Simmons 1" Silicon Bronze Check Valve 503SB Lead Free

The Simmons 503SB is a 1-inch lead-free silicon bronze check valve designed for potable water well systems. It allows water to flow in one direction only, preventing backflow that can cause pressure loss, pump damage, or water hammer in your system.

Specifications:

• Model: 503SB
• Size: 1 inch
• Connection: 1" FNPT inlet and outlet
• Material: Silicon bronze (lead-free, safe for drinking water)
• Application: Well pump discharge lines, potable water systems

Why use a check valve on a well pump? Without a check valve, water in the pipe above your pump drains back down into the well every time the pump shuts off. This causes the pump to work harder on each startup and can lead to pressure tank problems and premature pump wear. A check valve holds that water column in place. If the water column drains away so does the pressure in the house causing the pressure switch to turn back on and making the pump cycle on and off repeatedly.