Class 300 Galvanized 90 Degree Malleable Iron Elbow
2.Double Female Thread NPT/BSPT Dual Standard .
3.CNC Precision Thread, Zero Leakage Sealing .
4.Full Galvanized Anti-Corrosion Coating .
5.300PSI Heavy Pressure Resistance .
6.Fire & Gas & Water Pipeline Applicable .
7.One-Piece Cast, Stable Tough Structure .
8.Full Sizes & OEM Custom Available
Description
Class 300 Hot Dipped Galvanized Malleable Iron 90 Degree Elbow Pipe Fitting
When you need to change pipeline direction and connect two threaded pipes, our Class 300 Hot Dipped Galvanized Malleable Iron 90° Elbow is your ideal plumbing solution. This standard elbow features double female threads on both ends, realizing stable right-angle turn connection without extra adapters.
Made of thickened high-quality malleable iron casting, it boasts stable mechanical toughness and excellent high pressure resistance fully compliant with Class 300 heavy pattern & ANSI B16.3 standard. The full internal & external hot dipped galvanized zinc anti-rust coating forms a tough protective layer to isolate moisture & oxidation and extend long service life for indoor and outdoor projects. Precise NPT & BSPT dual standard threads ensure tight, leak-free connection for fire protection, natural gas, water supply, water irrigation, petroleum and industrial fluid piping systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | 90 Degree Elbow (Double Female Thread) |
| Pressure Class | Class 300 (300# Heavy Pattern) |
| Raw Material | Thickened High-Quality Malleable Iron |
| Surface Finish | Full Internal & External Hot Dipped Galvanized Anti-Corrosion Zinc Coating |
| Thread Standard | NPT American Standard & BSPT British Standard Dual Thread |
| Working Temperature | -20℃ ~ 120℃ |
| Applicable Medium | Water, Natural Gas, Compressed Air, Water Irrigation, Petroleum, Light Industrial Fluid |
| Certification | Fully Compliant with ANSI B16.3 Standard |
| Application Scenario | Indoor & Outdoor Plumbing, Fire Protection, Gas Right-Angle Turn Pipeline, Industrial Piping |
Key Features
1.Excellent Corrosion Resistance
Full hot dipped galvanized zinc coating covers the elbow’s inner and outer surfaces, effectively isolating moisture, salt mist and weak chemical corrosion. It delivers stable anti-rust performance for long-term use in indoor concealed piping and outdoor exposed water, gas, irrigation and petroleum pipeline systems.
2.Precise Thread Sealing
Standard NPT & BSPT double female threads on both ends are machined with high precision, enabling tight leak-free right-angle turn connection without extra sealant in most scenarios.
3.Easy & Quick Installation
Double female thread design realizes direct 90° pipeline turning joint, no extra adapters required; compatible with common pipe wrenches for fast on-site assembly of turning pipelines.
4.Stable Structural Strength
Made of thickened high-quality malleable iron, the elbow boasts outstanding mechanical toughness and impact resistance, rated for Class 300 heavy working pressure and compliant with ANSI B16.3 standard.
5.Wide Compatibility & Cost-Efficient
Suitable for indoor & outdoor plumbing, fire protection, natural gas, water irrigation, petroleum and light industrial right-angle turn pipelines; provides reliable high-pressure performance at a competitive cost vs premium alloy alternatives.
Dimensions and Specifications
Our Class 300 hot dipped galvanized 90 degree elbows support a full range of standard inch sizes, mainstream options include:
- 1/8", 1/4", 3/8", 1/2", 3/4", 1"
- 1-1/4", 1-1/2", 2", 2-1/2", 3", 4"
- Custom size, logo and packaging requests are acceptable
Every elbow is manufactured with precise dimensional tolerance. Solid thickened one-piece casting structure greatly prevents deformation or loosening under normal Class 300 heavy working pressure.
Materials and Surface Treatments
1.Main Body Raw Material
High-quality thickened malleable iron (ANSI B16.3 compliant) features high toughness, strong impact resistance and stable mechanical performance under Class 300 heavy pressure rating.
2.Surface Finish
Full internal & external hot dipped galvanized zinc finish forms a uniform anti-corrosion protective film covering the whole elbow, effectively resisting rust, moisture and mild chemical erosion for long-term indoor concealed and outdoor exposed pipeline use.
3.Thread Processing
Precision CNC machined NPT & BSPT double female threads on both ends ensure tight, leakproof right-angle turn connection fit when connecting standard threaded pipes.
