10078699-HP-Anti-Vibration-Gland-25-Water-Jet-Parts.950.3-1

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Product Name: HP Anti-Vibration Gland, 1/4″ – Part No. 10078699

Description:
This component is a specialized high-pressure gland nut, engineered for use with 1/4" ultra-high pressure (UHP) stainless steel tubing in waterjet cutting systems . Manufactured from high-strength, corrosion-resistant stainless steel, its primary function is to secure the HP tubing by tightening against a mating cone adapter and anti-vibration collar, creating a reliable metal-to-metal seal capable of withstanding extreme pressure spikes .

The "Anti-Vibration" designation indicates a design feature, often including a longer thread or specific geometry, that helps dampen mechanical vibrations and prevent the threaded connection from loosening under the intense pressure pulsations of the intensifier pump. This specific part is an OEM equivalent replacement, cross-referenced with KMT numbers 10078699, 49864556, 10014684, and Flow equivalent 044347-1 . The product weight is approximately 0.044 - 0.068 lbs .

Applications:

Securing 1/4" high-pressure water lines to on/off valves, check valves, cutting heads, and manifolds.
Used as part of the anti-vibration hardware on intensifier pumps to prevent loosening from pressure pulsations.
Required for installing HP tubing in both 60KSI (4,137 bar) and 90KSI (6,200 bar) systems.
Compatible with KMT, Flow, OMAX, BFT, WSI, and other standard waterjet systems.

Features:

Anti-Vibration Design: Engineered to dampen mechanical vibration and prevent threaded connections from loosening under continuous high-pressure pulses .
High-Strength Stainless Steel Construction: Provides excellent corrosion resistance and structural integrity under extreme pressure cycling.
1/4" Nominal Size: Standard size for flexible high-pressure waterjet plumbing and motion axes.
Precision-Machined Threads: Ensures smooth engagement with HP fittings and accurate torque application for a reliable metal-to-metal seal.
Critical Connection Component: Essential for maintaining leak-free connections in high-vibration environments.
Direct OEM Replacement: Interchangeable with KMT 10078699, KMT 49864556, KMT 10014684, and Flow 044347-1 .
Weight: Approximately 0.044 lbs (0.019 kg) .

Maintenance:

Failure Diagnosis (When to Replace):

External Water Leakage: Visible water weeping from the connection indicates a failed seal or loose/improperly torqued gland.
Thread Damage: Stripped, galled, or corroded threads prevent proper tightening and will cause high-pressure leaks.
Visible Cracks or Deformation: Any cracking or distortion of the stainless steel nut warrants immediate replacement.
Difficult Assembly: If the gland feels gritty or binds during threading, threads may be damaged.
Vibration Loosening: If the connection becomes loose during operation due to vibration, inspect threads for wear and replace if necessary.

Inspection and Replacement Guidelines:

Full Depressurization (Critical): Before any maintenance, place the main electrical disconnect in the OFF position, bleed down all high-pressure lines, and follow lockout/tagout procedures. Never service a pressurized HP line.
Inspect Components: Before assembly, thoroughly check threads for damage. When a high-pressure joint has been disturbed, it is standard practice to replace the gland, cone, and collar as a set if they show signs of wear .
Lubrication: Apply a thin, even layer of high-pressure anti-seize compound (e.g., "Silver Grade" or "Blue Goop") to the threads only. Do not apply lubricant to cone sealing surfaces.
Two-Wrench Method (Critical): Always use two appropriately sized wrenches—one to counter-hold the fitting body and one to tighten the gland nut—to prevent twisting stress on the assembly.
Torque Compliance (Critical): Tighten the gland nut to the specific torque value listed in the equipment service manual for 1/4" HP connections. Use a calibrated torque wrench. Over-tightening can damage the cone seat; under-tightening will cause leaks.
Replace if Damaged: Replace the gland immediately if threads are damaged, cracks are visible, the nut shows signs of deformation, or persistent leakage occurs despite correct installation.