Sensus 143-16-021-03 Red Spring

RED SPRING FOR 243-12 AND 121

Sensus 143-16-021-03 Red Spring – Replacement Regulator Spring for 243-12 & 121 Series

The Sensus 143-16-021-03 Red Spring is a genuine replacement regulator spring manufactured for use with Sensus Gas Division regulators, specifically the 243-12 and 121 series. Designed to restore accurate pressure control, this spring ensures reliable and consistent regulator performance in gas distribution and control applications.

This red-colored spring provides a pressure range of 3.5" to 6.5" water column when used in standard configurations. In certain multi-spring regulator setups, it may function as a main spring with an outlet range of 1.5" to 3.5" water column, offering flexibility for various system requirements. Built to Sensus specifications, it is ideal for maintenance, repair, and replacement of compatible regulators.

Key Features & Benefits

• Genuine Sensus Gas Division replacement part

• Designed for Sensus 243-12 and 121 series regulators

• Red spring for easy identification

• Ensures accurate and stable gas pressure regulation

• Durable construction for long-lasting performance

Specifications

• Part Number: 143-16-021-03

• Product Type: Regulator Spring

• Color: Red

• Pressure Range:

  • 3.5" to 6.5" WC (standard configuration)

  • 1.5" to 3.5" WC (as main spring in select multi-spring configurations)

• Compatible Regulator Series: 243-12, 121-12

• Compatible Inlet Sizes: 1.5", 2", 2.5"

The Sensus 143-16-021-03 Red Spring is an essential replacement component for maintaining proper pressure control and safe operation of Sensus regulators. Ideal for gas utility professionals, HVAC technicians, and maintenance personnel seeking an OEM-quality replacement part.