Showing posts with label control valve. Show all posts
Showing posts with label control valve. Show all posts

Mead O’Brien: Committed to Customer Needs in Evolving Industrial Environments

Industrial Process Solutions

Mead O’Brien began operations in 1961 with a clear purpose: to supply reliable industrial process solutions that help organizations run safely and efficiently. Over the decades, it has built a reputation for quality by providing valves, actuators, and process instrumentation to customers in Missouri, Kansas, Nebraska, Iowa, Oklahoma, Arkansas, Southern Illinois, Indiana, Western Kentucky, and the Texas Panhandle. This consistent focus on dependable products and attentive service has allowed the company to grow and adapt in ever-changing markets.

Leaders at Mead O’Brien understand that each market demands specialized equipment and expertise. The company supports Power Generation facilities by delivering products that withstand extreme temperatures and pressures while meeting strict safety standards. Refining and Chemical Processing offers valves and instrumentation that maintain process integrity and reduce downtime. The Pipeline sector relies on Mead O’Brien’s knowledge of flow control and leak prevention, while Tank Farms and Terminals benefit from equipment that ensures accurate measurement and efficient product transfer. Food and Beverage operators seek hygienic solutions that safeguard product quality, and Process and Packaging environments require devices that keep production lines running smoothly and consistently.

In Engineering Services, Mead O’Brien collaborates with project teams to specify the equipment for complex installations. This approach streamlines planning and prevents costly mistakes. Water and Wastewater Treatment facilities depend on the company’s ability to recommend valves and instruments that handle corrosive materials and maintain regulatory compliance. HVAC Systems often need components that optimize energy usage and maintain comfortable conditions, and Mead O’Brien supplies these items while backing them with practical advice on best practices.

Quality products play a significant role in the company’s longevity. Mead O’Brien selects items from manufacturers who prioritize performance, durability, and compliance with industry regulations. This approach eliminates frequent failures, reduces maintenance expenses, and ensures that customers confidently operate their facilities. When a plant manager invests in valves or actuators that stand up to continuous usage, that manager saves time and money. Mead O’Brien recognizes that this level of reliability benefits both the end user and the broader operation.

Outstanding customer service also drives Mead O’Brien’s long track record. Team members prioritize timely communication and practical problem-solving in every interaction. customers consult with technical staff who understand the specific demands of each process, and those staff members use their knowledge to recommend suitable products. This focus on helpful support and honest guidance builds trust, which leads to repeat business and solidifies the company’s reputation in competitive markets. Management at Mead O’Brien also invests in ongoing training so employees stay informed about emerging technologies and updated regulations.

Although product quality and service set Mead O’Brien apart, fair pricing remains equally important. Customers often balance tight budgets with the need for durable, high-performing solutions. Mead O’Brien helps by working with suppliers to secure favorable terms and passing those savings to customers. This effort demonstrates that delivering value matters to the company’s leadership.

Mead O’Brien proves that “standing the test of time” depends on more than favorable circumstances. The company’s success reflects a deliberate focus on meeting customer needs, selecting top-tier equipment, and maintaining competitive pricing. Customers  rely on its services in various industries because they see a provider that understands their challenges and responds with proven solutions. By dedicating itself to these principles, Mead O’Brien remains a stable partner for those who demand consistent performance and trustworthy expertise.

Mead O'Brien
https://meadobrien.com
(800) 874-9655

Segmented or V Ported Ball Valves

Metso Neles segment ball valve
Metso Neles segment ball valve
Ball, plug and butterfly valves all belong to a class of valves commonly referred to as "quarter-turn" valves. This refers the 90 deg (angular) rotation required to go from full closed, to full open position.

In most cases standard ball, plug, or butterfly valves are not the best choice as control valves (where the process media has to be modulated or throttled). Standard ball, plug and butterfly valves usually introduce very non-linear, dynamic flow coefficients. Furthermore, they can introduce undesirable turbulence to your piping system.

As a means to linearize flow coefficients and reduce turbulent flow, the machining, or characterization, of the valve disk is done so that the machined shape allows for more optimized flow.

