1. Product Overview
As a premier specialized manufacturer, JiangSu Xingrui Precision Tools Co., Ltd. offers professional-grade NPT (National Pipe Taper) machine taps designed for high-pressure sealing and industrial piping applications. Engineered with a 1:16 taper ratio, these tools are crafted from premium High-Speed Steel (HSS) and HSSE to ensure exceptional durability and thread accuracy for airtight, leak-proof joints.
Core Advantages:
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Superior Material Grade: Constructed from industrial-grade HSSE and Powder Metallurgy (HSSE-PM) to withstand high torque and resist thermal wear in tough materials.
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Advanced Coating Technology: Features high-performance TiAlN or TiN coatings that increase surface hardness and significantly extend tool life.
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Precision Engineering: Manufactured with specialized flute geometries for optimized chip evacuation, preventing thread galling during heavy-duty operations.
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Global Standard Compliance: Fully compliant with ANSI and ISO standards, ensuring compatibility with international piping specifications.
2. Technical Specifications & Size Chart (SAE)
The following table outlines our standard HSS NPT tap range. These specifications are designed to meet rigorous industrial standards for taper pipe threads.
| Order No |
NPT Size (inch) |
P (TPI) |
D1 (mm) |
L1 (mm) |
L2 (mm) |
D2 (mm) |
A (mm) |
Z (Flutes) |
| 18800300 |
1/16" |
27 |
7.938 |
63.00 |
12.00 |
6.00 |
4.90 |
4.0 |
| 18800400 |
1/8" |
27 |
10.287 |
63.00 |
12.00 |
7.00 |
5.50 |
4.0 |
| 18800500 |
1/4" |
18 |
13.716 |
63.00 |
18.00 |
11.00 |
9.00 |
4.0 |
| 18800600 |
3/8" |
18 |
17.145 |
70.00 |
18.00 |
12.00 |
9.00 |
4.0 |
| 18800700 |
1/2" |
14 |
21.336 |
80.00 |
23.00 |
16.00 |
12.00 |
4.0 |
| 18800800 |
3/4" |
14 |
26.67 |
100.00 |
24.00 |
20.00 |
16.00 |
5.0 |
| 18800900 |
1"
|
11 1/2 |
33.401 |
110.00 |
30.00 |
25.00 |
20.00 |
5.0 |
| 18801100 |
1 1/2" |
11 1/2 |
48.26 |
140.00 |
32.00 |
36.00 |
29.00 |
6.0 |
| 1880120 |
2" |
11 1/2 |
60.325 |
160.00 |
34.00 |
45.00 |
35.00 |
6.0 |
3. Advanced Manufacturing Process
Our facility leverages elite production technology to guarantee consistent quality across every batch:
- CNC Production Lines: We utilize multiple high-precision CNC lines to ensure stable product dimensions and geometry.
- Rollomatic Grinding: Integration of advanced ROLLOMATIC equipment ensures ultra-fine surface finishes on cutting edges.
- Research & Development: Backed by years of research and development experience, our processes are refined for maximum tool efficiency.
- Quality Assurance: Every tap undergoes multi-stage inspection to meet ISO 2 6H accuracy requirements
4. Target Application Scenarios
Our NPT taps are engineered for industries requiring high-reliability connections:
- Energy & Petrochemical: Ideal for high-pressure pipeline fittings and valve bodies
- Fluid Power Systems: Trusted for hydraulic and pneumatic components in automotive and aerospace sectors
- Multi-Material Compatibility: Efficiently processes Steel (P), Stainless Steel (M), Cast Iron (K), and Non-ferrous metals (N)
5. Packaging & Logistics
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Secure Protection: Taps are individually housed in durable, anti-corrosion packaging to preserve the integrity of the precision-ground threads.
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Clear Labeling: Each package is clearly marked with Order Numbers and specifications for seamless inventory management.
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Global Shipping: Reliable export packaging ensures your tools arrive in factory-perfect condition worldwide.
6. Frequently Asked Questions (FAQ)
Q: Can you produce taps for non-standard specifications?
A: Yes, we specialize in manufacturing special specification products tailored to specific customer requirements
Q: What is the benefit of the TiAlN coating on NPT taps?
A: TiAlN coating provides superior thermal stability and hardness, making it ideal for high-speed machining and dry cutting applications.
Q: Do these taps support high-precision machining?
A: Absolutely.Our taps are designed to meet ISO 2 6H standards, ensuring high-precision thread quality and repeatability
Product Tags:
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