In the Know


The Glossary is a list of industry-specific terms and acronyms commonly found in Symmons materials, such as websites, flyers, email, social media, and more.

Industry Terminology


The Americans with Disabilities Act, or ADA, is a civil rights law that prohibits discrimination against individuals with disabilities in all areas of public life, including jobs, schools, transportation, and all public and private places that are open to the general public. The purpose of the law is to make sure that people with disabilities have the same rights and opportunities as everyone else. (Source:

Regarding plumbing fixtures, ADA compliance is a standard, not a certification. Local municipalities generally dictate what they believe is considered ADA Compliant.

There are many factors to consider for ADA-compliant design. The major requirements of federal legislation are:

– One-hand operation that does not require grasping or rotation
– Must not exceed 5 pounds of force to operate
– Hand shower must contain a non-positive shutoff


Building Management System. A Building Management System is used to monitor the plumbing, heating, and air conditioning mechanical systems in larger institutional, multifamily, hospitality, or other large commercial buildings.

Centerset Faucet

A centerset faucet is a popular bathroom lavatory faucet that is typically constructed with the baseplate, spout, and handles as one unit. This type of faucet requires three holes in the mounting surface (countertop or sink).

The three holes are 4 inches apart at the widest point (4 inches from the center of the hot water supply to the center of the cold water supply) with a hole in the middle centered at 2 inches. This faucet configuration is easy to install and is very popular for nearly every installation situation.


A cross-connection in a plumbing water system is bad situation. Typically, a cross-connection is a situation where the drinking water supply (referred to as potable water) is allowed to mix with a non-potable supply. When this unsafe water enters the drinking water system through a cross-connection, there is a risk of injury or illness due to contaminants such as bacteria, chemicals, or other dangerous pollutants.

Another type of cross-connection occurs when hot water and cold water are unknowingly mixed within the plumbing system. For example, if a garden hose is connected to the hot and cold water lines with a Y connection, and the supplies are left turned on but the garden hose sprayer is off, water from one side will migrate into the line with the lower pressure.

Adherence to plumbing codes helps to reduce the chances of cross-connections, as codes require certain fittings and piping designs to prevent scenarios where cross-connections could happen. Examples of devices that prevent cross-connections are backflow preventers, check valves, and vacuum breakers.

Diverter Spout

A diverter spout is a tub spout that includes a manually activated gate to divert the water from the tub spout to the showerhead or another outlet, such as a hand shower.


An escutcheon is the plumbing term for a faceplate or trim ring for a shower valve, diverter valve, or any other type of decorative cover for a valve or piping trim ring.


GPM is an abbreviation for Gallons Per Minute. Also known as flow rate, GPM is a measurement of how many gallons of water flow from a fixture within a one-minute span.


LoRa (short for Long Range) is a spread spectrum modulation technique derived from chirp spread spectrum (CSS) technology. LoRa is a long range, low power wireless platform used as a wireless platform of Internet of Things (IoT).

While Wi-Fi is used to connect billions of personal and professional devices in homes, LoRaWAN is used for home security and access control, leak detection, and fuel tank monitoring, and many other applications.

LoRa® – LoRa® is a trademark of Semtech Corporation.


PEX piping or cross-linked polyethylene is a type of flexible piping that has been gaining popularity recently. As an alternative to copper and galvanized piping, PEX synthetic piping is a favorite among DIYers and in new construction projects.


A thermostatic mixing valve (TMV) is a valve that blends hot water with cold water to ensure constant, safe water temperatures to prevent scalding.

Volume Control

The Volume Control lever found on Symmons shower valves is a simple device that lets the user control the amount of water that flows from the valve to the showerhead, depending on their preference.

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