While striving to create a better society, our strong sense of responsibility allows us to lead our PP Compression Female Adaptor, uPVC Gasketed Flange Adaptor, Electrofusion flange fittings towards the trend of environmental protection and energy saving. We strive to achieve harmony with nature and benefit society in order to provide support for the benign progress of society. We form a two-wheel drive through management innovation and technological innovation to strengthen the core competitiveness of the enterprise. We take products that cater to and meet customer needs as our responsibility, and have an independent research and development department to ensure that products continue to be updated. Facing the future, our company will continue to uphold the enterprise spirit of 'innovation, professional, pragmatic and enterprising', establish a scientific outlook on development, keep improving, and create value for customers.

HDPE Fittings, Steel Backup flange, Steel Backing Rings, HDPE backing flange, HDPE backup flange, HDPE slip on flange, GI Backing Rings

HDPE Backup Flange, also called HDPE Backing Flange, are used in conjunction with "HDPE flange adaptor". The steel backup Flange is slipped over the pipe, prior to the stub end being welded on.

The HDPE flange adaptor forms the seal against the nozzle / Valve / flange etc that it is meeting. The HDPE backing flange is free to rotate until such time as it is bolted up.

SUNPLAST HDPE Backup flange can be supplied in diameters ranging from 50mm to 1200mm in PN10 & PN16. They are forged by carbon steel material or stainless steel material, be drilled into EN1092 standard, the HDPE backing flange made by carbon steel can also be coated by PP material or galvanization in surface, to prevent them from rusting.

SUNPLAST keeps mass stock in demand for regular sizes, and customers’ urgent demand & prompt shipment request can be satisfied.

More brief details as below:

Product Specifications

Steel Backup Flange: available from DN50mm ~DN1200mm

Pressure: PN10 & PN16

Material: Carbon steel or Stainless steel

Surface Finish: PP coated or galvanization

Standard: EN1092

EN1092 Standard HDPE backing flange - PN10

(Noted: the technical data is just for reference, some data may change, if you need exact data, then please contact us directly)

EN1092 Standard HDPE backing flange - PN16

(Noted: the technical data is just for reference, some data may change, if you need exact data, then please contact us directly)

Our Product Range

SUNPLAST is a professional manufacturer of HDPE fittings over 20 years in China, and here in SUNPLAST, all customers can find the best solution of fittings for their pipeline systems.

SUNPLAST HDPE butt fusion fittings can be supplied in a diameter ranging from dn50 to dn800mm in both SDR11 & SDR17, with regular types: HDPE end caps, HDPE reducer, HDPE 90 degree elbow, HDPE 45 degree elbow, HDPE 22.5 degree elbow, HDPE equal tee, HDPE reducing tee, HDPE flange adaptor, G.I. backing rings.,etc

Contact Us

If you have any requirements on HDPE 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.

Based on the PP Coated Backing Ring (Flange) for PE Pipe industry, our company uses its own advantages, integrates superior resources, upholds the concept of win-win cooperation, and actively expands into new areas. We are committed to meeting customer needs and cultivating core competencies to become an international standard enterprise. We have more than 10 years exported experience and our products have expored more than 30 countries around the word.

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