Product Name: O-Ring, 1.50 x 1.75 x .13 (Part No. 10074953)

Description:
This component is a precision O-ring seal with nominal dimensions of 1.50 inches inner diameter (ID), 1.75 inches outer diameter (OD), and 0.13 inches cross-section (CS). It is manufactured from high-durability elastomer material and is specifically designed for static sealing applications in waterjet cutting systems .

This O-ring serves as a critical sealing component within the waterjet hydraulic power package, which provides the high-pressure hydraulic power required to drive the waterjet intensifier pump . The waterjet hydraulic power package is a specialized hydraulic power unit designed specifically to generate the ultra-high pressure water stream used for cutting materials .

When installed, the O-ring provides a leak-proof barrier between mating components, preventing hydraulic fluid leakage and maintaining system pressure integrity. A failed O-ring can lead to oil-water mixing or external leakage, which can compromise cutting performance and damage system components .

Applications:

• Seals critical interfaces within the waterjet hydraulic power package assembly

• Provides static sealing between mating components in the hydraulic system

• Prevents hydraulic fluid leakage that could lead to pressure loss and component damage

• Used in hydraulic power packages for waterjet intensifier pumps

• Suitable for 60,000-94,000 PSI (approximately 4,137-6,480 bar) waterjet systems

• Compatible with KMT and other standard waterjet systems 

Features:

• Precision Dimensions: 1.50" ID × 1.75" OD × 0.13" CS

• Weight: Approximately 0.006 lbs (extremely lightweight for easy handling) 

• High-Pressure Compatibility: Engineered for demanding waterjet hydraulic applications

• Static Sealing Application: Designed for non-moving (static) interfaces

• Critical System Component: Essential for maintaining hydraulic system integrity and preventing fluid leaks

• OEM Specification: Direct replacement for original equipment manufacturer part number 10074953

• Hydraulic Fluid Compatibility: Suitable for petroleum-based hydraulic oils used in waterjet systems 

• Cross-Reference Compatibility: Interchangeable with KMT part numbers and other industry equivalents 

Maintenance:

Failure Diagnosis (When to Replace):

• External Hydraulic Leakage: Visible oil weeping from the power package assembly indicates O-ring failure requiring immediate replacement 

• Oil-Water Mixing: Milky or discolored hydraulic oil indicates seal failure allowing water intrusion 

• Pressure Drop: Inability to maintain rated cutting pressure may indicate seal degradation allowing fluid bypass

• Visible Damage During Inspection: Inspect the O-ring for nicks, cuts, flattening (compression set), hardening, or cracking. Any visible damage warrants immediate replacement 

• Scheduled Preventive Maintenance: It is standard practice to inspect seals and O-rings regularly and replace worn or damaged seals promptly 

Inspection and Replacement Guidelines:

• Inspection Frequency: High-pressure O-rings should be checked for wear during routine pump maintenance intervals

• Single-Use Component: O-rings are consumable sealing elements. Always replace with a new one whenever the power package assembly is disassembled. Do not reuse old O-rings

• Full Depressurization (Critical): Before any maintenance, place the main electrical disconnect in the OFF position, fully depressurize both the hydraulic system and the high-pressure water system, and follow lockout/tagout procedures

• Proper Removal: Use a dental pick or O-ring removal tool to carefully remove the damaged O-ring from its groove without scratching sealing surfaces

• Surface Preparation: Thoroughly clean the O-ring groove and mating surfaces with a soft, lint-free cloth. Remove all debris, old seal residue, and mineral deposits

• Groove Inspection: Inspect the seal groove for nicks, burrs, or damage that could cut or abrade the new seal

• Lubrication: Apply a thin, uniform layer of manufacturer-recommended hydraulic oil or O-ring lubricant to the new O-ring during installation to prevent pinching, rolling, or tearing 

• Proper Seating: Ensure the O-ring is not twisted and is fully seated in its groove before reassembling mating components

• Torque Compliance: When reassembling the power package, tighten all retaining hardware to the specific torque values listed in the equipment service manual

• Storage: Store spare O-rings in a cool, dry environment (15-25°C, humidity <65%) away from direct sunlight, ozone sources, and chemicals to prevent premature aging

• Quality Assurance: Ensure replacement O-rings meet OEM specifications for material composition and dimensional accuracy

• Cross-Reference Information: 10074953 is listed as a standard O-ring component for waterjet hydraulic power packages; compatible with KMT part numbers