Sealing head body

Short Description:

Used for the SL-VI 100HP pump.
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Details

Sealing Head Body – High-Pressure Intensifier Component

Description:
This component is a sealing head body for high-pressure waterjet cutting systems. It is a precision-machined stainless steel housing that serves as the structural foundation of the sealing head assembly, which mounts at the high-pressure end of the intensifier pump. The body contains internal cavities and precision sealing surfaces that house the inlet check valve, outlet check valve, high-pressure seals, and the interface to the high-pressure cylinder .

Applications:

Used as the primary structural housing at the high-pressure end of an intensifier pump in waterjet cutting machines .
Installed between the high-pressure cylinder and the high-pressure outlet plumbing to direct pressurized water toward the cutting head .
Houses the inlet poppet valve, outlet poppet valve, and associated sealing components that control unidirectional water flow .
Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI to 90,000 PSI (approximately 4,137 bar to 6,200 bar) .

Features:

Constructed from hardened stainless steel, typically 316L grade, providing excellent corrosion resistance and durability in abrasive, water-rich environments .
Precision-machined to tight tolerances (typically ±0.01mm) for proper fit with mating components such as the high-pressure cylinder, cone ring, and check valve assemblies .
Features a 45-degree cone sealing surface that creates a metal-to-metal high-pressure seal when compressed against the high-pressure cylinder .
Internal cavities are precisely machined to accept inlet and outlet poppets, springs, seats, and seal components .
Designed for continuous operation under extreme pressure cycling without fatigue failure .
Modular design allows for replacement of internal wear components (seats, poppets, seals) without discarding the expensive body .
Pressure rated for ultra-high pressure service, with Pro models capable of withstanding up to 5,200 bar (approximately 75,000 PSI) .

Maintenance:

Fully depressurize the waterjet system and follow lockout/tagout procedures before removing the sealing head body .
During overhaul, remove the sealing head as an assembly with the high-pressure cylinder to minimize handling of critical sealing surfaces .
Inspect the 45-degree cone sealing surface for scratches, pitting, erosion, or damage marks; refinish with 600-grit sandpaper using radial motion if minor defects are present .
Inspect the inlet poppet valve sealing surface for pitting, scratches, or jetting erosion .
For sealing surface refinishing, use a flat piece of thick plate glass with 400-grit wet/dry sandpaper, rotating the head 10-15 degrees between strokes to maintain flatness .
Verify that the white plastic spacer ring is properly installed on the nose of the sealing head before reinstallation .
Replace the sealing head body if the cone surface or poppet valve seat surface is severely damaged beyond refinishing limits .
When reinstalling, coat jackbolts with molybdenum grease to ensure reliable torque and preload .
A fully assembled spare sealing head is recommended to reduce pump downtime during unplanned maintenance .
For systems with replaceable inlet seat technology (upgraded designs), replace the inexpensive inlet seat rather than discarding the body when damage occurs