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Siemens3-Way NPT Connection Zone Valves

Siemens MXG461B50-30 2-Way Spring Return NC Magnetic Valve

The Siemens Magnetic Valve: 35 Cv Flow Rate (SKU MXG461B50-30, MPN MXG461B50-30) is a 3-way NPT connection zone valve with a 2 in Union NPT port connection. It features a spring return, normally closed (NC) operation…

SKU 3G-OTH-69831

Also listed as: MXG461B5030 · MXG461B50 30

Brand
Siemens
Item
MXG461B50-30 2-Way Spring Return NC Magnetic Valve
Part Number
MXG461B50-30
Category
3-Way NPT Connection Zone Valves
Available to Order
Also known as:MXG461B50-30Siemens
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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

Compliance & shipping

Hazardous material
Not classified as hazardous
California Prop 65 warning
No warning recorded
Licence required
No licence required
Safety Data Sheet
Not available
Special shipping
Ships under standard freight

Technical Specifications

Siemens
Manufacturer Part Number
MXG461B50-30
Type
2-Way, Spring Return, NC, Floating Signal, Magnetic
Voltage
20 to 30V DC; 24V AC
For Media
Water; Water-Glycol Solution to 50%
Frequency
45 to 65 Hz
Standards
EN60730-x
Application
Chilled/Hot Water Control
Catalog Page
N/A
Valve Action
Normally Closed
Actuator Type
Magnetic
Body Material
Brass
Overall Depth
4 in
Overall Width
8-5/16 in
Spring Action
Spring Return
Stem Material
CrNi Steel
Control Signal
Floating
Overall Length
19-1/2 in
Gasket Material
CrNi Steel
Port Connection
2 in Union NPT
Actuator Voltage
20 to 30V DC
Country of Origin
Germany (subject to change)
Includes Actuator
Actuator Included
Close-Off Pressure
600 kPa Close-Off Pressure This describes the maximum pressure that these valves can withstand when they are fully closed.
Port Connection Size
2 in
Actuator Return Action
Spring Return
Installation Orientation
Vertical Preferred
Fluid Temperature - Maximum
266 °F
Fluid Temperature - Minimum
-4 °F
Operating Temperature - Maximum
45 °C
Operating Temperature - Minimum
-5 °C
Distance Between Inlet and Outlet Port
170 mm

Technical Documents

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

Product Description

The Siemens Magnetic Valve: 35 Cv Flow Rate (SKU MXG461B50-30, MPN MXG461B50-30) is a 3-way NPT connection zone valve with a 2 in Union NPT port connection. It features a spring return, normally closed (NC) operation with a floating signal, and accepts an actuator voltage of 20 to 30V DC or 24V AC.

Frequently Asked Questions

What is the Siemens MXG461B50-30 magnetic valve used for?

The Siemens MXG461B50-30 magnetic valve is a 3-way NPT connection zone valve used in HVAC and industrial fluid control systems. It regulates flow in heating, ventilation, and air conditioning applications, providing reliable on/off or floating control with a spring return for fail-safe normally closed operation.

What are the specifications of the Siemens MXG461B50-30 magnetic valve?

The Siemens MXG461B50-30 magnetic valve has a 35 Cv flow rate, 2 in Union NPT port connection, and accepts 20 to 30V DC or 24V AC actuator voltage. It is a 2-way, spring return, normally closed valve with a floating signal, manufactured by Siemens under MPN MXG461B50-30.

Where to buy the Siemens MXG461B50-30 magnetic valve worldwide?

You can source the Siemens MXG461B50-30 magnetic valve through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring the valve reaches your facility efficiently. Contact us for availability and lead time.

How to install the Siemens MXG461B50-30 magnetic valve?

Install the Siemens MXG461B50-30 magnetic valve by ensuring the 2 in Union NPT connections are properly aligned and sealed. Mount the valve in the correct flow direction, wire the actuator to a 20 to 30V DC or 24V AC floating signal source, and verify spring return operation for fail-safe NC function. Follow Siemens installation guidelines.

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
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Siemens Products

3G Electric supplies Siemens 3-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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