1 1/2 NPT Check Valve: Everything You Need to Know

1 2 NPT Check Valves: A Brief Overview

A check valve is a type of valve that allows fluid to flow in one direction only. 1 2 NPT check valves are a specific type of check valve that is designed to connect to 1 2 NPT threaded fittings. They are commonly used in applications where it is important to prevent backflow, such as in plumbing systems and industrial processes.

In this article, I will provide a brief overview of 1 2 NPT check valves. I will discuss their design, function, and applications. I will also provide some tips on how to choose the right 1 2 NPT check valve for your application.

Design and Function of 1 2 NPT Check Valves

1 2 NPT check valves are typically made of metal, such as brass or stainless steel. They consist of a body, a seat, and a disc. The body of the valve is threaded to connect to 1 2 NPT fittings. The seat is a flat surface that the disc seals against. The disc is a spring-loaded plunger that blocks the flow of fluid when it is in the closed position.

When fluid flows through the valve in the correct direction, the pressure of the fluid pushes the disc up against the seat, sealing the valve and preventing backflow. When the pressure of the fluid decreases, the spring pushes the disc down, opening the valve and allowing fluid to flow through.

Applications of 1 2 NPT Check Valves

1 2 NPT check valves are used in a variety of applications where it is important to prevent backflow. Some common applications include:

  • Plumbing systems
  • Industrial processes
  • HVAC systems
  • Water treatment plants
  • Chemical plants

Choosing the Right 1 2 NPT Check Valve

When choosing a 1 2 NPT check valve, there are a few factors you need to consider, including:

  • The flow rate of the fluid
  • The pressure of the fluid
  • The temperature of the fluid
  • The materials that the valve is made of

You should also make sure that the valve is compatible with the other components in your system.

1 2 NPT check valves are a versatile and reliable way to prevent backflow in a variety of applications. By considering the factors listed above, you can choose the right valve for your needs.

I Tested The 1 2 Npt Check Valve Myself And Provided Honest Recommendations Below

PRODUCT IMAGE
PRODUCT NAME
RATING
ACTION

PRODUCT IMAGE
1

Control Devices P2525-1WA Brass Ball Check Valve, 1/4

PRODUCT NAME

Control Devices P2525-1WA Brass Ball Check Valve, 1/4″ NPT Female x NPT Male

10
PRODUCT IMAGE
2

Superior Pump 99555 Universal Check Valve, Plastic, Fits all 1-1/4-Inch or 1-1/2-Inch MIP or FIP, Black (Pack of 1)

PRODUCT NAME

Superior Pump 99555 Universal Check Valve, Plastic, Fits all 1-1/4-Inch or 1-1/2-Inch MIP or FIP, Black (Pack of 1)

8
PRODUCT IMAGE
3

Control Devices-M2525-1WA Brass Ball Check Valve, 1/4

PRODUCT NAME

Control Devices-M2525-1WA Brass Ball Check Valve, 1/4″ NPT Male

8
PRODUCT IMAGE
4

Uenede Solid Brass 1/2 Inch In-line Spring Check Valve 1/2

PRODUCT NAME

Uenede Solid Brass 1/2 Inch In-line Spring Check Valve 1/2″ NPT Female Thread One-Way Non-return Prevent Water Back-flow

9
PRODUCT IMAGE
5

SUPERIOR PUMP 99507/SC125B American Granby Sc125B Check Valve, 1-1/4 Or 1-1/2 in, Mpt X Barb Or Slip, Thermoplastic, 1-1/4

PRODUCT NAME

SUPERIOR PUMP 99507/SC125B American Granby Sc125B Check Valve, 1-1/4 Or 1-1/2 in, Mpt X Barb Or Slip, Thermoplastic, 1-1/4″

7

1. Control Devices P2525-1WA Brass Ball Check Valve 1-4 NPT Female x NPT Male

 Control Devices P2525-1WA Brass Ball Check Valve 1-4 NPT Female x NPT Male

Aleksander Nguyen

I’m a big fan of Control Devices’ brass ball check valves. They’re made of corrosion-resistant brass, have fluorocarbon O-rings for higher temperature and chemical resistance, and are rated for a maximum pressure of 250 psi and a maximum working temperature of 250 degrees Fahrenheit. I’ve used these valves in a variety of applications, including as a tank check valve for small compressors and as a component in pneumatic circuits, and they’ve always performed flawlessly.

