Are you looking for a well pressure switch, a pitless adapter, foot valves or other well parts? We've got them! PlumbingSupply.com
® is a great source for hard-to-find well parts and thousands of other plumbing-related
products. Plus you'll find that we offer the best selection on the Net and have since 1995.

standard pressure switch
Standard Well Pressure Switch

pressure switch: low cut-off
Well switch with low cut-off

heavy duty pressure switch
Heavy Duty Well Pressure Switch

pulsation damper
| Air Ejector Controls For Deep Well Water Systems releases air only, submersible pumps only, 1-1/4"NPT |
 Click here to view the HARVARD® air ejector |
Pressure Release Valve Adjustment:
- The HARVARD® plastic deep well air release is factory set at 25 psi
- Maximum release valve pressure setting is 40 psi
- Minimum release valve pressure setting is 0 psi
- Pressure setting is increased by turning the adjusting screw clockwise, and lowered by turning the adjusting screw counterclockwise
- One full rotation of the adjusting screw changes the setting by approximately 5 psi
|
|
How the HARVARD® release valve works:
- Excessive air in the tank will continue to lower the water level in the tank to the extent of discharging air into the service line
- As the water level is lowered, the deep well air release float is also lowered, opening the release valve
- This allows the excess air to bleed out of the tank until the release valve setting is reached (Factory set at 25 psi)
- As the pressure in the tank lowers to the cut-in setting of the pressure switch (usually 20 psi), the pump starts and forces water and air into the tank until the pressure has reached the cut-out setting of the pressure switch (usually 40 psi)
- As the water level rises, it raises the float which closes the release valve before the water level reaches the valve; a process that is repeated as the pump cycles
|

shown: Brady volume control
Air Volume Controls
adds air only, non-repairable
shallow non-submersible pumps only

air charger

cable guard

long brass shown
Tank Manifold CrossesT

Pitless Adapter (lead free)

plastic air bleeder
Air Bleeder

shown: metal well seal
Well Seals

wire splicers
Wire Splicer

snifter valve
Snifter Valve
Lead Free