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Steam Traps - WATSON MCDANIEL

Keep your steam systems running efficiently with our dependable steam traps. Designed to discharge condensate and non-condensable gases without losing live steam, these components help improve energy efficiency, protect equipment, and reduce operating costs. Our selection includes thermodynamic, thermostatic, and mechanical (float and inverted bucket) steam traps, available in a wide range of sizes, materials, and pressure ratings. Ideal for boilers, heat exchangers, process equipment, and distribution lines, steam traps ensure safe, reliable performance across industrial and commercial applications. With rugged construction, efficient operation, and trusted-brand quality, our steam traps deliver long service life, reduced maintenance, and consistent energy savings, making them a smart choice for any steam system.
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The Watson McDaniel FT3-015-13-N is a cast iron float & thermostatic steam trap with a 3/4" NPT connection, stainless steel internals, and a max working pressure of 15 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT33-030-13-N is a cast iron float & thermostatic steam trap with a 3/4" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT34-030-14-N is a cast iron float & thermostatic steam trap with a 1.0" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT35-030-14-N is a cast iron float & thermostatic steam trap with a 1.0" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT36-030-15-N is a cast iron float & thermostatic steam trap with a 1-1/4" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT37L-030-16-N is a cast iron float & thermostatic steam trap with a 1-1/2" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT38-030-17-N is a cast iron float & thermostatic steam trap with a 2.0" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT4-015-14-N is a cast iron float & thermostatic steam trap with a 1.0" NPT connection, stainless steel internals, and a max working pressure of 15 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT6-015-15-N is a cast iron float & thermostatic steam trap with a 1-1/4" NPT connection, stainless steel internals, and a max working pressure of 15 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT600-145-12-F150 is a carbon steel float & thermostatic steam trap with a 1/2" ANSI 150# Flange connection, stainless steel internals, and a max working pressure of 145 PSI. FT600 Series steam traps were specifically designed for removing condensate and air from higher pressure steam applications or where steel bodies are specified. They are typically used in chemical plants and petrochemical refineries on reboilers, heat exchangers, and other critical process applications.
Price Not Available
The Watson McDaniel FT600-145-12-F300 is a carbon steel float & thermostatic steam trap with a 1/2" ANSI 300# Flange connection, stainless steel internals, and a max working pressure of 145 PSI. FT600 Series steam traps were specifically designed for removing condensate and air from higher pressure steam applications or where steel bodies are specified. They are typically used in chemical plants and petrochemical refineries on reboilers, heat exchangers, and other critical process applications.
Price Not Available
The Watson McDaniel FT600-145-12-F600 is a carbon steel float & thermostatic steam trap with a 1/2" ANSI 600# Flange connection, stainless steel internals, and a max working pressure of 145 PSI. FT600 Series steam traps were specifically designed for removing condensate and air from higher pressure steam applications or where steel bodies are specified. They are typically used in chemical plants and petrochemical refineries on reboilers, heat exchangers, and other critical process applications.
Price Not Available
The Watson McDaniel FT3-015-13-N is a cast iron float & thermostatic steam trap with a 3/4" NPT connection, stainless steel internals, and a max working pressure of 15 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT33-030-13-N is a cast iron float & thermostatic steam trap with a 3/4" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT34-030-14-N is a cast iron float & thermostatic steam trap with a 1.0" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT35-030-14-N is a cast iron float & thermostatic steam trap with a 1.0" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT36-030-15-N is a cast iron float & thermostatic steam trap with a 1-1/4" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT37L-030-16-N is a cast iron float & thermostatic steam trap with a 1-1/2" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT38-030-17-N is a cast iron float & thermostatic steam trap with a 2.0" NPT connection, stainless steel internals, and a max working pressure of 30 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT4-015-14-N is a cast iron float & thermostatic steam trap with a 1.0" NPT connection, stainless steel internals, and a max working pressure of 15 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT6-015-15-N is a cast iron float & thermostatic steam trap with a 1-1/4" NPT connection, stainless steel internals, and a max working pressure of 15 PSI. FT Series steam traps are designed for operating pressures up to 75 PSI. These float and thermomstatic traps are used for low pressure HVAC and light industrial process appliations such as unit heaters, water heaters, pressing machines, heat exchangers, and coils.
Price Not Available
The Watson McDaniel FT600-145-12-F150 is a carbon steel float & thermostatic steam trap with a 1/2" ANSI 150# Flange connection, stainless steel internals, and a max working pressure of 145 PSI. FT600 Series steam traps were specifically designed for removing condensate and air from higher pressure steam applications or where steel bodies are specified. They are typically used in chemical plants and petrochemical refineries on reboilers, heat exchangers, and other critical process applications.
Price Not Available
The Watson McDaniel FT600-145-12-F300 is a carbon steel float & thermostatic steam trap with a 1/2" ANSI 300# Flange connection, stainless steel internals, and a max working pressure of 145 PSI. FT600 Series steam traps were specifically designed for removing condensate and air from higher pressure steam applications or where steel bodies are specified. They are typically used in chemical plants and petrochemical refineries on reboilers, heat exchangers, and other critical process applications.
Price Not Available
The Watson McDaniel FT600-145-12-F600 is a carbon steel float & thermostatic steam trap with a 1/2" ANSI 600# Flange connection, stainless steel internals, and a max working pressure of 145 PSI. FT600 Series steam traps were specifically designed for removing condensate and air from higher pressure steam applications or where steel bodies are specified. They are typically used in chemical plants and petrochemical refineries on reboilers, heat exchangers, and other critical process applications.
Price Not Available
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About NISCO Inc.

NISCO offers a wide range of pressure gauges & instruments, diaphragm seals, thermometers, valves, and flow control products to the industrial and commercial marketplaces, as well as other resellers like ourselves. We can also provide other value-added services such as gauge repair, NIST traceable calibration, diaphragm seal assembly, and valve automation. NISCO takes pride in providing extensive product knowledge, helpful customer service, and market competitive pricing to help fit whatever need you may have because it is our goal to be regarded by our customers as the best supplier of pressure, temperature, and flow control products.

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