Valtek MaxFlo 3 Control Valve

The Flowserve Valtek MaxFlo 3 control valve is a high performance eccentric rotary plug valve designed for the process industry. It features a large capacity, standard hardened trim and superior shaft blow-out protection. This valve is available in sizes 1 through 12 inches, ANSI Class 150 through 600 as well as DIN PN16, PN40 and PN63.

Click to enlarge
4 images available

  • Brands:
    Valtek
  • Applications:
    Pulp and Paper, Water Boosting, Water Cooling, Synthetic Fuels, Synthetics, Power Generation, Syrups, Water Treatment, Safety Systems, Organic Chemicals, Scrubbers, Petroleum Distribution, Toxic Services, Pharmaceuticals, Plastics, General Purpose, Utility, Valuable Liquids, Pollution Control, Slurries, Polymers, Water, Process, Waste Water, Sump Service
  • Industries:
    Condensate Systems, Utilities, Cooling Systems, Waste Processing, Cooling Water - Metals, Distillation, Gas Treatment, Gas-to-Liquids, Power Generation, Miscellaneous Services, Polymers, Auxiliary, Slurry Processing, General Industries, Slurry Transfer, Solvents, Steam Systems, Chemical and Liquor, Volatile Organic Compounds
  • Standards:
    DIN EN 1275, ISO, ASME (ANSI)

The Flowserve Valtek Maxflo 3 Control Valve is a high performance eccentric rotary plug valve. Its high capacity makes this valve extremely economical because, in many cases, it is appropriate to use a Maxflo 3 valve a size small than the competitors' choice.

Hard-alloy trim is standard, with even harder alloys, ceramic, or soft-seated trims optional, all with several choices of reduced capacity to closely match the Maxflo 3's capacity to the demands of the system. An optional ISA 75.08.01 or DIN EN 558-1/2 series 37-38 long-pattern body makes this valve an easy drop-in replacement for a globe control valve.

Environmentally friendly rotary shaft seals last longer and seal tighter than shaft seals in rising-stem valves. PTFE-Chevron packing is standard, with many other choices and special environmental packings available for when even extra consideration is needed. 

An internal Megastream® noise-reduction device is available to reduce noise by typically 10dB in gaseous services. The Megastream® diffuser does not affect the valve's installation dimensions and is easily serviced with the same tools used for the standard Maxflo 3 maintenance. 

The Maxflo 3 is suitable for up to 90% of all applications. This valve is available in pressure classes 150 through 600 (PN 15-63). Rangeability exceed is 160:1. Temperature ratings of -150F to +750F (-100 to 400C), and body materials of Carbon Steel, Stainless Steel and Chemical-Resistant Alloys. The non-crossover shaft and the valve's straight-through flowpath give the Maxflo 3 a very high capacity for its size and make it resistant to erosion, flashing and light cavitation. 

Features

  • For exceptional safety, the bonnet retains the valve shaft which cannot blow out even if the actuator is removed with the valve pressurized
  • Economical for common service applications because of wide rangeability and tight (Class IV) shutoff
  • Available in sizes 1 through 12 inches (DN25-300)
  • Available in ANSI Class 150 through 600 as well as PN16, PN40 and PN63
  • Available in Wafer, Flanged and long-Pattern flanged

Show/hide all languages

Showing all languages below...

Flowserve Valtek Spring Diaphragm Rotary Actuator User Instructions (IOM) (Spanish)

Flowserve Valtek Spring Diaphragm Rotary Actuator User Instructions: Installation, Operation and Maintenance Manual (IOM) (Spanish)

Flowserve Valtek Spring Diaphragm Rotary Actuator User Instructions (IOM) (French)

Flowserve Valtek Spring Diaphragm Rotary Actuator User Instructions: Installation, Operation and Maintenance Manual (IOM) (French)

Valtek MaxFlo 3 Safety Manual SIL

This Safety Manual provides information necessary to design, install, verify and maintain a Safety Instrumented Function (SIF) utilizing a Flowserve MaxFlo 3 Valve and Diaphragm Actuator. This manual provides necessary requirements for meeting the IEC 61508 or IEC 61511 functional safety standards.

Valtek Rotary Control Valve Poster

The Valtek rotary control valve posters includes Valbart control ball valves, MaxFlo 3 eccentric plug valves, ShearStream segmented ball valves, and Valdisk double off-set butterfly valves. The poster also include pneumatic actuator and digital positioner options.

