
PVC-U/PVC Vanstone Flange for Chemical Industry DN40 DN50 DN65 DN80
Description
Technical Parameters
With many years of production experience in the uPVC Female Adaptor, Electrofusion Flange, PVC Faucet Reducer industry, a professional management team and after-sales technical support team, we will serve you wholeheartedly and develop together with you. We have the enterprising consciousness of striving for perfection and first-class, and the harmonious concept of serving the society and benefiting the employees. We are committed to technological innovation, the pursuit of quality and work wholeheartedly with customers to create a better future.
uPVC Pipe Fittings, uPVC Solvent Weld Fittings, uPVC Vanstone Flange, PVC Vanstone Flange, uPVC Flange Adaptor And Backing Rings, uPVC Solvent Vanstine Flange

uPVC Vanstone Flange are a “separating” flange, which including two parts: uPVC Flange Adaptor & uPVC backing rings. The uPVC flange adaptor has a slip socket ends for solvent weld, the other end is stub end, which allow to connect with the other flanged accessories, by using uPVC backing rings.
The uPVC Vanstone Flange with solvent weld is made of high quality uPVC material, which is regularly UV- stability, and suitable for both indoor & outdoor use. The uPVC flange fittings are suitable for cold water supply, with max. Working temperature 60℃.
The uPVC Vanstone Flange flange fittings is regularly provided in grey color, but the other colors are also available as per customers’ request.
SUNPLAST uPVC solvent Vanstone Flange fittings can be provided in a size from 50mm to 500mm, with a normal working pressure of PN10 bars & PN16 bars, and are manufactured and tested in accordance with the domestic standard GB/T10002.2-2003, at the same time, they can also comply to international standards of ISO 4422-3:1996; ISO 1542-3:2009.
More brief details as below:
Product | uPVC Vanstone Flange, PVC Vanstone Flange, uPVC Flange Adaptor And Backing Rings, uPVC Solvent Vanstine Flange |
Specification | DN50mm ~DN500mm |
Pressure ratings | PN10 & PN16 |
Material | Unplasticized polyvinyl chloride |
Manufacturing Process | Injection molded |
Color | Grey, Blue, White, or as per customers request. |
Manufacturing Standard | GB/T10002.2-2003, ISO 4422-3:1996, ISO 1542-3:2009, DIN 8062 |
Samples available | Yes, samples are available, but charged. |
Packing method | Cartons |
MOQ | Negotiable |
Customized Logo available (OEM Service) | For small quantity of order, customer logo can be marked on the fittings by laser marking or sticker. For big quantity of order, customer logo can be embossed on the fittings. |
Production lead time | Mass stock available for regular sizes About 10 days for a 20ft container, 20 days for a 40ft container |
Warranty time | 5 years for normal use |
Payment term | T/T, L/C, DP, Western Union, or negotiable |
FOB loading port | Ningbo/Shanghai China |
Place of origin | Ningbo, China |
Product Specifications
uPVC Vanstone Flange Fittings: available from DN50mm ~DN500mm
Pressure: PN10 bars & PN16 bars
Color: Grey, Blue, White, or as per customer request.

Size De | Dimensions | |||||||
D0 | D1 | d0 | d1 | da | H | L | n | |
50 | 148.00 | 110.00 | 56.60 | 50.33 | 18.00 | 14.50 | 35.00 | 4 |
63 | 165.60 | 125.00 | 69.60 | 63.34 | 18.00 | 15.60 | 42.30 | 4 |
75 | 185.00 | 145.00 | 82.60 | 75.35 | 18.00 | 16.10 | 47.80 | 4 |
90 | 194.90 | 160.00 | 99.30 | 90.38 | 18.00 | 18.20 | 54.50 | 8 |
110 | 219.00 | 180.00 | 120.30 | 110.42 | 18.00 | 20.00 | 66.10 | 8 |
125 | 248.00 | 210.00 | 136.60 | 125.52 | 18.00 | 19.30 | 74.10 | 8 |
140 | 248.50 | 210.00 | 151.60 | 140.58 | 18.00 | 21.00 | 83.00 | 8 |
160 | 284.00 | 240.00 | 177.60 | 160.62 | 22.00 | 26.00 | 91.20 | 8 |
200 | 340.00 | 295.00 | 220.50 | 200.90 | 22.00 | 29.80 | 113.00 | 8 |
225 | 340.00 | 295.00 | 245.50 | 226.02 | 22.00 | 32.00 | 123.00 | 8 |
250 | 393.00 | 350.00 | 277.00 | 251.15 | 22.00 | 34.00 | 138.00 | 12 |
280 | 397.00 | 350.00 | 305.40 | 281.46 | 22.00 | 35.00 | 162.00 | 12 |
315 | 445.00 | 400.00 | 346.30 | 316.55 | 22.00 | 40.00 | 157.70 | 12 |
355 | 510.00 | 460.00 | 386.60 | 356.63 | 24.00 | 40.00 | 193.50 | 16 |
400 | 570.00 | 515.00 | 432.00 | 401.60 | 24.00 | 43.80 | 200.00 | 16 |
450 | 620.00 | 565.00 | 486.00 | 451.94 | 27.00 | 45.00 | 245.00 | 20 |
500 | 670.00 | 620.00 | 536.50 | 502.80 | 27.00 | 50.00 | 268.00 | 20 |
(Noted: the technical data is just for reference, some data may change, if you need exact data, then please contact us directly)
Benefits Of uPVC Solvent Weld Joint Fittings
uPVC pipes & fittings have gained in popularity and has become a top choice in plumbing around the world. it is a very resilient material. It is abrasion-resistant, chemical resistant, and can withstand many different weather conditions. All of these factors combine to make PVC a long-lasting material that has the ability to be used for about 100 years
● Exceptional Strength and Ductility
● High Impact Resistance
● Larger Bore – Better flow characteristics
● Smooth Bore – Low flow resistance
● Corrosion Resistant
● Guaranteed Stiffness > SN10,000
● Light Weight – Installation savings
● Material & Energy efficient – 100% Recyclable
Manufacturing Facilities
SUNPLAST has been engaging in manufacturing of uPVC pipe fittings over 15 years. The factory has introduced over 30 sets advanced production injection machines.
As a leading manufacturer in China, SUNPLAST owns mature technology, advanced production machine, professional workers & completed QC system. All uPVC fittings are manufactured strictly in compliance with national standards and international standards.

Quality Control
As a premier manufacturer in China, we committed to supply the best quality uPVC pipe fittings to our customers. Every production processes from the start to end are strictly monitored and recorded. Well-trained staffs are exercising inspection and quality control using calibrated equipment.

All tests are carried out in our laboratory and the results have been properly recorded. We assure that only products which pass our stringent testing in compliance with the relevant standard’s requirements will only be released or delivered to our customers.
Contact Us
If you have any requirements on uPVC fittings, or any question on our fittings, please contact us freely. SUNPLAST has well trained staff who are available to address your needs and provide technical support to all sectors when needed.

With superb skills and perfect quality assurance system, we are in a leading position in the industry of PVC-U/PVC Vanstone Flange for Chemical Industry DN40 DN50 DN65 DN80 and are deeply loved by customers. It is the common belief of all our colleagues in our company to think of the source after drinking water and return sincerely. Our company adheres to the corporate policy of 'quality first, technology first, customer first, reputation first' and the management philosophy of 'people-oriented, technology rising', and strives to create a higher value for customers, employees and society.
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