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

The Siemens Hydronic Zone Valve is a 2-way, 1/2 in Female NPT connection zone valve with a 1 Cv flow rate. It features a non-spring return, normally open (NO) electric actuator operating at 24V AC (MPN 259-02034).

SKU 3G-OTH-69406

Also listed as: 25902034 · 259 02034

Brand
Siemens
Item
Hydronic Zone Valve: 1 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return
Category
2-Way NPT Connection Zone Valves
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

Siemens
Manufacturer Part Number
259-02034
Type
2-Way, Non-Spring Return, NO, 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 is a 2-way, 1/2 in Female NPT connection zone valve with a 1 Cv flow rate. It features a non-spring return, normally open (NO) electric actuator operating at 24V AC (MPN 259-02034).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is a Siemens hydronic zone valve used for?

A Siemens hydronic zone valve controls water flow in HVAC heating and cooling systems. This 2-way, normally open, non-spring return model (MPN 259-02034) regulates flow to individual zones, enabling precise temperature control in commercial and industrial buildings.

What are the specifications of the Siemens 259-02034 zone valve?

The Siemens 259-02034 is a 2-way hydronic zone valve with a 1/2 in female NPT connection, 1 Cv flow rate, and a 24V AC electric actuator. It is non-spring return and normally open (NO), designed for reliable on/off control in hydronic systems.

Where to buy Siemens zone valve 259-02034 worldwide?

3G Electric supplies the Siemens 259-02034 hydronic zone valve 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 genuine Siemens part.

How to install a Siemens 2-way zone valve?

Install the Siemens 259-02034 zone valve with the flow arrow pointing in the correct direction. Connect the 1/2 in female NPT ports using compatible pipe sealant. Wire the 24V AC actuator per the wiring diagram, ensuring the normally open (NO) configuration matches your system's fail-safe requirements.

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, NO, Electric (MPN 259-02038)
Siemens
Hydronic Zone Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02038)
Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02036)
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Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02036)
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: 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: 1 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02004)
Siemens
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: 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)

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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: 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: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02006)
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Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02006)
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)