Description
The Parker-Sporlan 101758 is a two-way, normally open, spring return, two-position actuated ball valve assembly engineered for demanding HVAC and hydronic control applications. Built around a forged brass body with stainless steel trim, this valve delivers reliable, long-service-life performance in commercial and industrial systems where precise flow control is essential.
Key Features
- Two-way, normally open (N.O.) configuration with spring return for fail-safe operation
- 1-1/2″ NPT end connections for straightforward installation
- 46.8 Cv flow coefficient with equal percentage flow characteristic for accurate modulation
- Dual-voltage actuator: 24Vac / 24Vdc compatible
- Two-position (on/off) actuation for simple open/close control
- Forged brass body construction for superior pressure and corrosion resistance
- Stainless steel trim for extended durability and reduced maintenance
- Integrated thermal barrier between valve body and actuator to protect electronics from high-temperature media
Construction & Design
The forged brass body provides a robust, leak-resistant housing capable of withstanding the pressures and temperatures common in commercial HVAC water and glycol systems. Stainless steel trim components resist corrosion and wear, ensuring consistent seating and shutoff over the valve’s service life. The thermal barrier isolates the actuator from elevated fluid temperatures, protecting internal electronics and extending actuator longevity.
Actuator & Control
The integrated actuator operates on 24Vac or 24Vdc power, making it compatible with virtually all standard HVAC control panels and building automation systems. The spring return mechanism ensures the valve returns to its normally open position upon loss of power, providing a critical fail-safe function for system protection. Two-position control simplifies wiring and integration with on/off control strategies.
Flow Characteristics
With a 46.8 Cv rating and equal percentage flow characteristic, the Parker-Sporlan 101758 delivers precise, repeatable flow control across a wide range of system conditions. The equal percentage curve provides finer control at low flow rates and progressively greater flow at higher valve positions — ideal for variable-flow hydronic and chilled water systems.
Typical Applications
- Commercial HVAC chilled and hot water systems
- Fan coil unit and air handling unit control
- Hydronic heating and cooling distribution
- Building automation and BAS-integrated control systems
- Industrial process fluid control
Specifications
- SKU: 101758
- Brand: Parker-Sporlan
- Valve Type: 2-Way Ball Valve Assembly
- Normally Open (N.O.) with Spring Return
- Connection Size: 1-1/2″ NPT
- Flow Coefficient (Cv): 46.8
- Flow Characteristic: Equal Percentage
- Actuator Voltage: 24Vac / 24Vdc
- Actuation Type: Two-Position (On/Off)
- Body Material: Forged Brass
- Trim Material: Stainless Steel
- Thermal Barrier: Included
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