Overview

HV42，Hydraulic Pilot Check Valve

Engineered for critical safety in hydraulic systems, the ULTPRE HV42 pilot-operated check valve delivers fail-safe load holding and precision flow control. Combining military-grade materials with innovative sealing, it ensures unmatched reliability in mobile machinery, energy infrastructure, and industrial automation.

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Model: HV42 | Product Line: Industrial Tools

Core Technology Highlights
✅ Triple-Port 70MPa Resilience
All functional ports (P, A, Pilot) withstand 70MPa continuous pressure—enabling deployment in main circuit security roles where conventional checks fail.

✅ High-Efficiency Ball Lock Design

  • Zero-Leak Holding: Hardened tool steel ball + precision ground seat eliminates internal leakage (<0.1 mL/min @ 70MPa).

  • Instant Response: Pilot ratio optimized for sub-5ms release even under 9-ton loads.

✅ Extreme Durability Construction

  • 42CrMo Alloy Body: QPQ surface treatment (nitriding + oxidation) delivers 800HV hardness + corrosion resistance exceeding 1,000hrs salt spray.

  • High-Temp Seals: Fluorocarbon (FKM) elements withstand -30°C to 150°C operation.

Performance Advantages
▶ Safety Critical Holding: Locks cylinders/actuators against drift during pump failure or hose rupture.
▶ Energy Efficient: 30% lower pilot pressure requirement vs. poppet-type designs.
▶ Compact Integration: Cartridge or inline mounting (ISO 7789 / SAE J1926 ports).

Dimensions

–File NameFile Type
液压附件图册中文
Hydraulic Accessories BrochureEnglish