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

NUTECH Manual Balancing Valve: Manual, FNPT, 6.7 gpm – 21 gpm, 6.7 gpm Min. Flow Rate - Manual Balancing Valves
NUTECHManual Balancing Valves

NUTECH Manual Balancing Valve: Manual, FNPT, 6.7 gpm – 21 gpm, 6.7 gpm Min. Flow Rate

The NUTECH Manual Balancing Valve is a manual balancing valve with a brass body and FNPT connections. It has a flow range of 6.7 gpm to 21 gpm, a minimum flow rate of 6.7 gpm, and an accuracy of ±3%.

SKU 3G-OTH-444346

Also listed as: MB3E3A125F125F · MB3E 3A 125F 125F

Brand
NUTECH
Item
Manual Balancing Valve: Manual, FNPT, 6.7 gpm – 21 gpm, 6.7 gpm Min. Flow Rate
Category
Manual Balancing 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

NUTECH
Manufacturer Part Number
MB3E-3A-125F-125F
Type
FNPT, 6.7 gpm – 21 gpm, Brass, Female
Accuracy
±3%
Min. Flow Rate
6.7 gpm

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

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

Product Description

The NUTECH Manual Balancing Valve is a manual balancing valve with a brass body and FNPT connections. It has a flow range of 6.7 gpm to 21 gpm, a minimum flow rate of 6.7 gpm, and an accuracy of ±3%.

Frequently Asked Questions

What is the NUTECH Manual Balancing Valve used for?

The NUTECH Manual Balancing Valve is used in HVAC and hydronic systems to precisely regulate water flow through terminal units, coils, and zones. It ensures balanced distribution, improves system efficiency, and reduces energy consumption. Typical applications include commercial buildings, industrial process loops, and chilled or hot water systems.

What are the specifications of the NUTECH Manual Balancing Valve?

The NUTECH Manual Balancing Valve (MPN MB3E-3A-125F-125F) has a brass body with FNPT connections. Its flow range is 6.7 gpm to 21 gpm, with a minimum flow rate of 6.7 gpm. Accuracy is ±3%. It is a manual balancing valve designed for precise flow control in hydronic systems.

Where to buy the NUTECH Manual Balancing Valve worldwide?

You can source the NUTECH Manual Balancing Valve through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time. We supply genuine NUTECH components for HVAC and industrial applications.

How to install a NUTECH Manual Balancing Valve?

Install the NUTECH Manual Balancing Valve in the return line of the hydronic circuit, ensuring flow direction matches the arrow on the body. Use thread sealant on FNPT connections and tighten to manufacturer torque specs. After installation, adjust the valve to the calculated design flow using a differential pressure meter. Always follow local plumbing codes.

Used in

Common applications for NUTECH
Hydronic heating system balancing — NUTECH manual balancing valves (e.g., MB2E-2A-100S-100S) for flow regulation in multi-zone loops
Chilled water distribution — NUTECH manual balancing valves (e.g., MB3E-3A-150F-150F) for precise flow control in cooling circuits
Boiler isolation and filtration — NUTECH strainer/ball valve combination (e.g., SV1E-075F-075F) for combined shutoff and debris removal
Pump protection in HVAC — NUTECH strainer/ball valve combination (e.g., SV2E-100S-100S) with plugged bypass for maintenance access
Process water strainer stations — NUTECH strainer/ball valve combination (e.g., SV3E-125F-125F) with pressure/temperature port for monitoring
Commercial plumbing branch lines — NUTECH strainer/ball valve combination (e.g., SV3E-150F-150F) with hose end drain for system flushing

NUTECH Products

3G Electric supplies NUTECH manual balancing 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
NUTECH Manual Balancing Valve: Manual, FNPT, 6.7 gpm – 21 gpm, 6.7 gpm Min. Flow Rate, Brass, Female (MPN MB3E-3A-150F-150F)
NUTECH
NUTECH Manual Balancing Valve: Manual, FNPT, 6.7 gpm – 21 gpm, 6.7 gpm Min. Flow Rate, Brass, Female (MPN MB3E-3A-150F-150F)
NUTECH Manual Balancing Valve: Manual, Sweat, 6.7 gpm – 21 gpm, 6.7 gpm Min. Flow Rate, Brass, Sweat (MPN MB3E-3A-150S-150S)
NUTECH
NUTECH Manual Balancing Valve: Manual, Sweat, 6.7 gpm – 21 gpm, 6.7 gpm Min. Flow Rate, Brass, Sweat (MPN MB3E-3A-150S-150S)
NUTECH Manual Balancing Valve: Manual, FNPT, 4 gpm – 13 gpm, 4 gpm Min. Flow Rate, Brass, Female (MPN MB2E-2B-100F-100F)
NUTECH
NUTECH Manual Balancing Valve: Manual, FNPT, 4 gpm – 13 gpm, 4 gpm Min. Flow Rate, Brass, Female (MPN MB2E-2B-100F-100F)
NUTECH Manual Balancing Valve: Manual, FNPT, 15 gpm – 50 gpm, 15 gpm Min. Flow Rate, Brass, Female (MPN MB4-4A-200F-200F)
NUTECH
NUTECH Manual Balancing Valve: Manual, FNPT, 15 gpm – 50 gpm, 15 gpm Min. Flow Rate, Brass, Female (MPN MB4-4A-200F-200F)
NUTECH Manual Balancing Valve: Manual, FNPT, 0.4 gpm – 1.3 gpm, 0.4 gpm Min. Flow Rate, Brass, NPT (MPN MB1E-1A-075F-075F)
NUTECH
NUTECH Manual Balancing Valve: Manual, FNPT, 0.4 gpm – 1.3 gpm, 0.4 gpm Min. Flow Rate, Brass, NPT (MPN MB1E-1A-075F-075F)
NUTECH Manual Balancing Valve: Manual, Sweat, 1.6 gpm – 5 gpm, 1.6 gpm Min. Flow Rate, Brass, Sweat (MPN MB2E-2A-100S-100S)
NUTECH
NUTECH Manual Balancing Valve: Manual, Sweat, 1.6 gpm – 5 gpm, 1.6 gpm Min. Flow Rate, Brass, Sweat (MPN MB2E-2A-100S-100S)

