Sloan Royal 152 ESS Concealed Hardwired Sensor Water Closet Flushometer (1.28 GPF), 3/4 1.28 gpf Graphite, SKU 34516004

The Sloan ROYAL 152 ESS-1.28-GR is a sensor-operated diaphragm-type flush valve for a water closet. It delivers 1.28 gallons per flush, with a rear spud connection at a concealed body. It features a semi-red brass body and a permex synthetic rubber diaphragm seat.

Flush volumes from 1.28 gpf with CID technology for precise water efficiency. ADA-compliant handle prevents excess flushing. Vandal-resistant design for commercial durability.

Options on this configuration: 3/4. Sloan model number: ROYAL 152 ESS-1.28-GR. Sloan's own price-list description: ROYAL 152-1.28 2-10 3/4 ESS PVDGR.

Features

• 1.28 gpf, Graphite Finish, Fixture Connection Rear Spud, Single Flush, 2"-10.75" L Dimension, Electrical Override, Hardwired, Sensor-Operated
• Flush volumes start as low as 1.28 gpf/4.8 Lpf
• Water conservation is aided by the ADA-compliant, non-hold-open handle, which prevents toilet from exceeding intended flush volume
• Flush accuracy is controlled by CID™ technology, also enhancing water efficiency
• Integrity of the product is maintained with the vandal-resistant stop cap
• Durability is facilitated with high copper, low zinc brass castings for dezincification resistance
• Adjustable tailpiece
• PERMEX® Synthetic Rubber Diaphragm with Dual Filtered Fixed Bypass
• Valve body, Cover, Tailpiece and Control Stop shall be in compliance with ASTM Alloy Classification for Semi-Red Brass
• Valve shall be in compliance to the applicable sections of ASSE 1037

Common Questions

What fixture and flush volume is this valve for?

Per Sloan's own spec, it serves a water closet, 1.28 gallons per flush, a rear spud connection.

Is this exposed or concealed, and does it need a wall box?

Concealed -- the body sits behind the wall, with only the cover or trim visible.

How is it powered, and what happens in a power outage?

Hardwired -- no battery to replace, but an electrician must run power to it.

Is this ADA, WaterSense, or ASSE 1037 listed?

Yes -- Sloan lists it as ADA, WaterSense and ASSE-1037.

Specifications

• Type: Flushometer
• Inlet Size: 1"
• Outlet Size: 1-1/2"
• Body Material: Semi-Red Brass
• Diaphragm Material: PERMEX Synthetic Rubber Diaphragm
• Operation: Sensor
• MPN: ROYAL 152 ESS-1.28-GR
• Certifications: ADA, Buy American Act, BABA, IAPMO, WaterSense, UL, ASSE-1037
• Fixture Served: Water Closet
• Body Style: Concealed
• Spud Connection: Rear Spud
• Rough-In (in): 14.5"
• L Dimension (in): 2"-10-3/4"
• Volume per Flush (gal): 1.28
• Dual Flush: No
• Finish: Graphite
• Vandal Resistant: Yes
• Min Operating Pressure (PSI): 15
• Max Operating Pressure (PSI): 80
• Power Source: Hardwired AC
• Override Type: Electrical Override
• Sensing Range (in): 22"-42"