Reducing cross

Reducing cross

The reducing cross also is called unequal pipe cross , it is the pipe cross which the four branch ends are not in the same diameters.  just like a unequal tee, the reducing cross connect the pipes of different diameters.

Since the pipe cross has four ends, when describe a reducing cross people should indicate all the four ends diameters and their positions, or else it may bring som misunderstanding.

Type:	Butt weld (BW), Seamless, Reducing cross
Standards:	ASME / ANSI – B 16.9 ASTM A403 – ASME SA403 – ‘Standard Specification for Wrought Austenitic   Stainless Steel Piping Fittings’ API 590-605 ASME B16.9 – ‘Factory-Made Wrought Buttwelding Fittings’ ASME B16.25 – ‘Buttwelding Ends’ ASME B16.28 – ‘Wrought Steel Buttwelding Short Radius Elbows and   Returns’ MSS SP-43 – ‘Wrought and Fabricated Butt-Welding Fittings for Low   Pressure, Corrosion Resistant Applications’
Dimension:	ANSI B16.9, ANSI B16.28, MSS-SP-43 Type A, MSS-SP-43 Type B, JIS   B2312, JIS B2313
Thickness:	Schedule 5S, 10S, 20S, S10, S20, S30, STD, 40S, S40, S60, XS, 80S, S80,   S100, S120, S140, S160, XXS and etc.
Schedule:	Sch 5 TO Sch XXS.
Size:	1/2” TO 36”, (Seamless up to 24”), (Welded 8” TO 36”)

Materials 
Carbon steel: ASTM/ASME A234 WPB-WPC
Alloy steel: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911 
Stainless steel: ASTM/ASME A403 WP 304-304L-304H-304LN-304N 
ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti 
ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H
Low temperature steel: ASTM/ASME A402 WPL 3-WPL 6 
High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Types: T, Pipe cross, LT, Lateral cross , RT, Reducing cross
Pressure: SCH5 to SCH160
Standard: ANSI B16.9 / 16.28, ASTM A53/A106, API 5L, ASME B36.10M—1996, DIN2605 / 2615 / 2616, JIS P2311/2312

Industrial Processes 
Bending, squeezing, pressing, forging, machining and more

Applications of pipe cross:
Pipe cross are widely used in various commercial and industrial applications. Industrial applications include: Chemical processing, Petroleum, Pulp/paper, Refining, Textile, Waste treatment, Marine, Utilities/power generation, Industrial equipment, Automotive, Gas compression and distribution industries.

Pipe cross are also recommended for industrial plant fluid power systems.

ASME B16.9 Butt weld Reducing Cross Dimensions    

Nominal Diameter		Outside Diameter				Center to End
		D1		D2
DN	NPS	Series A	Series B	Series A	Series B	C	M
15×15	1/2×1/2	21.3	18	21.3	18	25	25
15×10	1/2×3/8	21.3	18	17.3	14	25	25
15×8	1/2×1/4	21.3	18	13.7	10	25	25
20×20	3/4×3/4	26.9	25	26.9	25	29	29
20×15	3/4×1/2	26.9	25	21.3	18	29	29
20×10	3/4×3/8	26.9	25	17.3	14	29	29
25×25	1×1	33.7	32	33.7	32	38	38
25×20	1×3/4	33.7	32	26.9	25	38	38
25×15	1×1/2	33.7	32	21.3	18	38	38
32×32	1.1/4×1.1/4	42.4	38	42.4	38	48	48
32×25	1.1/4×1	42.4	38	33.7	32	48	48
32×20	1.1/4×3/4	42.4	38	26.9	25	48	48
32×15	1.1/4×1/2	42.4	38	21.3	18	48	48
40×40	1.1/2×1.1/2	48.3	45	48.3	45	57	57
40×32	1.1/2×1.1/4	48.3	45	42.4	38	57	57
40×25	1.1/2×1	48.3	45	33.7	32	57	57
40×20	1.1/2×3/4	48.3	45	26.9	25	57	57
40×15	1.1/2×1/2	48.3	45	21.3	18	57	57
50×50	2×2	60.3	57	60.3	57	64	64
50×40	2×1.1/2	60.3	57	48.3	45	64	60
50×32	2×1.1/4	60.3	57	42.4	38	64	57
50×25	2×1	60.3	57	33.7	32	64	51
50×20	2×3/4	60.3	57	26.9	25	64	44

GENERAL NOTES: All dimensions are in millimeters.
(a). Outlet dimension M for NPS 26(DN 650) and large is recommended but not required.
(b). Dimensions applicable to crosses NPS 24(DN 600) and smaller.

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