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Overview
The Grooved Mechanical Cross is a modular pipe fitting created by assembling the upper housings of two mechanical tees. This configuration provides a flexible four-way branching solution for grooved piping systems. In specific installation scenarios, it can serve as an effective substitute for a traditional reducing cross, especially when ease of installation and system adaptability are required.
Product Description
A Grooved Mechanical Cross allows a main pipeline to be divided into four directions through a mechanical clamping method. The fitting is mounted directly onto the main pipe, while the branch outlets are connected using grooved ends. This design eliminates the need for cutting, welding, or installing multiple fittings, offering a practical and efficient approach to complex pipeline layouts.
Different assembly combinations make it possible to accommodate equal or reducing branch connections, meeting diverse system requirements.
| Sizes: | DN40–DN250 (1½″–10″) threaded outlet |
| Materials: | ASTM A536,GRADE 65-45-12,QT450-10 |
| Threads: | ASME B1.20.1,ISO 7-1,BS21,BSPT,NPT,GB 7306 |
| Surface Treatment: | Electrophoretic painted,Electroplated, Epoxy, Hot-dip Galvanized |
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| Air pressure and holding pressure schedule | ||||||
| NO. | Size | Pressure | Time to keep the pressure | Remark | ||
| 1 | ≤DN50 | ≥0.5MPa | ≥5s | Air pressure | ||
| 2 | >DN50~DN350 | ≥0.5MPa | ≥10s | Air pressure | ||
| 3 | >DN350 | 1.5times the rated working pressure | 5min | water pressure | ||
| Rubber gasket | |||
| Name | Recommended Application Medium | Related Standards | Recommended Application Temperature Range |
| E:EPDM | water supply,drainage, sewage,normal temperature air,weak acid,and weak alkali | GB5135.11 | -30℃~+130℃ |
| GB/T 21873 | -22°F~+266°F | ||
| continuous supply of 110℃ hot water | GB/T 27572 | ||
| D:NITRILE | petroleum,vegetable oil, mineral oil | GB5135.11 | -20℃~+80℃ |
| GB/T 23658 | -4°F~+176°F | ||
| S:SIUCON | drinking water | GB/T 28604 | -40℃~+180℃ |
| high-temperature dry air and some high-temperature chemicals | GB5135.11 | -40°F~+356°F | |
| F:FLUORINE | the acid,alkaline solution,and hot lubricating oil | HG/T 2181 | -20℃~+180° |
| -4°F~+356F | |||
| V:NEOPRENE | seawater | '-20°℃~+100℃ -4°F~+212°F | |
| Nominal Size mm/n | Pipe O.D mm/in | Working Pressure PSI/MPa | U Bolt Size | Dimensions L mm/in | Hole cuting dimensions | |||
| No.-Size mm | Φ | L | K | H | ||||
| 50x25 2x1 | 60.3x33.7 2.375x1.327 | 300 2.07 | 2-M10x55 | 75 2.953 | 116 4.567 | 64 2.520 | 72 2.835 | 38 1.496 |
| 50x32 2x1-1/4 | 60.3x42.4 2.375x1.669 | 300 2.07 | 2-M10x55 | 75 2.953 | 116 4.566 | 65 2.559 | 72 2.835 | 46 1.811 |
