The Empire is our piston operated flush valve with strikingly sleek lines and all the features and benefits one expects from Delany Products. The Empire uses Delany’s signature Rubberflexer for the market’s only leak-free handle as well Delany’s Mashearator, the self-cleaning bypass designed for a piston cartridge. Delany’s Mashaerator is NOT a filtering system, but rather self-cleaning to prevent clogging and as a result it is excellent with hard water.

Available as (See Options & Specs below):

Standard Exposed
Exposed WCs E402 & E414
Exposed Urinals E451 & E452
Hydraulic Concealed
Hydro-Flush WC E1234
Hospital Application
Bedpan Diverter E455 & E461
Clinical Service Sink E418
Bedpans 977, 977-VB, 971-VB & 973-VB
Security Application
Hydraulic WC E1223 & E1229
Eastern Water Closet (EWC)
Exposed EWC E474 & E479

Additional information

TruStop Control Stop

Leak-free Rubberflex Handle

Main Valve Seat positioned below Supply In-let

Solid Brass Piston Cartridge

Nickel plated Cartridge

Mashaerator styled self-cleaning Piston

  • Model Number
  • Short Name
  • GPF

Replacement Parts

Empire Valves
Valve Variations

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Recessed Hex Nut:

The resessed hex nut provides beautiful clean lines, while at the same time making the valve nearly scratch proof on installation and/or maintenance.


Upper Chamber Regulator Screw:

Delany's signature Regulating Screw now with upper chamber regulation ability allows for maximum field adjustability and True-in-the-Field water conservation.


Upper Chamber:

The market's smallest upper chamber allows for the most consistent performance across the broadest range of water pressures.


SlipFit Joint Connection:

The SlipFit joint connection allows the Saber to fit any existing Slip Joint Stop in the field.


Replaceable Main Valve Seat:

The market's only replacable main valve seat allows for the most cost effective solution in the case of wire drawing or scoring, while also providing the most effective way for a contractor to totally flush the water lines of debris at a job's completion.


Vacuum Breaker:

All Delany vacuum breakers are made from a chloamine resistant material.


Diaphragm with Mashaerator:

Delany's Mashaerator is the market's only self-cleaning bypass. A stainless steel wire loop helps to deflect debris while also preventing hard water build-up in the bypass. Why wait for a filter to clog, when you can keep the bypass open and clean with the Mashaerator. All Delany diaphragms are also made from chloramine resistant material.


Rubberflex Handle Assembly:

Delany's Rubberflex Handle Assembly provides a leak free seal that lasts and is easy for owners to repair at a fraction of the cost of competitors' handles. It is also both ADA compliant as well as chloramine resistant.

Hover over a number around the flush valve to read information on that item.

“The Chesterfield County School System is the third largest public county school system in the state of Virginia. We have been using Delany Products (previously Coyne & Delany) flush valves for almost 60 years. As head of the county’s maintenance department for 35 of those 40 some years, I personally have a lot of experience with these products. the Delany flush valves are one of only two valves that we will allow in any of schools’ buildings.”

Plumbing & Roofing Team Leader,
Chesterfield County Public Schools, VA

Donald Field