Armstrong International 812-3/4-30 Trap

Optimize your steam system's performance with the Armstrong International 812-3/4-30 Trap, a high-efficiency inverted bucket steam trap designed for rugged industrial environments. This cast iron steam trap features a durable 3/4 inch NPT connection and is specifically calibrated for a 30 PSI operating pressure with a precision-engineered 1/4 inch orifice. Its unique mechanical design ensures a water seal that prevents live steam loss, while the free-floating stainless steel leverage system provides reliable condensate drainage without fixed pivots that cause friction or wear. Ideal for industrial steam heating and laundry equipment, the Armstrong 812 series is renowned for its resistance to water hammer and its ability to handle dirt and scale through a self-scrubbing action. By preventing condensate backup and ensuring continuous automatic air and CO2 venting at steam temperature, this trap significantly improves energy efficiency and reduces long-term maintenance costs in your HVACR infrastructure.

This item is not eligible for free shipping.

Key Benefits

• Exceptional Durability: Constructed with an ASTM A48 Class 30 cast iron body and all-stainless steel internals to withstand harsh operating conditions.
• Efficient Condensate Removal: The inverted bucket mechanism reacts immediately to condensate levels, preventing backup and ensuring optimal heat transfer.
• Energy Conservation: Features a top-mounted discharge orifice with a deep water seal to eliminate the loss of live steam.
• Minimal Maintenance: The self-scrubbing action keeps dirt and scale in suspension until discharged, reducing the risk of clogging or orifice fouling.
• Water Hammer Resistance: The open bucket design is naturally resistant to damage from sudden pressure surges or water hammer.

Common Questions

What is the maximum pressure for the Armstrong 812-3/4-30?
This specific model is configured for a maximum operating pressure of 30 PSI with a 1/4" orifice, though the 812 series vessel design can handle higher pressures depending on the orifice size selected.

Can this steam trap be repaired in the field?
Yes, one of the primary advantages of the Armstrong 812 series is that all internal components are repairable, allowing for extended service life without replacing the entire unit.

Is this trap suitable for vertical or horizontal installation?
The Series 812 is designed for horizontal piping configurations. Proper orientation is critical for the mechanical bucket to function correctly via buoyancy.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.