Watson McDaniel 4003 Stainless Steel Thermostatic Steam Trap 1" NPT

Description:

The Watson McDaniel 4003 Stainless Steel Thermostatic Steam Trap is used in steam distribution systems to automatically discharge condensate and air while preventing the loss of live steam. Commonly installed in process equipment, steam tracing lines, heat exchangers, and industrial steam mains, its stainless steel construction provides reliable performance and corrosion resistance in demanding environments. Maintenance teams, plant operators, and system integrators use the Watson McDaniel 4003 1" NPT Steam Trap for replacement, retrofit, preventive maintenance, and steam system optimization.

Applications:

The Watson McDaniel 4003 Stainless Steel Thermostatic Steam Trap is commonly used in chemical processing plants, food and beverage facilities, pharmaceutical manufacturing, power generation systems, HVAC steam networks, and industrial process heating applications. The Watson McDaniel 4003 is designed for 1" NPT steam piping where efficient condensate removal, rapid air venting, and dependable thermostatic operation are required to maintain system performance.

Technical Specifications:

• Brand: Watson McDaniel
• Part Number: 4003
• Product Type: Thermostatic Steam Trap
• Connection Size: 1 in. NPT
• Body Material: Stainless Steel
• Operating Principle: Balanced pressure thermostatic element
• Function: Automatic condensate and air removal while minimizing live steam loss
• Connection Type: Female NPT
• Designed for steam distribution and process heating applications
• Corrosion-resistant construction for industrial service
• Suitable for process equipment, heat exchangers, and steam tracing systems
• In-line serviceable design for maintenance and replacement applications

Common Replacements:

• Watson McDaniel WT4003S 
• Watson McDaniel WT3003S 
• Watson McDaniel WT5000