The company has been adhering to the business philosophy of "establishing excellence and winning by quality", and has been committed to the development, research and production of HDPE Butt Fusion Fittings, PVC Saddle Clamp, poly compression reducer technical equipment for many years, led by independent research and development, and constantly introduces, learns and improves HDPE Butt Fusion Fittings, PVC Saddle Clamp, poly compression reducer technology. While consolidating the traditional export market, we also increase our efforts to develop new markets. Our company unremittingly strives to create values for customers by providing them with high quality and cost-effective steel products. We sincerely loof forward to cooperating with you in the forthcoming future! We always adhere to the development philosophy of "fulfillment of mission, innovation and development, openness and integration, standardization and pragmatism, and realization of value".

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.

With the help of advanced business philosophy and continuous technological innovation, we have developed rapidly in the As2129 Table D / Table H / Table E Galvanized Forged Steel Flanges Backing Rings industry in recent years. Our current success is largely due to our dependable products and warm services, which helped us win the reputation in the market. We have been recognized by our customers with the pursuit of innovation, high-quality service commitment and the production process of excellence.

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