Cab Valve – 55521 Series

  • Shear-Seal® technology provides superior peformance and durability
  • Precise dead band optimizes ride height control
  • Proportional flow reduces vehicle air consumption
  • Standard push-to-connect fittings ease installation
  • 120 or 350 I/min (4.2 to 12.4 CFM) peak flow balances suspension response and air use
  • Single or Dual outlet ports simplify hose routings
  • Compact size and flexible design fits any application

The 55521 Air Suspension Valve utilizes Barksdale's patented Shear-Seal® technology to accurately control suspension height in commercial and recreational vehicle applications. Shear-Seal® has become the industry leader through superior performance and long life, even under the most demanding conditions. Barksdale height control valves feature proportional response and are available in both low flow and high flow configurations. These features combine to minimize air consumption without the use of inaccurate and failure prone time delay elements found in competing products. Available push-to-connect fi ttings and single or dual bag ports allow for easy and fast installation. The Barksdale valve's compact design and Barksdale's ability to customize the product make it a perfect fit on any suspension.


General Specifications*

Operating Media Air
Seal Type Shear-Seal®
Operating Pressure 130 PSI (9 bar) Maximum
Operating Temperature -40ºF to +150ºF (-40ºC to +65ºC)
Flow Curve Proportional response
Maximum Flow Rate Low fl ow: 120 L/Min (4.2 cfm)
Standard fl ow: 350 L/Min (12.4 cfm)
Port Size 1/4” Push in tube*
6mm Push in tube*
*DOT approved
Delivery Ports (Bag ports) Single or dual delivery ports
Mounting Studs 1/4-20 UNF or M6
Linkage Mounting Hole 0.25” (6.3 mm) or 0.38” (9.5 mm)
Maximum Handle Movement +/- 75º For fill or exhaust
Materials Of Construction Body & Housing:
Engineered plastics
Arm: Zinc plated steel
Internal Elements: Stainless steel and hard anodized aluminum
Seals: Buna-N
Weight (typical) 0.5 lb (227g)


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