HR Female Threaded Tee ST – Female BSP x Female x Female Irrigation Tee for Garden & Drip Systems

HR Female Threaded Tee for Joining Three Male Threaded Fittings

The HR Female Tee ST is a black plastic irrigation tee with a female BSP thread on all three ports. It joins three male threaded fittings, such as male adaptors, nipples, risers, taps or valves, at a T-junction, letting you split a threaded line into two or add a threaded branch in garden, landscape and drip irrigation systems.

Splitting a Threaded Line in Two

Threaded fittings are common around taps, valves, filters and pressure reducers, where joints may need to be undone later. A female threaded tee sits in that part of the system and splits the flow, for example sending water from one tap to two drip zones, or feeding both a hose tap and an irrigation line from one outlet. With all three ends threaded, nothing needs to be glued or crimped, and the fittings can be unscrewed if the layout changes.

Adding a Threaded Branch to a Poly Line

To add the tee into a poly irrigation line, fit a male threaded adaptor to each cut end of the poly pipe and screw them into the two run ports of the tee. The third port then takes whatever you need on the branch: a riser for a sprinkler, an in-line tap, a ball valve to isolate a new zone, or another male adaptor to carry a second poly line off in a new direction.

Black Plastic for Outdoor Irrigation

The black plastic body is lightweight, will not rust like metal fittings and is UV stabilised for outdoor use. Its dark colour also blocks light, which helps limit algae inside the fitting. The hex shoulders on each port give a spanner something to grip, so you can hold the tee steady while tightening fittings into it.

Key Features and Benefits

• Female BSP thread on all three ports
• Joins male adaptors, nipples, risers, taps and valves
• Splits a threaded line or adds a threaded branch
• Hex shoulders for holding the tee while tightening
• Black plastic body that will not rust
• UV stabilised for outdoor use
• Suits garden, landscape, greenhouse and drip irrigation

Product Details

• Brand: HR
• Code: ST
• Type: Equal tee (female x female x female)
• Connection: Female BSP thread on all three ports
• Material: Black plastic, UV stabilised
• Use: Garden and drip irrigation

Building a Sealed Threaded Tee

Wrap every male thread going into the tee with thread tape, winding it in the same direction the thread tightens so it does not peel back. Screw each fitting in by hand, then hold the tee steady with a spanner on its hex while giving each fitting a small extra turn. Plastic female threads can split if they are over-tightened or if tapered metal fittings are forced in, so go firm rather than tight. Make sure all three ports use the same thread size and type as your fittings. Support the tee on a stake or bracket if heavy valves or risers are attached, then turn the water on and check each joint.

Frequently Asked Questions

What is a female threaded tee used for in irrigation?
It joins three male threaded fittings at a T-junction, splitting one threaded line into two or adding a threaded branch. Common uses include splitting a tap outlet into two zones and adding valves, risers or taps along a line.

How do you add a threaded branch to an irrigation line?
Cut the poly line, fit a male threaded adaptor to each cut end and screw them into the two run ports of the tee. The third port takes the threaded branch, such as a riser, tap, valve or another male adaptor.

Which tee fitting is used for a female BSP irrigation connection?
If your fittings all have male BSP threads, use a female threaded tee like this one. If you need the tee to screw into a female BSP outlet, choose a tee with a male threaded port instead.

Do I need thread tape?
Yes. Wrap each male thread with thread tape before screwing it into the tee to help the joints seal and make them easier to undo later.

Can I connect poly pipe directly to it?
Not directly. Fit a male threaded poly adaptor to the pipe first, then screw the adaptor into the tee.

Where can I buy a female BSP tee in Bonnyrigg?
The HR Female Tee ST is available from BPG Supplies, with local pickup from our store in Bonnyrigg in Sydney's south-west and delivery across Australia.