grooved-fittings

11.25° Elbow

11.25° Elbow

Product Overview

11.25° Elbow is manufactured by Junyue for grooved piping systems, fire protection networks, and industrial fluid handling. Constructed from ductile iron conforming to ASTM A536, rated for a maximum working pressure of 300 PSI, and available with UL and FM approvals.

Technical Specifications

Engineering data

11.25°Elbow

Product Name: Ductile Iron 11.25° Elbow (Surface Sprayed Version)

Product Material: High-Quality Ductile Iron (QT450-10/QT500-7)

Elbow Angle: Precise 11.25°, suitable for the gentle direction change of pipelines, reducing medium flow resistance, avoiding pressure loss in the pipeline, ensuring smooth fluid transportation, and solving the pain points of abrupt steering and easy scaling of conventional large-angle elbows.

I. Core Material Advantages - Ductile Iron, Sturdy, Durable and Reliable

Made of national standard high-quality ductile iron through precision casting. Compared with ordinary gray cast iron, it has extremely strong toughness, wear resistance and impact resistance, not easy to break or deform, and can bear high working pressure (≤1.6MPa), suitable for pipeline systems under various working conditions. The material itself has good corrosion resistance; the original material can resist the erosion of various media such as tap water, sewage and industrial wastewater. Combined with the surface spraying process, it provides double protection, extending the service life to more than 30 years and greatly reducing the later maintenance cost.

Strictly following casting standards, there are no defects such as sand holes, air holes and cracks. The inner wall is smooth and flat without burrs or protrusions, which reduces the frictional resistance during fluid flow, avoids medium residue and scaling, and prevents wear of the inner wall of the pipeline, suitable for long-term continuous transportation working conditions.

II. Surface Spraying Process - Multiple Protection, Suitable for Complex Environments

The surface adopts professional electrostatic spraying/epoxy spraying process (spraying material can be customized according to requirements). The spraying is uniform, with strong adhesion, no missing spraying, sagging or peeling. The coating thickness is uniform (100-150μm), closely attached to the ductile iron matrix, forming a dense protective layer.

Detailed Spraying Advantages:

  • Corrosion Resistance: Effectively resists the erosion of harsh environments such as acid-base, humidity and salt spray. It can be used in complex scenarios such as outdoor exposed pipelines, underground embedded pipelines and chemical workshops, avoiding rust and corrosion of the cast iron matrix and extending the service life of the product.
  • Wear Resistance: The coating has high hardness, which can resist collision and friction during pipeline installation and use, protect the surface of the elbow from damage, and reduce the wear of the inner wall of the pipeline by the medium.
  • Easy to Clean: The sprayed surface is smooth, not easy to absorb dust, impurities and medium residues. No complex maintenance is required daily, and it can be kept clean with simple wiping.
  • Environmentally Friendly and Non-Toxic: Adopting environmentally friendly spraying materials, no harmful volatile substances, suitable for scenarios requiring high medium cleanliness such as drinking water and food processing, safe and odorless.

III. Product Specifications and Precision

  1. Angle Precision: Precise control of 11.25°, error ≤±0.5°, ensuring accurate pipeline steering and tight splicing, avoiding misalignment, water leakage and other problems after installation, suitable for the special needs of gentle pipeline steering (such as long-distance pipelines, precision pipeline layout).

  2. Caliber Specifications: DN50-DN600 (special calibers can be customized), wall thickness meets national standard (SCH10-SCH40), suitable for different specifications of ductile iron pipes, steel pipes, etc., with strong versatility.

  3. Connection Method: Socket type/flange type (can be customized), the interface is precision processed with excellent sealing performance. Used with seals, it can achieve leak-free connection, suitable for various connection scenarios such as pressure pipelines and water supply and drainage pipelines.

  4. Implementation Standard: GB/T 13295-2013 (National Standard), ISO 2531 (International Standard). Strictly control every process of production and testing to ensure that the product meets the standards for industrial pipeline use.

