Description
Sporlan Controls 404555 — 1/2″ NPT 3-Way Actuated Ball Valve
The Sporlan Controls 404555 is a precision-engineered actuated ball valve assembly designed for demanding HVAC hydronic and process control applications. Featuring a forged brass body with stainless steel trim, this 3-way valve delivers reliable equal percentage flow characteristics in a compact 1/2″ NPT package. The integrated non-spring-return actuator accepts multiple control signal inputs, making it highly versatile for building automation and direct digital control (DDC) systems.
Key Features
- 1/2″ NPT connections for straightforward installation in standard piping systems
- 2.9 Cv flow coefficient — optimized for precise flow modulation in small-to-medium hydronic circuits
- 3-way equal percentage flow configuration for accurate, proportional flow control
- Forged brass body construction for durability and corrosion resistance
- Stainless steel trim for long service life and reliable sealing performance
- Non-spring-return actuator maintains last position on power loss
- Accepts 0–10 Vdc and 2–10 Vdc analog control signals for BAS/DDC compatibility
- 24 Vac power supply — standard low-voltage HVAC control voltage
- 4–20 mA input with integrated 500 Ohm resistor for current-loop control compatibility
- Screw terminal connections for fast, secure field wiring
Specifications
- Brand: Sporlan Controls
- SKU / Part Number: 404555
- Valve Size: 1/2″ NPT
- Cv Rating: 2.9
- Valve Configuration: 3-Way, Equal Percentage Flow
- Body Material: Forged Brass
- Trim Material: Stainless Steel
- Actuator Type: Non-Spring Return, Electric
- Control Signal: 0–10 Vdc, 2–10 Vdc
- Power Supply: 24 Vac
- Current Input: 4–20 mA with 500 Ohm resistor
- Wiring: Screw Terminal Connections
Application
The Sporlan 404555 actuated ball valve is ideal for use in chilled water, hot water, and condenser water systems where accurate, modulating flow control is required. Its compatibility with both voltage (0–10 Vdc / 2–10 Vdc) and current (4–20 mA) control signals makes it a drop-in solution for virtually any BAS or DDC controller. The non-spring-return design ensures the valve holds its last commanded position during a power interruption, providing system stability and protection.
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