More from NUTECH

View all NUTECH parts
NUTECH Manual Balancing Valve: Manual, Sweat, 4 gpm – 13 gpm, 4 gpm Min. Flow Rate, Brass, Sweat (MPN MB2E-2B-100S-100S)
NUTECH
NUTECH Manual Balancing Valve: Manual, Sweat, 4 gpm – 13 gpm, 4 gpm Min. Flow Rate, Brass, Sweat (MPN MB2E-2B-100S-100S)
NUTECH Manual Balancing Valve: Manual, FNPT, 1.6 gpm – 5 gpm, 1.6 gpm Min. Flow Rate, Brass, Female (MPN MB2E-2A-100F-100F)
NUTECH
NUTECH Manual Balancing Valve: Manual, FNPT, 1.6 gpm – 5 gpm, 1.6 gpm Min. Flow Rate, Brass, Female (MPN MB2E-2A-100F-100F)
NUTECH Manual Balancing Valve: Manual, FNPT, 1.5 gpm – 5 gpm, 1.5 gpm Min. Flow Rate, Brass, Female (MPN MB1E-1B-050F-050F)
NUTECH
NUTECH Manual Balancing Valve: Manual, FNPT, 1.5 gpm – 5 gpm, 1.5 gpm Min. Flow Rate, Brass, Female (MPN MB1E-1B-050F-050F)
NUTECH Manual Balancing Valve: Manual, FNPT, 1.5 gpm – 5 gpm, 1.5 gpm Min. Flow Rate, Brass, Female (MPN MB1E-1B-075F-075F)
NUTECH
NUTECH Manual Balancing Valve: Manual, FNPT, 1.5 gpm – 5 gpm, 1.5 gpm Min. Flow Rate, Brass, Female (MPN MB1E-1B-075F-075F)
NUTECH Manual Balancing Valve: Manual, Sweat, 1.5 gpm – 5 gpm, 1.5 gpm Min. Flow Rate, Brass, Sweat (MPN MB1E-1B-075S-075S)
NUTECH
NUTECH Manual Balancing Valve: Manual, Sweat, 1.5 gpm – 5 gpm, 1.5 gpm Min. Flow Rate, Brass, Sweat (MPN MB1E-1B-075S-075S)
NUTECH Manual Balancing Valve: Manual, FNPT, 0.4 gpm – 1.3 gpm, 0.4 gpm Min. Flow Rate, Brass, NPT (MPN MB1E-1A-050F-050F)
NUTECH
NUTECH Manual Balancing Valve: Manual, FNPT, 0.4 gpm – 1.3 gpm, 0.4 gpm Min. Flow Rate, Brass, NPT (MPN MB1E-1A-050F-050F)
NUTECH Manual Balancing Valve: Manual, Sweat, 0.4 gpm – 1.3 gpm, 0.4 gpm Min. Flow Rate, Brass, PTFE (MPN MB1E-1A-075S-075S)
NUTECH
NUTECH Manual Balancing Valve: Manual, Sweat, 0.4 gpm – 1.3 gpm, 0.4 gpm Min. Flow Rate, Brass, PTFE (MPN MB1E-1A-075S-075S)
NUTECH Manual Balancing Valve: Manual, Sweat, 6.7 gpm – 21 gpm, 6.7 gpm Min. Flow Rate, Brass, Sweat (MPN MB3E-3A-125S-125S)
NUTECH
NUTECH Manual Balancing Valve: Manual, Sweat, 6.7 gpm – 21 gpm, 6.7 gpm Min. Flow Rate, Brass, Sweat (MPN MB3E-3A-125S-125S)