Spartan Valves ME-4430S Actuator
This Spartan Valves ME-4430S Actuator is a professional-grade 2-way/3-way zone valve actuator designed for reliable on-off control in hydronic systems. This model operates on 24VAC power and utilizes a 2-wire spring return mechanism that triggers a fail-safe stem-up (Normally Open) position upon power loss. Engineered for durability, the ME-4430S features a high-strength, glass-filled nylon composite housing and an integrated insulating collar that protects the internal gear motor from valve body heat. Unlike the base model, the "S" variant includes a built-in SPDT end switch rated for 250V 5A, allowing for auxiliary equipment interlocking such as pump or boiler sequencing. It is compatible with Spartan’s full line of V200 and V300 valve bodies, supporting applications involving hot water, chilled water, low-pressure steam, and up to 50% glycol. The M30 quick-disconnect thumbnut enables fast, tool-free installation and servicing in the field, while the dial-type position indicator provides instant visual confirmation of the valve state.
Key Benefits- Fail-Safe Operation: The spring return mechanism ensures the valve returns to the Normally Open (Stem Up) position during power disruptions for system safety.
- Integrated End Switch: Includes a factory-installed SPDT end switch to simplify logic control for pumps and fans without extra relays.
- Thermal Protection: A dedicated insulating collar prevents high media temperatures from degrading the electrical components.
- Universal Compatibility: Fits all Spartan zone valve bodies (1/2" to 1") using the standard M30 x 1.5 connection.
- Quick Installation: The M30 manual thumbnut allows for rapid mounting and replacement without specialized tools.
Is the ME-4430S suitable for steam applications?
Yes, it is rated for use with low-pressure steam systems up to 15 psig, as well as hot and chilled water systems.
What is the difference between the ME-4430W and the ME-4430S?
The ME-4430S includes an internal end switch for auxiliary signaling, whereas the "W" version typically utilizes a standard wire harness without the additional switch output.
Can this actuator be mounted upside down?
No. For optimal performance and to prevent moisture accumulation, the actuator should be mounted vertically or horizontally, but never inverted below the valve body.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $158.01
-65%$158.01
$55.30Spartan Valves ME-4430S Actuator
This Spartan Valves ME-4430S Actuator is a professional-grade 2-way/3-way zone valve actuator designed for reliable on-off control in hydronic systems. This model operates on 24VAC power and utilizes a 2-wire spring return mechanism that triggers a fail-safe stem-up (Normally Open) position upon power loss. Engineered for durability, the ME-4430S features a high-strength, glass-filled nylon composite housing and an integrated insulating collar that protects the internal gear motor from valve body heat. Unlike the base model, the "S" variant includes a built-in SPDT end switch rated for 250V 5A, allowing for auxiliary equipment interlocking such as pump or boiler sequencing. It is compatible with Spartan’s full line of V200 and V300 valve bodies, supporting applications involving hot water, chilled water, low-pressure steam, and up to 50% glycol. The M30 quick-disconnect thumbnut enables fast, tool-free installation and servicing in the field, while the dial-type position indicator provides instant visual confirmation of the valve state.
Key Benefits- Fail-Safe Operation: The spring return mechanism ensures the valve returns to the Normally Open (Stem Up) position during power disruptions for system safety.
- Integrated End Switch: Includes a factory-installed SPDT end switch to simplify logic control for pumps and fans without extra relays.
- Thermal Protection: A dedicated insulating collar prevents high media temperatures from degrading the electrical components.
- Universal Compatibility: Fits all Spartan zone valve bodies (1/2" to 1") using the standard M30 x 1.5 connection.
- Quick Installation: The M30 manual thumbnut allows for rapid mounting and replacement without specialized tools.
Is the ME-4430S suitable for steam applications?
Yes, it is rated for use with low-pressure steam systems up to 15 psig, as well as hot and chilled water systems.
What is the difference between the ME-4430W and the ME-4430S?
The ME-4430S includes an internal end switch for auxiliary signaling, whereas the "W" version typically utilizes a standard wire harness without the additional switch output.
Can this actuator be mounted upside down?
No. For optimal performance and to prevent moisture accumulation, the actuator should be mounted vertically or horizontally, but never inverted below the valve body.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
This Spartan Valves ME-4430S Actuator is a professional-grade 2-way/3-way zone valve actuator designed for reliable on-off control in hydronic systems. This model operates on 24VAC power and utilizes a 2-wire spring return mechanism that triggers a fail-safe stem-up (Normally Open) position upon power loss. Engineered for durability, the ME-4430S features a high-strength, glass-filled nylon composite housing and an integrated insulating collar that protects the internal gear motor from valve body heat. Unlike the base model, the "S" variant includes a built-in SPDT end switch rated for 250V 5A, allowing for auxiliary equipment interlocking such as pump or boiler sequencing. It is compatible with Spartan’s full line of V200 and V300 valve bodies, supporting applications involving hot water, chilled water, low-pressure steam, and up to 50% glycol. The M30 quick-disconnect thumbnut enables fast, tool-free installation and servicing in the field, while the dial-type position indicator provides instant visual confirmation of the valve state.
Key Benefits- Fail-Safe Operation: The spring return mechanism ensures the valve returns to the Normally Open (Stem Up) position during power disruptions for system safety.
- Integrated End Switch: Includes a factory-installed SPDT end switch to simplify logic control for pumps and fans without extra relays.
- Thermal Protection: A dedicated insulating collar prevents high media temperatures from degrading the electrical components.
- Universal Compatibility: Fits all Spartan zone valve bodies (1/2" to 1") using the standard M30 x 1.5 connection.
- Quick Installation: The M30 manual thumbnut allows for rapid mounting and replacement without specialized tools.
Is the ME-4430S suitable for steam applications?
Yes, it is rated for use with low-pressure steam systems up to 15 psig, as well as hot and chilled water systems.
What is the difference between the ME-4430W and the ME-4430S?
The ME-4430S includes an internal end switch for auxiliary signaling, whereas the "W" version typically utilizes a standard wire harness without the additional switch output.
Can this actuator be mounted upside down?
No. For optimal performance and to prevent moisture accumulation, the actuator should be mounted vertically or horizontally, but never inverted below the valve body.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
