Product ID: 05007786 – Flange, Seal Hydraulic (Hydraulic Cartridge Flange / Bushing Retainer Flange)

Description:
This component is a hydraulic seal flange, also known as a bushing retainer flange or hydraulic cartridge flange, designed specifically for high-pressure waterjet intensifier pumps . It is a precision-machined ring-shaped stainless steel component that serves as a critical retaining and alignment element for the hydraulic seal cartridge assembly within the intensifier .

The flange is used specifically with the 0.88 inch (7/8") plunger block and is rated for intensifier pumps operating at 55,000–60,000 PSI (approximately 3,800–4,137 bar) . This component works in conjunction with the ceramic plunger and bushing assembly, ensuring proper concentricity and alignment during high-frequency reciprocating motion . Cross-reference part numbers include 1-12564 and KMT#05007786 .

Applications:

• Used in waterjet intensifier pumps to retain and align the bushing assembly that guides the reciprocating ceramic plunger 

• Installed in the hydraulic seal cartridge area of intensifier pumps, specifically on the 0.88 inch plunger block

• Suitable for ultra-high pressure waterjet systems operating at 55,000–60,000 PSI (3,800–4,100 bar)

• Compatible with all SL-IV, SL-V, Classic series, and OEM intensifier assemblies ranging from 15 to 60 horsepower 

Features:

• Stainless Steel Construction: Corrosion-resistant stainless steel material provides durability in harsh waterjet operating environments 

• Precision-Machined Internal Bore: The internal bore is finished to a high standard of smoothness to prevent unnecessary wear on the ceramic plunger 

• Critical Alignment Component: Concentricity of the bushing retainer flange is critically important for proper plunger alignment during operation 

• 60,000 PSI Pressure Rating: Engineered to withstand extreme pressure cycling at 3,800–4,100 bar without deformation or fatigue failure

• Lightweight Design: Approximately 0.5 kg (1.1 lbs) for easy handling during maintenance 

Maintenance:

• Critical Alignment Component: The concentricity of the bushing retainer flange is critically important. Poor concentricity can cause ceramic plunger damage or breakage during operation 

• Regular Inspection: It is strongly recommended to inspect the bushing retainer flange regularly for signs of internal bore wear, galling, or surface degradation 

• Bore Condition Check: Pay particular attention to the smoothness and roundness of the internal bore. If the internal bore becomes rough, scored, or out-of-round, replace the flange immediately to prevent plunger damage 

• Preventive Replacement: Even if no visible damage is present, periodic replacement of the bushing retainer flange as part of scheduled preventive maintenance is recommended to ensure continued proper plunger alignment 

• Full Depressurization: Always fully depressurize both the hydraulic system and the high-pressure water system before removing or servicing the flange

• Concentricity Verification: When reinstalling, ensure the flange is properly seated and concentric with the plunger axis to prevent uneven wear or stress on the ceramic plunger

• Compatibility Check: Ensure the replacement flange matches the specific intensifier model (0.88 inch plunger block, 55,000–60,000 PSI rating, SL-IV/SL-V/Classic series compatibility)