Standards and Certifications
Our products comply with rigorous international industry standards:
- Compliant with ANSI B16.3 (Class 300 Heavy Malleable Iron Threaded Pipe Fittings)
- ISO9001 quality management system certified
All Class 300 hot dipped galvanized 90 degree elbows are fully tested for pressure resistance, thread precision and right-angle turn pipeline sealing performance prior to packaging.
Applications
1.Residential & Commercial Plumbing
For indoor & outdoor domestic cold/hot water pipelines, commercial restroom and kitchen right-angle turn pipeline connections.
2.Gas Pipeline Systems
Ideal for natural gas and LPG right-angle turn pipeline distribution connection, with tight NPT & BSPT dual standard thread sealing.
3.Fire Protection Piping
Suitable for small-bore fire sprinkler right-angle turn pipeline joints.
4.Light Industrial Fluid Delivery
Used for compressed air, low-pressure liquid industrial right-angle turn pipeline distribution conversion, also applicable to water irrigation and petroleum pipeline layout.
Installation Instructions
- Thread Preparation: Clean male pipe threads and double female threads of elbow, apply PTFE tape evenly if needed.
- Hand Screw Alignment: Rotate the 90° elbow by hand to align threads without forced twisting.
- Tool Tightening: Use two pipe wrenches to secure both ends evenly, avoid over-tightening to prevent thread damage.
- Leak Test: Complete pressure test after installation to confirm zero leakage at both connection joints.
- Post-Check: Inspect right-angle turn pipeline connection regularly for long-term stable sealing.
Follow local plumbing, gas and fire safety codes during all installation work.
Packaging and Shipping
Each hot dipped galvanized malleable iron 90 degree elbow is wrapped with anti-collision protective packaging to avoid scratches and abrasion during shipment. Moisture-resistant packaging materials are used to fully protect the complete zinc anti-corrosion galvanized coating intact. Large bulk shipments are loaded on standard pallets for convenient handling and container loading.
Based in Taigu, Shanxi, we have mature, efficient logistics channels covering worldwide ports and markets, enabling fast, cost-effective delivery for all bulk orders.
Quality Control
1.Raw Material Inspection
Every batch of thickened malleable iron raw material is inspected for chemical composition and mechanical toughness to meet Class 300 heavy standard.
2.Pressure Burst Test
Random samples of 90 degree elbows are subjected to hydrostatic pressure testing matching Class 300 high working pressure rating.
3.NPT & BSPT Thread Precision Check
CNC thread gauges inspect two-end thread accuracy to guarantee tight right-angle turn pipeline leak-free connection.
4.Surface Anti-Rust Inspection
Full hot dipped galvanized zinc coating surface is fully checked to avoid galvanization defects, bare iron spots and surface flaws.
OEM and Customization Services
With an annual production capacity of 30,000 tons, we support bulk OEM & customized orders. Our R&D team can customize sizes, logos and packaging to satisfy unique project demands. We store over 1,000 sets of malleable iron fitting molds for fast customization and short lead times.
FAQ
Q: Can this hot dipped galvanized malleable iron 90 degree elbow be buried underground?
A: It can be buried underground with extra anti-corrosion wrapping protection; direct burial without additional coating is not recommended for long-term service life.
Q: What is the correct installation method for this Class 300 hot dipped galvanized 90 degree elbow?
A: Wrap PTFE tape evenly on both NPT & BSPT female ends, tighten both ends symmetrically with two pipe wrenches; do not over-torque to avoid thread damage.
Q: Can it cope with pipeline thermal expansion?
A: As rigid two-port threaded fitting, we suggest installing expansion joints for long right-angle turn pipelines with obvious temperature variation.
Q: Can it connect different material pipes like PVC and steel?
A: It can connect standard NPT & BSPT threaded pipes of different materials, ensure thread specification matches before assembly on both ends.
Q: Why choose hot dipped galvanized malleable iron elbow instead of stainless steel?
A:It features thickened casting, high mechanical toughness, stable 300PSI high pressure resistance, full internal & external zinc anti-corrosion coating, and offers great cost performance for indoor & outdoor plumbing, gas, water irrigation, petroleum and light industrial right-angle turn pipeline projects.
Contact Us
Want to pick the suitable Class 300 Hot Dipped Galvanized Malleable Iron 90 Degree Elbow for your project? Our technical team will offer professional one-stop selection support. Email:q1236800000@gmail.com Get technical specs, bulk price and delivery timeline by contacting us. We always provide premium hot dipped galvanized malleable iron right-angle turn elbows for global pipeline projects.
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