Geberit Mapress Stainless Steel Adaptor Male Thread and Plain End 15mm to 54mm

Close coupled threaded connections are what the Geberit Mapress 316 Stainless Steel Adaptor Male Thread and Plain End is for. Its plain spigot pushes into the socket of another Mapress fitting, and its male thread screws into a female threaded part.

Using a Geberit Mapress 316 Stainless Steel Adaptor Male Thread and Plain End

Push the spigot into a tee branch, elbow or coupling and you can go straight into a female threaded valve body, a pump flange adaptor or a tank boss. Leaving out the short pipe makes the assembly shorter and saves preparing an awkward stub. That is useful in risers and plant rooms where you are fighting for space.

• 15mm x 1/2″
• 22mm x 3/4″ and 28mm x 1″
• 35mm x 1.1/4″, 42mm x 1.1/2″ and 54mm x 2″
• Plain end and male thread, 316 stainless steel

Each pipe size is paired with one thread size, so the choice is simple. Screw the male thread into its fitting first, with a stainless friendly sealant, and tighten using the flats rather than the spigot. Next, mark the depth on the spigot, slide it into the mating socket and press. Look after the spigot surface, since any deep scratch can let water past the seal. Other plain end parts are in the Geberit Mapress 316 stainless steel category.

Plain end adaptors in Glasgow

Plumb Parts sells these from 555 South Street, Glasgow G14 0QX, Mon-Fri 8am-5pm and Sat-Sun 8am-1pm. Online ordering is also open.

Specification

• Brand: Geberit
• Range: Mapress 316 Stainless Steel
• Maker code: 31932 (15mm x 1/2″), 31936 (22mm x 3/4″), 31937 (28mm x 1″), 31938 (35mm x 1.1/4″), 31939 (42mm x 1.1/2″), 31940 (54mm x 2″)
• Material: CrNiMo 316 stainless steel 1.4401 (316)
• Connection: Plain spigot to fit a Mapress socket, male thread on the outlet
• Sizes: 15mm x 1/2″, 22mm x 3/4″, 28mm x 1″, 35mm x 1.1/4″, 42mm x 1.1/2″ and 54mm 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

What is a male adaptor? A fitting with an outside thread that screws into a female threaded part. This one has a male thread at one end and a plain end at the other.

How does the plain end connect? It slides into the socket of another Mapress press fitting and is pressed there, while the male thread screws into a female part.

What sizes does this adaptor come in? Six sizes from 15mm x 1/2 inch up to 54mm x 2 inch, each with one thread size.

Can I use it on a heating system? Yes, it suits heating and cooling water as well as hot and cold drinking water, up to 16 bar.

How do I press a stainless Mapress joint? Cut the pipe square, deburr it and mark the insertion depth, push it fully into the fitting, then press it with a tool and jaws made for the Mapress M contour.

How can I tell if a joint has been pressed? The blue pressing indicator shows whether the fitting has been pressed. Any joint missed will leak when you pressure test, so you’ll find it straight away.

Datasheets

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