Description
Parker-Sporlan 475442 Two-Way Pressure Independent Control Valve Overview
The Parker-Sporlan 475442 is a high-performance Two-Way Normally Open Pressure Independent Control Valve (PICV) engineered for precise hydronic flow control in commercial HVAC systems. Featuring a 2-1/2″ NPT connection and a maximum flow capacity of 95 GPM, this valve combines flow balancing and modulating control into a single, compact assembly — eliminating the need for separate balancing valves and simplifying system commissioning.
Key Features
- Two-Way Normally Open (NO) configuration with spring return actuator for fail-safe operation
- 2-1/2″ NPT end connections for straightforward installation
- 95 GPM maximum flow rate capacity
- Equal percentage flow characteristic for precise, stable modulation across the full control range
- Pressure independent design maintains accurate flow regardless of system pressure fluctuations
- Durable brass valve body with corrosion-resistant stainless steel trim
- Spring return actuator ensures fail-safe, normally open position on loss of power
- 24Vac actuator power supply for compatibility with standard building automation and HVAC control systems
Control Signal Compatibility
- 0–10 Vdc control signal input
- 2–10 Vdc control signal input
- 4–20 mA control signal input (with integrated 500-ohm resistor included)
Construction & Design
- Brass valve body for reliable, long-service-life performance
- Stainless steel internal trim for enhanced durability and resistance to wear
- Modulating actuator with spring return for dependable fail-safe positioning
- Integrated pressure independent cartridge eliminates need for separate balancing valve
Applications
- Commercial HVAC hydronic heating and cooling systems
- Air handling units (AHUs) and fan coil units (FCUs)
- Variable flow chilled water and hot water distribution systems
- Building automation system (BAS) integration requiring analog control signals
Specifications
- SKU: 475442
- Brand: Parker-Sporlan
- Valve Type: Two-Way, Normally Open (NO)
- Connection Size: 2-1/2″ NPT
- Flow Capacity: 95 GPM
- Flow Characteristic: Equal Percentage
- Body Material: Brass
- Trim Material: Stainless Steel
- Actuator Type: Spring Return, Modulating
- Actuator Power: 24Vac
- Control Inputs: 0–10 Vdc, 2–10 Vdc, 4–20 mA (500-ohm resistor included)
- Valve Design: Pressure Independent Control Valve (PICV)
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