Maryland Metrics: Plumbing Fitting Details

R550-161  Tee - Increasing On Branch  


Tee increasing on branch

All fittings comply with the relevant BS or BSEN standard. For further assistance please call our technical helpline on (410)358-3130 or (800)638-1830 or email us at techinfo@mdmetric.com.

When ordering GALVANISED fittings add suffix 'G' to the figure number.


These fittings have Taper threads providing the most effective jointing solution:

> Full engagement of the whole thread length - reliable strong joints
> No need for hemp filler - faster installation, lower costs
> High torques can be applied without risk of damaging the fitting
> Freedom to break and re-make joints
> Professional joint appearance

Taper threads make better joints

Following a policy of continuous development, Crane Fluid Systems reserves the right to alter specifications and dimensions shown in the e-catalog without prior notice.

Dimensional Drawing

BSEN 10242 & ISO 49 OR BS143 & BS1256
Connection Type
BS taper to BS21 and ISO7
Malleable Iron
Fitting Type
Dimensions and Weights
Size Weight
Pressure a
1 x 1.1/2 65.3 PN25 46 42
1 x 1.1/4 34.9 PN25 42 40
1.1/2 x 2 72.6 PN25 55 52
1.1/4 x 2 73.9 PN25 54 48
1/2 x 3/4 19.5 PN25 31 30
2 x 2.1/2 118.4 PN25 66 61
3/4 x 1 22.2 PN25 36 35

How to order: R550-xxx size (example: R550-144 1/2) or R550-xxxG size (example: R550-140G 1/2x1/4) for galvanized fittings where xxx is replaced by the figure number

Please note that not all of the fitting styles, sizes and materials are stocked in North America.
Please allow sufficient lead time for delivery, or check with us for availabilty.

Phones: (800) 638-1830 or (410) 358-3130 are available Monday-Friday 8:30 AM to 5:30 PM Eastern time.
Faxes: (800) 872-9329 or (410) 358-3142 & E-mail are available anytime.
Warehouse & showroom hours are Monday-Friday 10 AM to 5:30 PM.
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