Browse Categories

Gas Inlet Flow Meter for knife & heat treat furnaces

<< Previous in Knife Making / Heat Treating Kilns Next in Knife Making / Heat Treating Kilns >>

Price: $269.00
Manufacturer: Paragon Industries
Part No: 1332

More Options

Inert Gas Inlet Flow Meter GIFM

The Benefits and Limitations

Oxygen in the furnace forms a scale on the surface of knife blades and other parts during heat treating. To avoid surface scale, wrap the parts in heat treating foil or inject an inert gas into the furnace. The gas displaces the oxygen.

Please note that the gas may reduce heating element life. Also, gas injection does not offer better results than heat treating foil nor does gas injection prevent all scaling. The main benefit of gas injection is the savings in time over wrapping the steel in foil.

The Flow Meter Solenoid Kit Upgrade

The flow meter can be ordered with an optional solenoid kit, which enables you to turn the gas on or off for each segment, or stage, of the firing. (Please add $101.00 for the solenoid kit to the price shown above.) Paragon knifemaking furnaces are available with the 12-key Sentry controller and the compact, less expensive 3-key Sentry Xpress. The solenoid kit must be ordered with the 12-key controller. Program the controller to turn on the gas at temperatures where carbon begins to form on the tool steel.

The Flow Meter Pressure Regulator

In addition to the flow meter, you will also need a regulator to reduce the pressure from the gas tank. The gas pressure to the flow meter should be less than 20 psig (psig = pounds per square inch, gauge). (Paragon does not sell the pressure regulator.)

Flow Meter Operation

The gas will leak out through the furnace bricks and sheet metal seams, because the furnaces are not air tight. This is why you will need a steady flow of gas at high temperatures. However, gas at room temperature will expand to over ten times its volume when injected into a firing chamber at 1000°F and above. This is why a low setting on the flow meter is adequate to prevent most scaling.

Safety

Argon gas is popular for heat treating because of its price. Please note that the gas will not support life and is heavier than air. Therefore, your shop must be well ventilated when using gas injection.

