10" x 10" Universal Air Pressure Sensing Switch

Product Overview

The SUPCO NS2000031 Universal Air Pressure Switch is a compact, multi-application pressure sensing device designed for use in HVAC and air handling systems. This universal replacement switch features a small footprint and adjustable calibration, allowing it to replace a wide range of OEM air pressure switches in furnaces, boilers, and ventilation equipment. Manufactured by Sealed Unit Parts Co., Inc. in the United States, it provides reliable, repeatable pressure response and long-term operational stability in professional installations.

Technical Specifications

• Manufacturer: SUPCO (Sealed Unit Parts Co., Inc.)
• Model Number: NS2000031
• Description: Universal Air Pressure Sensing Switch
• Reference Number: 1993302
• Type: Differential air pressure switch – universal application
• Dimensions: 10 in x 10 in (nominal footprint)
• Function: Senses differential or static air pressure for equipment safety and operational control
• Configuration: Single-pole, single-throw (SPST) or single-pole, double-throw (SPDT) depending on wiring configuration
• Adjustment Range: Factory set or field adjustable pressure settings depending on system requirements
• Port Configuration: Two pressure ports (high and low) for tubing connection
• Mounting Style: Universal small-footprint design for replacement of multiple OEM configurations
• Material: Molded polymer body with sealed internal diaphragm
• Electrical Rating: Standard low-voltage HVAC control circuit compatibility
• Operating Pressure Range: Application-dependent – compatible with standard furnace and air handler pressure requirements
• Temperature Range: Suitable for typical HVAC operating environments
• Application:
  • Forced air furnaces and boilers
  • Ventilation and air handling units
  • Combustion air proving and draft control systems
  • General HVAC safety interlock systems
• Compliance: Manufactured under quality control standards consistent with U.S. HVAC industry requirements
• Country of Origin: United States
• Design Features:
  • Universal footprint replaces hundreds of small-format switches
  • Compact and lightweight design for simplified mounting
  • Field-adjustable pressure calibration
• Installation: Mount directly to existing equipment or panel using standard fasteners; connect via 1/4 in tubing to pressure source
• Serviceability: Replaceable field component for professional HVAC maintenance and repair

Summary

The SUPCO NS2000031 Universal Air Pressure Switch is a 10" x 10" compact pressure sensing device engineered to replace a wide range of OEM air switches in HVAC systems. Made in the United States by Sealed Unit Parts Co., Inc., it provides consistent differential pressure sensing and universal compatibility for professional air handling and combustion control applications.