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About Us

Ningbo Sunplast Pipe Co., Ltd has been focusing on manufacturing plastic piping systems for water & gas for more more than 15 years. Ningbo Sunplast Pipe Co., Ltd has been focusing on manufacturing of plastic piping systems for more than 15 years. We started the business as a micro factory which had less 5 workers & only one extrusion line for 20-315mm HDPE pipe, but now, we have been growing to be a modern international factory owning three manufacturing workshops & more than 200 workers. Equipped with world advanced pipe extrusion lines and injection machines, the company’s annual output of plastics reaches over 15000 tons.

Today, SUNPLAST has been one of the leading manufacturer & provider of plastic piping systems in China, such as HDPE pipe, HDPE pipe fittings (including: HDPE butt fusion fittings, HDPE electrofusion fittings, HDPE socket fusion fittings & PP compression...

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Featured Products

  • HDPE Butt Fusion 90 Degree Elbow

    HDPE Butt Fusion 90 Degree Elbow

    Injection moulded HDPE Butt Fusion 90 Degree Elbow for HDPE pipes, available 63-800mm in SDR11 & SDR17, high quality warranted with 15 years, competitive wholesale prices, STOCK AVAILBLE for regular sizes, prompt delivery available. Contact us for more details of HDPE Butt Fusion 90 Degree Elbow!!!

  • HDPE Butt Fusion 45 Degree Elbow

    HDPE Butt Fusion 45 Degree Elbow

    Injection moulded HDPE Butt Fusion 45 Degree Elbow for HDPE pipes, available 63-800mm in SDR11 & SDR17, high quality warranted with 15 years, competitive wholesale prices, STOCK AVAILBLE for regular sizes, prompt delivery available. Contact us for more details of HDPE Butt Fusion 45 Degree Elbow!!!

  • HDPE Butt Fusion Stub Flange

    HDPE Butt Fusion Stub Flange

    Injection moulded HDPE Butt fusion Stub Flange / Stub End / Flange Adaptor for HDPE pipes, available 63-1200mm in SDR11 & SDR17, high quality warranted with 15 years, competitive wholesale prices, stock available for regular sizes, prompt delivery available. Contact us for more details of HDPE butt fusion flange!!!

  • HDPE Repair Saddle

    HDPE Repair Saddle

    Injection moulded HDPE Repair Saddle for HDPE pipes, available 40-630mm in SDR11, high quality warranted with 15 years, competitive wholesale prices, stock available for regular sizes, prompt delivery available. Contact us for more details of HDPE Repair Saddle!!!

  • HDPE Electrofusion Coupler

    HDPE Electrofusion Coupler

    HDPE Electrofusion Coupler in SDR11 for water & outdoor gas, made by top quality PE80 or PE100 material, high quality warranted with 15 years, best competitive wholesale price, stock available for regular sizes, prompt delivery can be met. Contact us for more details of HDPE electrofusion coupling/coupler!!!

  • HDPE Electrofusion 90 Degree Elow

    HDPE Electrofusion 90 Degree Elow

    HDPE Electrofusion 90 Degree Elow in SDR11 for water & outdoor gas, made by top quality PE80 or PE100 material, high quality warranted with 15 years, best competitive wholesale price, stock available for regular sizes, prompt delivery can be met. Contact us for more details of HDPE Electrofusion 90 Degree Elow!!!

  • HDPE Electrofusion Equal Tee

    HDPE Electrofusion Equal Tee

    HDPE Electrofusion Equal Tee in SDR11 for water & outdoor gas, made by top quality PE80 or PE100 material, high quality warranted with 15 years, best competitive wholesale price, stock available for regular sizes, prompt delivery can be met. Contact us for more details of HDPE Electrofusion Equal Tee!!!

  • HDPE Electrofusion Stub Flange

    HDPE Electrofusion Stub Flange

    HDPE Electrofusion Stub Flange / Flange Adaptor in SDR11 for water & outdoor gas, made by top quality PE80 or PE100 material, high quality warranted with 15 years, best competitive wholesale price, stock available for regular sizes, prompt delivery can be met. Contact us for more details of HDPE Electrofusion Stub Flange / Flange Adaptor!!!

  • PP Clamp Saddle

    PP Clamp Saddle

    PP Clamp Saddle, available 20-110mm in PN16 & PN10, high quality warranted with 15 years, competitive wholesale prices, prompt delivery available. Contact us for more details of Clamp Saddle!!!

  • PP Compression Coupler

    PP Compression Coupler

    PP Compression Coupler / Coupling for HDPE pipe, available 20-110mm in PN16 & PN10, high quality warranted with 15 years, competitive wholesale prices, prompt delivery available. Contact us for more details of PP Compression Coupler / Coupling!!!

  • PP Compression 90 Degree Elbow

    PP Compression 90 Degree Elbow

    PP Compression 90 Degree Elbow for HDPE pipe, available 20-110mm in PN16 & PN10, high quality warranted with 15 years, competitive wholesale prices, prompt delivery available. Contact us for more details of PP Compression 90 Degree Elbow!!!

  • PP Compression Flange

    PP Compression Flange

    PP Compression Flange for HDPE pipe, available 20-110mm in PN16 & PN10, high quality warranted with 15 years, competitive wholesale prices, prompt delivery available. Contact us for more details of PP Compression Flange!!!

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New Products

PP Clamp Saddle

PP Clamp Saddle

PP Clamp Saddle, available 20-110mm in PN16 & PN10, high quality warranted with 15 years, competitive wholesale prices, prompt delivery available. Contact us for more details of Clamp Saddle!!!

