261 Series Hot Tappers Sizes: 1/2" to 6"
For Hot Tap Plug Insertion Systems click here
Tap Live, Pressurized Pipelines Without Interruption
Economical tools allows tapping most pipelines with 1/2" to 6" npt hot taps in water supply pipelines to 100 psig pressure. The overall shaft length is 18" for sizes up to 2" and 24" for larger sizes.
Hot tapping is a process by which a nozzle or hot tap saddle is added to a pressurized pipeline to allow flow into or out of the pipeline, install instruments, sampling probes or to install an inflatable pipe plug. All hot taps should be designed, fabricated, inspected, and tested in accordance with the original code of construction, typically the ASME Code Section VIII Division 1 and API Recommended Practice RP 2201, “Procedures for Welding or Hot Tapping on Equipment in Service.” The hot tapping machine and nozzle design should be checked for weight and thermal load capacity of the pipeline. Welding a hot tap nozzle to the pipeline requires consideration given to dissipating the heat to avoid damaging the pipeline or combustion of the fluid inside the vessel.
We recommend using larger size hole saws over 3” for plastic pipe only. Carbide grit hole-saws generally are better for ductile and steel. Do not use worn hole saws as they may fatigue and break the arbor. Check our Hot Tapper Instruction Sheet for drill speeds. Never exceed 550 RPM for bi-metal and 400 RPM for carbide grit hole saws for any size. Do not exceed 100 psi max. (6.8 bar). The packing seal on the Hot Tapper uses Viton O-rings but because they could leak if warm, it is not recommended that the hot tapper be used with temperatures that may injure the operator.
![]() |
![]() |
![]() |
Single Size Hot Tap (bi-metal) |
1/2" to 2" Hot Tap Kit (bi-metal) |
1/2" to 6" Hot Tap Kit (bi-metal) |
![]() |
![]() |
|
Single Size Hot Tap (carbide grit) |
1/2" to 2" Hot Tap Kit (carbide grit) |
1/2" to 6" Hot Tap Kit (carbide grit) |
Click an Item Number below for the Web Store
Description |
Shpg Wt lbs |
Item Number |
Unit Price Each |
Spare Parts List - Description | Shpg Wt lbs |
Item Number |
Unit Price Each |
|
* Multi-Size Hot Tap Kit, 1/2" to 2" |
28 | 261-0020-K | US $750.00 | Arbor, Hex for hole saws <1 1/8" |
0.5 | 910-8001 | US $12.80 | |
* Multi-Size Hot Tap Kit, 1/2" to 2" Carbide grit Hole Saws |
28 | 261-0020-KC | US $825.00 | Arbor, Hex for hole saws >1 1/2" |
0.5 | 910-8002 | US $24.00 | |
* Multi-Size Hot Tap Kit, 1/2" to 6" |
70 | 261-0060-K | US $1,500.00 | Drill, Pilot 1/4" RD, 7/16" & 5/8" Hex., 4" Long |
0.5 | 910-8003 | US $38.00 | |
* Multi-Size Hot Tap Kit, 1/2" to 6" Carbide grit Hole Saws |
70 | 261-0060-KC | US $1,650.00 | Drill Bit, 1/2" x 20" |
0.5 | 910-8011 | US $65.35 | |
Hot Tapper, 1/2" Single Size |
4 | 261-0005 | US $275.00 | Packing Gland, 3/4" mnpt x 1/2" ID |
0.5 | 910-8103 | US $104.60 | |
Hot Tapper, 3/4" npt x 3/4" Hole Saw |
4 | 261-0007 | US $293.00 | Saw, Hole 3/4" |
0.5 | 910-9031 | US $11.60 | |
Hot Tapper, 3/4" npt x 3/4" Carbide grit Hole Saw |
4 | 261-0007-C | US $323.00 | Saw, Hole 3/4" Carbide grit |
0.5 | 910-9031-C | US $34.90 | |
Hot Tapper, 1" npt x 7/8" Hole Saw |
