Description
The Armstrong International C3510-4 is a heavy-duty, high-pressure drain trap engineered for demanding steam and condensate management applications. Part of the Series 11LD line, this free floating lever drain trap is constructed from corrosion-resistant stainless steel, making it an ideal choice for aggressive process environments where durability and long service life are essential.
The free floating lever mechanism automatically expels condensate and non-condensable gases while preventing steam loss — delivering reliable, efficient drainage without the need for constant manual intervention. With a maximum allowable pressure of 400 PSI and a precision-machined 5/64″ orifice, this trap is designed to handle high-pressure steam systems with consistent, controlled discharge.
Key Features
- Series 11LD Free Floating Lever design for automatic condensate discharge
- Stainless steel construction for superior corrosion resistance and durability
- Maximum operating pressure: 400 PSI
- Inlet connection: 3/4″ NPT
- Outlet connection: 1/2″ NPT
- Orifice size: 5/64″ for precise, controlled flow
- Suitable for high-pressure steam and condensate return systems
Specifications
- Brand: Armstrong International
- SKU: C3510-4
- Series: 11LD
- Trap Type: Free Floating Lever Drain Trap
- Body Material: Stainless Steel
- Inlet Connection: 3/4″ NPT
- Outlet Connection: 1/2″ NPT
- Maximum Pressure: 400 PSI
- Orifice Size: 5/64″
Applications
- High-pressure steam distribution systems
- Industrial process piping and condensate return lines
- HVAC and boiler plant steam systems
- Chemical, pharmaceutical, and food processing facilities
- Any application requiring reliable, automatic condensate removal at elevated pressures







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