Stub end

The stub end in PVDF pipe fittings is a connecting component, primarily used to connect different parts of the PVDF piping system or to other equipment or piping systems. It is made of PVDF material, which has wonderful corrosion resistance and chemical stability, making it suitable for various industrial application environments. There are usually several types of stub ends, including blind flanges, welded flanges, threaded flanges, and flat-welded flanges, etc.

  • Stub end
  • Stub end
  • Stub end
  • Stub end
  • Stub end

Name: PVDF stub end

Material: PVDF

Pressure Rating: 0.6MPa, 1.0MPa

Connection: Threaded

Color: White

Standard: ISO 10931

Density: 1.17~1.79g/cm³

Melting Point: 172°C

Long-term Working Temperature Range: -40~150°C

Heat Deflection Temperature: 112~145°C

Oxygen Index: 46%

Crystallinity: 65%~78%

Product parameter introduction
Stub end
Stub End
Nominal outer
diameter
De
Outer diameter
D1
Outer diameter
D2
Flange diameter
D3
Flange thickness
H1
H2 r Minimum total length
32 32 26.6 70 14 16 3 60
40 40 33.2 80 14 16 3 60
50 50 41.6 90 14 18 3 60
63 63 52.6 105 16 18 3 80
75 75 62.6 122 16 21 3 30
90 90 75.0 138 17 20 4 80
110 110 91.8 158 18 25 4 85
125 125 104.2 158 25 26 4 85
140 140 116.8 188 25 28 4 100
160 160 133.4 212 25 28 4 100
180 180 150.2 212 30 30 4 100
200 200 166.8 268 32 40 4 120
225 225 187.6 268 32 30 4 120
250 250 208.6 320 35 40 4 120
280 280 233.6 320 35 30 4 120
315 315 262.8 370 35 40 4 120
355 355 296.0 430 40 40 6 150
400 400 333.6 482 46 45 6 150
450 450 389.0 530 56 50 6 180
500 500 432.2 585 60 50 6 180
560 560 490.0 635 64 50 6 200
630 630 560.0 685 68 50 6 210
Product advantages

1. Low water absorption rate, not easily affected by moisture in damp or water treatment applications, always maintains stable performance and dimensions, strong stability, not easily affected by environmental factors and media, and has a long service life.
2. Capable of withstanding various corrosive media, including acid and alkali solutions, organic solvents, and oxidizers, can be in long-term contact with corrosive media without dissolving, corroding, or deforming.
3. Has good high-temperature resistance performance, can still maintain its strength and stability in high-temperature environments, suitable for applications under high-temperature process conditions.
4. PVDF material is easy to process and mold, suitable for the needs of various complex pipeline systems, and can be customized according to specific design requirements.
5. Has good resistance to ultraviolet light performance, ultraviolet radiation causes aging, discoloration, or degradation of plastic materials, while PVDF stud end are not easily aged or discolored by ultraviolet radiation, commonly used in outdoor pipeline systems or equipment.
6. Has wonderful electrical insulation performance, can effectively prevent the flow of electricity in electrical equipment or pipeline systems, prevent current leakage or the loss of dielectric, reduce the risk of equipment damage or fire and other electrical accidents, suitable for electrical equipment or pipeline systems that require insulation protection.

Applications
01 / 04
  • Chemical Production and Processing
  • Semiconductor Manufacturing
  • Water Treatment
  • Pharmaceutical Industry
Chemical Production and Processing
In the process of chemical production and processing, it is often necessary to handle various corrosive media and chemicals. The wonderful corrosion resistance of PVDF flange heads allows them to withstand a variety of corrosive media such as acid and alkali solutions, organic solvents, and oxidizers when connecting various chemical equipment, such as reactors, distillation columns, and storage tanks. This ensures the safe transportation and processing of the media.
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Semiconductor Manufacturing
In the semiconductor manufacturing process, PVDF flange heads are commonly used to connect various chemical transportation pipelines, such as ultra-pure water, acid and alkali solutions, and corrosive gases. Due to the chemical stability and inertness of PVDF, it can ensure that the pipeline system does not release harmful substances or contaminate the semiconductor production environment.
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Water Treatment
In the water treatment process, PVDF flange heads are used to connect various treatment equipment, such as filters, reverse osmosis membranes, and flotation equipment. The corrosion resistance and chemical stability of PVDF flange heads enable them to withstand various chemicals and treatments used in the water treatment process, ensuring the effectiveness of water quality treatment and the stable operation of equipment. For example, in a sewage treatment plant, PVDF flange heads can be used to connect the gas transportation pipelines in the flotation equipment to ensure the gas separation effect during the sewage treatment process.
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Pharmaceutical Industry
In the pharmaceutical industry, PVDF flange heads are commonly used to connect various production equipment, such as reactors, separators, and dryers, to ensure the purity and safety of the drugs. For example, in a pharmaceutical factory, PVDF flange heads can be used to connect the mixers and heat exchangers in the reactors to ensure the stability and reliability of the drug mixing and heating processes.
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Color your world with excellence and innovation—Jiangyin Huada, your trusted source for premium color masterbatch, high-quality plastic pipes, and fittings.

It is because of our unwavering commitment to the pipe and pipeline industry, our emphasis on product diversity, the importance we place on product quality, and our dedication to green environmental practices and sustainable development that our brand has gradually gained recognition. Our products have earned the trust and praise of numerous customers, and our brand has become a symbol of reliability and trustworthiness.

As a professional China OEM PVDF Stub End Supplier and PVDF Stub End company, Our brand story is one of continuous progress and innovation. We will continue to create more value for more customers and contribute to the development of the industry. We believe that through sustained efforts and adherence to our principles, our brand will continue to shine brightly and make a mark internationally.

Jiangyin Huada Polyester Plastic Co., Ltd.
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