Based on the technical specifications for the **B-0121-R**, this model is a specific variant of a **Pre-Rinse Spray Valve and Hose Assembly** primarily used in commercial kitchens (manufactured by T&S Brass). While the unit itself is primarily **mechanical** (fluid dynamics and hardware), it is often part of an **Electronic Sensor Faucet System** or integrated into automated glass fillers and dishwasher stations. --- ### 🛠️ Technical Breakdown of Components | Component | Category | Function | | :--- | :--- | :--- | | **B-0107 Spray Valve** | Mechanical/Flow | The primary output nozzle with a 1.15 GPM flow rate. | | **Stainless Steel Hose** | Structural | 44-inch flexible conduit for water delivery. | | **Check Valves** | Fluid Control | Prevents cross-flow of hot/cold water (integral for electronic mixing). | | **Handle Retaining Ring** | Interface | Allows for "stay-on" functionality. | --- ### ⚡ Integration with Electronic Systems When the B-0121-R is used in a modern commercial environment, it often interacts with the following **electronic parts** (usually sold as part of the base faucet assembly, such as the **T&S ChekPoint** series): 1. **Solenoid Valve:** * In sensor-activated setups, an electromagnetic solenoid opens the water path when an IR sensor is triggered. * The B-0121-R acts as the manual override or the downstream delivery tool. 2. **Infrared (IR) Sensors:** * Used in "Hands-Free" configurations. The sensor sends a signal to a control module to release water to the pre-rinse unit. 3. **AC/DC Power Adapters:** * Plug-in transformers or battery packs (usually 6V) that power the electronic mixing valves connected to the spray assembly. --- ### 🔍 Key Specifications * **Flow Rate:** 1.15 GPM (Gallons Per Minute). * **Pressure Range:** 20 - 125 psi. * **Temperature Range:** 40°F - 140°F. * **Material:** Polished Chrome Plated Brass bodies and Stainless Steel hoses. --- ### ⚠️ Maintenance Note If you are experiencing issues with "electronics" on a B-0121-R setup, the fault usually lies in the **Solenoid Diaphragm** (which can get clogged with debris) or the **Sensor Eye** (which requires cleaning or recalibration), rather than the spray valve itself.