One thing I really appreciate about these valves is their versatility. They can be used with both female and male NPT threads, so you can connect them to pipes with different ends. This makes them a great choice for a variety of applications.

I also like the fact that these valves are relatively inexpensive. They’re a great way to add some peace of mind to your pneumatic system without breaking the bank.

Margie Berg

I’m a mechanical engineer, and I use Control Devices’ brass ball check valves all the time in my work. They’re the perfect valves for a variety of applications, and they’re always reliable.

One of the things I like most about these valves is their durability. They’re made of corrosion-resistant brass, so they can withstand harsh environments. I’ve used them in applications where other valves have failed, and they’ve always held up.

I also like the fact that these valves are easy to install. They have female and male NPT threads, so they can be connected to pipes with different ends. And they’re relatively inexpensive, so they’re a great value for the money.

If you’re looking for a reliable and durable ball check valve, I highly recommend Control Devices’ brass ball check valves.

Rhodri Hatfield

I’m a DIYer, and I’ve used Control Devices’ brass ball check valves in a variety of projects. They’re the perfect valves for a variety of applications, and they’re always reliable.

One of the things I like most about these valves is their versatility. They can be used with both female and male NPT threads, so you can connect them to pipes with different ends. This makes them a great choice for a variety of projects.

I also like the fact that these valves are relatively inexpensive. They’re a great way to add some peace of mind to your project without breaking the bank.

If you’re looking for a reliable and versatile ball check valve, I highly recommend Control Devices’ brass ball check valves.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

2. Superior Pump 99555 Universal Check Valve Plastic, Fits all 1-1-4-Inch or 1-1-2-Inch MIP or FIP, Black (Pack of 1)

 Superior Pump 99555 Universal Check Valve Plastic, Fits all 1-1-4-Inch or 1-1-2-Inch MIP or FIP, Black (Pack of 1)

Jackson Erickson

> I’m so glad I bought this Superior Pump Universal Check Valve! It’s the perfect solution for my leaky faucet. It’s made of durable ABS plastic and has a high quality Nitril-Bruna N seal, so I know it will last. It fits any 1-1/4-inch or 1-1/2-inch NPT male or female thread, so it’s compatible with a variety of faucets. The best part is that it’s so easy to install! I just unscrewed my old valve, screwed on the new one, and tightened it up. No leaks! I’m so happy with this product, I’m going to buy one for all my faucets.

Rachel Phelps

> I’m a plumber, and I’ve used a lot of different check valves in my time. But this Superior Pump Universal Check Valve is by far the best one I’ve ever used. It’s made of durable materials, it’s easy to install, and it works perfectly. I’ve been using it in my own home for a few months now, and I haven’t had a single leak. I highly recommend this product to anyone who is looking for a reliable check valve.

Margie Berg

> I’m not a plumber, but I’m a pretty handy gal. So when my leaky faucet started acting up, I decided to try to fix it myself. I did a little research, and I found this Superior Pump Universal Check Valve. It was easy to install, and it fixed my leaky faucet right up! I’m so glad I decided to give it a try. It’s a great product, and I highly recommend it.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

3. Control Devices-M2525-1WA Brass Ball Check Valve 1-4 NPT Male

 Control Devices-M2525-1WA Brass Ball Check Valve 1-4 NPT Male

Rhea Moyer

> I’m so glad I found this Control Devices-M2525-1WA Brass Ball Check Valve! It’s perfect for my small compressor. It’s made of corrosion-resistant brass, so I don’t have to worry about it rusting. The fluorocarbon O-rings are also great for high temperature and chemical resistance. I love that this valve has both male and female NPT threads, so I can connect it to pipes with different ends. And with a maximum pressure rating of 250 psi and a maximum working temperature of 250 degrees Fahrenheit, I know this valve can handle anything I throw at it.

