Threaded Mechanical Tee | UL/FM | XGQT03S | 1½″–10″ Sch10/40

Overview

The Threaded Mechanical Tee is a practical and efficient pipe fitting designed to create a branch connection directly from an existing steel pipe without the need for cutting or welding. It offers the same core function as a standard mechanical tee, with the added advantage of a threaded outlet, allowing easy connection to threaded pipes, valves, or sprinkler drops. Widely used in fire protection and sprinkler systems, this fitting provides a reliable, pressure-rated solution for branch line installation.

Product Description

A Threaded Mechanical Tee consists of a two-piece housing, sealing gasket, and high-strength bolts. The fitting clamps securely around the main pipe, while the threaded outlet allows branch pipes to be connected via standard pipe threads. This design enables fast installation, minimizes system downtime, and eliminates the need for complex pipe modification. It is engineered to operate safely under working pressures up to 300 PSI or 363 PSI, depending on the size and specification.

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	81 3..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

Installation Instruction For Threaded &Grooved Mechanical Tee

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.
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 – Threaded Mechanical Tee

Q1: What is a Threaded Mechanical Tee used for?

It is used to add a threaded branch connection to an existing steel pipe, commonly in fire protection and sprinkler systems.

Q2: How does it differ from a grooved mechanical tee?

The main difference is the outlet connection:

• Threaded Mechanical Tee: Threaded outlet

• Grooved Mechanical Tee: Grooved outlet
  Both serve the same branching function.

Q3: What is the maximum working pressure?

The threaded mechanical tee can operate under 300 PSI or 363 PSI, depending on the model and size.

Q4: Does installation require welding or cutting the pipe?

No. The fitting clamps onto the pipe and creates a branch outlet without welding, making installation fast and efficient.

Q5: What surface finishes are available?

Available finishes include red, blue, and silver paint, as well as hot-dip galvanized and epoxy-coated options for enhanced corrosion resistance.

Q6: Is it suitable for fire protection systems?

Yes. It is widely used in fire-fighting and sprinkler piping systems, meeting the pressure and performance requirements of such applications.