Siemens Building Technology 599-02004 Valve 322057-301 it provides the reliability needed

it provides the reliability needed for demanding evaporator loads

Precision Engineering: Matches OEM specifications for seamless drop-in installation in 48-frame mounts

this valve is designed to handle non-corrosive refrigerants and maintain stable system performance in high-demand HVACR environments

Its 316 stainless steel internal components and heavy-duty casting make it suitable for industrial steam header environments where long-term durability and chemical resistance are mandatory requirements for steam system efficiency and fluid handling performance

Field technicians should note that the White-Rodgers 1145-33 is the authorized replacement for 1145-42 and competitive model 9004793105

Siemens Building Technology 599-02004 Valve 322057-301 it provides the reliability neededThe Siemens 599 02004 is a high performance 1 2 inch 2 way normally closed globe valve designed for precise flow control in terminal unit applications. Built with a rugged forged brass body and brass trim, this ANSI Class 250 rated valve manages hot or chilled water and water glycol solutions up to 50% concentration. It features a 1. 0 Cv capacity with a modified equal percentage flow characteristic, ensuring stable regulation even at low flow rates.