| 50x40 2x1-1/2 | 60.3x48.3 2.375x1.900 | 300 2.07 | 2-M10x55 | 75 2.953 | 116 4.566 | 65 2.559 | 72 2.835 | 46 1.811 |
| 65x25 2-1/2/x1 | 73x33.7 2.874x1.327 | 300 2.07 | 2-M12x60 | 93 3.661 | 136 5.354 | 80 3.150 | 77 3.031 | 38 1.496 |
| 65x32 2-1/2/x1-1/4 | 73x42.4 2.874x1.669 | 300 2.07 | 2-M12x60 | 93 3.661 | 136 5.354 | 80 3.150 | 83 3.268 | 46 1.811 |
| 65x40 2-1/2/x1-1/2 | 73x48.3 2.874x1.900 | 300 2.07 | 2-M12x60 | 93 3.661 | 136 5.354 | 80 3.150 | 83 3.268 | 51 2.007 |
| 65x25 2-2/1x1 | 76.1x33.7 2.996x1.327 | 300 2.07 | 2-M12x60 | 102 4.016 | 144 5.669 | 78 3.071 | 77 3.031 | 38 1.496 |
| 65x32 2-1/2x1-1/4 | 76.1x42.4 2.996x1.669 | 300 2.07 | 2-M12x60 | 102 4.016 | 144 5.669 | 78 3.071 | 83 3.267 | 46 1.811 |
| 65x40 2-1/2/x1-1/2 | 76.1x48.3 2.996x1.900 | 300 2.07 | 2-M12x60 | 102 4.016 | 144 5.669 | 78 3.071 | 83 3.267 | 51 2.077 |
| 80x25 3x1 | 88.9x33.7 3.500x1.327 | 300 2.07 | 2-M12x65 | 114 4.488 | 152 5.984 | 83 3.268 | 77 3.031 | 39 1.496 |
| 80x32 3x1-1/4 | 88.9x42.4 3.500x1.669 | 300 2.07 | 2-M12x65 | 114 4.488 | 152 5.984 | 85 3.346 | 83 3.268 | 46 1.811 |
| 80x40 3x1-1/2 | 88.9x48.3 3.500x1.900 | 300 2.07 | 2-M12x65 | 114 4.488 | 152 5.984 | 85 3.346 | 93 3.661 | 51 2.007 |
| 80x50 3x2 | 88.9x60.3 3.500x2.375 | 300 2.07 | 2-M12x65 | 114 4.488 | 152 5.984 | 85 3.346 | 99 3.898 | 61 2.402 |
| 80x65 3x2-1/2 | 88.9×73 3.500x2.874 | 300 2.07 | 2-M12x65 | 114 4.488 | 152 5.984 | 85 3.346 | 99 3.898 | 81 3.189 |
| 80x65 3x2-1/2 | 88.9x76 3.500x2.996 | 300 2.07 | 2-M12x65 | 114 4.488 | 152 5.984 | 85 3.346 | 99 3.898 | 81 3.189 |
| 100x25 4x1 | 114.3x33.7 4.500x1.327 | 300 2.07 | 2-M12x65 | 140 5.512 | 180 7.187 | 97 3.819 | 77 3.031 | 38 1.496 |
| 100×32 4x1-1/4 | 114.3x42.4 4.500x1.669 | 300 2.07 | 2-M12x65 | 140 5.512 | 180 7.187 | 97 3.819 | 83 3.268 | 46 1.811 |
| 100x40 4x1-1/2 | 114.3x48.3 4.500x1.900 | 300 2.07 | 2-M12x65 | 140 5.512 | 180 7.187 | 98 3.858 | 92 3.622 | 51 2.007 |
| 100x50 4x2 | 114.3x60.3 4.500x2.375 | 300 2.07 | 2-M12x65 | 140 5.512 | 180 7.087 | 99 3.898 | 98 3.858 | 61 2.402 |
| 100x65 4x2-1/2 | 114.3x73 4.500x2.874 | 300 2.07 | 2-M12x65 | 140 5.512 | 180 7.087 | 99 3.898 | 122 4.803 | 81 3.189 |
| 100x65 4x2-1/2 | 114.3x76.1 4.500x2.996 | 300 2.07 | 2-M12x65 | 140 5.512 | 180 7.087 | 99 3.898 | 122 4.803 | 81 3.189 |
| 100x80 4x3 | 114.3x88.9 4.500x3.500 | 300 2.07 | 2-M12x65 | 140 5.512 | 180 7.087 | 98 3.858 | 123 4.843 | 86 3.386 |
| 125x50 5x2 | 139.7x60.3 5.500x2.375 | 300 2.07 | 2-M16x75 | 168 6.614 | 220 8.661 | 112 4.409 | 99 3.819 | 61 2.402 |
| 125×65 5x2-1/2 | 139.7x76.1 5.500x2.996 | 300 2.07 | 2-M16x75 | 168 6.614 | 220 8.661 | 112 4.409 | 122 4.409 | 81 3.189 |
| 125x80 5x3 | 139.7x88.9 5.500x3.500 | 300 2.07 | 2-M16x75 | 168 6.614 | 220 8.661 | 113 4.449 | 136 5.354 | 86 3.386 |
| 150x65 6x2-1/2 | 159.0x76.1 6.260x2.996 | 300 2.07 | 2-M16×85 | 187 7.362 | 237 9.331 | 121 4.764 | 122 4.409 | 81 3.189 |
