standard:
Nominal diameter: DN25~DN1200
Length: ≤6000mm
Medium: strong acid, strong alkali, organic solvent, strong oxidant, toxic, volatile, flammable chemical medium
Connection: flanged
Lining Specifications:
Lining Material
We offer lining materials like PTFE,PFA,FEP,PVDF,PO,PP,PE
Temperature:
PTFE Max : 260°C ,
FEP Max : 204°C ,
PFA Max : 260°C ,
PVDF Max : 140°C ,
PO Max : 80°C
PE Max : 70°C ,
PP Max : 120°C
Lining Thickness
Min. 3.0mm
Spark Test
Body liners & all wet parts are tested for spark at 15,000 Volts

I. Product Characteristics

1. Q: What are the outstanding features of PTFE lined steel pipes?
A: PTFE lined steel pipes have excellent corrosion resistance and can resist a variety of corrosive media such as strong acids, strong alkalis, and strong oxidants. At the same time, it has good high-temperature resistance and can be used in a wide temperature range. In addition, the inner wall of this steel pipe is smooth, not easy to scale, and has low fluid resistance, which can effectively improve the transportation efficiency.

2. Q: How long is the service life of this kind of steel pipe?
A: The service life of PTFE lined steel pipes is long, generally more than 10 years. The specific service life depends on the use environment and maintenance conditions.

II. Application Scenarios

1. Q: In which fields are PTFE lined steel pipes applicable?
A: Widely used in chemical, petroleum, pharmaceutical, power, metallurgy and other industries, especially in occasions where corrosive media are transported.

2. Q: Can it be used in high-temperature environments?
A: Yes, PTFE lined steel pipes have good high-temperature resistance and can be used in certain high-temperature environments. However, the specific applicable temperature range needs to be determined according to different product specifications and use requirements.

III. Installation and Maintenance

1. Q: What are the precautions for installing PTFE lined steel pipes?
A: During installation, avoid strong impacts and twists, and ensure that the pipeline connection is firm and the seal is good.
At the same time, pay attention to protecting the lining layer of the pipeline to avoid scratches and damages.

2. Q: How to carry out daily maintenance?
A: Regularly check the operation status of the pipeline. If there are problems such as leakage, deal with them in time. When cleaning the pipeline, use mild detergents and avoid using corrosive substances such as strong acids and strong alkalis.

IV. Quality and After-sales

1. Q: Is your product quality guaranteed?
A: Our PTFE lined steel pipes have undergone strict quality inspections and meet relevant national standards and industry specifications. We provide quality assurance to ensure that the product performance is stable and reliable within the specified service life.

2. Q: What if there is a quality problem with the product?
A: If a quality problem is found during use, please contact our customer service personnel in time. We will provide solutions such as repair, replacement or refund according to the specific situation.