O-ring ,-012 200377
Product Name: O-Ring, -012 (Part No. 200377)
Description:
The O-Ring 200377 is a standard AS568 size -012 elastomeric sealing ring, specifically designed for high-pressure waterjet cutting systems. This component is typically manufactured from high-grade elastomers such as nitrile (Buna-N) or Viton (FKM), chosen for their excellent resistance to water, hydraulic fluids, and the extreme mechanical stresses of ultra-high pressure (UHP) operation .
Primarily functioning as a static seal, the O-Ring 200377 is installed in precision-machined grooves within critical assemblies, including the seal retainer, port adapter, high-pressure valve stack, and water filter housings . It is a core component of the dynamic seal assembly (P/N 302950), working in conjunction with other seals to ensure a leak-proof barrier between mating surfaces .
This part is an OEM direct replacement for OMAX (200377), AccuStream, WSI (MX200377), and KMT waterjet systems, and is rated for continuous use at pressures up to 60,000 PSI (approximately 4,137 bar) .
Applications:
Provides static sealing in high-pressure ports, adapters, and retainer assemblies .
Used as a component in Dynamic Seal Kits (P/N 302950) for pump maintenance .
Seals interfaces in water filter housings and high-pressure valve stacks.
Compatible with OMAX EnduroMAX, Maxiem, KMT, AccuStream, and WSI waterjet systems .
Features:
Standard AS568 Size -012: Guarantees dimensional consistency for a precise, industry-standard fit .
High-Pressure Compatibility: Formulated to withstand severe compression and extrusion forces at 60,000+ PSI .
Critical Consumable Component: Designed specifically for periodic replacement during preventative maintenance schedules (Inspect/Replace) .
Application Specific: Explicitly listed as a constituent part of the OEM Dynamic Seal Assembly (302950), confirming its criticality in dynamic applications .
Maintenance:
Failure Diagnosis:
Hydraulic Pressure Fluctuations: A drop in system pressure or erratic intensifier cycling may indicate that internal high-pressure seals (including this O-ring) have failed .
Visible External Leakage: Presence of water weeping from adapter joints or filter housings directly indicates a breach in the static seal integrity .
Physical Damage During Inspection: When disassembled, the O-ring must be replaced if it shows signs of nicks, cuts, flattening (compression set), or hardening.
Inspection and Replacement:
Single-Use Policy: This is a single-use consumable. It must be replaced with a new one every time the assembly it belongs to is disassembled. Do not reuse old O-rings.
Preventative Schedule:
Filter Housing: The filter housing O-ring should be inspected periodically and replaced every 2 years or immediately if leaking is detected .
System Overhauls: This O-ring is classified as a "Replace" component during Minor Maintenance and Major Maintenance procedures for the pump.
Kit Replacement: This O-ring is a standard component in maintenance kits, specifically the Dynamic Seal Assembly (302950) where it is included alongside O-Ring 201707 and Dynamic Seal 302951 .
Installation Procedure:
Full Depressurization (Critical): Always fully depressurize the waterjet system and follow lockout/tagout procedures before disassembly.
Surface Preparation: Thoroughly clean the O-ring groove and mating surfaces with a soft cloth. Ensure no debris, old seal residue, or scratches are present.
Lubrication: Apply a thin, uniform layer of manufacturer-recommended high-pressure grease to the O-ring during installation to prevent pinching, rolling, or tearing.
Seating Verification: Ensure the O-ring is not twisted and is fully seated in its groove before reassembling mating components.
Torque Compliance: Tighten the retaining nut or housing cap to the specific torque value listed in the equipment service manual.