| 150x80 6x3 | 159.0x88.9 6.260x3.500 | 300 2.07 | 2-M16x85 | 187 7.362 | 237 9.331 | 121 4.764 | 136 5.354 | 86 3.386 |
| 150x100 6x4 | 159.0x108.0 6.260x4.252 | 300 2.07 | 2-M16x85 | 187 7.362 | 237 9.331 | 125 4.921 | 158 6.220 | 114 4.488 |
| 150x100 6x4 | 159.0x114.3 6.260x4.500 | 300 2.07 | 2-M16x85 | 187 7.362 | 237 9.331 | 125 4.921 | 158 6.220 | 114 4.488 |
| 150x50 6x2 | 165.1x60.3 6.500x2.375 | 300 2.07 | 2-M16x85 | 194 7.638 | 247 9.724 | 123 4.842 | 99 3.898 | 61 2.402 |
| 150x65 6x2-1/2 | 1651x76.1 6.500x2.996 | 300 2.07 | 2-M16x85 | 194 7.638 | 247 9.724 | 123 4.842 | 123 4.843 | 81 3.189 |
| 150x80 6x3 | 165.1x88.9 6.500×3.500 | 300 2.07 | 2-M16x85 | 194 7.638 | 247 9.724 | 125 4.921 | 136 5.354 | 86 3.389 |
| 150x100 6x4 | 165.1x114.3 6.500x4.500 | 300 2.07 | 2-M16x85 | 194 7.638 | 247 9.724 | 125 4.921 | 158 6.220 | 114 4.488 |
| 150x25 6x1 | 168.3x33.7 6.625x1.327 | 300 2.07 | 2-M16x85 | 198 7.795 | 248 9.764 | 125 4.921 | 79 3.110 | 38 1.496 |
| 50x32 6x1-1/4 | 168.3x42.4 6.625x1.669 | 300 2.07 | 2-M16x85 | 198 7.795 | 248 9.764 | 125 4.921 | 84 3.701 | 46 1.811 |
| 150x40 6x1-1/2 | 168.3x48.3 6.625x1.900 | 300 2.07 | 2-M16x85 | 198 7.795 | 248 9.764 | 125 4.921 | 94 3.701 | 51 2.007 |
| 150x50 6x2 | 168.3x60.3 6.625x2.375 | 300 2.07 | 2-M16x85 | 198 7.795 | 248 9.764 | 125 4.921 | 99 3.898 | 61 2.401 |
| 150x65 6x2-1/2 | 168.3x73 6.625x2.874 | 300 2.07 | 2-M16x85 | 198 7.795 | 248 9.764 | 128 5.039 | 122 4.409 | 81 3.189 |
| 150x65 6x2-1/2 | 168.3x76.1 6.625x2.996 | 300 2.07 | 2-M16x85 | 198 7.795 | 248 9.764 | 128 5.039 | 122 4.409 | 81 3.189 |
| 150x80 6x3 | 168.3x88.9 6.625x3.500 | 300 2.07 | 2-M16x85 | 198 7.795 | 248 9.764 | 130 5.118 | 136 5.354 | 86 3.385 |
| 50x100 6x4 | 168.3x114.3 6.625x4.500 | 300 2.07 | 2-M16×85 | 198 7.795 | 248 9.764 | 128 5.039 | 157 6.181 | 114 4.488 |
| 200x65 8x2-1/2 | 216x76.1 8.504x2.996 | 300 2.07 | 2-M16x100 | 247 9.724 | 302 11.890 | 150 5.906 | 127 5.000 | 81 3.189 |
| 200x50 8x2 | 219.1x60.3 8.625x2.375 | 300 2.07 | 2-M16x100 | 250 9.843 | 302 11.890 | 152 5.984 | 99 3.898 | 61 2.402 |
| 200x65 8x2-1/2 | 219.1x73 8.625x2.874 | 300 2.07 | 2-M16x100 | 250 9.843 | 302 11.890 | 152 5.984 | 130 5.118 |  813..189 |
| 200x65 8x2-1/2 | 219.1x76.1 8.625x2.996 | 300 2.07 | 2-M16x100 | 250 9.843 | 302 11.890 | 152 5.984 | 130 5.118 | 81 3.189 |
| 200x80 8x3 | 2191x88.9 8.625x3.500 | 300 2.07 | 2-M16x100 | 250 9.843 | 302 11.890 | 152 5.984 | 137 5.394 | 86 3.386 |
| 200x100 8x4 | 219.1x114.3 8.625x4.500 | 300 2.07 | 2-M16x100 | 250 9.843 | 304 11.969 | 153 6.024 | 162 6.378 | 114 4.488 |
| 200x150 8x6 | 219.1x168.3 8.625x6.625 | 300 2.07 | 2-M16x100 | 250 9.843 | 304 11.969 | 158 6.850 | 210 8.425 | 160 6.299 |
| 250*65 10*2-1/2 | 273.0*73 10.748*2.874 | 300 2.07 | 2-M22*130 | 307 12.087 | 376 14.803 | 186 7.323 | 131 5.157 | 81 3.189 |
