Product ID: 80086622 – Hydraulic Cartridge Assembly / Hydraulic Cartridge Seal Assembly

Description:
This component is a hydraulic cartridge assembly, also known as a hydraulic cartridge seal assembly or oil seal cartridge, designed for high-pressure waterjet intensifier pumps . It is a pre-assembled sealing unit that serves as the primary sealing interface between the hydraulic piston (low-pressure side) and the high-pressure plunger assembly within the intensifier pump. The cartridge contains precision seals, O-rings, backup rings, and wear components configured specifically for the hydraulic (oil) side of the intensifier.

This assembly is compatible with KMT AccuStream SL-V (SL5) and SL-IV (SL4) series intensifier pumps, as well as Classic series and 50 HP intensifier configurations . Alternative or cross-reference part numbers include 1-13261, 5000213, SF80086622, 104431, and RSAC13261 . The product weight is approximately 0.05 kg (0.11 lbs) and it is rated for maximum working pressure of 4,137 bar (60,000 PSI) . The cartridge is constructed from brass, rubber, and plastic materials .

Applications:

• Used in waterjet intensifier pumps to seal the hydraulic (oil) side of the reciprocating piston assembly, separating hydraulic fluid from the high-pressure water section

• Installed within the hydraulic cylinder body, surrounding the piston rod or plunger, to prevent hydraulic oil leakage and contamination

• Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI (approximately 4,137 bar)

• Compatible with KMT pump models including SL-V (SL5), SL-IV (SL4), Classic series, and 50 HP intensifier assemblies 

• Specifically listed as component #8 in SL-IV series intensifier pump parts diagrams 

Features:

• Pre-Assembled Configuration: The hydraulic cartridge is supplied as a complete, ready-to-install unit, reducing installation errors and ensuring correct seal orientation and stacking order

• High-Pressure Rating: Engineered for continuous operation at 60,000 PSI (4,137 bar), ensuring reliable sealing under extreme pressure conditions

• Multi-Material Construction: Manufactured from durable materials including brass, rubber, and plastic, providing optimal wear resistance and sealing performance 

• Dynamic Sealing Capability: Designed for reciprocating motion applications on the hydraulic piston assembly, providing leak-free operation between the oil and water sections of the intensifier

• Oil Seal Function: Serves as the critical oil seal that prevents hydraulic fluid from migrating into the high-pressure water section, protecting both systems from cross-contamination

• Short Type Configuration: This specific cartridge uses the short type of oil seal design, which is dependent on the piston configuration. If the customer uses the short type of oil seal, do not replace with the long type, as this will cause damage to the parts 

• OEM Compatibility: Direct replacement part for KMT AccuStream waterjet systems, manufactured to original equipment specifications

Maintenance:

• Critical Component Identification: The hydraulic cartridge assembly is listed as item #8 in the complete intensifier parts diagram, appearing alongside other components including the HP cylinder (20460891), plunger assembly (05039771), seal head assembly (05116769), HP seal assembly (20422243), and hydraulic cylinder (05034764) 

• Type Compatibility (Critical): This is the short type of oil seal cartridge. Do not replace with the long type of oil seal, as this will cause damage to the intensifier components. However, intensifiers designed for the long type of oil seal can be replaced with the short type 

• Inspection: During pump overhaul or preventive maintenance, inspect the hydraulic cartridge assembly for signs of external leakage, seal extrusion, or oil bypass. Replace if any leakage or performance degradation is detected

• Replacement Schedule: The hydraulic cartridge seal assembly is a consumable component that should be replaced periodically based on operating hours or when signs of hydraulic oil leakage appear

• Full Depressurization: Always fully depressurize both the hydraulic system and the high-pressure water system before removing or servicing the hydraulic cartridge. Follow lockout/tagout procedures

• Repair Kit Availability: This hydraulic cartridge assembly can be rebuilt using the hydraulic cartridge seal kit (KMT# 80084759), which includes all necessary seals and components for overhaul 

• Torque Compliance: When reinstalling, tighten all retaining components to the torque values specified in the equipment service manual to ensure proper seating and prevent leaks

• Compatibility Verification: Before installation, verify that the cartridge matches the specific intensifier model (SL-V/SL-IV, Classic series) and pressure rating (60,000 PSI)