Sensus 143-82-150-00 Diaphragm

The Sensus 143-82-150-00 diaphragm is a critical replacement component engineered specifically for the Sensus 243-8 commercial gas regulator series. Built to handle low-to-intermediate pressure fluctuations, this nitrile rubber diaphragm ensures precise lock-up pressure and stable outlet pressure control across varying flow rates. In the field, technicians rely on this rebuild kit component for its chemical resistance against natural gas, propane, and butane vapors. The heavy-duty molded diaphragm construction minimizes hysteresis, preventing hunting and providing a seat-to-orifice seal that maintains safety standards in industrial and commercial meter sets. When performing regulator maintenance, installing this OEM-spec part is essential for maintaining the ANSI B109.4 performance curve of the 243-8 model. Compatibility is limited to the 243-8 large-capacity frame; ensure the diaphragm plate and housing bolts are torqued to manufacturer specifications to prevent peripheral leaks during high-load demand cycles.

• Precision Pressure Regulation: Maintains consistent WC (Water Column) settings under varying inlet pressures.
• Industrial-Grade Nitrile: Resistant to hydrocarbon degradation and environmental fatigue in commercial gas regulation applications.
• Optimized Sensitivity: Large surface area design provides the necessary force to actuate the lever assembly for immediate response to downstream demand.
• Direct OEM Fit: Eliminates alignment issues common with third-party regulator repair parts, ensuring proper sealing during the assembly of the 243-8 body.

Is the 143-82-150-00 compatible with the Sensus 143-8 service regulator?
No, this specific part number is designed exclusively for the larger 243-8 commercial series. The 143 series utilizes a smaller diameter diaphragm assembly.

What are the signs of a failing 243-8 diaphragm?
Technicians should look for erratic outlet pressures, gas venting through the relief valve, or "sluggish" response to load changes, which typically indicates stiffening or micro-perforations in the diaphragm material.

Does this diaphragm include the metal center plate?
This part number refers to the rubber diaphragm component itself. It is recommended to inspect the existing plate and stem for corrosion or pitting during the replacement process.

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.