
Dwyer Instruments 1996-20 Pressure Switch
The Dwyer Instruments 1996-20 Pressure Switch is a high-performance, compact solution engineered for precise pressure monitoring in gas-fired furnaces and industrial combustion equipment. This gas pressure switch utilizes a sensitive silicone diaphragm to detect pressure changes in the 4 to 20" w.c. range with high repeatability. Designed for versatile integration, the 1996-20 features a dual-threaded bottom connection that provides both 1/8" female NPT and 1/4" male NPT options, allowing for direct pipe nipple or coupling installation. With a rugged SPDT switch rated for 15 A at 120-480 VAC, this unit excels as a high or low gas pressure interlock, ensuring critical safety cutoffs for air, natural and manufactured gas, and LP gas systems. The internal screw adjustment and visible set-point/on-off indicators streamline field calibration and troubleshooting for technicians managing HVAC gas pressure interlocks.
- Dual Connection Ports: Integrated 1/8" female and 1/4" male NPT threads simplify gas pressure switch installation across various manifold configurations.
- Multi-Fuel Compatibility: Engineered for use with natural gas, LP, and air, providing a single-part solution for diverse heating applications.
- Visible Set-Point: Clear internal indicators allow for rapid adjustment and status verification in high-demand environments.
- High Electrical Capacity: The 15 A SPDT contact handles substantial loads without the need for additional relays.
- Compact Footprint: Designed specifically for OEM and retrofit projects where cabinet space is at a premium.
Common Questions
How do you adjust the set-point on the Dwyer 1996nd?
The set-point is adjusted via an internal screw located inside the conduit enclosure. Use the visible scale to match your required pressure switch set-point between 4 and 20 inches of water column.
What is the proper mounting orientation for this switch?
For optimal accuracy, the switch should be mounted with the diaphragm in a horizontal position and the process connection at the bottom.
Can this switch be used with propane?
Yes, the 1996-20 is fully compatible with LP gas, along with natural and manufactured gases and clean, dry air.
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.
Original: $190.04
-65%$190.04
$66.51Dwyer Instruments 1996-20 Pressure Switch
The Dwyer Instruments 1996-20 Pressure Switch is a high-performance, compact solution engineered for precise pressure monitoring in gas-fired furnaces and industrial combustion equipment. This gas pressure switch utilizes a sensitive silicone diaphragm to detect pressure changes in the 4 to 20" w.c. range with high repeatability. Designed for versatile integration, the 1996-20 features a dual-threaded bottom connection that provides both 1/8" female NPT and 1/4" male NPT options, allowing for direct pipe nipple or coupling installation. With a rugged SPDT switch rated for 15 A at 120-480 VAC, this unit excels as a high or low gas pressure interlock, ensuring critical safety cutoffs for air, natural and manufactured gas, and LP gas systems. The internal screw adjustment and visible set-point/on-off indicators streamline field calibration and troubleshooting for technicians managing HVAC gas pressure interlocks.
- Dual Connection Ports: Integrated 1/8" female and 1/4" male NPT threads simplify gas pressure switch installation across various manifold configurations.
- Multi-Fuel Compatibility: Engineered for use with natural gas, LP, and air, providing a single-part solution for diverse heating applications.
- Visible Set-Point: Clear internal indicators allow for rapid adjustment and status verification in high-demand environments.
- High Electrical Capacity: The 15 A SPDT contact handles substantial loads without the need for additional relays.
- Compact Footprint: Designed specifically for OEM and retrofit projects where cabinet space is at a premium.
Common Questions
How do you adjust the set-point on the Dwyer 1996nd?
The set-point is adjusted via an internal screw located inside the conduit enclosure. Use the visible scale to match your required pressure switch set-point between 4 and 20 inches of water column.
What is the proper mounting orientation for this switch?
For optimal accuracy, the switch should be mounted with the diaphragm in a horizontal position and the process connection at the bottom.
Can this switch be used with propane?
Yes, the 1996-20 is fully compatible with LP gas, along with natural and manufactured gases and clean, dry air.
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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Dwyer Instruments 1996-20 Pressure Switch is a high-performance, compact solution engineered for precise pressure monitoring in gas-fired furnaces and industrial combustion equipment. This gas pressure switch utilizes a sensitive silicone diaphragm to detect pressure changes in the 4 to 20" w.c. range with high repeatability. Designed for versatile integration, the 1996-20 features a dual-threaded bottom connection that provides both 1/8" female NPT and 1/4" male NPT options, allowing for direct pipe nipple or coupling installation. With a rugged SPDT switch rated for 15 A at 120-480 VAC, this unit excels as a high or low gas pressure interlock, ensuring critical safety cutoffs for air, natural and manufactured gas, and LP gas systems. The internal screw adjustment and visible set-point/on-off indicators streamline field calibration and troubleshooting for technicians managing HVAC gas pressure interlocks.
- Dual Connection Ports: Integrated 1/8" female and 1/4" male NPT threads simplify gas pressure switch installation across various manifold configurations.
- Multi-Fuel Compatibility: Engineered for use with natural gas, LP, and air, providing a single-part solution for diverse heating applications.
- Visible Set-Point: Clear internal indicators allow for rapid adjustment and status verification in high-demand environments.
- High Electrical Capacity: The 15 A SPDT contact handles substantial loads without the need for additional relays.
- Compact Footprint: Designed specifically for OEM and retrofit projects where cabinet space is at a premium.
Common Questions
How do you adjust the set-point on the Dwyer 1996nd?
The set-point is adjusted via an internal screw located inside the conduit enclosure. Use the visible scale to match your required pressure switch set-point between 4 and 20 inches of water column.
What is the proper mounting orientation for this switch?
For optimal accuracy, the switch should be mounted with the diaphragm in a horizontal position and the process connection at the bottom.
Can this switch be used with propane?
Yes, the 1996-20 is fully compatible with LP gas, along with natural and manufactured gases and clean, dry air.
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.












