Product Profile
Our BRL hand lever operated Hi-Cyclic® Valves provide a “human interface” capability for the directional control of air or oil in circuit design. Models are available in two and three position configurations with a wide range of spool functions. These high-quality valves feature a solid brass body that serves as a strong foundation for durability allowing them to stand up to even the most severe applications. Each spool is individually matched to a body, so Hi-Cyclic® Valves function with a precision fit that reduces internal leakage to a minimum. Because of our non-ferrous construction, we can handle air or hydraulic oils with pressures from 30” Hg vacuum to 250 PSI in air service, and up to 3000 PSI when used in hydraulic service. Models are available in 1/8”, 1/4”, 3/8” or 1/2” NPT as well as 7/16-20 and 9/16-18 SAE straight thread port sizes
Applications include:
- Manually controlled machine tool applications
- Operation of pneumatic and hydraulic double acting or single acting cylinders, rotary actuators, etc.
- Oilfield equipment
- Control valves for agricultural, construction or other types of on/off highway equipment
- Any pneumatic or hydraulic control circuit that needs the ability for “human interface” capability
Specifications
| Cv Factor |
0-1 |
| Actuator |
Manually Operated |
| Bubble Tight |
No |
| Valve Design |
Spool |
|
Model Numbers
|
BRL-2D 2 Position, Detented
BRL-3D 3 Position, Detented
BRL-2S 2 Position, Spring Return
BRL-3S 3 Position, Spring Center
|
| Type |
2, 3 or 4 Way Operation |
| Valve Design |
Lapped spool individually precision fit to body |
|
Actuator
|
Manual Hand Lever |
| Port Size |
1/8", 1/4", 3/8", 1/2" NPT and 7/16-20 or 9/16-18SAE |
| Body |
Brass Alloy 360 |
| Spool |
303 Stainless Steel |
|
Spool Functions
Diagram
|
Type I - Two position, positive lap spool used for conventional 4-way, 2-position applications. Can be used as a normally open or normally closed 3-way valve by simply plugging one cylinder port. Use for air and hydraulic service.
Type II - Three position, closed center spool with wide lands. All ports are blocked and isolated in the center position. Typically used for “position-and-hold” or “inching” circuits (will not hold position for long periods of time). Use for air and hydraulic service.
Type IV - Three position, cylinder ports blocked with cross drilled spool to allow pressure to bleed to tank port. Do not use in a “series” circuit and limit tank back pressure to 250 PSI maximum. Use for hydraulic service only.
Type V - Three position supply blocked with cylinder ports to tank (commonly referred to as exhaust open center in pneumatic terminology). Use for air and hydraulic service.
Type VII - Two position specially machined spool that allows the valve to be used as either a 2-way normally open or normally closed unit. Valves with this spool function are supplied with a “loose plug” that can be customer installed in outlet port “A” or “B” to yield the normally open or normally closed function that is desired. These models may also be used as a pressure selector with two different pressures being piped into the cylinder ports while using the inlet port as a common outlet. The third type of function is to be used as a pressure diverter with the inlet pressure being diverted to one of the two outlet ports. Use for hydraulic service only. Note: Tank port must be left open.
Type VIII - Three position, all ports open to tank. Unique function that can also be suitable for negative lap servo applications. Use for hydraulic service only.
|
| Standard Seals |
Buna-N |
| Optional Seals |
Viton®
|
| Flow |
Pneumatic: 1/8" and 1/4" NPT up to 1.00 Cv, 3/8" and 1/2"NPT up to 1.13 Cv
Hydraulic: up to 16 GPM (depending upon spool type chosen)
|
|
Temperature Range
|
-20° F to +160° F with standard Seals (Buna-N)
0º F to +160º F with optional seals (Viton®)
|
| Pressure Range |
Pneumatic service: vacuum through 250 PSI
Hydraulic service:
- 2000 PSI for 1/8", 1/4", 3/8" and 1/2" NPT models
- 3000 PSI for 7/16-20 or 9/16-18SAe models
|