For ball valves in particular, machining the ball's flow port with a "V", or even by machining the ball more radically, can deliver excellent flow curves. A term for a more radically machined ball is the "segment ball" (sometimes called "segmented").  In the following video you can see how a Metso Neles segment ball valve is designed to provide excellent control.

For more information about Metso Neles valves, contact Mead O'Brien at  (800) 892-2769 or visit http://meadobrien.com.

A Valve Controller Designed to Operate on All Control Valve Actuators in All Industries

Neles ND9000
Neles ND9000

Metso's Neles ND9000 is a top class intelligent valve controller designed to operate on all control valve actuators and in all industry areas. It guarantees end product quality in all operating conditions with unique diagnostics and incomparable performance features. ND9000 is a reliable and future-proof investment with Metso FieldCareTM life-time support.

Features
  • Benchmark control performance on rotary and linear valves
  • Superior diagnostics and data storage capabilities
  • Local and remote configuration
  • Easy interpretation of diagnostics data
  • Efficient mounting program for all types of actuators
  • Low power consumption
  • Available for HART, PROFIBUS-PA and FOUNDATION Fieldbus networks
  • Reliable and robust design
  • Device self diagnostics
  • On-line, performance and communication diagnostics
  • Hot swap support: possibility to install also on valves that are in process with 1-point calibration feature
  • SIL 2 approved device
Benefits
  • Minimize variability
  • Open solution based on FDT technology
  • Supports Electronic Device Description Language (EDDL) technology
  • Total cost of ownership
  • Easy to use
  • Open solution
  • Product relibilty
  • Prevention and prediction
Applications
  • ND9000 can be integrated with all major DCS systems
  • Mounting kits for any 3rd party actuators
  • Remote mounting
  • SIL 2 approved
  • Marine approved

Triple Eccentric Disc Valve, Metal Seated, with Flow Balancing Trim

Triple Eccentric Disc Valve Metal Seated with Flow Balancing Trim
Neles Triple Eccentric Disc
Valve, Metal Seated with
Flow Balancing Trim

TRIPLE ECCENTRIC SEATING PRINCIPLE

The disc of the valve is machined to close tolerances to create an elliptical shape similar to an oblique slice taken from a solid metal cone. When the valve is closed, the elliptical disc at the major axis displaces the seat ring out- ward, causing it ring to contact the disc at the minor axis. When the valve is opened, the contact is released and the seat ring returns to its original circular shape.

CONTROL STABILITY AND SUPERIOR TIGHTNESS

The S-DISC® control valve unit provides outstanding control performance and excellent long-lasting tightness in the same valve. The very simple and robust construction guarantees long trouble-free operation and maximum reliability.

The S-DISC design consists of a standard NELDISC® triple eccentric disc valve equipped with a flow-balancing trim. The trim has been located on the downstream side of the valve body. The ingenious idea of this design is to transfer fluid forces out of the disc to the body. 
triple eccentric disc valve

triple eccentric disc valveFigures 2 and 3 illustrate the flow treatments with a concentric-type conventional butterfly valve compared to the S-DISC-design. The S-DlSC design offers stable flow control and reduced dynamic torque, noise level and vibrations. The dynamic behavior of the valve is very smooth and stable, which means less load on the shaft bearings, less required torque, smaller actuators and more economical control unit total costs. All of the excellent features of the standard NELDISC are available.

The most standard NELDISC can be easily modified to the S-DISC design, just by changing the flange ring.


FEATURES
  • Excellent flow and control performance.
  • Wide temperature range from -200 ... +600 °C /-330 ... +1110 °F.
  • Reduced dynamic torque and noise.
  • Mechanical and flow dynamic stability allows higher pressure drop service than a conventional disc.
  • ASME 150/PN 20, ASME 300/PN 40 and ASME 600/
  • PN 100.
  • Sizes DN 80...1500/3"...60"
For more information, visit http://www.meadobrien.com or call (800) 892-2769 for immediate service.