Valve Manufacturers and Factories

Home Valve Products Bellow Sealed Control Valve

Bellow Sealed Control Valve

Bellow Sealed Control Valve
Price: Negotiable/Piece
Trade Terms: FOB
Min Order: 1/Piece
Pay Type: L/C
TOP GUIDED
SINGLE SEATED
GLOBE VALVES

21000W Series Pneumatic Control Valve

Foreword:
21000 Series single ported, heavy top guided control valves Are manufactured with masoneilan technique and designed With built in versatility making them well-suited to handle a wide Variety of process applications. Standard features include: Top Guided Rugged, heavy top plug guiding provides maximum support to Ensure plug stability.
Lo-dB® /Anti-cavitation Trim Replacing the conventional plug with the Lo-dB® / Anti-cavitation design provides excellent noise attenuation Or cavitation control.

Reduced Capacity
A series of reduced area trim is available to provide wide flow range capabilities in all valve sizes. 21000W Series Bellow Sealed Construction:
Standard Construction
Bellows seal configuration is fully compatible with the standard 21000 Series trim and actuator options providing equivalent Capacity capabilities for each valve size. The standard packing Box design and packing design options are used as a secondary Stem seal.

Rugged Design
The formed bellows construction is an externally pressurized Design that is capable of operating up to the full valve ANSI B16.34 pressure rating. Guides are located above and below The bellows providing excellent stability to withstand flow induced And mechanical vibration.

Maximum Life
The bellows assembly is designed for 50% compression/Extension (zero stress) at the valve MID-stroke position for Maximum cycle life. Bellows torsional stresses are also minimized With the anti-rotation feature provided by flats on the plug stem. High Pressure Capability A variety of actuators are available to handle low to high pressure Drop requirements. Allowable pressure drops for specific Leakage classes are available in the catalog of 21000 series or Using the Masoneilan Sizing and Selection Program.

Tight Shutoff
Class IV leakage is standard. Optional constructions Meet IEC 534-4 and ANSI/FCI 70.2 Class V and VI.
Hardened Trim
Provided as standard to handle high pressure drop Applications.
Trim Type
Standard construction offers either a quick change or Threaded seat ring.

High Quality
Each bellows subassembly is helium leak tested to verify weld Integrity, and is also hydro-statically tested as part of the complete Valve assembly. Mechanical travel stops are also designed Into both the bellows and valve assemblies to prevent Over compression or extension.
Smart Solution
Bellows installed cycle life can be monitored in the field by Utilizing smart positioner with actual process data. This unique Preventative maintenance option will help improve plant safety By identifying potential hazardous failures before they happen, And reduce cost by eliminating premature Bellows replacement.

Bellows Materials
Standard Material
316/316L Stainless Steel
Optional Materials
Hastelloy C276
Monel 400
Inconel 625
V-FLO Group of Companies, originally known as V-FLO Pumps & Systems, was established in 2001 in the form of corporation with 14 strongest and carefully qualified pump manufacturers in China. All these 14 manufacturers are ISO certificated companies and some of them were founded as early as in 1949. V-FLO, on top of these companies and based on their cooperation with world leaders of the field including Ebara, Nash Elm, Allweiller, Boremman, Dresser, KSB, Sulzer and Byron Jackson, has grown to be the strongest pump developer, pump station solution provider and equipment supplier in China.

V-FLO started from pumps but now we are much more than the pumps. In addition to the pump manufacturing section, we have developed to cover a system engineering for EPC projects as well as general trading business, especially focusing on the design, manufacturing and OEM packaging of all types of special industrial process and production lines with supports and partnerships from all the senior R&D organizations and experienced manufacturers all over China for different industries.

V-FLO has started a new journey to serve our customers in diversified industries for power, oil & gas, chemical and other industries. This can be translated into a wide scope of services. V-FLO offers from private basement to municipal sewage treatment, from the boiler room in a high rise building to a marine pier, in processing plants, power generating stations, paper mills, construction sites, utility maintenance fleets and in farm fields as well.

V-FLO Group, with two factorices we are cooperating, has more than 2500 employees working at positions of manufacturing, R&D, sales and management. We are dedicated to strive for a higher standard of service not only in providing pumps, motors, expansion tanks, valves, specialized equipments and so on, but also in EPC, engineering design and project planning and even a lot more. Our investment in technology and research is second only to the support we give to our customers and employees. We approach the 21st century reaffirming our dedication to our customers, employees and vendors.

Send your message to this manufacturer

  • V-FLO Group of Companies

More >

Other Valve Products with This Manufacturers

About Us Valve Products Valve Manufacturers Hot Valve Valve News Valve Trade Shows Site Partners Contact Us Sitemap