Identify Drip Torch components and sub-assemblies to learn more about how our top-selling product is made and what parts and assemblies we sell to our customers.
- Drip Torch
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The Drip Torch is used in wildfire suppression, controlled burning, prescribed burns, and other forestry and agricultural applications to intentionally ignite fires.
The design and manufacture of this item is governed by the US Forest Service, US Department of Transportation, and federal law.
Components & Assemblies
The Drip Torch consists of several components and sub-assemblies that are assembled in part and in whole to fulfill customer orders. The diagram below is a component listing used by our customers for the purchase of spare parts. All drip torch components and assemblies are numbered with the #100 prefix.
Customers can purchase these parts directly on our website. Visit www.kcrmfg.com and navigate to the Drip Torch Parts & Accessories section to see what we sell.
Drip Torch Tank
The Drip Torch Tank (#100-01) is 1-1/4 gallon container designed for a diesel/gasoline fuel mixture. The tank consists of the following sub-assemblies:
Tank Tube (#100-011): 6" aluminum tubing that is cut to length and washed with degreaser to remove any contaminants for the welding process.
Tank Bottom (#100-012): An aluminum casting that is machined with a CNC lathe. The casting is reversible with different permanent markings for our DOT-approved (red) and non-DOT approved (silver) tanks.
Tank Top (#100-013): An aluminum casting that is machined with a CNC lathe and then drilled using a drill press.
Tank Handle (#100-014): A 3/4" pipe that is cut to length, hydraulically formed, and then trimmed to fit on to the Tank Tube.
The 3-Piece Assembly (#100-110-31), also referred to as the Fuel Spout/Igniter Assembly in the Forest Service Specification, consists of the following sub-assemblies:
- Tank Cover Assembly (#100-04-31)
- Spout with Fuel Trap (#100-11)
- Igniter/Nozzle Assembly (#100-40)
The Tank Cover and Igniter/Nozzle assemblies are threaded on to each end of the Spout with Fuel Trap, applying a gasket sealant to the Tank Cover threaded area to prevent leakage.
Fuel flows from the Tank Assembly through the Tank Cover, into the Fuel Spout, and out through the Nozzle onto the Igniter Wick. The 3-Piece Assembly is designed so that it can be stored inside of the fuel tank when not in use.
CHECKPOINT: On a sample drip torch, find and name the three major sub-assemblies of the 3-Piece Assembly.
Tank Cover Assembly
The Tank Cover Assembly (#100-04-31) is the closure for the Tank Assembly and is threaded on to the Spout with Fuel Trap (#100-11) with a gasket sealer. The assembly consists of the following components and sub-assemblies:
Tank Cover (#100-04)
An aluminum casting that is machined on a manual lathe and CNC mill.
A stainless steel ball used as the sealing component of the check valve.
A brass seat that is threaded into the Tank Cover to provide a loose fit against the Ball, allowing liquid to flow through the check valve.
Outlet Screen (#100-07)
A brass screen that rests against the Seat to prevent contaminants from flowing into the Spout and Nozzle.
Plug & Chain Assembly (#100-08)
A brass sub-assembly that connects the Discharge Plug to the Tank Cover. Don't forget the Chain Screw!
Discharge Plug (#100-081)
A brass plug that is threaded into the check valve to seal the closure when not in use.
Discharge Plug O-Ring (#100-082)
A nitrile o-ring placed around the Discharge Plug to function as the seal.
Chain w/ S-Hook (#100-083)
A sub-assembly consisting of a brass s-hook (#100-085) attached to 3" chain (#100-083-10).
Chain Screw (#100-084)
A screw that attached the Chain w/ S-Hook to the Tank Cover.
Spout with Fuel Trap
The Spout with Fuel Trap (#100-11) is a 1/4" carbon steel pipe cut to length, threaded on either end, and then manually formed to include a fuel trap shaped like a pig tail to provide flashback protection.
The Igniter/Nozzle Assembly (#100-40) consists of a brass nozzle and igniter subassembly that is used to pour fuel onto the wick and maintain a flame during use of the Drip Torch.
A brass casting that is machined on a CNC mill and threaded on to the end of the Spout with Fuel Trap (#100-11).
The Igniter consists of:
CHECKPOINT: On a sample Drip Torch, find and name the individual components that make up the check valve and the igniter.
Breather Valve Assembly
The Breather Valve Assembly (#100-35) is used to provide air into the tank during use to control the flow of fuel. This assembly consists of a Breather Nut (#100-352) that is screwed into the Tank Top and the Breather Stem Assembly (#100-353-31), which consists of:
- The Breather Valve Tube (#100-351-20) that is 1/8" brass tube cut to length and deburred.
- The Breather Stem (#100-353) that is soldered to the Breather Valve Tube.
- The Breather Valve O-Ring (#OR-008) that is placed around the Breather Stem to provide a seal when threaded into the Breather Nut.
CHECKPOINT: What is the difference between a Breather Stem Assembly and a Breather Valve Assembly? Can a customer purchase the Breather Stem Assembly?
Tank Cover Gasket
The Tank Cover Gasket (#100-22) is placed inside the gasket recess of the Tank Top to provide a sealing surface for the Tank Cover.
The Lock Ring (#100-23) is a brass casting machined on a CNC lathe and is threaded on to the Tank Top to secure the Tank Cover.
CHECKPOINT: You were asked to fulfill one #100-60. Name the item and each of the sub-assemblies or parts to make this item.