Logix 3200MD SIL Certificate

Logix 3200MD Digital Positioner SIL certificate

Valtek MaxFlo 3 Control Valve User Instructions (IOM)

Valtek MaxFlo 3 Control Valve User Instructions: Installation, Operation and Maintenance Manual (IOM)

Valtek MaxFlo 3 Control Valve Technical Brochure

This technical brochure provides technical details on the application and use of the Valtek MaxFlo 3 Control Valve.

Valtek MaxFlo 3 Control Valve Brochure

This brochure showcases the features and advantages of the Valtek MaxFlo 3 High Capacity Eccentric Rotary Plug Control Valve.

Valtek MaxFlo 3 TA-Luft Fugitive Emissions Certificate

Valtek MaxFlo 3 TA-Luft Fugitive Emissions certificate

Valtek MaxFlo 3 Verkaufsbroschüre

Gelesen über die eigenschaften und vorteile des Valtek MaxFlo 3 regelventile

Manuel d'Utilisation Valtek MaxFlo 3

Installation, Fonctionnement et Entretien de la vanne de régulation Valtek MaxFlo 3

Valtek MaxFlo 3 TA-Luft Packing Certificate

Valtek MaxFlo 3 Control Valve TA-Luft Packing certificate

Valtek MaxFlo 3 ATEX Certificate

Valtek MaxFlo 3 Eccentric Rotatry Plug Control Valve ATEX Certificate for those equiped with its NR Diaphragm Actuator.

Valtek MaxFlo 3 Control Valve User Instructions (IOM)

Valtek MaxFlo 3 Control Valve User Instructions: Installation, Operation and Maintenance Manual (IOM)

Valtek MaxFlo 3 Control Valve User Instructions (IOM)

Valtek MaxFlo 3 Control Valve User Instructions: Installation, Operation and Maintenance Manual (IOM)

Valtek Rack & Pinion and Scotch Yoke Actuators Technical Brochure

This technical brochure provides technical details on the application and use of the Valtek Rack & Pinion and the Valtek Scotch Yoke Actuator.

Valtek MaxFlo 3 Technisches Datenblatt

Gelesen über den Valtek MaxFlo 3 configurationen und vorhandene optionen

Valtek MaxFlo 3 Valve SIL Certificate

Valtek MaxFlo 3 Control Valve and Diaphragm Actuator SIL certificate

Valtek MaxFlo 3 Betriebsanleitung

Einbau, Funktionsweise und Wartung der Valtek MaxFlo 3 regelventile

Manuale d'istruzioni Valtek MaxFlo 3

Installazione, Funzionamento y Manutenzione de la valvole di regolazione Valtek MaxFlo 3

Valtek GOST R Certificate

Valtek GOST R certificate

Valtek MaxFlo 3 Handleiding

Installatie, Beidiening und Onderhoud des Valtek MaxFlo 3 Regelkleppen

Documentation Commerciale Valtek MaxFlo 3

Explique les spécificités et avantages de la vanne de contrôle rotative Valtek MaxFlo 3

Flowserve Valtek Spring Diaphragm Rotary Actuator User Instructions (IOM)

Flowserve Valtek Spring Diaphragm Rotary Actuator User Instructions: Installation, Operation and Maintenance Manual (IOM)

Bulletin Technique Valtek MaxFlo 3

Découvrez les différentes options et possibilités de configuration de la vanne de contrôle Valtek MaxFlo 3

500si Digital Positioner

Description: The Flowserve Logix 500si digital positioner represents the next generation of the intrinsically safe Logix 500 family. The positioner comes in two models. The Logix 510si positioner is a 4-20 mA analog positioner that offers all the advantages of digit

3200 Digital Positioners

Description: The Flowserve Logix 3200 Digital HART® positioner utilizes state-of-the-art piezo technology to provide superior performance and reliability. The Logix 3200 can be easily configured using the local buttons, HART handheld, and ValveSight software.

XL90 High Performance Analog Positioner

Description: The Flowserve XL 90 series, two-stage positioner offers fast and sensitive dynamic response characteristics to meet extremely demanding control objectives. The positioner is available with either an electro-pneumatic (I/P) transducer module for milliamp c

Ready to buy?

1. Find your closest Flowserve sales contact by using our global sales contacts locator.

2. Call or email the Flowserve sales contact and provide your required specifications.

Still gathering information?

To learn more about Flowserve products, subscribe to our e-mail newsletter.

  
Ask a Question

Required Fields












Please choose which of the following best describes you: