Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

Image not available
SiemensPressure-Actuated Water Regulating Valves

Siemens MVL661.20-2.5 Pressure-Actuated Water Regulating Valve

The SIEMENS MVL661.20-2.5 is a pressure-actuated water regulating valve with a steel body, designed for use with R-744 refrigerant. It has a maximum flow capacity of 8 cubic meters per hour and a 3/4-inch connection…

SKU 3G-OTH-72913

Also listed as: MVL6612025 · MVL661 20 2 5 · MVL661-20-2-5

Brand
Siemens
Item
MVL661.20-2.5 Pressure-Actuated Water Regulating Valve
Category
Pressure-Actuated Water Regulating Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

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

Technical Specifications

Siemens
Manufacturer Part Number
MVL661.20-2.5
Body Material
Steel
Country of Origin
Germany (subject to change)
For Refrigerant Type
R-744

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 MVL661.20-2.5 is a pressure-actuated water regulating valve with a steel body, designed for use with R-744 refrigerant. It has a maximum flow capacity of 8 cubic meters per hour and a 3/4-inch connection size.

Frequently Asked Questions

What is the SIEMENS MVL661.20-2.5 refrigeration valve used for?

The SIEMENS MVL661.20-2.5 is a pressure-actuated water regulating valve used in industrial refrigeration systems with R-744 (CO2) refrigerant. It modulates water flow to maintain stable condensing pressure, improving system efficiency in cold storage, food processing, and HVAC applications.

What are the specifications of the SIEMENS MVL661.20-2.5?

The SIEMENS MVL661.20-2.5 has a steel body, a maximum flow capacity of 8 cu m/hr, and a 3/4 in connection size. It is designed for R-744 refrigerant and operates as a pressure-actuated water regulating valve. The manufacturer part number is MVL661.20-2.5.

Where to buy the SIEMENS MVL661.20-2.5 worldwide?

3G Electric supplies the SIEMENS MVL661.20-2.5 worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this valve to any country.

How to install the SIEMENS MVL661.20-2.5 water regulating valve?

Install the SIEMENS MVL661.20-2.5 in the water line with the 3/4 in connection oriented per flow direction arrows. Ensure the valve is mounted upright, free of debris, and the pressure-sensing line is connected to the R-744 refrigerant circuit. Follow standard refrigeration piping practices and check for leaks after installation.

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 pressure-actuated water regulating 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

Compatible alternatives & equivalents

Cross-referenced by specification & description
Two-way pressure-actuated water regulating valve with a brass body. Opening pressure range 0 psi to 20 psi. Connection size 3/8 in female sweat. For use with R-404A refrigerant. Used in refrigeration systems to modulate condenser water flow based on refrigerant pressure
Parker
Two-way pressure-actuated water regulating valve with a brass body. Opening pressure range 0 psi to 20 psi. Connection size 3/8 in female sweat. For use with R-404A refrigerant. Used in refrigeration systems to modulate condenser water flow based on refrigerant pressure
This Parker pressure-actuated water regulating valve features a three-way configuration with a brass body and 3/8 in female sweat connections. It has an opening pressure range of 0 psi to 60 psi and is designed for use with R-404A refrigerant. Typical applications include modulating condenser water flow in refrigeration systems to maintain proper head pressure
Parker
This Parker pressure-actuated water regulating valve features a three-way configuration with a brass body and 3/8 in female sweat connections. It has an opening pressure range of 0 psi to 60 psi and is designed for use with R-404A refrigerant. Typical applications include modulating condenser water flow in refrigeration systems to maintain proper head pressure
Steel-bodied pressure-compensated flow control valve with rotary knob adjustment. Maintains constant flow rate despite pressure variations. Connections are #8 SAE O-Ring Boss on both ports. Maximum flow capacity 6 gpm. Used in hydraulic circuits requiring precise flow regulation
Parker
Steel-bodied pressure-compensated flow control valve with rotary knob adjustment. Maintains constant flow rate despite pressure variations. Connections are #8 SAE O-Ring Boss on both ports. Maximum flow capacity 6 gpm. Used in hydraulic circuits requiring precise flow regulation
Two-way pressure-actuated water regulating valve with a brass body and 7/8 in female sweat pipe connection. Modulates flow to maintain set downstream pressure in water systems. Commonly used in HVAC and refrigeration applications to control water flow based on system pressure
Parker
Two-way pressure-actuated water regulating valve with a brass body and 7/8 in female sweat pipe connection. Modulates flow to maintain set downstream pressure in water systems. Commonly used in HVAC and refrigeration applications to control water flow based on system pressure
Thermostatic expansion valve for R-404A refrigerant with a nominal capacity of 2 tons. Features field-adjustable superheat setting. Used in refrigeration systems to regulate refrigerant flow into the evaporator, commonly applied in commercial refrigeration and cold storage
Parker
Thermostatic expansion valve for R-404A refrigerant with a nominal capacity of 2 tons. Features field-adjustable superheat setting. Used in refrigeration systems to regulate refrigerant flow into the evaporator, commonly applied in commercial refrigeration and cold storage
Two-way pressure-actuated water regulating valve with a brass body and 5/8 in female sweat pipe connection. Used to modulate water flow in response to system pressure changes, commonly applied in HVAC cooling circuits and industrial fluid systems to maintain set pressure
Parker
Two-way pressure-actuated water regulating valve with a brass body and 5/8 in female sweat pipe connection. Used to modulate water flow in response to system pressure changes, commonly applied in HVAC cooling circuits and industrial fluid systems to maintain set pressure

More from Siemens

View all Siemens parts
Siemens
Siemens
This pressure-actuated water regulating valve from Siemens features a steel body and is designed for use with R-507 refrigerant. It modulates water flow to maintain stable discharge pressure in refrigeration systems. Maximum flow capacity is 8 cubic meters per hour with a 1-inch connection size
Siemens
Siemens
This pressure-actuated water regulating valve from Siemens features a steel body and is designed for use with R-507 refrigerant. It modulates water flow in response to discharge pressure, helping to maintain stable system operation. Typical applications include refrigeration systems where precise pressure control is required
Two-way pressure-actuated water regulating valve with steel body, rated for R-507 refrigerant. Maximum flow capacity of 27.7 gpm with 1 1/8 in sweat pipe connection. Used in refrigeration systems to modulate water flow and maintain stable condensing pressure
Siemens
Two-way pressure-actuated water regulating valve with steel body, rated for R-507 refrigerant. Maximum flow capacity of 27.7 gpm with 1 1/8 in sweat pipe connection. Used in refrigeration systems to modulate water flow and maintain stable condensing pressure