Product Name: Spring, Check Valve / Part No. 510000381

Description:
This component is a check valve spring, a precision-wound helical compression spring designed specifically for the check valve assembly within a waterjet intensifier pump . It is typically made from corrosion-resistant spring steel and is positioned behind the valve poppet or ball . The spring provides the necessary seating force to ensure the valve closes quickly and seals completely when forward flow stops or reverse flow occurs .

Applications:

• Provides the closing force for the valve poppet or ball in the check valve assembly .

• Ensures immediate shut-off when reverse pressure is detected to prevent backflow .

• Assists in maintaining proper valve timing and sealing integrity.

• Used in both the inlet (low-pressure) and outlet (high-pressure) check valves of the intensifier pump.

Features:

• Corrosion-Resistant Steel Construction: Manufactured from high-grade stainless spring steel for durability in waterjet environments .

• Precision-Wound Design: Provides consistent spring rate (force) for reliable valve closure under all operating pressures .

• Compression Spring Configuration: Helical design provides axial force against the valve poppet or ball .

• Lightweight & Compact: Small size allows integration into the valve body without impeding water flow.

Maintenance:

• Inspection for Fatigue: During check valve overhaul, inspect the spring for signs of fatigue, breakage, loss of tension, or permanent deformation (shortening) .

• Replacement Criteria: Replace the spring immediately if it shows any sign of damage or weakness. A weak spring can cause delayed valve closing and pressure fluctuations .

• Set Replacement: It is standard practice to replace the spring as part of a complete check valve repair kit (including the poppet/ball and seat) to ensure all wear components are renewed together .

• Handling: Ensure the spring cavity in the valve body is clean and free of debris before installation .

• Full Depressurization: Always fully depressurize the waterjet system and follow lockout/tagout procedures before accessing the check valve spring .