YHUER
0 ratings
1/2 9D-M3 Brass Backflow Preventer Dual Check Valve | 1/2 Inch Dual Check Valve with Intermediate Atmospheric Vent, 1/2 Back Flow Preventer Valve Female Union 190T012
genuine image
1/2 9D-M3 Brass Backflow Preventer Dual Check Valve | 1/2 Inch Dual Check Valve with Intermediate Atmospheric Vent, 1/2 Back Flow Preventer Valve Female Union 190T012
Ensure the safety of your potable water supply with our reliable backflow preventer, engineered for robust performance and versatile applications.
1/2" 9D-M3 Brass Backflow Preventer Dual Check Valve | 1/2 Inch Dual Check Valve with Intermediate Atmospheric Vent, 1/2 Back Flow Preventer Valve Female Union 190T012
Item #: 163962189

1/2" 9D-M3 Brass Backflow Preventer Dual Check Valve | 1/2 Inch Dual Check Valve with Intermediate Atmospheric Vent, 1/2 Back Flow Preventer Valve

88% of respondents would recommend this to a friend

Item #: 163962189
0 ratings Write a review
Out of stock
us Imported from USA store
Secured transactionsecured transaction

Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.

Our Top Logistics Partners
  • fedex
  • dhl
Ensure the safety of your potable water supply with our reliable backflow preventer, engineered for robust performance and versatile applications.
Search for similar products
U-Care Warranty:
None
Select a Plan
fast shipping

Fast
Shipping

free return

Free
Return*

secure packaging

Secure Packaging

100% original products

100% Original Products

pci-dss

PCI DSS Compliance

iso certified

ISO 27001 Certified

paypal payment
visa payment
mastercard payment
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

Durable Brass Construction
Made from high-quality brass, this backflow preventer ensures long-lasting durability and reliability, making it a superior choice for protecting potable water systems.
Dual Check Mechanism
The dual check valve design efficiently prevents backflow while allowing proper drainage, significantly reducing the risk of contamination in water systems.
Easy Installation
Designed for straightforward installation, this 1/2-inch backflow preventer easily replaces comparable models, offering convenience for plumbing professionals and DIY installers alike.

Product Details

Shop 1/2 9D-M3 Brass Backflow Preventer Dual Check Valve | 1/2 Inch Dual Check Valve with Intermediate Atmospheric Vent, 1/2 Back Flow Preventer Valve Female Union 190T012 online at a best price in Guyana. B0F3HX8FSF

Who Should Buy?

Suitable For
  • Plumbing Professionals

    Ideal for plumbers handling backflow prevention installations and repairs, ensuring compliance with local plumbing codes.

  • Homeowners

    Great for homeowners needing reliable backflow prevention for irrigation systems to protect drinking water quality.

  • DIY Enthusiasts

    Suitable for DIY enthusiasts looking to install or replace backflow preventers in residential plumbing projects.

Not Suitable For
  • Industrial Use

    Not suitable for heavy industrial systems requiring robust backflow prevention due to lower pressure ratings.

Product Description

1/2" 9D-M3 Brass Backflow Preventer Dual Check Valve | 1/2 Inch Dual Check Valve with Intermediate Atmospheric Vent, 1/2 Back Flow Preventer Valve Female Union 190T012

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a 1/2" 9D-M3 Brass Backflow Preventer used for?

    Answer: A 1/2" 9D-M3 Brass Backflow Preventer is designed to protect potable water supplies from contamination due to backflow. It is typically utilized in irrigation systems, water supply lines, and industrial applications to ensure that water flows in one direction, preventing harmful pollutants from entering clean water sources. In practical use, this valve is essential for maintaining water quality in residential gardens or commercial landscapes where chemicals may be present.
  • Question: How does the Dual Check Valve with Intermediate Atmospheric Vent work?

    Answer: The Dual Check Valve with Intermediate Atmospheric Vent operates by allowing water to flow in a single direction while preventing backflow through a built-in vent. This design ensures that any pressure changes can be equalized, reducing the risk of siphoning contaminants back into the system. This is particularly important in situations where there are variations in water pressure, such as during irrigation or plumbing maintenance, ensuring that clean water remains protected.
  • Question: Can I install the 1/2 Backflow Preventer Valve myself?

    Answer: Yes, the 1/2 Backflow Preventer Valve can typically be installed by a skilled DIYer or a professional plumber, depending on your comfort level with plumbing tasks. Prior to installation, ensure you follow all relevant local building codes and regulations. If installing in a complex system or for the first time, it's often beneficial to consult a plumbing expert to ensure proper installation and function, thereby ensuring the integrity of your water supply.
  • Question: What materials is the 1/2" 9D-M3 Brass Backflow Preventer made of?

    Answer: The 1/2" 9D-M3 Brass Backflow Preventer is primarily made of high-quality brass, which offers excellent resistance to corrosion and durability. This robust material ensures the valve can withstand the pressures and environmental factors commonly encountered in plumbing and irrigation systems. Brass is also known for its longevity, making it an ideal choice for reliable performance in both residential and commercial applications.
  • Question: What are common applications for the 1/2 Inch Backflow Preventer?

