How can we connect HDPE pipes to PVC pipes?

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.

What's the warranty can SUNPLAST provide?

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.

Poly Female Threaded Adaptor/Female Coupler

Name: Poly Female Threaded Adaptor/Female Coupler
Brand: Ningbo Sunplast PiPe Co., Ltd.
SKU: 1952695441

Zhejiang, ChinaNingbo Sunplast PiPe Co., Ltd.

US$1.00

100 Pieces

Sample price:US$2.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

1years

Warranty

15 Yeas Quality Guarantee

Model NO.

DN20mm~DN110mm

Material

HDPE

Connection

Socket and Welding

Transport Package

Cartons

Specification

20-110

Trademark

SUNPLAST OR OEM

Origin

China

HS Code

3917400000

Production Capacity

8000ton/Year

Key features

50-Year Lifetime Design: HDPE fittings are designed for 50 years of regular use with high durability.

10-Year Quality Warranty: Comprehensive 10-year warranty coverage for all mechanical defects in regular use.

100% Virgin PE100 Material: Manufactured using top-quality virgin PE100 material from certified global suppliers.

Multi-Standard Compliance: Fully conforms to ISO4427-3, EN12201-3, AS/NZS 4129, EN1555, and EN ISO15494 standards.

Customized Logo Service: OEM service available with laser marking, stickers, or embossing based on order quantity.

Corrosion & Freeze Resistance: Resistant to corrosive mediums and capable of withstanding extreme low temperatures.

Leak-Free Heat Fusion: Creates fusion joints as strong as the pipe using special welding machines.

Wide Size Range: Available in diameters from 20mm to 110mm for adaptors and up to 800mm for other fittings.

Company profile

Ningbo Sunplast PiPe Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2016-12-30Nearest Port: NINGBO, SHANGHAIAverage Response Time: ≤4.39hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, DAP, CIP, FCA, EXW

AI-Powered supplier vetting

SummaryThe supplier is a small limited company with 8 employees offering HDPE pipes and fittings. It is identified as a professional technical supplier and provides extensive customization, ODM, and OEM services, including for popular brands. However, it does not provide 3D software design, has not launched new products in the past year, and has no available SDK. Service-management procedures exist for corrective actions and complaint handling, but no written records were provided. The supplier reports no overseas warehouse, showroom, agent, or branch, although it has attended EXCON CAPECO and accepts several trade and payment terms. Financial records are indicated for 2021–2023, but their contents are not provided. No certification information, production scale, or verified customer case details are available.

Supplier typeThe supplier is explicitly identified as a professional technical supplier, operates as a limited company, and offers HDPE pipes and fittings. It is not part of a larger company group and has 8 employees, indicating a small, independent supplier structure.

After-Sales capabilityThe supplier has procedures for handling customer complaints and corrective and preventive actions, but no written records are available. It has no overseas warehouse, showroom, agent, or branch, while its service coverage is reported as zero countries; these limitations constrain demonstrated overseas after-sales support.

R&D capabilityThe supplier provides ODM services and is described as having R&D capability, but it launched no new products during the past year, lacks an available SDK, and does not provide 3D software design. Its digitalization program has started, but ERP, OA, CRM, and SAP systems are not established or used.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. It also provides ODM services and OEM services for popular brands, demonstrating broad stated customization capability.

Product Q&A

Q: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?

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.

Q:What kind of HDPE pipe fittings can SUNPLAST provide?

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

Q:Can SUNPLAST provide HDPE fittings in PE80 material?

Yes, PE80 fittings are also possible to us.

Q:Can HDPE fittings made by PE100 material weld with pipes in PE80?

yes, they can be welded together. But, to achieve the best welding results, we recommend to weld PE80 pipes with PE80 fittings.

Q:Can HDPE fittings connect to PVC pipe? Or can HDPE fittings connect to PPR pipe?

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