
Forged Steel Slip on Flanges
Description
Technical Parameters
We have a number of employees with rich working experience and good execution ability, adhere to the principle of 'opening up the market with quality, winning customers with integrity', and strive to create high-quality and first-class PP Compression Flange, uPVC Flange Adaptor, hdpe tee fittings. Our company returns users with high-quality products, excellent service and preferential price. We do everything well for our customers and meet their needs to the maximum extent. Our business performance has improved by leaps and bounds and our core competitiveness has increased significantly.
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 | HDPE backup flange,Steel Backup flange, Steel Backing Rings, HDPE backing flange, HDPE backup flange, HDPE slip on flange, GI Backing Rings |
Specification | DN50~DN1200mm |
SDR/pressure ratings | PN10 & PN16 |
Material | Carbon Steel or Stainless Steel |
Manufacturing Process | Forged |
Surface finish | Coated by PP material, or galvanization |
Manufacturing Standard | EN1092 standard, customized-made available |
Samples available | Yes, samples are available, but charged. |
Packing method | Wooden cases |
MOQ | Negotiable |
Customized Logo available (OEM Service) | Yes |
Production lead time | HDPE backing rings in EN1092 standard are possible in stock 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
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
Size | ΦD | K | Φd | WT | ΦE | n |
50 | 150 | 110 | 55 | 12 | 14 | 4 |
63 | 165 | 125 | 68 | 14 | 18 | 4 |
75 | 185 | 145 | 80 | 14 | 18 | 4 |
90 | 200 | 160 | 95 | 14 | 18 | 8 |
110 | 220 | 180 | 115 | 15 | 18 | 8 |
125 | 250 | 210 | 130 | 15 | 18 | 8 |
140 | 250 | 210 | 145 | 15 | 18 | 8 |
160 | 285 | 240 | 165 | 16 | 22 | 8 |
180 | 285 | 240 | 185 | 16 | 22 | 8 |
200 | 340 | 295 | 205 | 16 | 22 | 8 |
225 | 340 | 295 | 230 | 16 | 22 | 8 |
250 | 395 | 350 | 255 | 18 | 22 | 12 |
280 | 395 | 350 | 285 | 18 | 22 | 12 |
315 | 445 | 400 | 320 | 19 | 22 | 12 |
355 | 505 | 460 | 360 | 20 | 22 | 16 |
400 | 565 | 515 | 408 | 22 | 26 | 16 |
450 | 615 | 565 | 458 | 24 | 26 | 20 |
500 | 670 | 620 | 508 | 26 | 26 | 20 |
560 | 780 | 725 | 568 | 29 | 30 | 20 |
630 | 780 | 725 | 638 | 29 | 30 | 20 |
710 | 895 | 840 | 720 | 37 | 30 | 24 |
800 | 1015 | 950 | 810 | 41 | 33 | 24 |
900 | 1115 | 1050 | 910 | 45 | 33 | 28 |
1000 | 1230 | 1160 | 1010 | 50 | 36 | 28 |
1200 | 1455 | 1380 | 1210 | 58 | 39 | 32 |
(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
Size | ΦD | K | Φd | WT | ΦE | n |
50 | 150 | 110 | 55 | 12 | 14 | 4 |
63 | 165 | 125 | 68 | 14 | 18 | 4 |
75 | 185 | 145 | 80 | 14 | 18 | 4 |
90 | 200 | 160 | 95 | 14 | 18 | 8 |
110 | 220 | 180 | 115 | 15 | 18 | 8 |
125 | 250 | 210 | 130 | 15 | 18 | 8 |
140 | 250 | 210 | 145 | 15 | 18 | 8 |
160 | 285 | 240 | 165 | 16 | 22 | 8 |
180 | 285 | 240 | 185 | 16 | 22 | 8 |
200 | 340 | 295 | 205 | 16 | 22 | 12 |
225 | 340 | 295 | 230 | 16 | 22 | 12 |
250 | 405 | 355 | 255 | 18 | 26 | 12 |
280 | 405 | 355 | 285 | 18 | 26 | 12 |
315 | 460 | 410 | 320 | 19 | 26 | 12 |
355 | 520 | 470 | 360 | 20 | 26 | 16 |
400 | 580 | 525 | 408 | 22 | 30 | 16 |
450 | 640 | 585 | 458 | 24 | 30 | 20 |
500 | 715 | 650 | 508 | 26 | 33 | 20 |
560 | 840 | 770 | 568 | 29 | 36 | 20 |
630 | 840 | 770 | 638 | 29 | 36 | 20 |
(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 are aimed to try our utmost to provide our customers with excellent Forged Steel Slip on Flanges and satisfied services more than they desire. In line with the business philosophy of 'let users rest assured' and strictly abide by the principle of 'valuing contracts and keeping promises', we hope to cooperate sincerely with friendly traders from all walks of life and establish long-term trade relations. Over the years, our company has always taken "technological innovation, fine service and customer first" as our business philosophy.
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