Maryland Metrics: R550-150 Backnut

Maryland Metrics: Plumbing Fitting Details

R550-150 Backnut


Details
SPECIFICATION Type Backnut, parallel thread to BS2779 Mild Steel Sizes The following sizes are supplied in Mild Steel: 1/4 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. 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

Standard
BS EN 1042 & ISO 49 OR BS 143 & BS1256
Connection Type
BS Parallel to BS2779
Material
Malleable Iron
Fitting Type
Backnuts

Dimensions and Weights
Size	Weight (kg/100)	Pressure	a (mm)	f (mm)
1	6.3	PN25	10	45
1.1/2	14	PN25	12	63
1.1/4	10.4	PN25	11	55
1/2	2.6	PN25	8	31
1/4	1.6	PN25	7	22
2	21	PN25	13	76
2.1/2	30.6	PN25	13	98
3	32	PN25	21	109
3/4	4	PN25	9	38
3/8	2.2	PN25	8	26

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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