Nor East Controls 30067839-316 Stem

The Nor East Controls 30067839-316 Stem is a precision-engineered internal component designed for heavy-duty 4-inch mixing valve assemblies. Forged from high-grade 316 stainless steel, this stem provides exceptional corrosion resistance and high-tensile strength, making it ideal for the demanding environments of industrial boilers, chillers, and large-scale HVACR systems. In commercial heating and cooling applications, this stem plays a critical role in the accurate modulation of flow rates and fluid temperatures, ensuring that hot and cold service lines are blended with the exact ratio required for system stability.

Engineered for use in the Nor East Controls Series 8600 mixing and 8900 diverting valves, this part facilitates the linear travel necessary for reliable temperature regulation. Its robust construction minimizes mechanical wear even during frequent cycling, which is the standard for 3-way mixing valve service. Whether you are performing a scheduled overhaul or addressing a field failure, replacing a worn stem with this OEM replacement part ensures that the valve body maintains its Class IV shut-off integrity and overall operational efficiency.

• 316 Stainless Steel Construction: Offers superior resistance to pitting and chemical degradation in water or steam applications.
• Optimized for 4-Inch Bodies: Specifically machined for commercial mixing valve hardware to ensure perfect stroke alignment.
• Thermal Stability: Rated for light industrial to high-pressure service, maintaining performance across wide temperature ranges.
• Precision Threading: Ensures secure attachment to the actuator and plug, reducing mechanical play and hunting.

Is this stem compatible with Series 8900 diverting valves?
Yes, this component is technically specified for both the Series 8600 mixing and 8900 diverting series for 4-inch valve bodies.

What are the signs that a mixing valve stem needs replacement?
Field technicians should check for erratic temperature fluctuations, slow response times to actuator signals, or visible leakage around the packing nut, which often indicates stem scoring or deformation.

Does this stem include the packing or O-rings?
This part number refers specifically to the 316 stainless steel stem; secondary seals and packing sets should be sourced separately for a full valve rebuild.

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.