Precision Hydraulic Fittings for Global Industry
ISO 9001 & IATF 16949 certified manufacturer of SAE flanges, hydraulic adaptors, manifold blocks, and specialty connectors. Trusted by leading engineering and machinery companies worldwide since 1998.
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ISO 9001 & IATF 16949 certified manufacturer of SAE flanges, hydraulic adaptors, manifold blocks, and specialty connectors. Trusted by leading engineering and machinery companies worldwide since 1998.
A trusted leader in hydraulic connection solutions with over 25 years of engineering excellence and global supply chain experience.
Yuyao Jiayuan Hydraulic Fitting Factory is a professional manufacturer of engineering machinery accessories and hydraulic pipe connections. Established in 1998, we specialize in high-performance hydraulic fittings that meet international standards including DIN, ISO, SAE, JIS, and BSP.
Our commitment to quality is reinforced by ISO 9001 and IATF 16949 certifications, ensuring every product meets the highest standards of reliability, durability, and leak-free performance.
High-performance hydraulic fittings engineered for reliability, durability, and leak-free connections across industrial applications.
SAE J514 Standard
The most popular type in the USA, designed with 37° flare for high-pressure applications. Ideal for construction, mining, and industrial machinery.
O-Ring Face Seal
O-ring face seal fittings provide leak-free performance under extreme vibration and pressure cycling. Ideal for mobile hydraulics and heavy equipment.
Reusable Design
Consists of ferrule and hose end. Reusable design reduces maintenance costs and allows for field repairs without replacing entire hose assemblies.
24° Cone Design
Popular metric thread sizes with 24° cone sealing. Widely used in European and Asian machinery. Ensures secure, leak-free connections.
4-Bolt & Split Designs
High-pressure flange connections for pumps, valves, and manifolds. Available in 4-bolt and split configurations for easy maintenance.
Custom Port Configurations
Precision-machined manifold blocks with custom porting. Reduce system complexity and leakage points in hydraulic circuits.
Japanese Industrial Standard
Designed according to JIS B8363 standards. Ideal for Japanese-made equipment and systems requiring high precision and reliability.
DIN & ORFS Options
Reliable tube connections with DIN and ORFS sealing options. Suitable for rigid tubing in industrial and mobile hydraulic systems.
Excellence in engineering, quality, and global service delivery.
ISO 9001 & IATF 16949 certified manufacturing ensures consistent quality and reliability.
Trusted by customers in over 50 countries with efficient international logistics.
OEM/ODM support with custom designs, materials, and packaging options.
Efficient production and inventory management ensure on-time delivery.
Our fittings comply with international standards including ISO, DIN, SAE J514, JIS B8363, and BSP. We ensure dimensional accuracy and performance consistency across all product lines.
Yes, we offer full custom design and CNC machining services for manifold blocks based on your port configuration, material, and pressure requirements.
We manufacture fittings in carbon steel, stainless steel (304, 316), and brass. Material selection depends on pressure, temperature, and fluid compatibility requirements.
Yes, we provide comprehensive OEM and ODM support, including custom branding, packaging, and product development based on client specifications.
Contact us for product inquiries, custom solutions, or partnership opportunities.
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