Internal thread elbow
Premium Quality Internal Thread Elbow for Industrial Applications
Our Internal Thread Elbow is engineered for superior performance in plumbing and piping systems. Manufactured with precision to meet international standards, these fittings ensure leak-proof connections and long-term durability.
Key Features
- Material: High-grade brass/stainless steel/carbon steel options
- Thread Standard: NPT/BSPP/BSPT available
- Pressure Rating: 2000 PSI minimum
- Temperature Range: -20°F to 400°F
- Surface Treatment: Electroplated or passivated finish
- Standards Compliance: ANSI/ASME B1.20.1, ISO 228-1
Technical Specifications
| Size (inches) | Outside Diameter | Wall Thickness | Weight (lbs) |
|---|---|---|---|
| 1/8" | 0.405" | 0.049" | 0.04 |
| 1/4" | 0.540" | 0.065" | 0.09 |
| 3/8" | 0.675" | 0.065" | 0.15 |
| 1/2" | 0.840" | 0.083" | 0.25 |
| 3/4" | 1.050" | 0.083" | 0.38 |
Internal Thread Elbow FAQs
Q: What is the difference between NPT and BSPP thread types in Internal Thread Elbows?
A: NPT (National Pipe Thread) has a tapered thread design that creates a seal through thread deformation, while BSPP (British Standard Pipe Parallel) features straight threads requiring a washer or O-ring for sealing. Internal Thread Elbows with NPT threads are more common in North America, while BSPP is standard in Europe and Asia.
Q: How do I determine the correct size of Internal Thread Elbow for my application?
A: Measure the nominal pipe size (NPS) of your existing piping system. Internal Thread Elbows are sized according to the pipe's inner diameter they connect to. Always match both the size (e.g., 1/2", 3/4") and thread type (NPT, BSPP) for proper fitting. When in doubt, consult with our technical specialists for sizing guidance.
Q: What maintenance is required for Internal Thread Elbows in high-pressure systems?
A: Regular inspection for thread wear, corrosion, or mineral buildup is recommended. For Internal Thread Elbows in continuous service, we suggest annual disassembly and cleaning. Apply appropriate thread sealant (Teflon tape or pipe dope) during reassembly. In corrosive environments, consider stainless steel Internal Thread Elbows for extended service life.
Material Options Comparison
| Material | Advantages | Limitations | Best Applications |
|---|---|---|---|
| Brass | Excellent corrosion resistance, good machinability | Not suitable for high-temperature steam | Water systems, gas lines, HVAC |
| Stainless Steel 304 | High strength, superior corrosion resistance | Higher cost, harder to machine | Chemical processing, marine applications |
| Carbon Steel | High pressure rating, cost-effective | Requires protective coating against rust | Industrial plumbing, hydraulic systems |
Installation Guidelines
- Inspect the Internal Thread Elbow for any visible defects before installation
- Clean both male and female threads thoroughly
- Apply appropriate thread sealant (Teflon tape for NPT, washer for BSPP)
- Hand-tighten the Internal Thread Elbow first to ensure proper thread engagement
- Use two wrenches - one to hold the pipe and another to tighten the fitting
- Avoid over-tightening (typically 1-2 turns past hand-tight)
- Pressure test the system before putting into full service
Industry Applications
Our Internal Thread Elbows are widely used in:
- Plumbing systems for residential and commercial buildings
- Hydraulic and pneumatic systems in manufacturing
- Oil and gas pipelines
- Chemical processing plants
- HVAC and refrigeration systems
- Water treatment facilities