Siemens Hydronic Zone Valve: 0.4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return
The Siemens 259-02030 is a 2-way NPT connection zone valve with a 0.4 Cv flow rate, featuring a 1/2 in female NPT connection and a non-spring return, normally open electric actuator. It operates with a 24V AC…
SKU 3G-OTH-69339
Also listed as: 25902030 · 259 02030
Local availability & support — Singapore
- Local office
- 20 Woodlands Link #09-05, Singapore 738733
- Phone
- +65 8878 8355
- Delivery
- Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
- Payment
- Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
- Ships to
- Singapore
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Product Description
The Siemens 259-02030 is a 2-way NPT connection zone valve with a 0.4 Cv flow rate, featuring a 1/2 in female NPT connection and a non-spring return, normally open electric actuator. It operates with a 24V AC actuator voltage.
Frequently Asked Questions
What is the Siemens 259-02030 hydronic zone valve used for?
The Siemens 259-02030 is a 2-way, normally open, non-spring return zone valve used in hydronic heating and cooling systems to control water flow. It is commonly applied in commercial HVAC zoning, fan-coil units, and radiant heating loops where reliable 24V AC actuation is required.
What are the specifications of the Siemens 259-02030 zone valve?
The Siemens 259-02030 is a 2-way hydronic zone valve with a 0.4 Cv flow rate, 1/2 in female NPT connections, and a 24V AC electric actuator. It is non-spring return and normally open. The valve body is brass, and the actuator is designed for low-voltage control in HVAC systems.
Where to buy the Siemens 259-02030 zone valve worldwide?
3G Electric supplies the Siemens 259-02030 zone valve to customers worldwide. As a global industrial sourcing partner, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time; we provide genuine Siemens parts for hydronic applications.
How to install a Siemens 259-02030 zone valve?
Install the Siemens 259-02030 in the return line of a hydronic loop with flow arrow pointing toward the coil. Connect 24V AC power to the actuator terminals per wiring diagram. Ensure the valve is fully open before power-off. Use thread sealant on NPT connections and test for leaks at 1.5 bar maximum working pressure.
Used in
Common applications for SiemensSiemens Products
3G Electric supplies Siemens 2-way npt connection zone valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.
