05104930-Autoline™-Abrasive-Nozzle-Assembly-O-Ring-50-x-63-x-06.1201.3-1

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Product Name: Autoline™ Abrasive Nozzle Assembly O-Ring (Part No. 05104930)

Description:
This component is an O-ring seal specifically designed for the Autoline™ series abrasive waterjet cutting head assembly . Its primary function is to provide a high-pressure, leak-tight seal between stationary components within the cutting head, preventing the escape of pressurized water and the ingress of abrasive garnet particles .

The part features a standard .50 x .63 x .06 inch size (approximately 1/2" ID x 5/8" OD x 1/16" CS) and is manufactured from durable polyurethane material with a 70 Durometer hardness rating . This specific material is chosen for its excellent wear resistance and ability to withstand the harsh, abrasive environment of waterjet cutting. According to the official parts diagram for the Autoline™ Abrasive Nozzle Assembly (Table 12-45), this O-ring is listed as Item 7, with a quantity of 2 required per assembly .

Applications:

Provides static sealing between components within Autoline™ series abrasive waterjet cutting heads .
Prevents high-pressure water and abrasive leakage at the nozzle body interface.
Used as a critical sealing component in both Autoline™ I and Autoline™ II nozzle assemblies .
Suitable for ultra-high pressure waterjet systems operating at 60,000–94,000 PSI (approximately 4,137–6,480 bar).

Features:

Polyurethane Construction: Provides excellent wear resistance and durability in abrasive waterjet environments .
70 Durometer Hardness: Offers balanced sealing properties and resistance to extrusion under high pressure.
Standard Dimensions: .50" ID x .63" OD x .06" cross-section for precise fit in designated grooves .
Critical Consumable Component: Designed for periodic replacement during nozzle maintenance to ensure leak-free operation.
Autoline™ Compatibility: Specifically designed for Autoline™ series cutting heads, ensuring seamless integration and optimal performance .
Direct OEM Replacement: Interchangeable with KMT #05104930, WSI #AB05104930, and WK000041 .

Maintenance:

Failure Diagnosis (When to Replace):

External Water or Abrasive Leakage: Visible water weeping or garnet dust escaping from the nozzle assembly indicates O-ring failure requiring immediate replacement .
Pressure Drop: Inability to maintain rated cutting pressure may indicate seal failure.
Visible Damage During Disassembly: Inspect the O-ring for nicks, cuts, flattening (compression set), hardening, or cracking. Any visible damage warrants replacement .
Scheduled Preventive Maintenance: Replace this O-ring during scheduled nozzle maintenance or whenever the nozzle assembly is disassembled.

Inspection and Replacement Guidelines:

Single-Use Component: The O-ring is a consumable sealing element. Always replace it with a new one whenever the nozzle assembly is disassembled. Do not reuse old O-rings.
Clean Area Maintenance: Perform the rebuild in a designated clean area. Contamination such as garnet particles, metal chips, or dust can negatively impact cutting performance .
Full Depressurization (Critical): Before any maintenance, fully depressurize the waterjet system and follow lockout/tagout procedures.
Surface Preparation: Thoroughly clean the O-ring groove and mating surfaces with a soft, lint-free cloth. Remove all debris, old seal residue, and abrasive particles.
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 high-pressure grease or O-ring lubricant to the O-ring during installation to prevent pinching, rolling, or tearing . Do not use petroleum-based lubricants as they can degrade the O-ring material.
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 nozzle assembly, tighten retaining components to the specific torque values listed in the equipment service manual. Over-tightening can damage seals and create additional repair issues, while under-tightening can cause leaks.
Component Relationships: In the Autoline™ assembly, this O-ring (Item 7, Qty 2) works in conjunction with other sealing components including O-Ring 05081518 (Item 6) and 05092887 (Item 8).
Storage: Store spare O-rings in a cool, dry environment away from direct sunlight, ozone sources, and chemicals to prevent premature aging.