Can HDPE fittings connect to PVC or PPR pipes?

No. Thermal plastic fittings can only connect to pipes of the same material grade. HDPE fittings can only connect to HDPE pipes, not PVC or PPR.

How can we connect HDPE pipes to PVC pipes?

Since they are different materials, they cannot be heat-fused. Use an HDPE flange adaptor and HDPE backup flanges to connect to PVC flanges via bolting.

Is SUNPLAST HDPE fittings UV resistant?

Yes, they are UV resistant and stable. Prolonged UV exposure may cause a waxy look on the surface, but this does not affect performance and can be scraped off before welding.

What warranty does SUNPLAST provide?

All fittings are designed for a 50-year lifetime. SUNPLAST provides a 10-year quality warranty for regular use.

Flange Adaptor for HDPE Pipe HDPE Blind Flange HDPE Pipe Flange

Name: Flange Adaptor for HDPE Pipe HDPE Blind Flange HDPE Pipe Flange
Brand: Ningbo Sunplast PiPe Co., Ltd.
SKU: 2005529455

Zhejiang, ChinaNingbo Sunplast PiPe Co., Ltd.

US$1.00

100 Pieces

Sample price:US$20.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

1year

Warranty

15 Yeas Quality Guarantee

Model NO.

50-1200mm

Material

Plastic

Connection

Welding

Transport Package

PP Bags and Cartons

Specification

50-1200

Trademark

SUNPLAST OR OEM

Origin

China

HS Code

3917400000

Production Capacity

5*40hc Container Per Month

Key features

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

100% PE100 Material: Manufactured using top-quality virgin PE100 material certified by PE100+.

Wide Size Range: Available in diameters from 50mm to 1200mm in SDR11 and SDR17.

Corrosion Resistant: Free from corrosive mediums, tuberculation, and deposits for long life.

Multiple Standards: Conforms to ISO4427-3, EN12201-3, AS/NZS 4129, EN1555, and EN ISO15494.

Custom Logo OEM: Customer logos can be laser marked, stickered, or embossed on fittings.

Fast Delivery: Mass stock for regular sizes; 10-20 days lead time for containers.

UV Stable: HDPE fittings are UV resistant and stable, maintaining performance under light.

Company profile

Ningbo Sunplast PiPe Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2016-12-30Nearest Port: NINGBO, SHANGHAIAverage Response Time: ≤4.61hTerms 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 should be used for SDR13.6-PN12.5 pipe?

To guarantee safety, fittings must equal or exceed the pipeline's pressure rating. For SDR13.6 pipe, use SDR13.6 or SDR11 fittings. SDR17 fittings are not suitable.

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

SUNPLAST provides three types: HDPE butt fusion fittings (50mm-800mm), HDPE electrofusion fittings (20mm-630mm), and HDPE compression fittings (20mm-110mm).

Q:Can SUNPLAST provide HDPE fittings in PE80 material?

Yes, PE80 fittings are also available from SUNPLAST.

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

Yes, they can be welded together. However, for the best welding results, it is recommended to weld PE80 pipes with PE80 fittings.

Q:Is HDPE end cap the same as HDPE pipe end?

Yes, they refer to the same products.