Geberit Mapress Stainless Steel Female Tee Threaded Branch 15mm to 108mm

A threaded tapping on a stainless main is quickest with the Geberit Mapress 316 Stainless Steel Female Tee Threaded Branch. The run ends are press sockets, and the branch is a female thread.

Uses for the Geberit Mapress 316 Stainless Steel Female Tee Threaded Branch

The branch takes gauges, sensors, air vents, drain cocks, test points and small male threaded valves. On larger mains, a 2″ branch can feed a threaded valve or a bigger take off. Using a threaded tee saves a separate tee and adaptor, which cuts cost and joints.

• 15mm x 1/2″, 22mm x 1/2″ and 22mm x 3/4″
• 28mm with 1/2″, 3/4″ or 1″; 35mm and 42mm with 1/2″ or 3/4″
• 54mm with 1/2″, 3/4″ or 2″
• 76mm, 89mm and 108mm, each with 3/4″ or 2″

The millimetre figure is the run size and the inch figure is the branch thread. Fit the threaded item before pressing where you can, using a sealant suited to 316 stainless steel. That keeps spanner force away from the pressed seals. Turn the tee so the branch faces the right way, then press both run ends after preparing and marking the pipe. Remember a vent or gauge needs to be reachable later, so think about where it points. The male branch version is also in our Geberit Mapress 316 stainless steel range.

Threaded tees from our Glasgow trade counter

Pick these up from Plumb Parts at 555 South Street, Glasgow G14 0QX, Mon-Fri 8am-5pm and Sat-Sun 8am-1pm. Online ordering suits too.

Specification

• Brand: Geberit
• Range: Mapress 316 Stainless Steel
• Maker code: 31334 (89mm x 2″), 31336 (108mm x 3/4″), 31339 (108mm x 2″)
• Material: CrNiMo 316 stainless steel 1.4401 (316)
• Connection: Two Press Fit sockets on the run (black CIIR seal rings), female thread on the branch
• Sizes: 15mm x 1/2″, 22mm x 1/2″, 22mm x 3/4″, 28mm x 1/2″, 28mm x 3/4″, 28mm x 1″, 35mm x 1/2″, 35mm x 3/4″, 42mm x 1/2″, 42mm x 3/4″, 54mm x 1/2″, 54mm x 3/4″, 54mm x 2″, 76mm x 3/4″, 76mm x 2″, 89mm x 3/4″, 89mm x 2″, 108mm x 3/4″ and 108mm x 2″
• Max pressure: 16 bar for drinking water and heating water
• Max temperature: 100°C for drinking water and heating water without antifreeze
• Suitable for: Hot and cold drinking water, heating and cooling circuits, on Mapress 316 Stainless Steel system pipe

Common Questions

How do I make a joint with the Mapress 316 stainless steel female tee? Push the stainless pipe in to the full insertion depth and press it with the correct press tool. The blue pressing indicator shows the joint has been pressed, and an unpressed joint leaks so it’s spotted when you pressure test.

How do press fittings like this Mapress stainless tee work? Each press end is squeezed onto the pipe with a press tool to make a permanent seal, with the female threaded branch taking a male threaded fitting. A protective plug keeps grit out of the fitting until you use it.

What can the Mapress 316 stainless steel female tee be used on? It’s listed for hot and cold drinking water and heating and cooling water, up to 16 bar and 0°C to 100°C on drinking water.

How are the sizes on the stainless female tee written? It’s the pipe size followed by the thread on the branch, for example 22mm x 3/4 inch. Some list the run twice, like 22mm x 22mm x 3/4 inch, and the range goes up to 108mm with a 2 inch thread.

What is the Mapress stainless tee made from? It’s 1.4401 316 stainless steel, a chrome nickel grade with molybdenum added. The molybdenum is what gives it its resistance to corrosion.

Can I use the Mapress stainless female tee on gas? No, this one is for drinking water and heating and cooling water. Gas needs fittings from a gas-approved range, fitted by a Gas Safe registered engineer.

Datasheets

• Geberit Mapress 316 Stainless Steel Application Overview (Liquid Media) (PDF)