Sealing Head SP-71-9 Water Waterjet-Quartz-High-Pressure-Water-Jet-Cutter-With-Abrasive-p.html target='_blank'>Jet Cutting Machine Parts For Techni

The SP-71-9 Sealing Head is a genuine Waterjet Pump-Good-Quality-Natural-Materials-Water-Jet-Cutter-For-Sale-p.html target='_blank'>Intensifier Pump component that provides the high-pressure seal between the pump’s cylinder liner and head cover, ensuring no hydraulic fluid leakage during the high-pressure stroke. Manufactured to OEM tolerances, this stainless-steel and elastomer assembly is critical for maintaining 60 000 psi (4 100 bar) operation in Gen 2 and Gen 4 pumps.

Part Overview
Part Number:SP-71-9
Name:Sealing Head
Techni OEM Code:SP-71-9 (Article 12437)
Material:Stainless steel housing; precision elastomer sealing element
Function:Provides high-pressure hydraulic seal in intensifier pump head
Compatible With:Cylinder liner SP-69-9, check-valve assemblies, head cover

Installation & Maintenance
System Shutdown & Depressurize: Fully isolate and relieve hydraulic pressure.
Head Disassembly: Remove the intensifier head cover to expose the sealing head and cylinder liner.
Remove Old Seal: Extract the worn SP-71-9 assembly; inspect the liner and cover surfaces for scoring.
Clean & Prepare: Degrease and lightly hone the bore; ensure no sharp edges.
Install New SP-71-9: Press the sealing head into the cylinder head cover until fully seated.
Reassemble & Test: Reinstall cover, repressurize at low pressure to seat the seal, then ramp to full pressure while checking for leaks.

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