Overview
The Grooved Reducing Tee is a specialized grooved fitting designed to create a branch connection between pipes of different diameters in grooved piping systems. By combining the functions of a standard tee and a reducer, it allows efficient flow diversion while maintaining system integrity. Featuring a no-welding installation, this fitting offers high reliability, flexibility, and performance, making it an ideal choice for fire protection, HVAC, and industrial piping systems.
Product Description
The Grooved Reducing Tee is a specialized grooved fitting designed to create a branch connection between pipes of different diameters in grooved piping systems. By combining the functions of a standard tee and a reducer, it allows efficient flow diversion while maintaining system integrity. Featuring a no-welding installation, this fitting offers high reliability, flexibility, and performance, making it an ideal choice for fire protection, HVAC, and industrial piping systems.
Material: ASTM A536,GRADE 65-45-12,QT450-10
Threads: ASME B1.20.1,ISO 7-1,BS21,BSPT,NPT,GB 7306
Size: ISO6182,AWWA C606
Size Available: 1"-12"
Surface Treatment: Electrophoretic painted
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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 | |
Integrated reducing and branching function in one fitting
Grooved-end connection for fast, secure installation
No welding or threading required, improving site safety
High reliability and leak resistance, comparable or superior to welded joints
Working pressure up to 300 PSI
FM approved and UL certified for fire protection systems
Multiple coating options: red painted, galvanized, epoxy blue, or grey
Pipe size transition: Connects pipes of different diameters
Flow diversion: Splits the main pipeline into a reduced branch
System optimization: Reduces the number of fittings and joints
Fire protection and sprinkler systems
HVAC piping networks
Industrial and utility pipelines
Commercial and residential building services
Main production process


Application Areas
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| fire | oil pipeline | gas pipeline | water treatment | water Pipeline Systems | HVAC |
It is used to create a branch connection between pipes of different diameters in grooved piping systems without welding.
It offers faster installation, easier maintenance, higher flexibility, and eliminates the need for hot work such as welding.
The standard working pressure is 300 PSI, suitable for most fire protection and industrial applications.
Yes. The Grooved Reducing Tee is FM approved and UL certified, making it suitable for approved fire sprinkler and fire-fighting systems.
Standard sizes range from 2″ to 12″, covering most common piping requirements.
Available coatings include red painted, hot-dip galvanized, epoxy blue, and grey, offering corrosion protection for different environments.