5 | 261-0010 | US $311.00 | Saw, Hole 7/8" |
0.5 | 910-9041 | US $11.60 | |
Hot Tapper, 1" npt x 7/8" Carbide grit Hole Saw |
5 | 261-0010-C | US $343.00 | Saw, Hole 7/8" Carbide grit |
0.5 | 910-9041-C | US $34.90 | |
Hot Tapper, 1 1/4"npt x 1 1/8" Hole Saw |
5 | 261-0012 | US $329.00 | Saw, Hole 1 1/8" |
0.5 | 910-9061 | US $12.20 | |
Hot Tapper, 1 1/4"npt x 1 1/8" Carbide grit Hole Saw |
5 | 261-0012-C | US $362.00 | Saw, Hole 1 1/8" Carbide grit |
0.5 | 910-9061-C | US $39.15 | |
Hot Tapper, 1 1/2" npt x 1 1/2" Hole Saw |
5 | 261-0015 | US $347.00 | Saw, Hole 1 1/2" |
0.5 | 910-9071 | US $13.15 | |
Hot Tapper, 1 1/2" npt x 1 1/2" Carbide grit Hole Saw |
5 | 261-0015-C | US $382.00 | Saw, Hole 1 1/2" Carbide grit |
0.5 | 910-9071-C | US $39.45 | |
Hot Tapper, 2" npt x 1 7/8" Hole Saw |
6 | 261-0020 | US $363.00 | Saw, Hole 1 7/8" |
0.5 | 910-9081 | US $16.10 | |
Hot Tapper, 2" npt x 1 7/8" Carbide grit Hole Saw |
6 | 261-0020-C | US $400.00 | Saw, Hole 1 7/8" Carbide grit |
0.5 | 910-9081-C | US $48.40 | |
Hot Tapper, 2 1/2" npt x 2 3/8" Hole Saw |
8 | 261-0025 | US $423.00 | Saw, Hole 2 3/8" |
1.0 | 910-9083 | US $20.50 | |
Hot Tapper, 2 1/2" npt x 2 3/8" Carbide grit Hole Saw |
8 | 261-0025-C | US $466.00 | Saw, Hole 2 3/8" Carbide grit |
1.0 | 910-9083-C | US $57.25 | |
Hot Tapper, 3" npt x 2 7/8" Hole Saw |
10 | 261-0030 | US $449.00 | Saw, Hole 2 7/8" |
1.0 | 910-9084 | US $24.40 | |
Hot Tapper, 3" npt x 2 7/8" Carbide grit Hole Saw |
10 | 261-0030-C | US $494.00 | Saw, Hole 2 7/8" Carbide grit |
1.0 | 910-9084-C | US $61.10 | |
Hot Tapper, 3 1/2" npt x 3 3/8" Hole Saw |
13 | 261-0035 | US $480.00 | Saw, Hole 3 3/8" |
1.0 | 910-9085 | US $32.20 | |
Hot Tapper, 3 1/2" npt x 3 3/8" Carbide grit Hole Saw |
13 | 261-0035-C | US $528.00 | Saw, Hole 3 3/8" Carbide grit |
1.0 | 910-9085-C | US $78.20 | |
Hot Tapper, 4" npt x 3 7/8" Hole Saw |
13 | 261-0040 | US $506.00 | Saw, Hole 3 7/8" |
1.5 | 910-9087 | US $39.85 | |
Hot Tapper, 4" npt x 3 7/8" Carbide grit Hole Saw |
13 | 261-0040-C | US $557.00 | Saw, Hole 3 7/8" Carbide grit |
1.5 | 910-9087-C | US $100.05 | |
Hot Tapper, 5" npt x 4 3/4" Hole Saw |
29 | 261-0050 | US $651.00 | Saw, Hole 4 3/4" |
1.5 | 910-9089 | US $84.40 | |
Hot Tapper, 5" npt x 4 3/4" Carbide grit Hole Saw |
29 | 261-0050-C | US $717.00 | Saw, Hole 4 3/4" Carbide grit |
1.5 | 910-9089-C | US $128.65 | |
Hot Tapper, 6" npt x 5 1/2" Hole Saw |
29 | 261-0060 | US $759.00 | Saw, Hole 5 1/2" Deep cut |
1.5 | 910-9091 | US $143.65 | |
Hot Tapper, 6" npt x 5 3/4" Carbide grit Hole Saw |
29 | 261-0060-C | US $835.00 | Saw, Hole 5 3/4" Carbide grit |
1.5 | 910-9091-C | US $150.15 | |
Drill Shaft, 7/16" x 18" |
1.5 | 910-9120 | US $48.65 | |||||
*Multi-Size Hot Tap Kit Includes: |
Drill Shaft, 7/16" x 24" |
1.5 | 910-9124 | US $52.30 | ||||
Carry Case |
O-ring, #206, 0.484"ID x 0.139" Viton 75 Duro |
0.5 | 914-0206-1875 | US $1.00 | ||||
7/16" Drill Shaft |
||||||||
Hole Saws and Bits |
||||||||
Tapping Valve Adaptors |
||||||||
Standard kit contains bi-metal hole saws. |
||||||||
Petersen pipe plug insertion Price subject to change without notice Petersen Terms & Conditions Apply |






