Five-Way Tee
1-inch brass five-way fittings that connect the pressure tank, pump, pressure switch, pressure gauge, and plumbing line at a single point.
Products (4)
- Forza FRZ-BV Brass 5-Way Booster Pump Fitting – $13.00
- Hidrotank 5-Way Fitting, 1", 90 mm Height – $16.20
- Kentaş 1" Booster Pump 5-Way Connection – Request a quote
- Nortek 1" Five-Way Fitting (Booster Pump) – $12.60
Brands: Forza · Hidrotank · Kentaş · Nortek
What is a five-way fitting?
A five-way fitting is a special fitting used in booster pump systems that is installed at the mouth of the expansion vessel and brings five different connections together at a single point. In addition to the tank connection, the line from the pump, the line going to the plumbing, the pressure switch, and the pressure gauge are all connected through this fitting. This allows the booster pump installation to be completed with fewer parts, in a more compact form, and with fewer potential leak points.
Connection ports
- Tank inlet: Connects to the 1-inch opening of the expansion vessel.
- Pump outlet: Pressurized water from the pump enters through this port.
- Plumbing outlet: The main line going to the building connects through this port.
- Pressure switch inlet: Typically 1/4-inch size.
- Pressure gauge inlet: 1/4-inch connection for monitoring system pressure.
Since dimensions may vary between models, checking the measurements and the height of the fitting in the product description makes it easier to confirm compatibility with your existing tank and pump.
Installation recommendations
The five-way fitting should be installed vertically at the tank opening, and any unused ports should be closed with appropriate plugs. Placing a check valve between the pump and the five-way fitting, and a ball valve on the plumbing outlet, makes maintenance easier. Use PTFE tape on threaded connections and avoid overtightening the brass body. A flex hose can be used between the pump and the five-way fitting to prevent vibration from being transmitted to the tank and plumbing.
Material
The five-way fittings in this category have brass bodies; brass is widely preferred for booster pump connections due to its corrosion resistance and ease of machining. Fittings intended for use in drinking water systems must be suitable for that application.
Frequently asked questions
Does a five-way fitting fit every tank?
It is compatible with pressure tanks that have a 1-inch tank opening; a reducer may be required for different sizes.
What size are the pressure gauge and switch inlets?
1/4-inch threaded inlets are typically used; check the product details to confirm.
What should I do with unused ports?
They must be closed with plugs of the appropriate size and sealed to prevent leaks.
Can I use separate parts instead of a five-way fitting?
It is possible; however, an installation built with separate tees and nipples means more parts and more potential leak points.
What else is needed for a booster pump installation?
A pressure switch, pressure gauge, and check valve are the essential components.
Why does the five-way fitting leak?
Insufficient sealing material on the threads, a crack in an overtightened brass body, or plugs that are not fully seated can cause leaks. Check each connection in turn to find the source.