Prior to the invention of the trap primer, people would periodically pour water into floor drains to maintain the liquid seal. A trap primer is a device that causes a small amount of water to drain to the trap via …

Aug 29, 2022 · It's important to know what is a trap and what is a trap primer. Working together, these plumbing devices keep sewer gas out of your home.

Trap primers are used in plumbing systems to prevent floor drain traps from losing their water seal by evaporation. Maintaining the water seal will prevent the backflow of sewer gas into the buildings or …

Trap Primers Pressure Drop Activated Automatic Trap Primer Valves - 1/2" Inlet/Outlet - Pressure Drop Type Part #: PR-500 Description: PRIME-RITE, Brass

Shop Trap Primers at Ferguson. Find expert-curated Trap Primers products from the #1 US plumbing supplier and top distributor of HVAC, waterworks, and MRO products.

Aug 27, 2025 · What is a Trap Primer for Floor Drains? At its core, a trap primer is a plumbing device designed to maintain the water seal in drain traps automatically. If you don’t already know, every …

A trap primer is a flow control valve that adds water to a P-trap to maintain a water seal, preventing sewer gases from entering a building. There are two types of trap primers in our Fluid Controls …

A trap primer (or trap seal primer) is a plumbing device or valve that adds water to traps.

Trap Primers are designed primarily to supply water to floor drain traps which have infrequent use and in which water evaporation would allow sewer gas to enter the premises. This method of priming traps …

Need a little help? This category contains a variety of trap primers.