What are pipe crosses

What are pipe crosses?

Pipe crosses, also known as four-way fittings, have one inlet and three outlets and typically have solvent weld sockets or female threaded ends. The ends are positioned at a 90 degree angle and the threads are designed to create a stable grip and ensure a connection to the male threaded fittings. The pipe cross can be divided into equal diameter and reducing diameter, and the connecting pipes of equal diameter cross are of the same size; The size of the main pipe connecting pipe of the reducing cross is the same, while the size of the branch pipe connecting pipe is smaller than that of the connecting pipe.

Types of pipe cross

A pipe cross allows four direction transition in pipeline system. Let us know more about pipe crosses under the following heads:

What is a 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.

We are manufacturer of Reducing cross and supply high quality Reducing cross in both large and small quantities worldwide & offer you the best prices in the market.

We have a team of experienced professionals with years of experience in manufacturing.

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
65×65	2/1/2×2.1/2	73.0	76	73.0	76	76	76
65×50	2/1/2×2	73.0	76	60.3	57	76	70
65×40	2/1/2×1.1/2	73.0	76	48.3	45	76	67
65×32	2/1/2×1.1/4	73.0	76	42.4	38	76	64
65×25	2/1/2×1	73.0	76	33.7	32	76	57
80×80	3×3	88.9	89	88.9	89	86	86
80×65	3×2.1/2	88.9	89	73.0	76	86	83
80×50	3×2	88.9	89	60.3	57	86	76
80×40	3×1.1/2	88.9	89	48.3	45	86	73
80×32	3×1.1/4	88.9	89	42.4	38	86	70
90×90	3.1/2×3.1/2	101.6	–	101.6	–	95	95
90×80	3.1/2×3	101.6	–	88.9	89	95	92
90×65	3.1/2×2.1/2	101.6	–	73.0	76	95	89
90×50	3.1/2×2	101.6	–	60.3	57	95	83
90×40	3.1/2×1.1/2	101.6	–	48.3	45	95	79
100×100	4×4	114.3	108	114.3	108	105	105
100×90	4×3.1/2	114.3	108	101.6	–	105	102
100×80	4×3	114.3	108	88.9	89	105	98
100×65	4×2.1/2	114.3	108	73.0	76	105	95
100×50	4×2	114.3	108	60.3	57	105	89
100×40	4×1.1/2	114.3	108	48.3	45	105	86
125×125	5×5	141.3	133	141.3	133	124	124
125×100	5×4	141.3	133	114.3	108	124	117
125×90	5×3.1/2	141.3	–	101.6	–	124	114
125×80	5×3	141.3	133	88.9	89	124	111
125×65	5×2.1.2	141.3	133	73.0	76	124	108
125×50	5×2	141.3	133	60.3	57	124	105
150×150	6×6	168.3	159	168.3	159	143	143
150×125	6×5	168.3	159	141.3	133	143	137
150×100	6×4	168.3	159	114.3	108	143	130
150×90	6×3.1/2	168.3	–	101.6	–	143	127
150×80	6×3	168.3	159	88.9	89	143	124
150×65	6×2.1/2	168.3	159	73.0	76	143	121
200×200	8×8	219.1	219	219.1	219	178	178
200×150	8×6	219.1	219	168.3	159	178	168
200×125	8×5	219.1	219	141.4	133	178	162
200×100	8×4	219.1	219	114.3	108	178	156
200×90	8×3.1/2	219.1	–	101.6	–	178	152
250×250	10×10	273.0	273	273.0	273	216	216
250×200	10×8	273.0	273	219.1	219	216	203
250×150	10×6	273.0	273	168.3	159	216	194
250×125	10×5	273.0	273	141.3	133	216	191
250×100	10×4	273.0	273	114.3	108	216	184
300×300	12×12	323.9	325	323.9	325	254	254
300×250	12×10	323.9	325	273.0	273	254	241
300×200	12×8	323.9	325	219.1	219	254	229
300×150	12×6	323.9	325	168.3	159	254	219
300×125	12×5	323.9	325	141.3	133	254	216
350×350	14×14	355.6	377	355.6	377	279	279
350×300	14×12	355.6	377	323.9	325	279	270
350×250	14×10	355.6	377	273.0	273	279	257
350×200	14×8	355.6	377	219.1	219	279	248
350×150	14×6	355.6	377	168.3	159	279	238
400×400	16×16	406.4	426	406.4	426	305	305
400×350	16×14	406.4	426	355.6	377	305	305
400×300	16×12	406.4	426	323.9	325	305	295
400×250	16×10	406.4	426	273.0	273	305	283
400×200	16×8	406.4	426	219.1	219	305	273
400×150	16×6	406.4	426	168.3	159	305	264
450×450	18×18	457	480	457	480	343	343
450×400	18×16	457	480	406.4	426	343	330
450×350	18×14	457	480	355.6	377	343	330
450×300	18×12	457	480	323.9	325	343	321
450×250	18×10	457	480	273.0	273	343	308
450×200	18×8	457	480	219.1	219	343	298
500×500	20×20	508	530	508	530	381	381
500×450	20×20	508	530	457	480	381	368
500×400	20×20	508	530	406.4	426	381	356
500×350	20×20	508	530	355.6	377	381	356
500×300	20×20	508	530	323.9	325	381	346
500×250	20×20	508	530	273.0	273	381	333
500×200	20×20	508	530	219.1	219	381	324

