Steel Backup Flange/Steel Backing Rings

• Customization: Available
• After-sales Service: 1 Years
• Warranty: 1years
• Model NO.: DN50~DN1200mm
• Material: Carbon Steel
• Connection: Flange
• Transport Package: Wooden Box Package or Palletizing
• Specification: 20-800
• Trademark: SUNPLAST OR OEM
• Origin: China
• HS Code: 3917400000
• Production Capacity: 8000ton/Year

Product Description

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)


HDPE Fittings SUNPLAST Can Offer
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



Raw Material
Raw material with excellent performance is the most import element to manufacture the topping quality fittings. To guarantee the superior quality of our HDPE fittings, SUNPLAST only adopts TOP QUALITY PE100 material from worldwide reputed factories that are approved by PE100+ association.The PE100 materials we regular use are: HE3490-LS from Borealis, P6006 from Sabic & YGH041T from Sinopec.
Those PE100 materials are certified as the top raw material by the professional in this vocation. The preferable performance of those materials and their stability establish the high quality station of SUNPLAST HDPE fittings products at all the while.
Manufacturing Facilities
SUNPLAST is a ISO9001 certificated manufacturing factory. As a premier manufacturer of HDPE fittings, the factory has introduced advanced production injection machines and test equipment. All product strictly in compliance with national standards and international standards.

Till now, there is over 10 sets of injection machines in SUNPLAST workshop, available to manufacture HDPE fittings till 800mm, and annual production capacity reaches 5,000 tons.
Quality Certificate
SUNPLAST always sticks to the managing guideline of "manufacturing excellence", and commits to provide our customers the HDPE fittings on best quality. All fittings meet the highest quality requirements as stipulated in ISO9001, ISO14000:14001 guidelines and our stringent quality control system.
 
All HDPE fittings have passed the National Chemical Building Materials Test Center tests, and all performance are in line with ISO4427-3/EN12201-3 standard, as well EN1555 standards. At the same time, the fittings are also approved by ISO4427 certificate, CE certificate for EN12201.,etc
Packing & Shipment
SUNPLAST is a premier manufacturer of HDPE pipe fittings in China, and our products have been exporting to more than 40 countries all over the world.
 
SUNPLAST commits to provide the best quality HDPE pipe fittings to all customers in worldwide, and we look forward to becoming your reliable partner for HDPE pipe fittings.
FAQS
* Which SDR of HDPE fittings shall we use for the HDPE pipe in SDR13.6-PN12.5? Can we use the SDR17 fittings for our SDR13.6 pipe?
A: To guarantee the safety of piping system, the HDPE fittings shall be equal to or higher pressure rating than pipeline. So for HDPE pipe in SDR13.6, you shall take the fittings in SDR13.6 or SDR11. The fittings in SDR17 is not suitable for SDR13.6 pipeline.

* What kind of HDPE pipe fittings can SUNPLAST provide?
A: SUNPLAST is a integrated manufacturer & provider of HDPE fittings in China. We currently can provide three kind of fittings:
HDPE butt fusion fittings: available in a diameter ranging from 50mm to 800mm in SDR17 & SDR11
HDPE electrofusion fittings: available in sizes of 20mm to 630mm in SDR11 & SDR17
HDPE compression fittings: for small diameter 20mm to 110mm in PN16

* Can SUNPLAST provide HDPE fittings in PE80 material?
A: Yes, PE80 fittings are also possible to us.

* Can HDPE fittings made by PE100 material weld with pipes in PE80?
A: yes, they can be welded together. But, to achieve the best welding results, we recommend to weld PE80 pipes with PE80 fittings.

* Is HDPE end cap & HDPE pipe end the same thing?
A: yes, they are referring to the same products.

* Can HDPE fittings connect to PVC pipe? Or can HDPE fittings connect to PPR pipe?
A: For thermal plastic fittings, they can be connect to the pipes with same material grade only. So, for HDPE fittings, they can be connected to HDPE pipe only, but can't connect to PVC pipe or PPR pipe.

* How can we connect HDPE pipes to PVC pipes?
A: Since HDPE pipe & PVC pipe are made of different material grade, they are unable to connect together by "heat-fusion".

The possible way to connect them together is by flanged connection. To use HDPE flange adaptor & HDPE backup flanges to make it possible to connect to PVC flanges.

* Is SUNPLAST HDPE fittings UV resistant?
A: Yes, HDPE fittings are UV resistant and UV stable and will not structurally degrade from UV light. After a lengthy period of direct UV light contact, the external surface of the fittings change visually to a slightly waxy look, but this does not affect the performance and is removed by a rotary pipe scraper prior to electrofusion welding.

* What's the warranty can SUNPLAST provide?
A: All our HDPE fittings are made of virgin PE100 material, and are designed for 50 years lifetime. SUNPLAST will provide a warranty time in quality of 10 years for regular use.


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.