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Stub End

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产品介绍


SPECIFICATIONS OF PIPE FITTING

Materials

Type

Outer Diameter

Wall Thickness

Standard

Austenitic

Duplex Steel

Nickel Alloy

Cobalt Alloy

Ferrite

EIbow/Tee/Reducer/Cap

≤2000mm;
≤DN2000;
≤80"

≤30.96mm;
≤Sch160

ASTM A403
ASTM A815
EN 10253-4
ASTM B366

Stub End

≤800mm
≤DN800
≤32"


Stub End is a connector commonly used in pipeline systems in conjunction with Lap Joint Flange. Its structure consists of a short tube body and a flanged end, and is usually used in pipeline systems that require frequent disassembly, maintenance or cleaning. Compared with traditional flange connections, when Stub End is used in combination with a loose flange, it can effectively reduce material costs while improving the flexibility and convenience of connection. It is an economical and practical way to connect pipelines. It is mainly used in low-pressure or non-high-temperature pipeline systems, and common application industries include: oil and gas, chemicals, electricity, pharmaceuticals, food and beverages, water treatment, ships, papermaking, metallurgy, etc. Especially in places with strong corrosion, frequent cleaning, or frequent disassembly and inspection, Stub End combined with the structural advantages of the loose flange can significantly improve the efficiency and economy of use.


Stub End


Pipe fitting production process

1.Cutting: cutting pipes according to size;

2.Forming: cold pressing/hot pushing bending, or die forging;

3.Welding (if split): grinding welds after welding;

4.Heat treatment: eliminating forming stress and improving mechanical properties;

5.Surface treatment: sandblasting, electroplating or coating with anti-corrosion layer;

6.Inspection: dimensional accuracy, pressure testing and non-destructive testing to ensure compliance with standards.

 

How do we ensure the quality of pipe fittings?

Raw Materials

Secondary inspection of raw materials
Our raw materials come from large factories such as Baosteel, TSINGSHAN, Yongxin...Each batch of raw materials requires MTC and PMI. After the raw materials arrive, we conduct PMI and other inspections again to ensure that they meet the requirements.

During Production

Traceability of the production process
Hongdi is equipped with CNC lathe, automatic laser cutting machine, 1,000tons hydraunlic press, elbow mandrel machine and other major productionequ equipment.
Each process is supervised by experienced engineers and technicians. Each link is supervised by professional qc inspectors and photographed for archiving. The entire process uses process cards to ensure accuracy and traceability.

Before Shipment

100% inspection before shipment

MTSCO has professional QC team to conduct a series of inspections and experiments on the fittings, including routine appearance, PMI, size, quantity, NDT and other inspections. At the same time, we also conducts mechanical testing, chemical composition analysis, intergranular corrosion and other laboratory tests. For welded pipe fittings we carry out 100% ultrasonic or radiographic testing of the raw material and pipe fittings.
In addition, we also accept third-party inspection, such as SGS, TUV, and BV.

Packaging and Container Loading

As A factory complexes supplier, MTSCO has many years of experience in packaging and containerization. Conventional packaging methods are, large one wrapped in cling film, small one molded or wrapped in bubble wrap. The end is protected by pearl cotton. The outside is packed in wooden box/pallet, and the cabinet is reinforced with wooden strips and ropes.
All inspection results and loading process will be documented with photos for your traceability requirements.


Related ProductsMore>>

  • Concentric Reducer

  • Cap

  • LR Elbow 90°

  • Tee

Products

Products

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