Equal Cross

QS Pipe Fitting: Zhangzhou Equal Cross

Equal cross in a wide size and wall range, in carbon, stainless, alloy or duplex steel, made to ANSI, ISO, JIS and DIN standards.

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One-Minute Overview

Equal cross with four openings of the same bore at right angles.
1/2 to 56 inches, DN 15 to DN 1400, walls from SCH5 to SCH160.
Carbon, stainless, alloy or duplex steel to ANSI, ISO, JIS and DIN.
Sizes, schedules and standards are confirmed per inquiry.

An equal cross joins four pipes of the same bore at right angles, so one fitting can split a line into three outlets or gather three inlets into one. This range spans 1/2 to 56 inches, or DN 15 to DN 1400, with wall thicknesses from SCH5 to SCH160, and comes in carbon steel, stainless steel, alloy steel and duplex steel. Manufacturing follows ANSI, ISO, JIS and DIN, so the cross can be specified into whichever dimensional system the plant uses. It is a common choice for water treatment, chemical processing, oil and gas and power generation piping. Sizes, wall thicknesses and manufacturing standards are confirmed per inquiry, and a detailed specification sheet is available on request.

Name: Equal Cross
Size: 1/2 to 56 inches, DN 15 to DN 1400
Wall Thickness: from SCH5 to SCH160
Material: Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel
Manufacturing Standards: ANSI, ISO, JIS, DIN
Sizes, wall thicknesses and manufacturing standards are confirmed per inquiry, and a detailed specification sheet is available on request.

An equal cross is four same-bore openings on one body, and the wide size range here, 1/2 to 56 inches or DN 15 to DN 1400, means it shows up in everything from instrument manifolds to trunk lines. Start with the standard system, because ANSI, ISO, JIS and DIN do not share the same outside diameter series and a cross from one will not align with pipe from another. Pick the wall from the SCH5 to SCH160 range against the design pressure and the run pipe schedule, then choose the material: carbon steel for general duty, stainless or duplex for corrosion, alloy for temperature. A cross concentrates the reactions of three branches in one body, so support design deserves attention before the order goes in.

Fit-up is the hard part, because four joints have to land square on two perpendicular axes at once. Tack all four ends loosely, check both axes, then weld opposite branches in turn so the heat of one joint does not pull the other outlet out of line. Cap with controlled heat input and let the cross cool evenly, then verify each centre-to-end dimension and inspect all four beads before the spool ships. Store crosses by size, schedule and standard so a DIN part never wanders onto an ANSI spool during a turnaround. Sizes, wall thicknesses and manufacturing standards are confirmed per inquiry, so ask for the specification sheet with the order.

FAQ

Q1. How do I choose the wall schedule for an equal cross?

Match it to the run pipe schedule and the design pressure, then check the branch loads. SCH5 suits light low-pressure duty, while SCH160 is there when the line is highly stressed or thin-margin. Because a cross carries reaction forces from three branches, the wall and the supports should be reviewed together rather than copied from the straight pipe.

Q2. Can I mix a DIN cross with ANSI pipe if the nominal size matches?

Same nominal, different outside diameter, so no. ANSI, ISO, JIS and DIN each fix their own diameter series, and mixing them leaves a stepped bore and a bad root gap. Pick one system for the whole spool, or design a proper transition piece instead of hoping the welder can absorb the mismatch.

Q3. Is a four-way cross just two tees having a good time?

Not quite, though it does double the plumbing. Two tees back to back take more room and add welds, while one cross keeps the junction compact but concentrates all the branch loads in a single body. That is why the support design and the welding sequence matter more here than the fitting count.

Q4. What's the minimum I can order?

Standard flange insulation gasket kits start at one set, and standard gaskets, studs, washers and sleeves start at one piece. Kits made to your drawing or for a non-standard bolt pattern are quoted individually, because the minimum really depends on the material and the tooling involved.

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