Same-day dispatch across Singapore on in-stock parts — plus worldwide shipping to 80+ countries

3G Electric
Siemens Hydronic Zone Valve: 1 Cv Flow Rate - 2-Way NPT Connection Zone Valves
Siemens2-Way NPT Connection Zone Valves

Siemens Hydronic Zone Valve: 1 Cv Flow Rate

The Siemens 259-02004 is a 2-way, 1/2 in female NPT connection zone valve with a 1 Cv flow rate, designed for hydronic systems. It features a non-spring return, normally closed (NC) electric actuator operating at 24V…

SKU 3G-OTH-69776

Brand
Siemens
Item
Hydronic Zone Valve: 1 Cv Flow Rate
Category
2-Way NPT Connection Zone Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

Siemens
Brand
SIEMENS
Actuator Voltage
24V AC
Manufacturer Part Number
259-02004
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The Siemens 259-02004 is a 2-way, 1/2 in female NPT connection zone valve with a 1 Cv flow rate, designed for hydronic systems. It features a non-spring return, normally closed (NC) electric actuator operating at 24V AC. This valve is part of Siemens' hydronic zone valve product line.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Similar products

Matched by specification & description
Hydronic Zone Valve: 1 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 254-01119). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 254-01119; Brand: SIEMENS.
Siemens
Hydronic Zone Valve: 1 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 254-01119). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 254-01119; Brand: SIEMENS.
Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 254-01121). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 254-01121; Brand: SIEMENS.
Siemens
Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 254-01121). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 254-01121; Brand: SIEMENS.
Hydronic Zone Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02038). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02038; Brand: SIEMENS.
Siemens
Hydronic Zone Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02038). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02038; Brand: SIEMENS.
Siemens
Siemens
HVAC Zone Valve: 40 Cv Flow Rate, 2-Way, 2 in Female NPT, Spring Return, NC, Proportional Signal (MPN 291-03188). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 291-03188; Brand: SIEMENS.
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). Key specifications — Manufacturer Part Number: 257-02039; Brand: SIEMENS.
Siemens
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). Key specifications — Manufacturer Part Number: 257-02039; Brand: SIEMENS.
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). Key specifications — Manufacturer Part Number: 257-02042; Brand: SIEMENS.
Siemens
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). Key specifications — Manufacturer Part Number: 257-02042; Brand: SIEMENS.

More from Siemens

View all Siemens parts
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 254-01117). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 254-01117; Brand: SIEMENS.
Siemens
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 254-01117). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 254-01117; Brand: SIEMENS.
Threaded Globe Valve: 1 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NO, On/Off Signal (MPN 243-00210). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 243-00210; Brand: SIEMENS.
Siemens
Threaded Globe Valve: 1 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NO, On/Off Signal (MPN 243-00210). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 243-00210; Brand: SIEMENS.
Threaded Globe Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NO, On/Off Signal (MPN 243-00211). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 243-00211; Brand: SIEMENS.
Siemens
Threaded Globe Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NO, On/Off Signal (MPN 243-00211). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 243-00211; Brand: SIEMENS.
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02002). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02002; Brand: SIEMENS.
Siemens
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02002). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02002; Brand: SIEMENS.
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02032). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02032; Brand: SIEMENS.
Siemens
Hydronic Zone Valve: 0.63 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NO, Electric (MPN 259-02032). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02032; Brand: SIEMENS.
Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02006). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02006; Brand: SIEMENS.
Siemens
Hydronic Zone Valve: 1.6 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02006). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02006; Brand: SIEMENS.
Pneumatic Control Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NC, Pneumatic (MPN 256-02008). Key specifications — Manufacturer Part Number: 256-02008; Brand: SIEMENS.
Siemens
Pneumatic Control Valve: 2.5 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Spring Return, NC, Pneumatic (MPN 256-02008). Key specifications — Manufacturer Part Number: 256-02008; Brand: SIEMENS.
Hydronic Zone Valve: 0.4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02000). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02000; Brand: SIEMENS.
Siemens
Hydronic Zone Valve: 0.4 Cv Flow Rate, 2-Way, 1/2 in Female NPT, Non-Spring Return, NC, Electric (MPN 259-02000). Key specifications — Actuator Voltage: 24V AC; Manufacturer Part Number: 259-02000; Brand: SIEMENS.