HDPE Spigot Fittings
Description
Technical Parameters
HDPE Spigot Fittings, PE Spigot Fittings, Spigot Pipe Fittings, HDPE Molded Fittings, HDPE pipe spigot fittings
HDPE Spigot Fittings are made of molded HDPE, rather than being manufactured, which is why they are often called HDPE molded fittings or molded poly fittings.
SUNPLAST HDPE Spigot Fittings can be supplied in diameters ranging from 50mm to 800mm in SDR11 & SDR17, which consists of variety of types, such as: HDPE spigot end cap, HDPE spigot reducer, HDPE spigot elbow, HDPE spigot tee, HDPE flange spigot.,etc. The HDPE spigot fittings are designed & used for pressurized water systems and natural gas distribution.
The fittings are injection molded type, fabricated by 100% PE100 material, can fully conform to ISO4427-3,EN12201-3, AS/NZS 4129, EN1555, EN ISO15494 standard.
More brief details as below:
Product | HDPE Spigot Fittings, PE Spigot Fittings, Spigot Pipe Fittings, HDPE Molded Fittings |
Specification | DN50~DN800mm |
SDR/pressure ratings | SDR11 & SDR17 |
Material | Virgin PE100 material |
Manufacturing Process | Injection molded |
Color | Regular stock in black, blue/yellow available if quantity is big |
Manufacturing Standard | ISO4427-3,EN12201-3, AS/NZS 4129, EN1555, EN ISO15494 |
Product Specifications
SUNPLAST is a integrated manufacturer & supplier of HDPE spigot fittings, which are widely used for portable water systems & gas distribution. The HDPE spigot fittings include: HDPE spigot end cap, HDPE spigot reducer, HDPE spigot elbow 90 degree, HDPE spigot elbow 45 degree, HDPE spigot elbow 22.5 degree, HDPE spigot tee, HDPE flange spigot, HDPE Spigot cross & HDPE Spigot WYE tee...etc.
HDPE Spigot Fittings | Specifications | SDR11 | SDR17 | |
| HDPE Spigot End Cap | DN50~DN800mm | √ | √ |
| HDPE Spigot Reducer | DN50~DN800mm | √ | √ |
| HDPE Spigot Reducing Tee | DN50~DN800mm | √ | √ |
| HDPE Spigot Tee | DN50~DN800mm | √ | √ |
| HDPE Spigot Elbow 90deg | DN50~DN800mm | √ | √ |
| HDPE Spigot Elbow 45deg | DN50~DN800mm | √ | √ |
| HDPE Spigot Elbow 22.5deg | DN110~DN800mm | √ | √ |
| HDPE Flange Adaptor Spigot | DN50-DN1200mm | √ | √ |
![]() | HDPE Spigot Elbow Cross | DN63~DN800mm | √ | √ |
| HDPE Spigot WYE Tee | DN63~DN160mm | √ | |
Technical Parameter
The HDPE spigot fittings are manufactured into our domestic standard of GB/T13663, and international standard ISO4427-3 standard. The HDPE butt fusion fittings are strictly tested as per the standard, and shall satisfy the technical parameter as below:
Characteristic | Requirement | Test parameters | Test method |
Melt mass-flow rate (MFR) | Change of MFR by processing ± 20 % | Load=5KGS Test temperature=190℃ Test period=10min. | ISO 1133:2005 |
Oxidation induction time | ≥ 20 min | Test temperature=210℃ Test Piece=3 | ISO 11357-6 |
Hydrostatic strength at 20 °C | No failure of any test piece during test period | Test temperature=20℃ Test period=100 hours. Circumferential(hoop) stress=12.4Mpa | ISO 1167 |
Hydrostatic strength at 80 °C | No failure of any test piece during test period | Test temperature=80℃ Test period=165 hours. Circumferential(hoop) stress=5.4Mpa | ISO 1167 |
Tensile strength for butt fusion fittings and spigotted fittings | Test to failure: Ductile — Pass Brittle — Fail | Test temperature=23℃ | ISO 13953 |
Benefits Of HDPE butt fusion fittings
HDPE butt fusion fittings, which play a vital role in assembling pipes with butt welding assembly method, also offer the opportunity to be used in the parts they are attached to. HDPE fittings produced in various shapes can be selected according to the shape of the floor to be used. Thanks to its chemical feature, it shows high resistance to impacts and pulls. HDPE fittings are also known for their resistance to high pressure.
The HDPE fittings has excellence performance, and are superior to the fittings that are made of the other material, because they allow for:
* Ease of handling. HDPE fittings are much lighter in weight than metal, like steel fittings.
* Flexible to work, allowing for installation over uneven terrain;
* Reliable jointing. Poly fittings are jointed by heat-fusion technology, like butt welding or electrofusion, which provides joints that may even be stronger than the piping itself;
* Leak proof & rust proof. PE fittings use heat fusion technology, and it is a leak proof joint.
* Corrosion and chemical resistant; HDPE pipe fittings are resistant to all corrosion medium, and can be used for transportation of strong acid
* High impact strength;
* UV resistant; PE fittings in black color contains carbon black, it is UV resistant, allow for using outer door.
FAQS

* What’s the HDPE Spigot fittings?
A: HDPE spigot fittings regularly refer to all HDPE fittings that are injection molded.
* What’s the raw material does SUNPLAST use for the HDPE fittings?
A: To assure the best quality of the fittings, SUNPLAST generally adopts the most qualified PE100 materials from the worldwide, and those material are approved by PE100+ association,such as YGH041T from Sinopec, P6006 from Sabic & HE3490-LS from Borealis...etc.
* 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 SDR rating of HDPE fittings can SUNPLAST provide?
A: Currently, SUNPLAST can provide HDPE fittings in SDR11-PN16 & SDR17-PN10.
* 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.

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