81.52101.6269 Shacman Pressure Limiting Valve

The 81.52101.6269 Pressure Limiting Valve is a core hydraulic part for Shacman heavy trucks, used mainly in braking or fuel systems. It keeps system pressure safe—key to stopping overload and keeping key parts steady. It works reliably on highways (frequent braking), bumpy rural roads, and construction sites (heavy loads). It connects to the truck’s hydraulic pipeline, adjusting pressure automatically to fit different driving needs. This valve is made with precise machining and strict quality checks, so it handles heavy trucks’ tough conditions well. It resists pressure and corrosion, stays stable with long hydraulic oil contact, and adapts to extreme temps—from -35°C (cold winters) to 70°C (hot summers). No oil leaks, jamming, or lost pressure control.

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Description

Technical Parameters

The 81.52101.6269 Shacman Pressure Limiting Valve is a core hydraulic part for Shacman heavy trucks, used mainly in braking or fuel systems. It keeps system pressure safe-key to stopping overload and keeping key parts steady. It works reliably on highways (frequent braking), bumpy rural roads, and construction sites (heavy loads). It connects to the truck's hydraulic pipeline, adjusting pressure automatically to fit different driving needs.

This valve is made with precise machining and strict quality checks, so it handles heavy trucks' tough conditions well. It resists pressure and corrosion, stays stable with long hydraulic oil contact, and adapts to extreme temps-from -35°C (cold winters) to 70°C (hot summers). No oil leaks, jamming, or lost pressure control.

81521016269 Shacman Pressure limiting valve1

81521016269 Shacman Pressure limiting valve3

Key Specifications

Part No.: 81.52101.6269

Product Name: Shacman Pressure Limiting Valve

Position: Installed in the hydraulic pipeline of Shacman heavy truck's braking or fuel system; works with pressure sensors and control units to monitor and adjust pressure in real time.

Main Materials:
Valve body: High-strength forged steel (resists pressure, hard to deform)
Spool: Wear-resistant alloy steel (moves smoothly, long service life)

Pressure Performance:
Rated working pressure: 8-12 MPa (adjustable for different systems)
Pressure control accuracy: ±0.2 MPa (stable output, no big fluctuations)
Durability: Passed 100,000 pressure switching cycles and 5,000-hour continuous operation tests; meets Shacman's strict core component standards.

Safety Certification: Complies with GB/T 18411-2019 (national auto hydraulic braking standard) and Shacman's Q/SC1032-2021 internal standard.

advantages

Stable System Operation: Precisely controls max hydraulic pressure, preventing damage to pipelines and pumps from overpressure, and cutting brake/fuel system failures.

Long Service Life: Wear-resistant, corrosion-resistant materials plus high-temp/oil-resistant internal seals-lasts 3-5 years on average, reducing replacements.

Easy Installation: Matches Shacman's original setup; connects directly to hydraulic pipelines with standard fasteners, no bracket mods needed-installs in 15-25 minutes.

Strong Environmental Adaptability: Fully sealed to stop oil leaks and dust from getting in; works normally in rain or dusty construction sites.

FAQ

Q: How to tell if this 81.52101.6269 Shacman Pressure limiting valve needs replacing?

A: Watch for these signs: Abnormal pressure gauge readings (too high/low), weak braking or soft brake pedal, or oil leaks at valve connections. Replace it right away if any happen to stay safe.

Q: What maintenance does the 81.52101.6269 Shacman Pressure Limiting Valve need?

A: Do these regular checks: Tighten valve inlet/outlet joints monthly to prevent leaks; change system hydraulic oil every 60,000 km (per truck maintenance rules) to avoid performance issues; wipe the valve surface with a clean cloth every 3 months to remove dust and oil.

Q: What do customers say about this product?

A: Drivers and mechanics say: "After installing this valve, my truck's brake pressure stays steady-no weak braking even when loaded heavy." "Fits my Shacman perfectly, and it's still working great after 6 months."

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