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.

What is a equal cross

The equal cross is one kind of the pipe cross, just like a equal tee, the equal cross means all the 4 ends of the cross are in same diameter.

We have a team of experienced professionals with years of experience in manufacturing.

ASME B16.9 Butt weld Equal Cross Dimensions

Nominal Pipe Size (NPS)	DN	Outside Diameter at Bevel	Center- to-End
			Run.C	Outlet. M[Notes(1) and (2)]
1/2	15	21.3	25	25
3/4	20	26.7	29	29
1	25	33.4	38	38
1-1/4	32	42.2	48	48
1-1/2	40	48.3	57	57
2	50	60.3	64	64
2-1/2	65	73.0	76	76
3	80	88.9	86	86
3-1/2	90	101.6	95	95
4	100	114.3	105	105
5	125	141.3	124	124
6	150	168.3	143	143
8	200	219.1	178	178
10	250	273.0	216	216
12	300	323.8	254	254
14	350	355.6	279	279
16	400	406.4	305	305
18	450	457	343	343
20	500	508	381	381
22	550	559	419	419
24	600	610	432	432
26	650	660	495	495
28	700	711	521	521
30	750	762	559	559
32	800	813	597	597
34	850	864	635	635
36	900	914	673	673
38	950	965	711	711
40	1000	1016	749	749
42	1050	1067	762	711
44	1100	1118	813	762
46	1150	1168	851	800
48	1200	1219	889	838

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.

What is a saddle previously

Saddle previously is the ventilation ducts ‘crotch tee’, its shaped like pants, there equal and unequal diameter, the formal name is “tube tapered pants tee.” There is no standard size, to be based on three tube spacing center line of the front and graphic design draw graphics, Lofting produced, lofting a certain degree of difficulty.

Sheet metal is engaging, steel welding.

We are manufacturer of Saddle previously and supply high quality Saddle previously in both large and small quantities worldwide & offer you the best prices in the market.

Size range: 1/2 to 72 inches

Industrial Processes of Saddle previously

Bending, squeezing, pressing, forging, machining and more

Saddle previously DIN 2618 demention

Saddle previously DIN2618 is the ventilation ducts ‘crotch tee’, its shaped like pants, there Equal and unequal diameter, the formal name is “tube tapered pants tee.” There is no standard size, to be based on three tube spacing center line of the front and graphic design draw graphics, Lofting produced, lofting a certain degree of difficulty. Sheet metal is engaging, steel welding.

