Source1 2919387021 Bullet Orifice 0.051

Product Description

The Source1 2919387021 is a bullet orifice designed to meter the flow of refrigerant through a coil system. HVAC technicians and refrigeration service professionals rely on bullet orifices as fixed metering devices in split systems and packaged units. The orifice restricts refrigerant flow to a precise rate, creating the pressure drop needed for the refrigerant to expand and absorb heat effectively. This metering action is a core function in any vapor-compression refrigeration cycle, making the orifice a critical component for proper system performance and efficiency. The 2919387021 carries an orifice size of 0.051, which corresponds to a specific refrigerant flow rate matched to the capacity and design of the indoor coil it serves. Selecting the correct orifice size is essential. An orifice that is too large will allow excess refrigerant flow, causing flooding of the evaporator and reduced system efficiency. An orifice that is too small will starve the coil, leading to poor cooling capacity and potential compressor damage from liquid slugging or overheating. Bullet orifices are commonly used in residential and light commercial HVAC systems as a simple, low-cost alternative to thermostatic expansion valves. They contain no moving parts, which makes them durable and reliable under normal operating conditions. Installation is straightforward and requires no external sensing bulbs or equalizer lines. Note that U series and H series coils are not compatible with this orifice. Technicians should always verify coil compatibility before installation to ensure correct refrigerant metering and system operation. This orifice is a direct replacement part sourced under the Source1 brand, which is a trusted supplier of HVAC replacement components.

• Fixed orifice size of 0.051 for precise refrigerant metering
• Bullet-style design with built-in checking action to control refrigerant flow direction
• Not compatible with U series or H series coils — verify coil compatibility before installation

Product Highlights

The Source1 2919387021 bullet orifice provides reliable, fixed-rate refrigerant metering for compatible HVAC coil systems. Its simple, no-moving-parts design makes it a durable and dependable replacement component for residential and light commercial refrigerant circuits.

Product Information

Standard Information

• Brand: SOURCE1
• Manufacturer Part Number: 2919387021

Technical Specifications

• Orifice Size: 0.051
• Shipping Weight: 0.01 pounds
• Shipping Width: 0.20 inches
• Shipping Length: 0.50 inches
• Shipping Height: 0.30 inches