IV. Application Scenarios

Widely used in municipal water supply and drainage, sewage treatment, industrial pipelines, chemical industry, metallurgy, electric power, waterworks, gas pipelines, farmland irrigation and many other fields. It is especially suitable for scenarios that require gentle pipeline steering and have high requirements for corrosion resistance and durability, such as:

  • Municipal Water Supply and Drainage Pipelines: Outdoor long-distance water supply and drainage pipelines need gentle steering to reduce pressure loss. Surface spraying can resist the erosion of outdoor humid and acid-base environments.
  • Industrial Pipeline Systems: Medium transportation pipelines in chemical workshops and metallurgical plants can resist corrosive media. The 11.25° steering is suitable for precision pipeline layout and avoids medium retention.
  • Underground Embedded Pipelines: In the underground humid environment, surface spraying can effectively prevent cast iron from rusting, extend the service life of the pipeline and reduce the later maintenance cost.
  • Drinking Water Pipelines: Environmentally friendly spraying materials, no harmful impurities, suitable for drinking water transportation, and the smooth inner wall ensures water quality cleanliness.

V. Summary of Product Advantages

  • High-Quality Material: Ductile iron has strong toughness, impact resistance and pressure resistance, not easy to break or deform, and excellent original corrosion resistance.
  • Exquisite Craftsmanship: The surface spraying is uniform and dense, providing double protection, corrosion resistance and wear resistance, suitable for complex working conditions and long service life.
  • Precision Compliance: 11.25° angle is precise, the interface is precision processed, easy to install, good sealing performance, no leakage hidden danger.
  • Strong Versatility: Multiple calibers and connection methods, suitable for various pipeline systems, special specifications can be customized to meet different needs.
  • Controllable Cost: Strong durability, low later maintenance cost, environmentally friendly and non-toxic, suitable for various high-demand scenarios, with outstanding cost performance.

VI. After-Sales and Guarantee

  1. Quality Guarantee: All products have passed strict pressure testing, appearance inspection and dimension inspection. Unqualified products will never leave the factory, and third-party inspection is supported.

  2. Customization Service: According to customer needs, we can customize caliber, wall thickness, connection method and spraying material (epoxy, polyurethane, etc.) to meet special working condition requirements.

  3. After-Sales Support: Provide professional installation guidance. If the product has quality problems (non-artificial damage), you can enjoy return, replacement, maintenance and other services to fully protect customer rights and interests.

more:https://www.sdjunyue.cc/grooved-pipe-fittings-pipe-joints.html

Compatibility

Drop-in replacement

This Junyue grooved piping component is engineered for seamless compatibility with Victaulic Style 07 and Grinnell system layouts. Verify pipe OD, groove profile, gasket compound, pressure class, and project approvals before specifying as a replacement.

Technical FAQ

Application limits

Can it be used for steam above 150 C?
No. Do not use for steam above 150 C unless a written project-specific approval, rated gasket, and compatible body material are confirmed.
Can it replace any grooved fitting without checking pipe OD?
No. Pipe OD, groove standard, working pressure, gasket material, and certification scope must be matched.
Is it suitable for potable water by default?
No. Potable water use requires confirmation of coating, gasket compound, local sanitary approval, and project compliance.
Can it be used in corrosive chemical service?
Not by default. Chemical compatibility must be verified against the medium, concentration, temperature, and coating system.

Order & Delivery

Shipping and lead time

  • Factory: Weifang, Shandong, China
  • Port: Qingdao Port, approx. 2 hours
  • Lead Time: FCL 15-20 days
  • Certificate: EN 10204 3.1 mill test certificate available

Certifications

Quality & compliance

Junyue products are manufactured under ISO 9001, ISO 14001, and ISO 45001 management systems, with UL listings and CE marking for international markets.

BV
BV
CE
CE
ISO 9001
ISO 9001
ISO 14001
ISO 14001
ISO 45001
ISO 45001
SGS
SGS
UL Certifications
UL Certifications
UL Certification
UL Certification
Junyue factoryJunyue quality control

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