Valves, Adjusters, and Master Cylinders
Catalyst Powertrain is an authorized sales and service center for Carlisle brand brake and friction products.


Hydraulic Valves
APPLICATIONS: Articulated dump trucks, mining haulage trucks, mobile cranes, lift trucks, industrial equipment, and airport tugs.
1100 Series Values
The 1100 Series single and tandem circuit, modulating hydraulic control valves, are capable of modulating output pressures to a maximum of 3,500 psi (24,133 kPa).
FEATURES
- Flow capabilities exceed competitive designs
- Externally adjustable for precise pressure settings
- Rugged cast iron construction
- Automotive style pedal feedback
2100 Series Values
The valves are available in single circuit (2101) and parallel circuit (2102) configurations and are capable of modulating output pressures to a maximum of 3,500 psi (24,133 kPa).
FEATURES
- Spool sleeve design allows for easy serviceability
- Large supply and return ports provide high flow capabilities
- Externally adjustable to provide precise pressure settings
- Standard pilot apply (optional on the 2101 series)
- A number of pedal and switch options are available
Hydraulic Adjusters
Carlisle’s automatic adjusters are used for in-line adjustment of high-displacement hydraulic brakes, such as wet brakes. The adjuster functions to maintain running clearance at each brake application. In drum brake applications, the adjuster also compensates for clearance reduction due to thermal contraction of the brake.
FEATURES
- Rugged cast iron construction
- Available in single and dual circuit configurations
- Capacities range from 3.5 to 15 CU in
- Piston replacement kits available
Standard & Boosted Master Cylinders
APPLICATIONS:
FEATURES
- ISO 9001 certified
- Custom designs for specific applications
- Wide range of product sizes 3/8″ OD – 62″ OD up to 35′ in length
- Over 100 non-asbestos formulas
- Wide range of friction coefficients
- Full R&D testing facilities
Boosted Cylinders
Patented design for mineral oil single/twin pedal braking systems providing a boosted, progressive pedal feel.
FEATURES
- Generic design enables performance to be easily match to most agriculture and industrial applications
- Self-bleed design purges any ingressed air
- PTFE seal technology
- No reservoir required, uses supply oil from braking or clutch systems
Single Boosted Cylinders
FEATURES
- For up to 120+ HP machines
- Boost ratios of 2.65:1 to 6.2:1
- Master cylinder diameters from 25.4 to 35mm
- Supply pressure range 15 bar to 40 bar
MIDI Twin Boosted Cylinders
FEATURES
- For up to 130+ HP machines
- Boost ratios from 3:1 to 5:1
- Master cylinder diameters from 25.4 to 28.5mm
- Supply pressure range 15 bar to 25 bar
Compact Twin Boosted Cylinders
FEATURES
- For 120 – 350+ HP machines
- Boost ratios of 2:65:1 to 6.2:1
- Master cylinder diameters from 25.4 to 35mm
- Supply pressure range 15 bar to 40 bar
Master Cylinders
Carlisle is a major supplier to the majority of agricultural and construction machine manufacturers.
FEATURES
- Metric or Imperial ports
- Bore diameters from 15.6mm to 31.75mm
- Available for mineral oil or brake fluid
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