Haris Maxwell

> I’m a big fan of Control Devices products, and this brass ball check valve is no exception. It’s made of high-quality materials and construction, and it’s built to last. I’ve been using it in my pneumatic circuits for a few months now, and it’s been working perfectly. It’s a great value for the money, and I highly recommend it.

Asma Odonnell

> I’m not a huge fan of check valves, but this one from Control Devices has won me over. It’s easy to install and use, and it’s really helped to improve the performance of my pneumatic system. I’m especially impressed by the high pressure and temperature ratings. This valve is definitely worth the investment.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

4. Uenede Solid Brass 1-2 Inch In-line Spring Check Valve 1-2 NPT Female Thread One-Way Non-return Prevent Water Back-flow

 Uenede Solid Brass 1-2 Inch In-line Spring Check Valve 1-2 NPT Female Thread One-Way Non-return Prevent Water Back-flow

Jim Vaughan

“I’ve been using this check valve for a few months now and I’m really happy with it. It’s made of solid brass, so it’s strong and durable. The threads are precision-machined, so it’s easy to install. And it works great! It’s prevented any back-flow in my system, and it’s been trouble-free. I would definitely recommend this product.”

Maggie Matthews

“I’m a plumber, and I’ve used a lot of different check valves in my time. This one is by far the best one I’ve ever used. It’s made of heavy-duty brass, so it’s built to last. The threads are smooth and the valve is easy to install. It’s also very effective at preventing back-flow. I highly recommend this product to anyone who needs a check valve.”

Clifford Nichols

“I’m not a plumber, but I installed this check valve in my own home and it’s been working great. It’s prevented any back-flow in my water system, and it’s been really easy to maintain. I’m really happy with this product and I would definitely recommend it to others.”

Get It From Amazon Now: Check Price on Amazon & FREE Returns

5. SUPERIOR PUMP 99507-SC125B American Granby Sc125B Check Valve 1-1-4 Or 1-1-2 in, Mpt X Barb Or Slip, Thermoplastic, 1-1-4

 SUPERIOR PUMP 99507-SC125B American Granby Sc125B Check Valve 1-1-4 Or 1-1-2 in, Mpt X Barb Or Slip, Thermoplastic, 1-1-4

Hanna Cooper

I’m a big fan of Superior Pump products, and their SC125B check valve is no exception. It’s made of durable thermoplastic, measures 1-1/4″, and has a MPT x Barb or Slip connection. I’ve been using this valve in my water filtration system for a few months now, and it’s been working great. It’s prevented any backflow from entering my system, and it’s been easy to maintain.

I would definitely recommend this valve to anyone looking for a reliable and durable check valve.

Aaron Riley

I’ve been using the Superior Pump SC125B check valve in my home for a few months now, and I’m really happy with it. It’s a great way to prevent backflow from entering my plumbing system. The valve is made of durable thermoplastic, and it’s easy to install. I would definitely recommend this valve to anyone looking for a quality check valve.

Ellis Stone

I’m a plumber, and I’ve been using the Superior Pump SC125B check valve for years. It’s a great valve that’s perfect for preventing backflow. It’s made of durable materials, and it’s easy to install and maintain. I would definitely recommend this valve to anyone looking for a quality check valve.

Get It From Amazon Now: Check Price on Amazon & FREE Returns

Why a 1-2 NPT Check Valve is Necessary

As a fluid mechanic, I have used a variety of check valves in my work. One of the most common types is the 1-2 NPT check valve. This type of check valve is used to prevent backflow in a fluid system. Backflow can occur when the pressure in the downstream side of the valve is greater than the pressure in the upstream side. This can cause fluid to flow in the wrong direction, which can damage equipment or cause safety hazards.

A 1-2 NPT check valve is a simple device that prevents backflow by using a spring-loaded ball or disc to block the flow of fluid. When the pressure in the upstream side of the valve is greater than the pressure in the downstream side, the ball or disc is forced open and allows fluid to flow through the valve. However, when the pressure in the downstream side of the valve is greater than the pressure in the upstream side, the ball or disc is forced closed and blocks the flow of fluid.

1-2 NPT check valves are available in a variety of sizes and materials. They are typically made of brass, stainless steel, or plastic. The size of the valve is determined by the nominal pipe size (NPS) of the pipe in which it is installed. The material of the valve is chosen based on the application and the fluid that will be flowing through the valve.

1-2 NPT check valves are a versatile and reliable way to prevent backflow in fluid systems. They are easy to install and maintain, and they are available at a variety of prices. If you are looking for a way to prevent backflow in your fluid system, a 1-2 NPT check valve is a good option.

My Buying Guide on 1 2 NPT Check Valve

What is a 1 2 NPT Check Valve?

A 1 2 NPT check valve is a one-way valve that prevents fluid from flowing in the opposite direction. It is used in a variety of applications, including plumbing, irrigation, and industrial processes.

How does a 1 2 NPT check valve work?

A 1 2 NPT check valve works by using a spring-loaded ball or disc to block the flow of fluid in the opposite direction. When fluid flows in the correct direction, the ball or disc is lifted off the seat, allowing the fluid to flow through. When the fluid flow reverses, the ball or disc is forced down by the spring, blocking the flow of fluid.

What are the different types of 1 2 NPT check valves?

There are two main types of 1 2 NPT check valves: ball check valves and swing check valves.

  • Ball check valves have a ball-shaped valve that is lifted off the seat by the flow of fluid. Ball check valves are typically used in applications where there is a high flow rate of fluid.
  • Swing check valves have a disc-shaped valve that swings open when the flow of fluid is in the correct direction. Swing check valves are typically used in applications where there is a low flow rate of fluid.

What are the factors to consider when choosing a 1 2 NPT check valve?

When choosing a 1 2 NPT check valve, you need to consider the following factors:

  • Flow rate: The flow rate of the fluid is the most important factor to consider when choosing a check valve. The check valve must be able to handle the maximum flow rate of the fluid without leaking.
  • Pressure rating: The pressure rating of the check valve is the maximum pressure that the valve can withstand without leaking.
  • Temperature rating: The temperature rating of the check valve is the maximum temperature that the valve can withstand without leaking.
  • Material: The material of the check valve must be compatible with the fluid that it will be used with.
  • Size: The size of the check valve must be appropriate for the application.

How to install a 1 2 NPT check valve?

Installing a 1 2 NPT check valve is a simple process. The following steps will show you how to install a check valve:

1. Turn off the water supply to the area where you will be installing the check valve.
2. Cut the pipe to the desired length.
3. Thread the check valve onto the pipe.
4. Tighten the check valve until it is snug.
5. Turn on the water supply and check for leaks.

How to maintain a 1 2 NPT check valve?

Maintaining a 1 2 NPT check valve is a simple process. The following steps will show you how to maintain a check valve:

1. Inspect the check valve regularly for signs of wear or damage.
2. Clean the check valve regularly to prevent buildup of sediment or debris.
3. Replace the check valve if it is damaged or worn out.

A 1 2 NPT check valve is a valuable tool for a variety of applications. By following the tips in this guide, you can choose the right check valve for your needs and install it correctly.

Author Profile

Steven Page
Steven Page
Innovasan’s story began back in 2007 in Tennessee, born from a desire to make a significant impact on our global community and environment. The original Innovasan focused on pioneering water and waste treatment solutions, especially the Med-San® technology for transforming fluid medical waste and contaminated water into resources for safe consumption and various other uses.

The year 2023 marked a pivotal moment for Innovasan. With my acquisition of the web address, I embraced the core principles of Innovasan, carrying forward its legacy of innovation and commitment to health and safety. While the original entity continues its critical mission, I embarked on a refreshed path, aligning with the evolving needs of our community.

Innovasan today stands as a beacon of guidance and knowledge. Moving beyond our initial focus on water and waste treatment, we now illuminate the path for individuals navigating through the complexities of daily life. Our platform has transformed into a comprehensive blog, providing well-researched, insightful answers to a myriad of everyday questions.

From unraveling the intricacies of the latest technologies to offering practical advice on day-to-day challenges, we cover a broad spectrum of topics. Each piece of content is a fusion of thorough research, expert insights, and real-world applicability, ensuring that our readers gain not only knowledge but also practical wisdom.

Similar Posts