Related Products

Double Barrel 14T Pro 2 Zone
MSRP: $3,099.00
Price: $2,789.00
You Save: $310.00
Double Barrel 14T Pro 2 Zone
Double wide 13.25" wide x 14" deep x 5.25 tall interior
free shipping
Double Barrel 18T Pro 3 Zone Heat Treating Furnace
MSRP: $3,682.00
Price: $3,299.00
You Save: $383.00
Double Barrel 18T Pro 3 Zone Heat Treating Furnace
Double Wide 13.25" x 18" x 13" Interior heat treat kiln
free shipping
Double Barrel 24T Pro 3 Zone Knife Maker's Heat Treating Furnace
MSRP: $4,312.00
Price: $3,879.00
You Save: $433.00
Double Barrel 24T Pro 3 Zone Knife Maker's Heat Treating Furnace
Double wide 13.25" wide x 24" deep x 5.25 tall interior
free shipping
Double Barrel 36T Pro 3 Zone Knife Making & Heat Treating Furnace
MSRP: $5,487.00
Price: $4,939.00
You Save: $548.00
Double Barrel 36T Pro 3 Zone Knife Making & Heat Treating Furnace
Double Wide 13.25" x 36" x 5.25" Interior
free shipping
Double Barrel 9T Pro Knife Maker’s Heat Treating Furnace
MSRP: $2,611.00
Price: $2,349.99
You Save: $261.01
Double Barrel 9T Pro Knife Maker’s Heat Treating Furnace
Double Wide 13" x 9" Deep Knife & Heat Treat Kiln
free shipping
Evenheat HT-1 Heat Treat Kiln
MSRP: $1,910.00
Price: $1,719.00
You Save: $191.00
Evenheat HT-1 Heat Treat Kiln
Heat Treat Oven
free shipping
KM-24T Pro 3 Zone Knife Maker’s Heat Treating Furnace
MSRP: $3,796.00
Price: $3,415.00
You Save: $381.00
KM-24T Pro 3 Zone Knife Maker’s Heat Treating Furnace
Double wide 6.5" wide x 24" deep x 5.25 tall interior
free shipping
KM-36T Pro 3 Zone Knife Maker’s Heat Treating Furnace
MSRP: $4,659.00
Price: $4,199.00
You Save: $460.00
KM-36T Pro 3 Zone Knife Maker’s Heat Treating Furnace
6.5" x 36" x 5.25" interior Knife Heat Treat Furnace
free shipping
Double Barrel 18T Heat Treating Furnace
MSRP: $1,932.00
Price: $1,739.00
You Save: $193.00
Double Barrel 18T Heat Treating Furnace
Extra Wide for 2 knives or gun parts
Double Barrel 24T Heat Treating Furnace
MSRP: $2,157.00
Price: $1,941.00
You Save: $216.00
Double Barrel 24T Heat Treating Furnace
Double Wide 11" x 24" x 4.25" interior heat treat kiln
Double Barrel 9T Heat Treating Furnace
MSRP: $2,103.00
Price: $1,895.00
You Save: $208.00
Double Barrel 9T Heat Treating Furnace
Double Wide 9" Deep Knife & heat treat furnace
KM14T Knife Maker's Heat Treating Furnace
MSRP: $1,573.00
Price: $1,419.00
You Save: $154.00
KM14T Knife Maker's Heat Treating Furnace
14.5" Deep Knife making furnace
KM-18T Knife Maker’s Heat Treating Furnace
MSRP: $1,724.00
Price: $1,549.00
You Save: $175.00
KM-18T Knife Maker’s Heat Treating Furnace
18" deep knife making furnace
KM-24T Knife Maker’s Heat Treating Furnace
MSRP: $1,830.00
Price: $1,649.00
You Save: $181.00
KM-24T Knife Maker’s Heat Treating Furnace
24" deep knife making furnace
KM-36T Knife Maker’s Heat Treating Furnace
MSRP: $2,009.00
Price: $1,799.00
You Save: $210.00
KM-36T Knife Maker’s Heat Treating Furnace
36" deep knife making furnace
KM-45T Knife Maker’s Heat Treating Furnace
MSRP: $2,995.00
Price: $2,695.00
You Save: $300.00
KM-45T Knife Maker’s Heat Treating Furnace
45" deep knife making furnace
Xpress-KM14T Knife Maker's Heat Treating Furnace
MSRP: $1,379.11
Price: $1,249.00
You Save: $130.11
Xpress-KM14T Knife Maker's Heat Treating Furnace
14.5" Deep Knife making furnace
Xpress-KM-18T Knife Maker’s Heat Treating Furnace
MSRP: $1,519.00
Price: $1,369.00
You Save: $150.00
Xpress-KM-18T Knife Maker’s Heat Treating Furnace
18" deep knife making furnace
Xpress-KM-24T Knife Maker’s Heat Treating Furnace
MSRP: $1,618.00
Price: $1,459.00
You Save: $159.00
Xpress-KM-24T Knife Maker’s Heat Treating Furnace
24" deep knife making furnace
Xpress-KM-36T Knife Maker’s Heat Treating Furnace
MSRP: $1,806.00
Price: $1,625.00
You Save: $181.00
Xpress-KM-36T Knife Maker’s Heat Treating Furnace
36" deep knife making furnace
PMT-10 Heat Treating Furnace
MSRP: $1,806.00
Price: $1,625.00
You Save: $181.00
PMT-10 Heat Treating Furnace
8.5" x 9" x 8.75" Heat treat kiln
PMT-18 Heat Treating Furnace
MSRP: $3,447.00
Price: $3,099.00
You Save: $348.00
PMT-18 Heat Treating Furnace
13" x 18" x 13" interior Heat Treat Kiln
free shipping
Knife Maker's Heat Treating Kit
Price: $179.00
Knife Maker's Heat Treating Kit
Add a Knife Maker's kit to your kiln purchase.
Shopping Cart
Your cart is empty.
Mailing Lists