    Answer: Common applications for the 1/2 Inch Backflow Preventer include residential garden irrigation systems, commercial landscaping, and protecting water supplies in livestock watering applications. Its design is particularly useful anywhere there is a risk of backflow due to pressure changes or system alterations. Consequently, using this valve helps maintain health and safety standards in potable water systems where contamination risks are a concern.
  • Question: What is the lifespan of a backflow preventer valve?

    Answer: The lifespan of a backflow preventer valve like the 1/2 Backflow Preventer Valve largely depends on usage, maintenance, and environmental conditions. Generally, with proper maintenance, these valves can function effectively for many years. Regular checks and maintenance against debris buildup and corrosion will prolong the valve's life, ensuring that it continues to protect your water supply effectively in environments where water quality is crucial.
  • Question: Is a backflow preventer required by code?

    Answer: Yes, in many areas, building codes require the installation of a backflow preventer in systems where there is a risk of backflow contamination. This is particularly applicable in instances involving irrigation, pools, and industrial applications. It’s essential to check local regulations to ensure compliance and protect public health by preventing contaminants from entering the potable water supply.
  • Question: What are the advantages of using brass for backflow preventers?

    Answer: Brass is favored for backflow preventers due to its corrosion resistance and durability. It can withstand high pressure and adverse environmental conditions, making it ideal for various plumbing applications. Additionally, brass maintains structural integrity, ensuring longevity and reliable performance. Its thermal properties also allow it to be functional in varying temperatures, making it a versatile choice for backflow prevention in different settings.
  • Question: What maintenance is needed for a backflow preventer?

    Answer: Regular maintenance for a backflow preventer involves periodic inspection and cleaning to prevent debris buildup that could impede performance. It is advisable to test the valve annually or as recommended by local codes to ensure it is functioning correctly. Checking for leaks, inspecting seals, and ensuring that the atmospheric vent is clear are essential tasks that help maintain the valve’s effectiveness in preventing backflow issues.
  • Question: Where can I buy a 1/2" 9D-M3 Brass Backflow Preventer in Guyana?

    Answer: You can purchase the 1/2" 9D-M3 Brass Backflow Preventer from Ubuy in Guyana. Ubuy offers a convenient online shopping experience with a wide range of plumbing products, including high-quality backflow preventers. By choosing Ubuy, you can ensure that you are getting reliable products delivered to your door, with detailed product descriptions and customer reviews to aid in your purchasing decision.

YHUER Check Valves Editorial Review

The 1/2" 9D-M3 Brass Backflow Preventer has received largely positive feedback from customers, offering a reliable solution for numerous water systems, particularly for drip irrigation setups. Many users praise its ease of installation and efficient functionality. Once integrated, it has notably resolved issues with pump pressure regulation, ensuring smooth operation without leaks or noise. Customers have highlighted the device's solid Construction, made entirely of brass, which not only enhances durability but also instills confidence in its long-term performance. Its safety features, such as the intermediate atmospheric vent, are appreciated, adding an extra layer of protection for water systems. Users find the unit well-suited for various applications, providing peace of mind against backflow issues—critical for maintaining water quality. However, there are some concerns regarding the unions on either side of the preventer. A few users reported difficulties with leaks, particularly after using Teflon tape and experiencing breakage while tightening. This has prompted some to Consider alternative brands to ensure reliability. Overall, the 1/2" Brass Backflow Preventer delivers a cost-effective and dependable solution, although potential buyers should be aware of the challenges related to the unions to ensure optimal functionality in their installations. **

Customer Reviews & Ratings

1 customers ratings
  • 5 Star
    100%
  • 4 Star
    0%
  • 3 Star
    0%
  • 2 Star
    0%
  • 1 Star
    0%

Review this product

Share your thoughts with other customers

Pros

  • Easy to install
  • Durable solid brass Construction
  • Effectively prevents backflow
  • Resolves pump pressure confusion
  • Safety features for added protection
  • Suitable for various applications, including drip irrigation

Cons

  • Unions may break during installation tightening

Platform Trust & Buyer Confidence

trustpilot logo
4.2/5 9477 reviews
Read reviews
JK
Jasmin
Verified buyer

“Great products and very good service: very easy and very fast international delivery.”

9 September 2026 · via Trustpilot
AG
Anke
Verified buyer

“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”

10 September 2026 · via Trustpilot
H
Hazel
Verified buyer

“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”

10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer

“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

11 September 2026 · via Trustpilot
AC
Adele
Verified buyer

“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
Secure Checkout Global Delivery Easy Returns Genuine Products

Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

Currently unavailable.

We don't know when or if this item will be back in stock.

Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • Versatile design suitable for laboratory equipment, processing tanks, sterilizers, and dairy applications.
  • Operates effectively under continuous pressure with a temperature range of 33°F to 210°F.
  • Maximum working pressure of 175psi, ensuring reliable performance in various settings.
  • High-quality brass and stainless steel construction with integral filter and durable rubber discs.
  • User-friendly design for easy installation in vertical and horizontal orientations.
  • Prevents reverse flow of contaminated water, safeguarding your potable water supply.

Ubuy Assurance

Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.