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Product Name | Sanheng 1CB / 1DB Hydraulic METRIC DIN to BSPP Male Thread Adapter |
Code | 1CB-WD 1DB-WD |
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 1CB-WD (light series) and 1DB-WD (heavy series) adapters are purpose-built to solve the unique challenge of connecting metric DIN hard tubing to British Standard Parallel Pipe (BSPP) ports in industrial hydraulic systems. Unlike generic thread-to-thread adapters that rely solely on thread sealing, this component integrates a progressive bite-type ferrule mechanism with an integrated captive ED end-face seal, creating a dual-redundant leak-proof system specifically optimized for rigid steel tubing. Manufactured via one-piece closed-die forging with single-setup CNC machining, it delivers perfect concentricity between the metric ferrule seat and BSPP thread, eliminating misalignment-induced leaks that plague poorly aligned cross-standard connections. The precision-calibrated ferrule bites uniformly into the tubing wall to form a permanent mechanical lock, while the ED seal provides secondary protection against thermal expansion and contraction. Suitable for conveying hydraulic oil, industrial water and compressed gases, it drastically reduces installation time and maintenance costs for mixed-standard hard tubing networks.
Manufactured in strict compliance with DIN 2353 and BS EN 10226-1 international standards, all ferrule seat angles, thread pitches and ED seal groove dimensions are controlled to ±0.03mm tolerances. Carbon steel variants pass 96-hour neutral salt spray testing without red rust, while 316L stainless steel versions withstand over 500 hours of salt spray exposure. Each adapter undergoes 100% pressure testing at 1.5 times the rated working pressure before delivery. Complete ferrule pre-assembly instructions, tubing preparation guides and material certification reports are available upon request, and all adapters are fully interchangeable with equivalent products from global mainstream brands.
Progressive Dual-Edge Ferrule Bite: Precision-forged two-piece ferrule creates a uniform 360° mechanical lock on the tubing wall, forming a primary metal-to-metal seal that resists pull-out forces up to 80% of the tubing's burst strength.
Dual-Redundant Sealing System: Integrated captive ED end-face seal provides secondary leak protection, compensating for minor surface imperfections and thermal expansion/contraction that can cause leaks in single-seal designs.
Pre-Assembly Friendly Threads: Cold-rolled BSPP threads deliver a smooth, consistent torque feel during installation, allowing technicians to achieve proper ferrule compression without specialized hydraulic tools.
Full-Bore Flow Geometry: Seamless internal transition between metric tubing and BSPP port eliminates flow restrictions and turbulence, maintaining maximum system efficiency even at high flow rates.
Vibration-Resistant Locking: Once properly assembled, the ferrule creates a permanent mechanical interlock with the tubing, preventing joint loosening even under continuous high-frequency machinery vibration.
Reusable Design: The precision-machined ferrule can be disassembled and reassembled up to 5 times without compromising sealing performance, simplifying system modifications and maintenance.
Carbon Steel (RoHS-Compliant Cr3+ Zinc Plated)
Adopts a high-adhesion trivalent chromium zinc plating process with a minimum thickness of 8μm, providing excellent rust and oxidation resistance. It offers exceptional tensile strength and cost-effectiveness, making it ideal for general industrial hydraulic systems, construction machinery and indoor manufacturing equipment.
304/316L Stainless Steel (Citric Acid Passivation)
Uses low-carbon stainless steel billets processed through an eco-friendly citric acid passivation treatment, which removes surface free iron and forms a dense, self-healing chromium oxide film. This enhances acid, alkali and salt spray corrosion resistance by 300% compared to untreated steel, perfectly suited for marine engineering, offshore oil & gas and food processing applications.
Brass (Optional)
Customizable lead-free brass material with excellent electrical conductivity and anti-spark properties, ideal for hazardous explosive environments, natural gas distribution systems and electrical grounding applications.
Imported Equipment Localization Retrofit: Perfect for connecting metric hard tubing on European-made machinery to domestic BSPP-standard valves, pumps and manifolds, eliminating the need for costly system redesign.
Hydraulic Power Unit Hard Tubing: Ideal for rigid tubing runs in hydraulic power stations and machine tools, where low leakage and high vibration resistance are critical for continuous operation.
Marine & Offshore Engineering: Stainless steel variants for ship engine room piping and offshore platform hydraulic systems, providing long-term corrosion resistance in salt spray and humid marine atmospheres.
Industrial Automation: Used in precision pneumatic and hydraulic control systems, where consistent sealing performance and minimal pressure loss are essential for accurate actuation.
Chemical Processing: 316L stainless steel version for corrosive chemical transfer lines, with ED seals available in FKM and EPDM materials for compatibility with aggressive media.
The adapter body is formed in a single operation via 1200-ton hot closed-die forging, which aligns the metal grain flow along the load path to maximize fatigue resistance and burst strength. All critical surfaces—including the ferrule seat, BSPP thread and ED seal groove—are machined in a single setup on 5-axis CNC lathes, ensuring perfect concentricity and eliminating alignment errors. Each batch undergoes rigorous quality testing, including ferrule pull-out tests, pressure cycling tests and salt spray evaluations, to guarantee consistent performance across every unit.\
To assist your engineering and procurement teams in making informed decisions, we have compiled detailed responses to the most common inquiries regarding our hydraulic thread adapters and manufacturing capabilities.
Every production run is subjected to a comprehensive quality matrix. This includes optical comparator checks for thread pitch accuracy, salt spray testing to verify the integrity of the Cr3+ zinc plating and passivation layers, and hydrostatic burst testing to ensure the forged bodies exceed standard operational pressures without deformation.
The captive elastomeric seal provides a resilient, secondary barrier that conforms to micro-imperfections on the mating surface. Unlike pure metal-to-metal seals that can be compromised by vibration or slight misalignment, the ED seal absorbs dynamic system shocks, ensuring a leak-proof connection even under severe, continuous pressure pulsations.
Absolutely. As a fully integrated manufacturer equipped with advanced CNC turning centers, our engineering department can work directly with your CAD drawings to produce bespoke adapters. Whether you require unique thread pitches, extended body lengths, or specialized alloys for extreme chemical resistance, we can facilitate your custom designs.
The OEM process begins with a detailed technical consultation to define your specifications and branding requirements, such as laser marking. We then produce and dispatch a sample batch for your physical evaluation. Once approved, bulk production commences, with standard lead times reliably held at approximately 30 days, depending on the complexity and volume of the order.
We utilize a robust, multi-layered packaging strategy specifically designed for heavy industrial components. Each adapter is fitted with custom thread protectors, sealed in anti-corrosion plastic bags, and packed into reinforced, blank export cartons. We coordinate closely with leading freight forwarders to ensure optimal routing, providing you with full tracking visibility from our loading dock directly to your facility.
