Premium Ductile Iron Cast Tube Connector Low Pressure Fire Pipe Fittings

This is a fire protection grooved 90-degree elbow—a key fitting for redirecting pipelines in fire protection and water supply/drainage systems. Made of materials like ductile iron or stainless steel (with anti-corrosion coatings such as red epoxy), it pairs with grooved clamps for quick, tight installation. It offers high-pressure resistance and corrosion resistance, and is widely used in building fire protection, municipal water supply projects, complying with national standards and 3C fire safety certifications.

Connection Type：Grooved
Material：Ductile Iron
Surface Treatment：Red anti-corrosion coating (fire protection dedicated)
Application Field：Fire protection pipelines, water supply and drainage projects

Product category:

UL/FM Grooved pipe fittings

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Product Details

Product Formation

Fire Protection Grooved 90° Equal-Diameter Elbow

This high-performance grooved 90° elbow is engineered for fire protection pipeline systems and water supply/drainage projects. Constructed from durable ductile iron with a robust red anti-corrosion coating, it ensures long-term reliability in harsh environments.

Featuring a secure grooved (clamp) connection design, installation is fast and tool-efficient—ideal for both new builds and retrofits. It complies with GB 5135.11-2006 and CJ/T 152-2016 standards, supporting nominal diameters (DN) from 65 to 200 (matching outer diameters φ76.1 to φ219) and a rated working pressure of up to 2.5MPa.

A critical component for directional changes in piping networks, it balances structural strength, leak resistance, and compatibility with standard fire protection system components.

KEY WORDS： Fire protection grooved 90 elbow、Ductile iron grooved elbow、1.6MPa grooved pipe fitting、 fire pipeline elbow、Grooved clamp 90 degree elbow、Red anti-corrosion fire elbow、GB 5135 grooved pipe fitting、Fire sprinkler system grooved elbow

Product Features

Durable Material: Made of ductile iron—highly impact-resistant, pressure-tolerant, and suitable for long-term use in fire protection systems.
Secure Grooved Connection: Clamp-type design enables fast, tool-free installation (no welding/threading) and ensures tight, leak-proof sealing.
Fire-Specific Coating: Red anti-corrosion surface treatment resists rust and corrosion, meeting fire protection industry safety requirements.
Standard Compliance: Adheres to GB 5135.11-2006 & CJ/T 152-2016, ensuring compatibility with global fire pipeline components.
Wide Pressure & Size Range: Supports rated pressure up to 2.5MPa, with DN65-DN200 sizes (matching common pipeline outer diameters).
Versatile Application: Ideal for directional changes in fire sprinkler systems, water supply/drainage networks, and industrial piping.

Product Parameter

Parameter Item	Details
Product Name	Fire Protection Grooved 90° Equal-Diameter Elbow
Connection Type	Grooved (clamp connection)
Material	Ductile Iron
Execution Standard	GB 5135.11-2006, CJ/T 152-2016
Nominal Diameter (DN)	DN65/DN80/DN100/DN125/DN150/DN200
Corresponding Outer Diameter (mm)	φ76.1/φ88.9/φ108/φ133.3/φ159/φ219
Wall Thickness (mm)	2.0/2.0/2.0/2.5/3.0/3.0
Rated Working Pressure	1.6MPa/2.5MPa
Surface Treatment	Red anti-corrosion coating (fire protection dedicated)
Application Field	Fire protection pipelines, water supply and drainage projects

FAQ

Q: Can you accept sample order?

A: Yes, we accept samples with little and reasonable charge.But need customer pay sample fees and transport fees first.

Q: What is your payment terms?
A: Payment supports T/T, L/C, etc.

Q: How can l get my order?
A: We will send you the goods by UPS,DHL,FedEx,Oversea Shipment or other forwarder, all with tracking number.

Q: Why choose us?
A： With over 15 years of experience in the fire protection industry, our company has professional technical personnel and many well-known partners in the domestic market. We offer favorable prices and guarantee quality, having passed multiple certifications!

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With more than 15 years of experience serving clients, we have developed extensive expertise and in-depth industry knowledge, enabling us to deliver reliable and effective solutions tailored to your requirements.
We provide professional technical support and customized service offerings. Our committed technical team is available to assist you with product consultation, installation guidance, and comprehensive after-sales support whenever necessary.
At Sheng Feng Fire, our professionals are dedicated to helping you select the most suitable products based on your specific needs.
Please do not hesitate to contact us for further information.