Siemens Building Technology 243-00211 Valve Assembly
The Siemens 243-00211 Valve Assembly is a high-performance 2-way normally open solution designed for hydronic system control. Featuring a 1/2 inch NPT threaded connection and a reliable 2.5 Cv linear flow rate, this assembly is engineered for precision in hot or chilled water applications. The unit utilizes a durable brass body with brass trim and a stainless steel stem, ensuring longevity in demanding commercial and residential environments. Powered by a 24Vac spring return actuator, the valve provides a failsafe open position during power loss, making it ideal for baseboard radiation, fan coil units, and VAV terminal reheats. The direct-coupled design allows for tool-free installation on a universal bonnet, while the ANSI Class III leakage rating ensures system efficiency. This spring return zone valve is rated for media temperatures ranging from 34°F to 230°F, providing the versatility required by veteran HVAC contractors for diverse mechanical layouts.
Key Benefits- Fail-Safe Operation: The normally open spring return mechanism ensures consistent flow for freeze protection or system safety during power failures.
- Rugged Construction: Robust brass trim and an EPDM O-ring packing facilitate a reliable seal and resistance to scale buildup.
- Efficient Installation: Features a direct-coupled actuator and NPT threaded ports to reduce field labor and simplify replacement.
- Precise Flow Control: The 2.5 Cv rating and linear characteristic provide stable temperature regulation in small-bore hydronic loops.
What is the fail position of the Siemens 243-00211?
This assembly is normally open (NO), meaning the valve stays open upon a loss of power via its internal spring return mechanism.
Can this valve be used with glycol?
Yes, the brass body and EPDM seals are compatible with water and water-glycol mixtures containing up to 50% concentration.
Is a higher voltage actuator compatible with this body?
While the 243-00211 assembly includes a 24Vac actuator, the 599 series valve body can accept 120Vac SFA series actuators if a field retrofit is required for specific electrical schedules.
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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Shipping & Returns
Description
The Siemens 243-00211 Valve Assembly is a high-performance 2-way normally open solution designed for hydronic system control. Featuring a 1/2 inch NPT threaded connection and a reliable 2.5 Cv linear flow rate, this assembly is engineered for precision in hot or chilled water applications. The unit utilizes a durable brass body with brass trim and a stainless steel stem, ensuring longevity in demanding commercial and residential environments. Powered by a 24Vac spring return actuator, the valve provides a failsafe open position during power loss, making it ideal for baseboard radiation, fan coil units, and VAV terminal reheats. The direct-coupled design allows for tool-free installation on a universal bonnet, while the ANSI Class III leakage rating ensures system efficiency. This spring return zone valve is rated for media temperatures ranging from 34°F to 230°F, providing the versatility required by veteran HVAC contractors for diverse mechanical layouts.
Key Benefits- Fail-Safe Operation: The normally open spring return mechanism ensures consistent flow for freeze protection or system safety during power failures.
- Rugged Construction: Robust brass trim and an EPDM O-ring packing facilitate a reliable seal and resistance to scale buildup.
- Efficient Installation: Features a direct-coupled actuator and NPT threaded ports to reduce field labor and simplify replacement.
- Precise Flow Control: The 2.5 Cv rating and linear characteristic provide stable temperature regulation in small-bore hydronic loops.
What is the fail position of the Siemens 243-00211?
This assembly is normally open (NO), meaning the valve stays open upon a loss of power via its internal spring return mechanism.
Can this valve be used with glycol?
Yes, the brass body and EPDM seals are compatible with water and water-glycol mixtures containing up to 50% concentration.
Is a higher voltage actuator compatible with this body?
While the 243-00211 assembly includes a 24Vac actuator, the 599 series valve body can accept 120Vac SFA series actuators if a field retrofit is required for specific electrical schedules.
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.