| 250*100 10*4 | 273.0*114.3 10.748*4.500 | 300 2.07 | 2-M22*130 | 307 12.087 | 376 14.803 | 186 7.323 | 161 6.339 | 144 4.488 |
Manufactured by combining the upper sections of two mechanical tees
Grooved branch connections compatible with standard grooved piping systems
No welding or hot work required during installation
Flexible configuration for various branch size combinations
Reduces installation time and labor costs
Allows easy disassembly for maintenance or system modification
Grooved Mechanical Cross fittings are commonly used in:
Fire protection and sprinkler piping networks
HVAC and building service systems
Industrial water and utility pipelines
Retrofit and expansion projects
Applications requiring fast installation and flexible branching
They are particularly suitable for projects where grooved connections are preferred and installation efficiency is critical.
Main production process
Installation Instruction For Threaded &Grooved Mechanical Tee
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| 1.Take out the Rigid &Flexible Coupling Clean the gasket sealing surface within 16mm of the hole and visually inspect the sealing surface for defects that may prevent proper sealing of the gasket.Don't drill the hole on weld line. | 2.Split the Rigid &Flexible Coupling If any burrs or slug exists at the pipe hole,please remove them before assembly,to protect the gasket and avoid leakage. | 3.Pipe preparation Insert the gasket into outlet housing making sure the tab in the gasket line up with the tab recesses in the housing.Align outlet housing over the pipe hole making sure that the locating collar is in the pipe hole. | 4.Lubricate gasket Align the strap around the pipe,inser the bolts and tighten the nuts finger tight. | |||||
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| 5.Gasket installation Alternatively and evenly tighten the nuts to the specified bolt torque. | 6.Housing installation There should be even gaps on two sides between upper and lower housings. | |||||||
FAQ
Q1: What is a grooved mechanical cross used for?
A: It is used to divide a main pipeline into four grooved branch connections using a mechanical clamping method.
Q2: Can it replace a traditional reducing cross?
A: Yes, in certain applications it can function as an alternative, depending on pipe size and system design.
Q3: Does installation require welding or cutting the pipe?
A: No. The fitting is mechanically attached, eliminating the need for welding or cutting.
Q4: Are different size combinations available?
A: Yes. Various configurations are possible, including equal and reducing branch arrangements.
Q5: Is it suitable for system modifications or expansions?
A: Yes. Its mechanical and grooved design makes it ideal for upgrades, retrofits, and maintenance work.
