Conrader RCB-HU Pilot Valve with Hand Unloader - 1/4" FNPT Inlet, Select PSI
Conrader RCB-HU Pilot Valve with Hand Unloader - 1/4" FNPT Inlet, Select PSI
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Product Description
Conrader RCB-HU Pilot Valve with Manual Hand Unloader
The Conrader RCB-HU uses receiver pressure to send a pneumatic control signal to compressor unloaders, throttle controls or other compatible devices. This model has a 1/4" FNPT inlet and a 1/8" FNPT pilot outlet. The hand lever provides manual unloading control.
Verified OEM Replacements
✓ Verified Replacement For: Champion VP1089041, P09329A and PO9329A — select 140–175 PSI.
These references apply to the 140–175 PSI option with the matching 1/4" female NPT inlet and 1/8" female NPT pilot outlet. Confirm the original valve’s port layout and mounting before ordering.
Specifications
| Manufacturer | Conrader |
|---|---|
| Model | RCB-HU |
| Valve function | Pneumatic pilot control |
| Manual control | Hand unloader lever |
| Inlet | 1/4" FNPT |
| Pilot outlet | 1/8" FNPT |
| Body material | Brass |
| Pressure setting | Select the required cut-in / cut-out pair |
Available Pressure Settings
The lower number is the load (cut-in) setting. The higher number is the unload (cut-out) setting. At cut-out, the pilot opens to pressurize the downstream control line; at cut-in, it closes and releases that control signal.
| 90-100 PSI | Loads at 90 PSI; unloads at 100 PSI |
|---|---|
| 95-115 PSI | Loads at 95 PSI; unloads at 115 PSI |
| 95-125 PSI | Loads at 95 PSI; unloads at 125 PSI |
| 100-120 PSI | Loads at 100 PSI; unloads at 120 PSI |
| 105-125 PSI | Loads at 105 PSI; unloads at 125 PSI |
| 110-125 PSI | Loads at 110 PSI; unloads at 125 PSI |
| 115-130 PSI | Loads at 115 PSI; unloads at 130 PSI |
| 120-140 PSI | Loads at 120 PSI; unloads at 140 PSI |
| 115-150 PSI | Loads at 115 PSI; unloads at 150 PSI |
| 125-150 PSI | Loads at 125 PSI; unloads at 150 PSI |
| 140-160 PSI | Loads at 140 PSI; unloads at 160 PSI |
| 140-175 PSI | Loads at 140 PSI; unloads at 175 PSI |
Application and Selection
Match the original inlet thread, pilot outlet connection, mounting and both pressure settings. This valve controls another device through a pilot signal; it is not a direct replacement for a discharge-unloader/check-valve combination or a certified safety relief valve. Keep the compressor’s separate pressure-protection devices in place.
