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Siemens Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return - 2-Way NPT Connection Zone Valves
Siemens2-Way NPT Connection Zone Valves

Siemens Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return

The Siemens Hydronic Zone Valve (SKU 3G-OTH-69699) is a 2-way NPT connection zone valve with a 1.6 Cv flow rate. It features a 1/2 in Female NPT connection, is non-spring return, normally closed, and operates with a…

SKU 3G-OTH-69699

Also listed as: 25902006 · 259 02006

Brand
Siemens
Item
Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return
Category
2-Way NPT Connection Zone Valves
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Technical Specifications

Siemens
Manufacturer Part Number
259-02006
Type
2-Way, Non-Spring Return, NC, Electric
Female NPT
1/2 in
Actuator Voltage
24V AC

Technical Documents

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Siemens Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The Siemens Hydronic Zone Valve (SKU 3G-OTH-69699) is a 2-way NPT connection zone valve with a 1.6 Cv flow rate. It features a 1/2 in Female NPT connection, is non-spring return, normally closed, and operates with a 24V AC actuator (MPN 259-02006).

Frequently Asked Questions

What is a Siemens 259-02006 hydronic zone valve used for?

The Siemens 259-02006 is a 2-way, normally closed, non-spring return zone valve used in hydronic heating and cooling systems to regulate water flow. It is commonly applied in commercial HVAC zoning, fan-coil units, and radiant heating loops where precise on/off or modulating control is needed.

What are the specifications of the Siemens 259-02006 zone valve?

The Siemens 259-02006 is a 2-way, non-spring return, normally closed electric zone valve with a 1.6 Cv flow rate. It has a 1/2 in female NPT connection and requires a 24V AC actuator. The valve body is brass, and it is designed for hydronic applications up to 1.5 bar and 850 °C.

Where to buy a Siemens 259-02006 zone valve worldwide?

3G Electric supplies the Siemens 259-02006 hydronic zone valve to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this Siemens valve.

How to install a Siemens 259-02006 zone valve?

Install the Siemens 259-02006 valve with the flow arrow pointing in the correct direction. Use thread sealant on the 1/2 in female NPT connections and tighten to manufacturer torque specs. Wire the 24V AC actuator per the wiring diagram, ensuring the valve is normally closed when de-energized.

Used in

Common applications for Siemens
District cooling plants — LME73 + RWF55 for condenser-water modulation
Inflight catering and food-processing steam boilers — LMG22 with SQN90 air-fuel cross-damper
Hospital steam-plant redundancy — LME41 with QRA2 UV flame detection for dual-fuel boilers
Semiconductor fab process heat — LME23 and SKP55 gas valves on hot-oil heater skids
Container-terminal reefer-deck heating — LMG22 retrofit onto legacy burner racks

Siemens 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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Hydronic Zone Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02008)
Siemens
Hydronic Zone Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02008)
Hydronic Zone Valve: 1 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02004)
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Hydronic Zone Valve: 1 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02004)
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02002)
Siemens
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02002)
Hydronic Zone Valve: 4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02041)
Siemens
Hydronic Zone Valve: 4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02041)
Hydronic Zone Valve: 0.4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02030)
Siemens
Hydronic Zone Valve: 0.4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02030)
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02032)
Siemens
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02032)

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Pneumatic Control Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NC, Pneumatic (MPN 256-02008)
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Pneumatic Control Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NC, Pneumatic (MPN 256-02008)
Pneumatic Control Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NO, Pneumatic (MPN 257-02038)
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Pneumatic Control Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NO, Pneumatic (MPN 257-02038)
Pneumatic Control Valve: 6.3 Cv Flow Rate, 2-Way, 3/4 in Female NPT, Spring Return, NO, Pneumatic (MPN 257-02044)
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Pneumatic Control Valve: 6.3 Cv Flow Rate, 2-Way, 3/4 in Female NPT, Spring Return, NO, Pneumatic (MPN 257-02044)
Pneumatic Control Valve: 4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NO, Spring Return (MPN 257-02041)
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Pneumatic Control Valve: 4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NO, Spring Return (MPN 257-02041)
Zone Valve: 4 Cv Flow Rate, 2-Way, 1/2 in Female Union NPT/1/2 in Male Union NPT, Spring Return, NO (MPN 257-02042)
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Zone Valve: 4 Cv Flow Rate, 2-Way, 1/2 in Female Union NPT/1/2 in Male Union NPT, Spring Return, NO (MPN 257-02042)
Zone Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female Union NPT/1/2 in Male Union NPT, Spring Return (MPN 257-02039)
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Zone Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female Union NPT/1/2 in Male Union NPT, Spring Return (MPN 257-02039)
Hydronic Zone Valve: 0.4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02000)
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Hydronic Zone Valve: 0.4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02000)
Hydronic Zone Valve: 0.4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 254-01115)
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Hydronic Zone Valve: 0.4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 254-01115)