Check Vavle Flat Washer 201277
Product Name: Check Valve Flat Washer / Check Valve Seal (Part No. 201277)
Description:
This component is a flat washer, also known as a check valve seal or O-ring, specifically designed for the check valve assembly in high-pressure waterjet intensifier pumps . It is a precision sealing component that serves as a critical static seal within the check valve assembly, preventing high-pressure water leakage between mating surfaces .
The flat washer is manufactured from high-durability elastomeric material and is designed to withstand the extreme pressure cycling and erosive conditions of ultra-high pressure waterjet operation. It is a standard component in check valve repair kits and is used in conjunction with other check valve components including valve seats, ceramic balls, and retaining screws .
Applications:
Provides static sealing within the check valve assembly of waterjet intensifier pumps
Installed between the valve body and other mating components to prevent water leakage
Used in OMAX, AccuStream, MAXIEM, and KMT waterjet intensifier systems
Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI and above
Features:
Precision Sealing Surface: Manufactured to exact tolerances for leak-proof operation
Elastomeric Construction: Provides flexibility and conformability for reliable static sealing
Critical Consumable Component: Designed for periodic replacement during check valve maintenance
OEM Compatibility: Direct replacement for OMAX #201277, AccuStream 1-12023, and equivalent parts
High-Pressure Rating: Engineered for continuous operation at 60,000+ PSI
Maintenance:
Failure Diagnosis:
External Water Leakage: Visible water weeping from the check valve body or around the retainer nut indicates flat washer seal failure
Pressure Drop: Inability to maintain rated cutting pressure may indicate worn or damaged sealing components
Visible Damage During Inspection: Check for nicks, cuts, hardening, cracking, or permanent compression set
Associated Component Failure: If the check valve leaks or operates incorrectly, inspect this flat washer along with the valve seat, ball, and other seals
Replacement Guidelines:
Always Replace During Service: The flat washer is a single-use consumable component. Replace with a new one whenever the check valve assembly is disassembled for maintenance
Replace as Part of Kit: This component is included in check valve repair kits (P/N 301353, WO040005) which contain (6) seats, (6) ceramic balls, (12) screws, and (12) flat washers/seals
Clean Installation: Thoroughly clean the sealing groove and mating surfaces before installing a new flat washer. Remove all debris, old seal residue, and mineral deposits
Lubrication: Apply a thin layer of high-pressure grease during installation to ensure proper seating and prevent dry start-up
Full Depressurization: Always fully depressurize the waterjet system and follow lockout/tagout procedures before removing the check valve assembly or replacing the flat washer
Inspect Mating Surfaces: Check the valve body and retainer sealing surfaces for nicks, scratches, or damage that could compromise seal integrity
Torque Compliance: When reinstalling the check valve retainer, tighten to the specific torque value listed in the equipment service manual to ensure proper seal compression without over-compression
Cross-Reference Information:
