Product ID: 10106417 – Sealing Head Body / Check Valve Body

Description:
This component is a sealing head body, also known as a check valve body or止回阀体, designed for high-pressure waterjet intensifier pumps . It is a precision-machined stainless steel housing that serves as the central structural component of the sealing head assembly (check valve assembly) located at the high-pressure end of the intensifier pump . The body contains internal flow passages and precision sealing surfaces that house the inlet and outlet poppet valves, springs, seats, and high-pressure seals, controlling the one-way flow of water into and out of the high-pressure cylinder .

This component is manufactured by KMT Waterjet Systems (branded as AccuStream) and is rated for ultra-high pressure operation . Alternative or cross-reference part numbers include 1-11317, 5000013, 103443, SL10106417, and 49834039 . The component weighs approximately 1.25 kg and is constructed from stainless steel . The part has dimensional specifications of approximately D58.51 × d17.2 × 32.6 mm .

Applications:

• Used as the primary check valve housing at the high-pressure end of waterjet intensifier pumps 

• Installed between the high-pressure cylinder and the high-pressure outlet line to direct pressurized water toward the cutting head 

• Houses the inlet and outlet poppet valves and associated sealing components that control unidirectional water flow during the intake and compression strokes 

• Suitable for ultra-high pressure waterjet systems operating at 60,000 PSI (approximately 4,137 bar) 

• Compatible with KMT SL-IV series (including 50 HP), SL-V, SL-VI, Classic series, and OEM intensifier assemblies 

Features:

• High-Strength Stainless Steel Construction: Provides excellent corrosion resistance and durability in harsh waterjet environments 

• Precision-Machined Internal Passages: CNC-machined to exact tolerances for proper fit with poppet valves, springs, seats, and seal components 

• High-Pressure Rating: Engineered for continuous operation at 60,000 PSI (4,137 bar) 

• Dual Check Valve Design: Accommodates both inlet (low-pressure) and outlet (high-pressure) poppet valves in a single integrated housing 

• Critical Internal Components: The body contains a long plug or堵塞 that is critical for pressure stability. Unstable or low pressure is often caused by plug issues, specifically wear or out-of-round condition at the low-pressure inlet 

• OEM Compatibility: Direct replacement part for KMT waterjet systems 

• Weight: Approximately 1.25 kg 

Maintenance:

• Inspection (Critical): Inspect the internal bore and plug seating surfaces for wear, pitting, erosion, or out-of-round condition. The plug is particularly important—unstable pressure or no pressure is often caused by plug problems. The low-pressure inlet of the plug is key; if it is not round, or has scratches and wear, it will cause insufficient pressure 

• Plug Component Inspection: The plug head assembly includes multiple components: plug head, low-pressure valve gasket, plug head cover, plug screw, high-pressure valve gasket, high-pressure valve core, spring, one-way valve, and plug O-ring. All these components should be inspected during overhaul 

• Sealing Surface Check: Inspect all sealing surfaces and O-ring grooves for damage, wear, or corrosion. Pay particular attention to the areas where the valve seats contact the body

• Flow Passage Cleaning: Thoroughly clean internal flow passages using low-pressure water and a soft brush. Remove all debris, mineral deposits, or old seal residue that could restrict flow or damage downstream components

• Torque Compliance: When reinstalling, tighten all check valve components (gland nut, plug, etc.) to the specific torque values listed in the equipment service manual

• Thread Lubrication: Apply manufacturer-recommended high-pressure thread lubricant or anti-seize compound to all threads during reassembly to prevent galling and ensure accurate torque application

• Full Depressurization: Always fully depressurize both the hydraulic system and the high-pressure water system before removing or servicing the sealing head body. Follow lockout/tagout procedures

• Replacement Criteria: Replace the sealing head body if cracks, severe internal erosion, thread damage, or sealing surface damage is detected. Do not attempt to repair a cracked or severely damaged body

• Repair Kits: Service and repair of the sealing head body typically requires check valve repair kits (e.g., containing O-rings, springs, valve disc, screw, valve cover, valve pad, and valve core)