Royal 139 ESS WB 璐易 139 ESS WB is a sensor flush valve produced by Sloan. It is suitable for rear-entry squatting toilets. The product has low noise, concealed type, diaphragm structure and other features, and is equipped with a PERMEX™ synthetic rubber diaphragm with double filtration device and a quantitative bypass hole, a OPTIMA® EL-1500-L infrared adaptive sensor with indicator light, 3-second delay flushing function, Courtesy Flush™ backup manual flushing button, trigger solenoid valve, 9〞x 11.6〞(238mmx298mm) stainless steel panel, 1〞 Watts pipe standard handwheel adjustable check valve, length adjustable connecting pipe, bend head with two active interfaces, high copper content low zinc content anti-dezincification copper alloy, CID™ technology, PERMEX™ synthetic rubber diaphragm filtering structure, angle valve and vacuum check valve.
The Royal 139 ESS WB is a concealed‑type sensor flush valve designed for wall‑mounted installation with a stainless‑steel panel. It offers selectable flush volumes of 6.0 L, 9 L, or 13 L and features low‑noise operation, a membrane structure, dual‑filter system, and an infrared adaptive sensor.
Key features include a 3‑second delay before flushing, a 2‑inch (51 mm) wall opening, a 9"×11.6" (238 mm×298 mm) stainless‑steel panel, and compliance with ASTM, ASSE, ANSI/ASME, ADA, and other standards. The valve incorporates a PERMEXTY synthetic rubber membrane, an OPTIMAS EL‑1500‑L infrared sensor, and a trigger‑type solenoid for precise, water‑saving flush control. This manual is written in Chinese.
| Flush volume | 6.0 L, 9 L, 13 L |
|---|---|
| Stainless steel panel size | 9"×11.6" (238 mm×298 mm) |
| Flush delay | 3 seconds |
| Sensor model | OPTIMAS EL‑1500‑L infrared adaptive sensor |
| Transformer | EL‑342 CN, 240 VAC/24 VAC, 50 VA |
The valve can be configured for 6.0 L, 9 L, or 13 L flush volumes.
The flush delay is set to 3 seconds.
It uses an OPTIMAS EL‑1500‑L infrared adaptive sensor.