We return the investment to our shareholders through the growth of our business scale and provide quality uPVC Cross, poly compression fittings, UPVC Gasketed Fittings and services to our customers. We are making steady progress towards professionalization and internationalization. Our products have been exported to many countries and regions, and enjoy high international praise. The company has first-class production and processing equipment, first-class product quality, first-class scientific and technological team, and first-class after-sales service system. While pursuing "high quality and high standards", combining with the domestic and international environment and the actual needs of different industries, the technical department has made unremitting efforts to continuously improve our products. Our code of conduct is to be sensible and disciplined, to be diligent and responsible, to work together and to work hard. We pursue the business tenet of all-round customer service and take the customer's demand as the working goal of our company.

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.

Professionalism and dedication are the basis for our strength and growth. We rely on professional standards and dedication to lead the development of the Gear Operated DN50 Pn16 China Factory Butterfly Valve Wafer Butterfly Valve EPDM Backup Flange Butterfly Valve Ductile Iron Wafer Flanged Lug Butterfly Valve industry. Our overall competitive strength has been significantly enhanced, and we are striving to create famous brand products and further improve product awareness. Our company promises to customers that our price is reasonable, production cycle is short and service is considerate.

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