Our company is committed to offering customers with high-quality, safe electrofusion reducing coupler, UPVC Faucet Coupler, hdpe female threaded coupling at competitive prices, and creating satisfactory services for every customer. We respect people and nature, protect the environment and use what we are good at to contribute to society. We have the three major advantages of integrating talents, utilizing technology and capital operation. We share and win with other enterprises in symbiosis, and have come out of a unique sustainable development path. Our enterprise spirit has the cultural connotation of surpassing ourselves, seeking truth and innovation, and continuing to lead.

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.

We actively promote the company's high-quality historic leapfrog development to build a world-class manufacturer of the Hot Dipped Galvanised Carbon Steel Backing Ring. We serve individuals, carefully select for each customer, improve the quality of service, we will try our best to achieve your needs. We have established long-term and stable cooperative relationships with many regional wholesalers and hundreds of end customers.

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