Common Questions & Technical Support: Why do I need a high-altitude specific switch

Effective Air Venting: Specialized bellows design prevents air binding

heavy-duty "husky" thermocouple is engineered to provide a robust 25-35 mV open circuit range

the system must be depressurized and drained to the level of the valve before disassembly of the bonnet and internals

and 70 Series water feeders and low water cut-offs

Armstrong International 811-3/4-125 Trap R-410A Common Questions & Technical Support:The Armstrong International 811 3 4 125 Trap is a high performance 3 4 inch NPT inverted bucket steam trap engineered for superior condensate management in industrial steam systems. Constructed with a rugged ASTM A48 Class 30 cast iron body, this Series 811 steam trap is designed to operate reliably at a maximum allowable pressure of 125 PSI. Featuring a precision lapped 1 8 inch orifice and stainless steel internal components, it ensures efficient