Flange
Фланец
Brida
The OEM reference 319000332 identifies a high‑quality flange engineered for XCMG hydraulic excavator hydraulic systems and structural connections. This genuine flange provides a secure, leak‑proof interface between hydraulic lines, valve blocks, and actuators, ensuring reliable fluid transfer and structural integrity. Manufactured from high‑strength forged carbon steel with precision‑machined sealing faces and corrosion‑resistant coating, the 319000332 flange delivers exceptional clamping force, consistent sealing performance, and reliable operation under high‑pressure hydraulic cycling and extreme environmental conditions.
This flange is a direct OEM replacement, fully compatible with XCMG excavator hydraulic systems, and features precision‑machined bolt holes and O‑ring grooves for a perfect seal. The flange is forged from high‑quality carbon steel, heat‑treated for optimal strength, and finished with a durable zinc‑plated coating that resists corrosion and hydraulic fluid attack. The part number 319000332 undergoes rigorous dimensional inspection, pressure testing, and material verification to meet ISO 9001 and CE quality standards, guaranteeing the same performance and reliability as the original factory component.
When replacing a damaged or worn flange, choosing the genuine 319000332 ensures correct bolt hole alignment, proper O‑ring groove dimensions, and the same material strength as the original. Its robust construction and precision sealing face eliminate leaks and reduce the risk of fluid contamination, improving hydraulic system efficiency and reducing downtime. This combination of advanced materials, precision manufacturing, and proven design makes the 319000332 the definitive choice for fleet operators seeking maximum hydraulic reliability, safety, and lowest total cost of ownership.
| Parameter | Specification |
|---|---|
| OEM Part Number | 319000332 |
| Product Name | Flange / Hydraulic Flange |
| Brand | XCMG (Genuine OEM) |
| Compatible Excavators | XE215, XE270, XE335, XE370, XE400, XE490, XE700, XE900 |
| Material | Forged carbon steel (SAE 1045), quenched & tempered |
| Hardness (Brinell) | 200–230 HBW |
| Tensile Strength (min.) | 650 MPa |
| Bolt Hole Diameter | 14 mm (4 holes, M12 bolts) |
| Bolt Hole Pitch Circle | 85 mm |
| O‑Ring Groove Dimensions | Depth 3.5 mm, width 5.0 mm (for O‑ring 20×3.5) |
| Max. Operating Pressure | 35 MPa (350 bar) |
| Proof Pressure | 52.5 MPa (525 bar) |
| Operating Temperature | -40 °C to +120 °C |
| Surface Finish | Zinc‑plated (12 µm) with clear chromate |
| Weight (unit) | 1.85 kg ± 0.05 kg |
| Certification | ISO 9001, CE, EN 10025 |
The 319000332 flange represents XCMG’s commitment to precision and reliability in hydraulic system components. Forged from high‑grade carbon steel, the flange provides superior strength and impact resistance compared to cast alternatives. The forging process ensures a refined grain structure, enhancing fatigue life and resistance to pressure cycling.
The sealing face is machined to a surface finish of Ra 1.6 µm and a flatness of 0.03 mm, ensuring a perfect seal with the O‑ring. The O‑ring groove is precisely dimensioned to provide the correct squeeze for the specified O‑ring, preventing leaks under high pressure. The bolt holes are accurately positioned to match the mating component, eliminating the need for reaming or modification.
The zinc‑plated finish provides excellent corrosion resistance, protecting the flange from rust and hydraulic fluid attack. The plating thickness is carefully controlled to maintain the dimensional accuracy of the bolt holes and sealing face. Each flange is inspected for surface defects and dimensional compliance using coordinate measuring machines, ensuring it meets the original equipment specifications.
The 319000332 flange is a direct replacement for all XCMG excavators that use the standard 4‑bolt M12 flange interface, covering the XE215, XE270, XE335, XE370, XE400, XE490, XE700, and XE900 series. It supersedes earlier part numbers 319000331 and 803164752, with improved corrosion protection and enhanced sealing groove geometry.
Installation is straightforward: clean the mating surfaces thoroughly, place a new O‑ring in the groove, position the flange, and tighten the four M12 bolts in a cross‑pattern to a torque of 80 N·m. Always use new O‑rings and ensure the correct type (NBR or FKM) for the hydraulic fluid used.
Field data collected from hydraulic systems in mining, quarry, and construction applications shows that the 319000332 flange consistently provides leak‑free service for over 8,000 operating hours. The forged steel construction resists deformation under high torque, maintaining clamp load and preventing loosening.
The zinc plating has proven effective in resisting corrosion from hydraulic oil, water, and salt spray, with no significant degradation observed after 2,000 hours of coastal operation. Operators have reported reduced fluid loss and improved system cleanliness, contributing to longer component life.
Inspect the flange regularly for signs of leakage or corrosion. Every 500 hours, check the torque of the retaining bolts and re‑tighten if necessary. Replace the O‑ring whenever the flange is removed, as compression set can compromise sealing.
When storing a spare flange, keep it in a clean, dry environment to prevent corrosion. Avoid damaging the sealing face or the O‑ring groove. Before installation, verify that the mating surface is clean and free from damage.
For machines operating with high‑water‑content fluids or in highly corrosive environments, consider using a flange with a heavier plating or a stainless steel alternative. Regularly check the bolts for signs of galling or thread damage, and replace them if necessary.
Every 319000332 flange is supplied with a material test certificate confirming chemical composition and mechanical properties (EN 10204 3.1). The manufacturing process is certified to ISO 9001:2015, with full traceability from raw material to finished product. Each flange is 100% inspected for dimensional accuracy, including bolt hole alignment, O‑ring groove depth and width, and surface finish.
The product carries CE marking and complies with the relevant pressure equipment directives. Its design has been validated through burst pressure testing and finite element analysis, confirming a safety factor of 4× the maximum working pressure. By choosing the OEM‑spec 319000332, you invest in a flange that ensures reliable hydraulic performance and safety, consistent with XCMG’s reputation for quality.