Applications of Saddle previously DIN2618:
Saddle previously DIN2618 is to replace the existing tee fitting, the use of flexibility, praised by domestic and foreign markets.

Features of pipe crosses

• There are three female openings in a T shaped pipe cross.
• There are straight pipe crosses which have the same size openings.
• Reducing pipe crosses have one opening of different size and two openings of the same size.
• There are sanitary pipe crosses which are used in waste lines. These kind of pipe crosses have a curved branch which is designed for a clean out plug. They are used to prevent obstruction of waste.
• A cross pipe cross has four equal sized female openings.
• A wing pipe cross has lugs to fasten the fitting to a wall or stud.
• A compression pipe cross uses compression fittings on two or more ends.
• A test pipe cross has a threaded opening. This opening is used in conjunction with a threaded plug for a clean-out opening on a drain pipe.

Size of pipe crosses

Pipe cross, LT, Lateral cross , RT, Reducing cross, cross fittings accord to ANSI, ISO, JIS and DIN Standards, Measures 1/2 to 56 Inches.

• Size range: 1/2 to 20 inches
• Types: Straight cross, Reducing cross, Y-type
• Pressure: SCH5 to SCH160
• Standard: ANSI B16.9/B16.28, MSS SP-43/SP-75

The pipe fitting not only played a role in conection the cossing pipeline but also can control the volume by designed with different dimension of cross ends,sometimes we also adopt rib to reinforce the mechanical property when face hard woeking conditions.

Pattern	Weld	Seamless
Nominal size	1/2”-48” (DN15-DN1200)	1/2”-20” (DN15-DN500)
Wall thickness	2~100mm	2~50mm
Bend radius	SCH5S-SCH160 ,XXS	SCH5-SCH160
Type	cross/reducing cross	cross/reducing cross

Materials of pipe crosses

• Carbon scrossl: ASTM/ASME A234 WPB-WPC
• Alloy scrossl: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP 911
• Stainless scrossl: 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 scrossl: ASTM/ASME A402 WPL 3-WPL 6
• High performance scrossl: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Manufacturing process of pipe cross

The process flow of pipe cross is as follows:

• Incoming inspection of raw materials → blanking → pressing → heat treatment → pickling → reshaping → polishing → rolling sand → groove → pickling passivation → identification → inspection and warehousing

Incoming inspection of raw materials

The steel pipes must comply with the provisions of corresponding steel pipe manufacturing standards. The quality certificate of the manufacturing company shall be provided. When the steel pipe enters the factory, the quality inspector and keeper shall inspect and accept the diameter, wall thickness and appearance quality of the steel pipe.
Whether the mark and furnace batch number of the pipe material are consistent with the material certificate. Recheck the chemical composition analysis, mechanical property analysis and metallographic structure analysis according to the standards and the requirements of the demander.
The inner and outer surfaces of seamless steel pipes shall be free of cracks, folds, folds, delaminations, cracks, scabs and other defects.
The steel pipes shall be neatly arranged in the stockyard or workshop, and shall not be placed disorderly, there shall be no extrusion or collision of heavy objects, and there shall be no collision during hoisting..

Blanking of pipe cross

Sawing machine or automatic flame cutter shall be used for blanking.
The blanking length shall meet the technical requirements.
The two end faces of the cut pipe section shall be leveled by turning method.
Ensure the perpendicularity deviation of the two ends facing the axis and the parallelism deviation of the two end faces.

Pressing of pipe cross

During pressing, the corresponding pressing mould shall be selected according to the specification and model. The power equipment is a four-way hydraulic forming machine. Before pressing, the equipment shall be checked to confirm that it is in good operation.
Correctly adjust each limit switch and check the effectiveness and sensitivity of each control switch.
The equipment shall be operated by a specially assigned person. During the production process, pay attention to the reading of pressure at all times and make corresponding adjustment. In case of emergency such as abnormal pressure or unable to push, stop the machine immediately for inspection.
After the press is started, it is not allowed to put the head, hand and other body parts into the working table of the press.

