| Quantity: | |
|---|---|
Product Name | Sanheng Hydraulic 1404 MP-FPS / 2NU NPT Male to Female NPSM Adaptor |
Code | 2NU |
Material & Surface Treatment | Carbon steel (zinc plated Cr3+); Stainless steel (passivation) |
Application | Pipe connection（oil,water,gas） |
Technology | CNC machining & Forged |
Package | All adapters equipped with thread protective end caps, inside plastic bags, and then inside standard blank carton boxes. |
Our main products | Threaded hydraulic hose fittings and pipe adapters, sucn as Metric , BSP, BSPT, NPT , JIC , ORFS, SAE thread. |
The 2NU / 1404 NPT male to NPSM female swivel adapter is professionally engineered for high-pressure industrial fluid pipeline conversion. It adopts tapered NPT external thread matched with NPSM straight swivel internal thread design, realizing quick standard switching for fluid pipelines. Adopting one-piece forging and CNC precise thread processing, the fitting features solid structure, high overall density and strong deformation resistance. Exquisite thread cutting ensures smooth assembly without galling or cross-threading, effectively avoiding micro leakage and system pressure loss. With excellent temperature adaptability and corrosion resistance, it is suitable for long-term delivery of oil, water and gas media in heavy-duty vibration working environments, stabilizing system operation and lowering daily maintenance cost.
Manufactured in strict accordance with ASME B1.20.1 and SAE AS71051 industry standards. Complete size range covers 1/8" to 2", with full fractional specifications available. All threads and overall dimensions are produced following American standard regulations; complete dimension drawings and parameter sheets can be provided according to required specifications.
Dual Thread Standard Conversion: Integrated NPT tapered male thread and NPSM straight swivel female thread, realizes fast inter-standard pipeline connection without extra transition fittings.
Anti-Vibration & Anti-Loosening Structure: Optimized thread tooth profile design disperses assembly stress, keeps tight connection state for a long time, and is not easy to loosen under continuous mechanical vibration.
Smooth Internal Flow Channel: Inner hole polished processing reduces fluid turbulence and pressure loss, maintains stable flow efficiency of hydraulic system.
Anti-Galling & Easy Installation: Precision machined thread surface reduces assembly friction, supports repeated disassembly and assembly without thread bonding or damage.
Carbon Steel (Cr3+ Zinc Plated)
Adopts environmentally friendly trivalent chromium zinc plating treatment, with good oxidation and rust-proof performance, stable mechanical strength, cost-effective for conventional high-pressure hydraulic and general industrial pipeline use.
316L Stainless Steel (Passivation)
After professional passivation treatment, it boasts outstanding acid and alkali resistance as well as salt spray corrosion resistance, perfectly adapting to chemical industry, marine and other harsh corrosive working conditions.
This NPT to NPSM thread adapter is widely used for standard conversion connection of high-pressure fluid pipelines in multiple core industrial fields:
Heavy Machinery & Hydraulic Systems: Supporting pipeline standard conversion for engineering machinery, vehicle hydraulic circuits and power equipment.
General Industrial Manufacturing: Pipeline connection and transformation for machine tools, automated production lines, pressure water and compressed gas conveying systems.
Petrochemical Industry: Oil and gas transmission pipelines, chemical medium delivery systems, adapting to complex medium and high-pressure working conditions.
Marine & Offshore Engineering: Fluid pipeline standard matching and connection for ship equipment and offshore platform hydraulic systems.
The adapter body is formed by integral high-strength forging to optimize metal grain structure and enhance pressure resistance and impact resistance. Threads and sealing surfaces are processed by multi-axis CNC machine tools to ensure dimensional accuracy and standard compliance. All products pass strict thread gauge inspection and pressure sealing sampling test, fully meeting ASME and SAE standard requirements, ensuring stable leak-free operation under extreme temperature and high-pressure conditions.
Frequently Asked Questions (FAQ)
To assist in your procurement and engineering decisions, we have compiled detailed answers to the most frequent inquiries regarding our manufacturing capabilities and product specifications.
Our carbon steel adaptors undergo a premium Zinc Plating process utilizing Cr3+ (Trivalent Chromium). This environmentally friendly treatment provides an exceptionally durable, corrosion-resistant barrier that significantly outperforms traditional zinc plating in salt-spray testing, ensuring longevity in harsh industrial environments.
Absolutely. The combination of the NPT tapered thread, which creates a tight interference fit, and the NPSM swivel mechanism ensures that the connection remains mechanically secure and leak-free, even under the continuous, heavy-duty system vibrations commonly found in mobile hydraulics and heavy manufacturing equipment.
We utilize fully automated, multi-axis CNC machining centers guided by advanced CAD/CAM software. Additionally, our quality assurance team performs strict statistical process control (SPC) and regular tactile thread gauging to ensure every single piece strictly meets ASME B1.20.1 and SAE AS71051 standards before packaging.
The customization process is highly streamlined. You simply provide your logo in a vector format along with your specific part requirements. We will produce a physical prototype utilizing our precision laser marking technology for your engineering team's approval before initiating the full-scale production run.
We employ a robust, multi-layered protection strategy. First, protective plastic caps are applied to all threads to prevent denting. The adaptors are then sealed in moisture-resistant plastic bags and packed tightly into heavy-duty, standardized blank cartons. This prevents internal movement, metal-on-metal scratching, and external crushing during global transit.
