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.

• Superior Material Grade: Constructed from industrial-grade HSSE and Powder Metallurgy (HSSE-PM) to withstand high torque and resist thermal wear in tough materials.

• Advanced Coating Technology: Features high-performance TiAlN or TiN coatings that increase surface hardness and significantly extend tool life.

• Precision Engineering: Manufactured with specialized flute geometries for optimized chip evacuation, preventing thread galling during heavy-duty operations.

• 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.

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

• Secure Protection: Taps are individually housed in durable, anti-corrosion packaging to preserve the integrity of the precision-ground threads.

• Clear Labeling: Each package is clearly marked with Order Numbers and specifications for seamless inventory management.

• 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