Heat treatment of pipe cross

After the cross is extruded, heat treatment shall be carried out to eliminate the stress generated in the cold extrusion process.
Heat the seamless steel pipe to 727 ℃ to 912 ℃ or 30 ~ 50 ℃ above the critical temperature of Austenite for a certain time (the constant temperature time is 1H per 25mm wall thickness and shall not be less than 15min), and then conduct rapid water cooling.

Pickling of pipe cross

Remove the residue left on the surface after the solid solution of the cross.

Reshaping of pipe cross

Keep the diameter of the cross within the standard.

Polishing of pipe cross

The materials required for polishing include polishing wax, hemp wheel, nylon wheel, cloth wheel, wind wheel, thread cloth wheel, etc. Surface polishing can make the pipe fittings into mirror effect and improve the corrosion resistance of the pipe fittings. Internal polishing is mainly to prevent the fluid substances in the pipe from forming hanging wall in the pipe. It is easy to cause pollution and blockage in the pipe after a long time.

Rolling sand of pipe cross

Sand rolling is a surface treatment method, that is, the processed products are put into the sand rolling cylinder, and the elbow and sand roll together, so that the rust and burr fall off and the edges and corners are smooth. The elbow with good sand rolling can increase the wear resistance and hardness. The cost is higher than sandblasting, but the surface gloss is much better.

Groove of pipe cross

Groove equipment adopts ordinary lathe.
The burr generated by the groove shall be polished clean.
The groove angle is 37.5 ± 2.5 °.

Pickling passivation of pipe cross

Black and yellow oxide scale will appear during the processing of stainless steel pipe fittings. In order to improve the beauty and corrosion resistance of stainless steel, the processed pipe fittings need to be pickled and passivated. The purpose is to clean the oxide scale generated after processing, so that the pipe fittings are silver white, and an oxide film with chromium as the main material will be formed on the surface, so as not to cause secondary oxygen corrosion of the pipe fittings, so as to achieve the purpose of passivation, so as to prolong the service life of the equipment.

Identification of pipe cross

The finished cross shall be provided with durability identification with clear writing.
If the demander has specified the identification method, it shall be implemented according to the demander’s regulations; If not specified by the demander, the standard shall be implemented according to the product performance.

Inspection and warehousing of pipe cross

The geometric dimension and appearance of the cross shall be inspected by the quality inspector before warehousing.
The internal and external surfaces of the Cross shall be free of scratches, grooves or obvious depressions formed by collision, and there shall be no defects such as cracks, scarring, folding, delamination and so on.
Geometry inspection shall be carried out according to the standard.
The cross inspection record form shall be filled in for inspection.
The cross can only be put into storage after passing the inspection. It shall be neatly placed in the designated inventory area according to the specification and model, and ensure that it is free from dirt and collision.

How to buy pipe crosses

• Type of pipe cross – whether welded or seamless
• Standard
• Size and dimension
• Wall thickness
• Material of construction
• Durability and Economical
• High pressure and temperature resistance
• Corrosion resistance etc.

Applications of pipe cross

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

Source: China Pipe Crosses Manufacturer – Yaang Pipe Industry Co., Limited (www.epowermetals.com)

(Yaang Pipe Industry is a leading manufacturer and supplier of nickel alloy and stainless steel products, including Super Duplex Stainless Steel Flanges, Stainless Steel Flanges, Stainless Steel Pipe Fittings, Stainless Steel Pipe. Yaang products are widely used in Shipbuilding, Nuclear power, Marine engineering, Petroleum, Chemical, Mining, Sewage treatment, Natural gas and Pressure vessels and other industries.)

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