PP Compression Coupler

PP Compression Coupler

PP Compression Coupler / Coupling for HDPE pipe, available 20-110mm in PN16 & PN10, high quality warranted with 15 years, competitive wholesale prices, prompt delivery available. Contact us for more details of PP Compression Coupler / Coupling!!!

710-1000mm Hydraulic Butt Fusion Welding Machine For HDPE Pipe

710-1000mm Hydraulic Butt Fusion Welding Machine For HDPE Pipe

710-1000mm Hydraulic Butt Fusion Welding Machine For HDPE Pipe in manual or hydraulic operation, available size from dn800-1000mm, high quality warranted with 5 years, durable service time, competitive wholesale prices, stock available & prompt delivery available. Contact us for more details!!!

800-1200mm Hydraulic Butt Fusion Welding Machine For HDPE Pipe

800-1200mm Hydraulic Butt Fusion Welding Machine For HDPE Pipe

800-1200mm Hydraulic Butt Fusion Welding Machine For HDPE Pipe in manual or hydraulic operation, available size from dn800-1200mm, high quality warranted with 5 years, durable service time, competitive wholesale prices, stock available & prompt delivery available. Contact us for more details!!!

SPE315/630 HDPE Electrofusion Welding Machine

SPE315/630 HDPE Electrofusion Welding Machine

SPE315/630 HDPE Electrofusion Welding Machine,available to weld dn20-500mm with different models for choice.High quality warranted with 1 years, durable service time, competitive wholesale prices, stock available & a prompt delivery can be met. Contact us freely for more details of HDPE electrofusion welding machine from SUNPLAST!!!

75-110mm Socket Fusion Welding Machine For PPR Pipe HDPE Pipe

75-110mm Socket Fusion Welding Machine For PPR Pipe HDPE Pipe

75-110mm Socket Fusion Welding Machine For PPR Pipe HDPE Pipe, available 75-110mm, easy operated,high quality warranted with 1 years, durable service time,competitive wholesale prices. Contact us for more details!!!

PERT-AL-PERT Multilayer Pipe For Water Plumbing Underfloor Heating

PERT-AL-PERT Multilayer Pipe For Water Plumbing Underfloor Heating

PERT-AL-PERT Multilayer Pipe For Water Plumbing Underfloor Heating, available size: 16mm, 18mm, 20mm, 25mm/26mm & 32mm. Suitable for hot water plumbing & underfloor heating system.Good quality with 15 years' warranty time, the most competitive wholesale price & prompt delivery available. Contact us for more details of PERT-AL-PERT pipe.

Pipe Reamer For PEX-AL-PEX Pipe PEX Pipe

Pipe Reamer For PEX-AL-PEX Pipe PEX Pipe

Pipe Reamer For PEX-AL-PEX Pipe PEX Pipe,available to work for dn12-32mm, various type for choice,durable service time, competitive wholesale prices, stock available & a prompt delivery can be met. Contact us freely for more details of PEX-AL-PEX Pipe Reamer from SUNPLAST!!!

News

  • What is the best way to connect an HDPE pipe?

    HDPE pipes can be connected in various ways. Hot-melt connection is suitable for small-diameter pipes, while electrofusion connection is suitable for complex working conditions. There are also socket and flange connection methods, and the appropriate one should be selected based on the specific scenario.

  • Advantages of HDPE water pipes

    The HDPE pipe material is non-toxic, non-corrosive, and non-scaling, which can effectively improve the water quality of the pipe network; chemical corrosion resistance, internal, external and microbial corrosion resistance, strong corrosion resistance, and health;

  • How to choose a HDPE pipeline

    When selecting a HDPE pipe, first look at the shape to see if there is any deformation, whether the surface is smooth enough, and whether the color is uniform.

  • Why Is PEX Pipe Becoming the Top Choice for Underfloor Heating?

    This news feature explores why PEX tubing has become the top choice for underfloor heating, backed by technical performance data, market trends, and real‑world installation insights.

  • FAQs About PEX Tubing: Everything You Need to Know

    Cross-linked polyethylene tubing (PEX) is used in a wide variety of applications. When used as tubing, it can be found in residential, commercial, and industrial plumbing systems. In residential plumbing, PEX is most commonly used for hot and cold potable water, as well as hydronic heating systems. PEX is the preferred plumbing material in repipes and remodels, and is also now frequently used in new construction in place of copper pipe or cpvc/pvc pipe.

  • Can PPR Pipe Fittings Be Used For Drinking Water Supply Systems

    After two decades in the building materials industry, this is one of the most frequent and critical questions I get from plumbers, contractors, and homeowners. Everyone wants a system that is safe, durable, and cost-effective. The short answer is a resounding yes. PPR Pipe Fittings are not just suitable for potable water; they are one of the best modern solutions available worldwide. But let’s dive into the why and the how from a professional standpoint.

  • What Are HDPE Electrofusion Fittings and Why Should You Care?

    If you've worked in pipeline systems or water supply projects, you've likely heard about HDPE electrofusion fittings. But do you truly understand their benefits and how they can solve your installation challenges? With over 20 years of experience in industrial solutions, I've seen firsthand how the right fittings can make or break a project. Let's dive into what makes these components essential.

  • What are the functions of HDPE pipes?

    Plastic pipes are replacing traditional metal pipes because of their strong corrosion resistance and have become the main pipe material for water pipes, such as HDPE pipes.

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