NPT Hydraulic Adapters (NPT / NPTF)

Product Specification

Feature

JINGYE Fittings is a Ningbo-based Chinese manufacturer of NPT hydraulic adapters, tapered pipe fittings, and customized connectors. Founded in 2008, it supplies hydraulic distributors, machinery OEMs, hose assembly manufacturers, and maintenance providers. Key Product Advantages: 1. Sixteen Representative NPT Series JINGYE Fittings offers 1N, 1N4, 1N9, 4N, 4NN, 5N, 5N4, 5N9, 7N, 7N9, 9N-CAP, AN, GN, 1NO, 2NU, and 2NU9 Series. Options cover male/female straight adapters, 45°/90° elbows, tees, plugs, caps, NPT-to-NPSM, and NPT-to-SAE ORB connections. 2. NPT and NPTF Thread Expertise NPT tapered pipe threads follow ASME B1.20.1; NPTF Dryseal threads follow ASME B1.20.3. Both have 60° thread forms and a nominal 1:16 taper, but differ in crest and root specifications. NPTF production can be evaluated against customer drawings and inspection requirements. 3. Application-Specific Sealing NPT fittings use tapered-thread engagement and suitable sealant where required. Properly specified NPTF Dryseal connections use controlled thread geometry. Compatible NPSM designs may use 60° cone sealing, while SAE ORB stud ends use O-rings. Mating threads and sealing methods must be checked. 4. Flexible Connection Configurations Straight, elbow, tee, male/female, plug, and cap designs support hydraulic port connections, pipeline routing, branching, maintenance, and repairs. Selected conversion adapters connect NPT with compatible NPSM or SAE ORB interfaces. 5. Precision CNC Manufacturing With 100+ CNC machines, JINGYE Fittings supports standard and custom hydraulic adapter production. Inspection focuses on thread taper, pitch, engagement, sealing surfaces, hex dimensions, and dimensional consistency across batches. 6. Materials and Corrosion Protection Standard adapters use C45 / SAE 1045 carbon steel and trivalent chromium zinc plating, typically 8–12 μm. Standard salt spray performance is ≥96 hours to white rust and ≥240 hours to red rust under specified conditions. SS304, SS316, SS316L, brass, and enhanced finishes can be evaluated for suitable custom designs. 7. Pressure and Connection Compatibility Selected NPT adapters cover 100–420 bar, depending on size, series, material, and connection design. Verify thread standard, port dimensions, sealing method, and pressure rating. The lowest-rated component limits the complete connection. 8. Quality Control JINGYE Fittings operates under an ISO 9001:2015 quality management system. Checks cover materials, thread gauging, critical dimensions, burr removal, sealing faces, coating condition, and visual quality. Pressure and leakage testing can be specified for individual projects. 9. OEM and Custom NPT Adapters Manufacturing from drawings, samples, and technical specifications supports special threads, reducers, elbows, tees, materials, surface finishes, and NPTF requirements. Customers can submit part numbers and drawings for engineering review, dimensional comparison, and quotation. 10. Flexible MOQ and Second-Source Support Most standard hydraulic adapters have no strict MOQ. Small-batch, mixed-SKU, bulk, and OEM orders are supported. In-stock items typically dispatch within 3–5 days; standard production takes approximately 30–45 days. Brennan, Parker, Eaton, and other supplier reference numbers may be submitted for dimensional comparison, specification verification, OEM manufacturing, and quotation. Interchangeability requires technical confirmation. 11. International Applications and Supply NPT adapters serve construction machinery, agricultural equipment, mining machinery, mobile hydraulics, industrial power units, and compatible oil and gas auxiliary hydraulic equipment. JINGYE Fittings supports customers in North America, Europe, Australia, and other markets with repeat orders, customized packaging, and long-term supply programs. JINGYE Fittings combines NPT adapter manufacturing, CNC precision, C45 materials, OEM customization, quality control, and second-source support for international hydraulic procurement.