Fittings and Flanges
1500BAR High-pressure / High-strength material / Special heat treatment / Multi-layer steel wire winding / Self-tightening seal / Precision forging / 100% inspection / Quick connect/disconnect / Long-life design
Product Overview
Fittings and flanges are essential components for connecting, branching, redirecting, and sealing hydraulic lines. Available in ferrule, flare, and welded configurations, they are manufactured from carbon steel and stainless steel to meet DIN, JIS, GB, and other international standards. Widely used across hydraulic systems, they ensure reliable sealing and vibration resistance under high-pressure conditions.
Key Features
Multiple connection types: ferrule, flare, welded, flanged
24-degree cone seal or O-ring seal, working pressure up to 63 MPa
Pre-assembled ferrule design with superior vibration resistance to prevent loosening and leakage.
Carbon steel, 304/316 stainless steel; suitable for various media and environments.
Compatible with major international standards including DIN, JIS, SAE, and GB
CNC precision machining, surface roughness Ra ≤ 0.8 μm
Technical Specifications
| Parameter Item | Specification Value |
|---|---|
| Diameter Range | M8 to M64 (4mm to 50mm) |
| work stress | ≤6 3MPa (varies by specification and material) |
| Material Grade | Carbon Steel (ST37.4), 304 Stainless Steel, 316 Stainless Steel |
| Connection Type | Swage, Flare, Welded, Flanged |
| Sealing type | 24° conical seal, O-ring seal, spherical seal |
| Surface Treatment | Galvanized, nickel-plated, passivated, blackened |
| Thread Standard | Metric threads, NPT, BSP |
| Execution Standard | DIN 2353, ISO 8434, GB/T 3733-3765 |
| Operating Temperature | -40°C to +200°C (depending on sealant) |
| Surface roughness | Ra ≤ 0.8 μm (sealing surface) |
| Detection Method | 100% Dielectric Withstanding Voltage Test, Salt Spray Test (Optional) |
Use Cases
Construction Machinery
Hydraulic hose connections for excavators, loaders, and other equipment
Industrial Hydraulic
Hydraulic station, cylinder, motor and other component piping connections
Shipbuilding & Offshore Engineering
Piping connections for ship hydraulic systems and offshore platforms
Energy Equipment
Hydraulic piping connections for wind, hydro, and other energy equipment
Machine Tool Equipment
Precision piping connections for CNC machine tool hydraulic systems