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FITSCH’ main products is Fittings for hydraulic tube/hose and various industrial usage; Assembly of hydraulic hose and tube fabrication; Accessories such as clamps for hose and tube, non-return valve, hydraulic quick coupling, testing point coupling etc, we also offer custom fittings for customer’s OEM demand. Our product can be found on and around everything that moves such as fluid and gas handling, hydraulics, pneumatic etc.

HYDRAULIC FLANGE FITTINGS

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Hydraulic Flange Fittings & SAE Adapters Manufacturer

Welcome to Fitsch, your trusted china hydraulic flange manufacturer and global supplier of high-pressure fluid power connectors. With over 20 years of specialized manufacturing experience and a massive inventory across four production locations, we deliver reliable, leak-free piping architecture designed to withstand extreme mechanical loads, intense pressure surges, and severe system vibrations.

Whether you are looking for standard configurations or custom oem hydraulic flanges built to your precise CAD blueprints, Fitsch ensures elite structural integrity, competitive factory-direct pricing, and zero downtime.

Heavy-Duty SAE J518 Code 61 & Code 62 Standard Flanges

At Fitsch, we manufacture a comprehensive selection of 4 bolt hydraulic flange components strictly compliant with North American and international parameters. Our precision-engineered line ensures seamless cross-compatibility when searching for sae j518 flange dimensions and configurations.

Standard Pressure Series: Our sae code 61 flange dimensions strictly adhere to ISO 6162-1 standards, providing reliable seals for operating pressures ranging from 35 bar up to 350 bar depending on size.
High-Pressure Series: For heavy-duty industrial machinery, our sae code 62 high pressure flange components (ISO 6162-2) are engineered to perform flawlessly under severe high-pressure conditions up to 420 bar (6,000 PSI).

SAE J518 Code 61 and Code 62 4-bolt hydraulic flange dimensions and bolt pattern chart

High-Performance SAE Flange Hose Fittings

For dynamic fluid delivery systems, our premium SAE flange hose fittings offer robust connection points between high-pressure flexible hoses and solid valve blocks. These fittings are manufactured as one-piece interlock or two-piece crimped styles, engineered perfectly to withstand intensive mechanical twisting, pulse fatigue, and external abrasion in mobile agricultural, mining, and earthmoving applications.

Versatile SAE Flange Adapters & Thread Transitions

To handle complex plumbing configurations, Fitsch provides an elite line of SAE flange adapters that bridge four-bolt flange blocks seamlessly with localized pipeline systems. The hydraulic fittings ends are precisely engineered to meet cross-continental standards, including:

DIN 2353 24 Degree Cone Tube Connectors: Perfect for European cutting-ring and bite-type high-pressure solid piping layouts (Light and Heavy series).
JIC 37 Degree Flare Tube Connectors: Ensuring reliable metal-to-metal seals for traditional American mechanical plumbing configurations.
SAE J1453 O-Ring Face Seal (ORFS) Tube Connectors: Providing ultimate leak-free security in extreme-vibration applications using elastomeric soft seals.
BS 5200 60 Degree Cone Tube Connectors: Fully compatible with British standard parallel thread (BSPP) systems commonly found across marine and industrial machinery.

SAE Weld Flanges & Gear Pump Flanges for Industrial Machinery

To support varied assembly methodologies and specific power unit requirements, our factory supplies specialized heavy-duty connection components:

SAE Weld Flanges: For permanent, high-integrity pipeline connections, we manufacture premium socket-weld and butt-weld flanges. Available in forged carbon steel and stainless steel, these components are designed for optimal weldability and deep penetration to completely eliminate leakage under extreme pressure spikes.
Gear Pump Flanges: Engineered specifically for hydraulic pump and motor ports, our gear pump flanges (including European standard 3-bolt and 4-bolt configurations) provide a secure, low-profile interface. They optimize fluid intake and delivery, reducing cavitation risks and stabilizing system pressure in industrial power packs.

Non-Welded 37° Flare Flange Systems

To eliminate the risks of weld fatigue, pipeline cracking, and costly post-weld chemical cleaning, Fitsch offers elite non-welded piping alternatives. By combining a mechanical cold-flaring process with our robust hydraulic flange fittings, we provide a safer, cleaner, and faster connection mechanism for marine decks, offshore machinery, and heavy industrial plant manifolds.

Complete Fluid Power Connectivity Solutions

Our manufacturing group specializes in matching exact engineering requirements for global procurement managers. Browse our targeted component links to streamline your supply chain:

Flexible Hose Connections: Discover high-tolerance hydraulic hose flange fittings designed for crimped or reusable hose assemblies in agricultural, construction, and mining equipment.
International Standards Alignment: We provide a vast selection of iso 6162 flange fittings featuring metric or inch bolts, offering perfect conversion unions between European and American machinery footprints.
Maintenance & Repair Components: Download our split flange halves catalog to source premium carbon steel and replacement O-ring face seals.