The spool is a kind of pipe fitting used at the branch of the pipeline. The spool is divided into equal
diameter and different diameter. The ends of the equal diameter spools are all the same size; The size of
the nozzle of the branch pipe is smaller than that of the main pipe. For the use of seamless pipes to
manufacture spools, there are currently two commonly used processes: hydraulic bulging and hot pressing.
The efficiency is high; the wall thickness of the main pipe and the shoulder of the spool are increased. Due
to the large tonnage of equipment required for the hydraulic bulging process of the seamless spool, the
applicable forming materials are those with relatively low cold work hardening tendency. Carbon steel, low
alloy steel, stainless steel, including some non-ferrous metal materials, such as copper, aluminum, titanium,
etc. Due to the use of pressing spools after heating, the tonnage of equipment required for material forming
is reduced. The adaptability of hot-pressing spools to materials is relatively high. Wide, suitable for low
carbon steel, alloy steel, stainless steel materials; especially for large diameter and thick wall spools, this
forming process is usually used. We produce carbon steel equal-diameter spools and carbon steel reducers
Cross, stainless steel equal diameter cross, stainless steel reducing cross, etc.
standard
JIS B2311-2009 JIS B2312-2009 JIS B2313-2009
GB/T12459-2005 GB/T13401-2005 GB/T10752-2005
SH/T3408-1996 SH/T3409-1996
SY/T0609-2006 SY/T0518-2002 SY/T0518-2002 SY/T0518-2002 1998
DL/T695-1999 GD2000 GD87-1101
HG/T21635-1987 HG/T21631-1990
Size
Seamless cross: 1/2″～24″DN15～DN600
Slit cross: 4″～78″ DN150～DN1900
Wall thickness
sch10, sch20, sch30, std, sch40, sch60, xs, sch80, sch100,
sch120 , sch140, sch160, xxs, sch5s, sch20s, sch40s, sch80s
Max Wall Thickness: 150mm
Material
Carbon Steel: ASTM/ASME A234 WPB-WPC
Alloy: 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
Forming by cold working or hot working methods such as mechanical processing.
Application industries:
electric power, oil and gas, petrochemical, chemical, shipbuilding, heating, papermaking, metallurgy, etc.
Four-way parameters
| Production range | ||
|
seamless cros
|
Slit cross
|
|
|
outer diamete
|
1/2″～32″
|
4″～78”
|
|
wall thickness
|
2mm～150mm
|
|
|
product type
|
Equal diameter four-way, reducing four-way
|
|
We are a professional four-way manufacturer and supplier in China. The main products are industrial
pipes, industrial flanges, etc. They have high strength, good toughness, impact resistance, corrosion
resistance, good temperature resistance, convenient and fast construction, suitable for use in Electric
power, petrochemical, chemical, pharmaceutical, boiler, heating, shipbuilding, pipeline, machinery
manufacturing and other industries. Welcome to contact us, we guarantee to provide you with a reasonable
price!
Post time: May-14-2025