Cab Valve – 52520 Series

  • Shear-Seal® technology provides superior performance and durability
  • High reliability and performance
  • Precise dead band optimizes ride height control
  • Proportional flow reduces vehicle air consumption
  • Standard push-to-connect fittings ease installation
  • Compact size and flexible design fits any application
  • Flexible design can be customized to meet design and application
  • Easy installation
  • Fast & smooth response provides driver comfort and minimizes air consumption

The 52520 Air Suspension Valve utilizes Barksdale’s patented Shear-Seal® technology to accurately control suspension height in commercial truck cabin applications. Shear-Seal® has become the industry leader through superior performance and long life, even under the most demanding conditions. The Shear-Seal® advantage combined with enclosed housing enables high dirt/contamination resistance.

Barksdale height control valves feature proportional response for minimal air consumption near deadband and better driver comfort. At the same time, new stem-less cartridge fittings and tamper-resistant screws increase robustness in the field. The Barksdale valve’s compact design and two sets of mounting holes (M6 & M8) allow easy direct replacement and installation in current cab air suspension systems.


General Specifications*

Operating Media: Air
Seal Type: Shear-Seal®
130 PSI (9 bar) Maximum
-40ºF to +185ºF (-40ºC to +85ºC)
Flow Curve: Proportional response
Maximum Flow Rate: Standard flow: 120 L/Min (4.2 cfm) Maximum flow: 140L/min (4.94 cfm)
*Contact factory for higher flow options
Port Size: 1/4” Push in tube*
6mm Push in tube
*DOT approved
Mounting Through
M6 38.1mm (1.5in) M8 46.4mm (1.83in)
Linkage Mounting
Hole :
0.25” (6.3 mm) or 0.38” (9.5 mm)
Maximum Handle
+/- 75º For fill or exhaust
Materials Of
Body & Housing:
Engineered plastics
Arm: Zinc plated steel
Internal Elements: Stainless steel and hard anodized aluminum
Seals: HNBR
Weight (typical): 0.4 lb (175g)


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