PRESSURE VALVE UNION (NEW CARTRIDGE STYLE)

HJ-5201106

BFT PART NUMBER: 5201106 (REPLACES CP-22-0689)

STM PART NUMBER: HD400168

FOR PRICING, PLEASE EMAIL PARTS@HJWATERJET.COM

OR CALL US AT 706-529-3620

Pressure Valve Union (New Carttridge Style) | HJ-5201106


The HJ WATERJET Pressure Valve Union (New Style) – HJ-5201106 is a precision-engineered high-pressure pressure-side union assembly designed for BFT SERVOTRON and Semperdur  waterjet pump systems, delivering superior sealing integrity, reliable cartridge retention, and stable ultra-high-pressure performance in demanding industrial waterjet applications.

The HJ WATERJET Pressure Valve Union functions as the primary connection and retention housing for the pressure valve cartridge assembly, securing the cartridge within the high-pressure fluid end while maintaining accurate alignment, pressure containment, and efficient water flow during intensifier operation.

Manufactured from premium hardened stainless steel with a new upgraded and improved durable design, the HJ-5201106 pressure valve union is built to withstand:

  • Extreme ultra-high-pressure operation
  • Continuous hydraulic pressure cycling
  • Abrasive contamination
  • High-frequency intensifier cycling
  • Industrial vibration and fatigue loading
  • Corrosive and harsh operating environments

The upgraded HJ WATERJET Pressure Valve Union design improves sealing performance, structural durability, and long-term operational reliability, helping reduce internal leakage, maintain stable pressure output, and extend maintenance intervals in high-production waterjet systems.

 The HJ-5201106 Pressure Valve Union performs several critical functions within the ultra-high-pressure pump assembly:

  • Secures the pressure valve cartridge assembly
  • Maintains precise alignment of internal valve components
  • Supports pressure-side sealing integrity
  • Helps regulate high-pressure water flow
  • Prevents leakage and pressure instability
  • Maintains consistent intensifier operation

This component is essential for:

  • Stable ultra-high-pressure performance
  • Efficient pump operation
  • Reliable pressure regulation
  • Consistent waterjet cutting quality

Compatible with:

  • BFT-style SERVOTRON systems
  • BFT-style Semperdur XL pumps
  • Ultra-high-pressure BFT-style intensifier pumps
  • Industrial abrasive waterjet cutting systems

Frequently associated with:

  • HJ-1215867 – Pressure Valve Cartridge Complete
  • HJ-1215869 – Pressure Cartridge
  • HJ-5201107 – Suction Valve Union (New Style)
  • HJ-1215868 – Suction Valve Cartridge Complete
  • HJ-4100256 – Safety Bolt
  • HJ-5102181 – Valve Stem
  • HJ-4100175 – O-Ring HP Seal

** HJ WATERJET IS IN NO WAY AFFILIATED WITH GMA, EBBCO, KENNAMETAL, KMT, FLOW, BFT, H2O, OMAX, ACCUSTREAM, HYPERTHERM OR TECHNI. PART NUMBERS ARE FOR CONVENIENCE ONLY.

© 2026 HJ WATERJET. ALL RIGHTS RESERVED.

EMAIL US

Our website uses cookies. By continuing to surf on the page, you agree to us using cookies. Click here for more information.

I understand