Check Valve Screw 300734
Product Name: Check Valve Screw (Part No. 300734)
Description:
This component is a socket head cap screw specifically designed for the check valve assembly in high-pressure waterjet cutting systems . It is a stainless steel threaded fastener with precise SAE dimensions: 4-48 thread (No. 4 diameter with 48 threads per inch) and 3/8 inch length . The screw features a hex socket drive (Allen head) for secure tightening with standard hex keys. This component is used to secure internal check valve components, ensuring proper assembly and leak-free operation under ultra-high pressure conditions.
Applications:
Secures internal components within the check valve assembly of waterjet intensifier pumps
Installed as part of the check valve or poppet valve assembly to retain valve elements in position
Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI and above
Compatible with OMAX and AccuStream waterjet intensifier pumps
Features:
Stainless Steel Construction: Provides excellent corrosion resistance and durability in waterjet environments
Precision SAE Threads: 4-48 thread specification (No. 4 diameter with 48 threads per inch) ensures accurate fit in designated threaded holes
Socket Head Design: Hex socket drive allows secure tightening in confined spaces and provides reliable torque transmission
OEM Compatibility: Direct replacement for OMAX #300734 and AccuStream 1-12006
Critical Assembly Component: Used in check valve repair kits and maintenance procedures
Maintenance:
Failure Diagnosis:
External Water Leakage: Leakage from the check valve area may indicate the screw has loosened due to vibration
Thread Damage: Stripped or cross-threaded screws prevent proper tightening and sealing
Visible Wear: Inspect for thread galling, corrosion, or hex socket rounding during disassembly
Inspection and Replacement Procedures:
Replace During Check Valve Overhaul: It is recommended to replace this screw whenever the check valve or poppet valve assembly is disassembled as part of a complete check valve repair kit
Thread Lubrication: Apply a thin layer of anti-seize compound or high-pressure grease to threads during reassembly to prevent galling
Torque Compliance: Tighten to the specific torque value listed in the equipment service manual. Do not overtighten
Full Depressurization: Always fully depressurize the waterjet system and follow lockout/tagout procedures before disassembling the check valve assembly
Replacement Indicators: Replace immediately if threads are damaged, the hex socket is stripped, or the head shows signs of deformation
Cross-Reference Information:
