Chlorine-Resistant Valves for the Pulp and Paper Industry

The worldwide pulp and paper industry produces hundreds of thousands of tons of paper each year. It is not hard to recognize how important paper production is across the world. This vital industry presents a number of unique challenges related to the production processes. Paper mills often use a variety of chemicals like chlorine dioxide that must be precisely controlled and sequestered. Pulp and paper production requires specialized valves and fittings that can stand up to unique conditions and long-term use.

The Pulp and Paper industry has also been the focus of concern because of environmental impact. These factors increase the importance of quality valves and fitting in the paper industry. CPV Manufacturing creates valves and fittings designed specifically for pulp and paper production. Our engineers design all of our products to meet exact specifications and stand up to the unique conditions and requirements of each application. Find out more about the specialized valves and fittings designed for pulp and paper production.

Chlorine’s liquid and gas form both present a number of challenges for valves in pipe systems. Liquid chlorine can be highly corrosive on many metal valves, and keeping any moisture separated from the chlorine is essential. Chlorine is also very reactive, becoming explosive when in contact with certain oils and greases. Chlorine can also support combustion and becomes dangerously reactive at high temperatures. Another common issue with chlorine gas is volumetric expansion. As the temperature of chlorine increases, so does the volume.

CPV Manufacturing offers valves that meet the many requirements of pipe systems with chlorine. Our globe, ball, and butterfly valves are designed with materials that resist chlorine corrosion. Valves can also be custom fitted and designed to protect against volumetric expansion, moisture, cavitation, and contaminants like oil or grease. All our valves used in chlorine systems meet the requirements of The Chlorine Institute, which regulates chlorine production and distribution to ensure safety. Valve and fitting maintenance is also essential in these applications. CPV’s experts can work with you on our pulp and paper industry valves and fittings, helping you find the perfect products for your specific application.

Approval for 1330/1622 Oxygen Cleaning

Kennett Square, PA, USA (8/23/22) – Admiral Valve, LLC dba CPV Manufacturing Recently Approved for 1330/1622 Oxygen Cleaning

CPV Manufacturing’s aqueous component cleaning process was recently approved by NAVSEA for MIL-STD-1330D and MIL-STD-1622B cleaning. With the approval for 1330/1622 Oxygen Cleaning, CPV will now be able to better meet the needs of the U.S. Navy and other applications requiring intensive cleaning standards.

This approval gives CPV the ability to clean valve components, produce and test finished assembled valves, and package shipments meeting 1330/1622 standards without materials leaving its facility prior to the final shipment. This will allow for greater in-house efficiency, decreased lead times and easier product traceability. Below are the standards listed in full.

  • MIL-STD-1330D Department of Defense Standard Practice, Precision Cleaning and Testing of Shipboard Oxygen, Helium, Helium-Oxygen, Nitrogen, and Hydrogen Systems
  • MIL-STD-1622B Department of Defense Standard Practice, Cleaning of Shipboard Compressed Air Systems.

This is an exponential step in the growth of CPV and President and CEO, David London is ecstatic. “Attaining this high-level certification attests to our strong commitment to our customers and the production of high-quality, safe products. We have been working towards this approval for quite some time and have made significant investments into our facilities and personnel in preparation for this new standard.”

CPV’s cleanroom was expanded in 2021 and Certified to meet ISO 14644 Class 7 standards. Employees have been trained and certified as Oxygen Clean Workers and validated to meet MIL-STD-1330D standards. This further enhances CPV’s cleaning program which already meets:

  • CGA G-4.1-2018 – Cleaning of Equipment for Oxygen Service and ASTM G93
  • ASTM G93/G93M-19 – Cleanliness Levels and Cleaning Methods for Materials and Equipment Used in Oxygen-Enriched Environments


And CPV isn’t stopping there. CPV promises to continue to invest in its facility, employees, and equipment to provide best-in-class service and products to ends users in every application possible. CPV is proud to finally say we are certified for MIL-STD-1330D and MIL-STD-1622B Oxygen Cleaning and is looking forward to the next challenge they can accomplish for their customers.


If you have any questions or wish to learn more, contact CPV today at


CPV Manufacturing LogoCPV Manufacturing was founded in 1915 as a one-man business, manufacturing replacement valves for steam-driven reciprocating pumps. Today, CPV is recognized worldwide for its high-quality valves and fittings and dedication to state-of-the-art design, equipment, safety, and reliability. CPV Manufacturing’s valves withstand the high tolerances required by the maritime, industrial gas, and petrochemical industries. Based out of Kennett Square, PA, USA, CPV has a complete facility for developing, manufacturing, and testing its products. Dedicated workers and global partnerships allow CPV to be a market leader. 

Needle Valve Supplier

Needle valves are used for regulating the flow of high-pressure fluids and gases within a pipeline. They are so aptly named because their plunger design is similar to that of a sewing needle, and it is this innovative design that allows them to control the flow of fluids and gases with extreme precision. Additionally, they protect delicate gauges from the damage that can be caused by sudden pressure changes.

They can be made from various materials, and the one you choose to use will depend greatly on the specific needs of your application. While they can be made from various materials, they can also be set up to operate manually or automatically. As the premier needle valve manufacturer, CPV Manufacturing offers a wide range of valve products to meet your needs.

Hydraulic needle valves are used to control flow in both directions in a pipeline. Needle valves are comparable to shut-off valves; however, a main distinction between the two types of valves is in the design. Needle valves feature a long plunger that is controlled by a handwheel. The needle valve’s plunger fits into a seat, and this is what gives it the ability to meticulously control the flow of fluids or gases.

Needle valves can be made from a variety of materials. Stainless steel needle valves are frequently used because they are durable, long-lasting, and require little maintenance. They can also withstand extreme temperatures. Brass needle valves are commonly used for instances such as drinking water or high-temperature applications. This type of needle valve is also able to resist corrosion and is a strong material, also making it ideal for chemical processing applications.

CPV Manufacturing is also known for gas needle valve manufacturing and can provide gas needle valves that allow you to closely control gas processes, such as gas mixing applications. If you have questions about our needle valves or need assistance selecting the right valve for your application, contact us today.

CPV Valves for Process and Control of Elusive Gases

For valves installed in piping systems which process and control flammable gases like hydrogen and oxygen, system leakproof integrity is of the highest priority. Given the precision control required for filling applications, the rugged durability of CPV valves are the perfect match. CPV oxygen-service-approved OXNB and GSB Master Valves are optimized for critical systems such as fill plants, high pressure manifolds, and various other piping applications. They are the highest pressure-rated and most reliable industrial gas valves on the market for oxygen service.

All CPV oxygen hand valves have an ergonomic handle, low torque to open and close, and provide peace of mind knowing that this valve will seal bubble-tight every time. CPV OXNB FloMaster® Air-Actuated Valves provide the seamless reliability for an automated system. These valves are used on fill islands inside plants, as well as outside on ground storage tanks, where they are often subjected to extreme winter weather conditions. CPV valves are the most reliable and robust valve in the industry, operating for every fill and every shutoff, requiring very little maintenance throughout their long tenure of service.

OXNB and GSB Master Valves utilize the same reliable sealing method as CPV’s standard O-SEAL® Series valves which have been used throughout a range of industries for more than 75 years! These proven flat-faced O-Ring Face-Seal (ORFS) valves offer the leakproof integrity of heat-sealed connections plus slip-in slip-out accessibility. They also feature a unique internal soft-seat design whose reliability has been proven in hundreds of rigorous applications. What’s more, the O-SEAL® system actually uses line pressure to seal; the higher the pressure, the tighter the seal. CPV fittings have break-remake flexibility and assure leak-proof reliability. Connections can be broken and remade at will, with full assurance of positive sealing.

With robust, high functioning, & bubble-tight operation, these valves can be relied upon to meet your high-pressure piping system needs today and for many years to come. You can count on CPV Manufacturing to provide the most reliable products in the industry.

Why Become a CPV Distributor?

At first glance, it may seem like becoming a CPV Manufacturing distributor is an appropriate career choice for only those who are interested in the petrochemical, shipbuilding or industrial gas industries; however, a CPV Manufacturing distributor is so much more than that. Your passion for helping improve processes with superior products is what’s needed to become a CPV distributor. CPV distributors fill a vital role as valve distributors in building relationships and connecting companies that are looking for solutions and the industry-leading products CPV manufactures. Our high-quality products are in demand across multiple industries, including shipbuilding, petrochemical, industrial gas, chlorine, oil and gas, and pharmaceutical.

As a valve manufacturer and pipe-fitting manufacturer, our designs are rigorously tested to meet the exacting standards required of high-pressure applications. As a valve supplier, you will be helping companies improve their applications by using the highest-quality valves and fittings. Valve distributors play a critical role in providing the critical customer support for companies that would benefit from CPV Manufacturing products. Your earning potential will be nearly unlimited as you identify opportunities that would benefit from our world-renowned products. 

For over 100 years, CPV Manufacturing has been creating solutions as a valve and pipe-fitting manufacturer. Our products are designed to withstand even the most demanding conditions across a multitude of applications.

When you become a distributor of CPV Manufacturing products, you are becoming a part of a long history of excellence, working with a company that is known for providing the highest levels of customer support to the most demanding of industries. You can rely on our unwavering commitment to excellence and lasting value—which means our products will continue to be in demand by firms all over the world. At CPV Manufacturing, we will provide you with the support you need to be successful as a worldwide distributor. To learn more about becoming a CPV Manufacturing distributor, contact us today.

What Does a Marine Engineer Do?

Of all the potential engineering careers you can choose, few are as exciting and multidimensional as a marine engineering job. The profession requires both skill and intelligence, and can provide thrilling travel on board. This is not a job for the timid or impassive. Better yet, a career as a marine engineer pays well, with satisfying salaries.

If this sounds like something fitting, keep reading to learn more. We discuss the day to day tasks, educational requirements, typical working conditions, and likely salaries.

What Is a Marine Engineer?

At its core, this profession includes designing, building, repairing, testing watercrafts such as boats, submarines, offshore platforms, and any other marine structures. A Marine Engineer applies multiple sciences, including mechanical, electrical, and electronic, and computer science.

Skills and Education Required

As with any career, there are a few distinct traits and skills that go hand-in-hand and make it easier to be in the marine engineering field. An ideal marine engineer is someone curious, methodical, and logical. It is a person who enjoys inspecting and analyzing issues. Independence is also key as many jobs require working on board.

Traits such as the ones listed above are not adequate enough to join the field. Marine engineering requires an ocean engineering degree. Typical classes required include calculus, computer courses, physics. Courses specific to the job are fluid mechanics and mechanics of materials. Furthermore, a student can look forward to spending time out on the sea to get hands-on experience.

What Does a Marine Engineer Do?

The day-to-day tasks of a marine engineer center on inspecting equipment and structures, planning and prioritizing assignments, and providing consultation to others.

You can expect to conduct tests on equipment to ensure everything is functioning properly and meeting with quality control standards. If machinery isn’t, expect to investigate and solve these issues.

Preparing technical reports for peers, managers, and other related persons is another common task. Also, overseeing estimates and budgets and managing construction schedules is another regular part of the job.

What Are Typical Work Conditions Like?

One of the most-asked questions about this career is, what are working conditions like? Can potential workers expect to work onshore or offshore? The truth is that it varies. Much of the aforementioned duties can take place in a typical office environment while many must be performed on board a watercraft.

This is just one exciting factor in the field. Another determining factor to consider is any specialization that requires one working condition to another. For instance, a marine engineer specializing in offshore drilling will spend most of the time on oil rigs.

How Much Do Marine Engineers Make?

A career as an engineer is lucrative so it comes as no surprise that marine engineering also comes with a comfortable salary. After all, the role is crucial to keeping any watercraft working.

How much can you expect to make? An entry-level position as a marine engineer starts at $65,090, mid-level earnings average to $92,560, and the top 20% earn a whopping $148,950.

If this sounds like an opportunity too good to pass up, consider the highly-rewarding career. To learn more about CPV Manufacturing, visit here.

CPV Manufacturing builds for a variety of industries

CPV Manufacturing designs valves and fitting for the unique requirements of many different industries. We have been manufacturing equipment for high-pressure applications for more than 100 years. We understand that critical applications need the highest quality valves and fittings. Our team creates equipment that can stand up to harsh environments while meeting and exceeding all industry standards. Find out more about the industries we serve and how we can manufacture the perfect valves or fittings for your unique application. 

Shipbuilding and marine valves and fitting must be reliable, durable, and easy to maintain and operate. We manufacture a huge variety of high quality fluid valves and pipe fitting for ships, including valves used on U.S. Navy ships and nuclear submarines. Our equipment is made to stand up to the vibration, pressure, and environmental conditions that affect ship’s valves and pipe fittings. Whether you are looking for hand valves, check valves, air-actuated valves, high-pressure relief valves,  or something else, we can help.

Natural gas and petroleum operations rely on precise pressurized systems for daily operations, worker safety, and environmental protection. CPV Manufacturing creates valves and fittings that are resistant to the chemicals, corrosion, and high temperatures of petrochemical facilities and operations. We meticulously test our products to ensure they are reliable, and we design our valves to lower fugitive emissions. Come to us for custom valves and fittings created for your unique petrochemical operation. 

