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Siemens Pneumatic Control Valve: 6.3 Cv Flow Rate, 2-Way, 3/4 in Female NPT, Spring Return - 2-Way NPT Connection Zone Valves
Siemens2-Way NPT Connection Zone Valves

Siemens Pneumatic Control Valve: 6.3 Cv Flow Rate, 2-Way, 3/4 in Female NPT, Spring Return

The Siemens Pneumatic Control Valve (SKU 3G-OTH-69645, MPN 257-02044) is a 2-Way, Spring Return, Normally Open, Pneumatic zone valve with a 6.3 Cv flow rate and 3/4 in Female NPT connection. 3G Electric interprets…

SKU 3G-OTH-69645

Also listed as: 25702044 · 257 02044

Brand
Siemens
Item
Pneumatic Control Valve: 6.3 Cv Flow Rate, 2-Way, 3/4 in Female NPT, Spring Return
Category
2-Way NPT Connection Zone Valves
Available to Order
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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
257-02044
Type
2-Way, Spring Return, NO, Pneumatic
Female NPT
3/4 in

Technical Documents

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

Product Description

The Siemens Pneumatic Control Valve (SKU 3G-OTH-69645, MPN 257-02044) is a 2-Way, Spring Return, Normally Open, Pneumatic zone valve with a 6.3 Cv flow rate and 3/4 in Female NPT connection. 3G Electric interprets this demand and delivers the genuine Siemens valve, backed by our specialist depth in controls across 14 industrial departments.

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 the Siemens 257-02044 pneumatic control valve used for?

The Siemens 257-02044 is a 2-way, spring return, normally open pneumatic control valve used in HVAC and industrial fluid systems to regulate flow. It is commonly applied in zone control, hot water, and chilled water loops where reliable shutoff and modulating control are required.

What are the specifications of the Siemens 257-02044 valve?

The Siemens 257-02044 is a 2-way, spring return, normally open pneumatic valve with a 6.3 Cv flow rate. It has a 3/4 in female NPT connection and is pneumatically actuated. The valve body is designed for zone control applications and is manufactured by Siemens under MPN 257-02044.

Where to buy the Siemens 257-02044 valve worldwide?

3G Electric supplies the Siemens 257-02044 pneumatic control valve worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this Siemens valve to any international destination.

How to install a Siemens pneumatic control valve?

Install the Siemens 257-02044 valve with the flow arrow pointing in the correct direction. Use thread sealant on the 3/4 in female NPT connections and ensure the pneumatic actuator receives clean, dry air at the specified pressure. Mount the valve in a horizontal or vertical position per Siemens guidelines and test for leaks before commissioning.

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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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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