Name: China Lined Grooved 90 Degree Elbow Manufacturers Suppliers Factory - Made in China - Gangyuanlong
Brand: Juncheng
SKU: 306044265

Specification Table

Parameter	Detail
Material Grade	Ductile Iron + PP Liner
Process	Casting + Coating + Liner Bonding
Size Range	DN50–DN300
Wall Thickness	Compatible with standard pipe schedules
Shape	90-degree elbow
Connection	Grooved
Standard	GB 5135.11-2019
Application	90-degree directional change for drinking water and chemical pipelines

Plastic Lining Inside for Clean Water Flow

Conventional iron elbows may develop internal rust over time, which can affect water quality and taste. The lined grooved 90 degree elbow is designed to prevent this issue.
The fitting features a PP plastic liner inside the ductile iron body, allowing water to contact the plastic lining instead of the metal surface. This helps prevent rust contamination and maintains cleaner water flow.
A customer in Singapore used these lined elbows for a school drinking water project with multiple drinking fountains. Standard iron fittings were not suitable for the application, so he switched to our lined grooved elbows to meet hygiene requirements.
The lined grooved 90 degree elbow is manufactured from ductile iron with a PP liner through casting, coating, and liner bonding processes. Sizes range from DN50 to DN300.

The lined grooved 90 degree elbow is ideal for drinking water pipelines and certain chemical piping systems where corrosion resistance and water hygiene are important.
The PP liner helps prevent rust flakes and metal contamination inside the pipeline.
Jianzhi Group manufactures these fittings and holds UL and CE certifications. The company is recognized as a national high-tech enterprise, and its lined fittings are widely used in water treatment plants, hospitals, and public water supply systems.
The minimum order value is 10,000 RMB, and mixed sizes are acceptable within a single order. OEM branding services are also available.

Each lined grooved 90 degree elbow undergoes inspection before packaging. The liner surface is checked to ensure smoothness and proper bonding without gaps or defects.
Third-party inspection is welcome.
Warranty support is provided. If any issue occurs upon arrival at your port, please provide photos for verification. Replacement or refund will be arranged accordingly.
Payment terms: 30% deposit, 70% balance before shipment. Available terms include EXW, FOB, and DDP.