Industrial Gas
Industrial gas operations and automated filling stations require valves and fittings that can carefully and automatically control pressure under a variety of temperature ranges. CPV Manufacturing creates pneumatic valves and control actuators for custom industrial gas operations. Our products are designed to improve efficiency and perform reliably for long periods of time. Come to our experts for more information on our industrial gas valves and control systems. 

Chlorine is very dangerous in its liquid or gaseous form and the reliability of pressurized systems that contain it are paramount. We design fluid fittings and valves that stand up to corrosion, prevent chlorine from reacting with outside substances, and prevent the release of toxic gas. Our products are carefully tested and are designed to minimize fugitive emissions from chlorine systems. Learn more about CPV’s  high quality valves and fittings designed for chlorine applications.  

Oil & Gas
Oil and gas valves and fittings are subjected to high-pressure, extreme environmental conditions, and mechanical vibration. At CPV Manufacturing, we create durable valves and fittings for the oil and gas industry that are carefully designed to stand up to these conditions. All of our valves and fittings are designed to reduce the environmental and financial impact of fugitive emissions. Our experts are here to create high-performance valves and fittings for your specific oil and gas industry applications.

Valves and fittings used in the pharmaceutical industry must perform reliably and precisely for long periods of time. CPV excels at creating valves and fittings that adhere to the most stringent standards. We know the important role our valves and fittings play in complex medical and pharmaceutical equipment. Our manufacturing experts create products like rising stem valves, soft-seated valves, and more that fit your exact requirements. 

CPV Manufacturing Announces Partnership with Global-Systems

Kennett Square, PA, USA (8 July 2019) – Admiral Valve, LLC d/b/a CPV Manufacturing announces a distribution agreement with Global-Systems of Bradenton, FL, USA.  The company, headed by Alex Weinstein, will handle CPV products across Latin America, including Central America, South America, Mexico and the Caribbean.  Markets served will be the Industrial Gas…Oil & Gas…Petrochemical.

David London, CPV President, commented, “Alex has a long history of working in the Industrial Gas and Compressed Gas markets in Latin America.  We are confident that his leadership will allow CPV products to become more widely specified and used across a broad range of industries.”

About CPV Manufacturing

For more than a century, CPV has crafted products that are recognized around the globe for their unmatched strength and dependability.  CPV builds valves and fittings that last for thousands of life cycles.  Based in Kennett Square, Pennsylvania, the company has a complete facility for developing, manufacturing and testing its products.  Dedicated workers and global partnerships allow CPV to be a leader in all of its markets.  For more information, visit or call 484-731-4000.

Price Adjustments – July 1, 2019


Kennett Square, PA, USA (31 May 2019) – Admiral Valve, LLC d/b/a CPV Manufacturing announces a Price Increase effective July 1, 2019.  Increases will average 3% across all product lines and will be implemented immediately or as existing quotations or contracts expire.

Jay Loomis, Vice President of Sales, commented, “This modest price increase is necessary to offset overall raw material price increases.  We will closely monitor our ongoing costs and strive to limit any corresponding price increases to our customers.”

About CPV Manufacturing

For more than a century, CPV has crafted products that are recognized around the globe for their unmatched strength and dependability.  CPV builds valves and fittings that last for thousands of life cycles.  Based in Kennett Square, Pennsylvania, the company has a complete facility for developing, manufacturing and testing its products.  Dedicated workers and global partnerships allow CPV to be a leader in all of its markets.  For more information, visit or call 484-731-4000.




2019 Price Adjustments


Kennett Square, PA, USA (02 January 2019) – Admiral Valve, LLC d/b/a CPV Manufacturing announces a Price Increase effective January 2, 2019.  Increases will average 3% across all product lines and will be implemented immediately or as existing quotations or contracts expire.

Jay Loomis, Vice President of Sales, commented, “Metal prices moved upward starting in early 2018 and virtually all raw material suppliers implemented substantial increases by the end of the year.  We are forced to follow suit with prices adjustments for our valves and fittings.”

About CPV Manufacturing

For more than a century, CPV has crafted products that are recognized around the globe for their unmatched strength and dependability.  CPV builds valves and fittings that last for thousands of life cycles.  Based in Kennett Square, Pennsylvania, the company has a complete facility for developing, manufacturing and testing its products.  Dedicated workers and global partnerships allow CPV to be a leader in all of its markets.  For more information, visit or call 484-731-4000.