Valtek Valves by Flowserve
Carotek is a stocking distributor and representative for Valtek valves, a division of Flowserve. Carotek will stock these valves in North Carolina, South Carolina, and Virginia and offer local control valve assembly and automation. We offer extensive education – at Carotek offices, Flowserve resource center, online, or at your facility.
Valtek Valve Product Selection
Founded in 1965, Valtek valves are known for reliability, long life, parts interchangeability, ease of maintenance and prompt delivery. The following detailed information provides an overview of each product line. Contact Carotek for engineering support, technical assessments, reliability services and asset optimization to ensure your process application efficiency.
Valtek Linear Globe/Angle Control Valves
The Valtek Mark One globe control valve offers superior performance in liquid and gaseous services, while also permitting easy, fast and inexpensive maintenance. The spring-cylinder actuated Mark One valve provides stiffness and maintains high positioning accuracy, repeatability, controlled high speed, and faithful response.
The Mark One-X offers a cost-effective means of installing a small valve in a much larger line without line reducers or expanders. It is identical to a standard Mark One except for its body, which has expanded outlets.
Mark One™ Three-Way
A three-way version of the Mark One, this valve is used for combining or diverting service. Like the Mark One, it offers superior performance in liquid and gaseous services in simple, rugged design.
The Valtek GS (General Service) is a fully integrated valve-actuator-instrumentation package for a continuous process, non-critical flow loop controlled throughout the plant. Engineered from the ground up, the Valtek GS has achieved optimum performance at minimum total cost. It does this by pursuing the simple design philosophy of building an instrumented control valve package that is “everything it needs to be” by providing the breadth and depth of engineered control under the Valtek trusted name.
The Valtek Mark 100 is a large control valve designed to meet the needs of large applications. The Flowserve Mark 100 globe control offers the highest flow capacity, as well as fast, easy maintenance in both gas and liquid control. The Mark 100 also has longer stroke lengths, providing finer control and resulting in superior process control in smaller valve sizes.
The Mark 200 is one of the most dynamic Flowserve control valve offerings. Designed to accommodate a broad spectrum of trim options, the Mark 200 provides increased control and protection while significantly reducing noise and cavitation
The Mark Eight features a unique Y-style globe body that provides higher flow capacities and less process turbulence than conventional globe valves.
Fabricated from bar stock, the Mark Two is an extremely versatile automatic control valve. It is available in many different configurations with short lead times, even in high-pressure classes or special alloys.
The FlowTop control valve is a high-performance, general application valve coupled with the high-thrust FlowAct pneumatic diaphragm actuator. The modular design allows you to use the same body with different types of bonnets, trims and actuators. This leads to the reduction of spare parts and offers an interchangeable valve for a broad range of industries and applications.
Valtek Quarter-Turn Control Products
Segmented Ball Valves - ShearStream HP
- The Valtek ShearStream™ is a segmented, ball control valve that provides exceptional control and rangeability for the process industries. Segmented ball controls very low flow rates and can open up to large flow rates, resulting in a 300:1 turndown
- Segmented ball provides shearing action as it moves through the seat to cut through debris and provide reliable shutoff
- Metal, soft, and heavy duty seat options provide reliable tight shutoff for a variety of applications and process conditions
Eccentric Plug - MaxFlo 4
The Valtek MaxFlo 4 is an eccentric rotary plug control valve for applications demanding higher range-ability, precise control and higher flow capacity.
Valtek Severe Service Control Valves
Valtek line of control valves for severe duty are designed to meet a variety of challenging applications. From noise reduction to cavitation solutions, high capacity to pneumatic actuators.
Noise Reduction Control Valves
MegaStream control valve trim reduces control valve noise and vibration in a wide range of gas applications. MegaStream works to reduce noise by up to 30 dBa through staging, frequency shifting, attenuation and velocity control.
Stealth control valve trim reduces control valve noise and vibration in the most demanding gas applications. Stealth combines new advances in noise control with previously proven technologies to create the most effective device capable of eliminating noise in the most demanding services.
TigerTooth control valve trim creates multi-staged pressure drops that are effective in reducing noise and vibration in gas services and in eliminating cavitation in liquid services. TigerTooth effectively reduces noise and vibration in gas services by up to 35 dBa through staging, attenuation and velocity control. TigerTooth uses multi-stage pressure drops to eliminate cavitation in liquid services.
Cavitation Solution Control Valves
ChannelStream trim prevents cavitation from forming and minimizes hydrodynamic noise even in the most challenging liquid applications. Staged pressure drops eliminate cavitation by maintaining pressure above the vapor pressure—never allowing cavitation to form.
CavControl valve trim lowers cavitation damage by controlling the location and concentration of cavitation vapor bubble implosions in an area away from metal parts. CavControl trim utilizes a number of small, diametrically opposed flow holes through the walls of a special seat retainer.
CavStream valve trim lowers cavitation damage by controlling the location and concentration of cavitation vapor bubble implosion in an area away from metal parts. CavStream trim utilizes a number of small, diametrically opposed flow holes through the walls of a special plug
DiamondBack trim prevents cavitation from forming and minimizes hydrodynamic noise even in the most challenging liquid applications. Staged pressure drops eliminate cavitation by maintaining pressure above the vapor pressure, never allowing cavitation to form. DiamondBack combines new advances in pressure drop management with previously proven technologies to create the most effective device capable of eliminating cavitation in the most demanding services.
SideWinder trim prevents cavitation from forming and minimizes hydrodynamic noise in high pressure drop, low flow applications. Staged pressure drops eliminate cavitation by maintaining pressure above the vapor pressure, so that cavitation never forms. Using the proven DiamondBack advanced pressure drop mechanisms in an axial flow configuration producing precise control in low flow conditions.
The StarPac 3 offers repeatability, accuracy and quick system response time with a small footprint and simple installation. It can stand alone or be integrated into a system, and is available for a variety of applications including oil and gas, chemical, paper, mining, industrial gases and power generation.
Erosion Resistant Control Valves
The unique Survivor control valve design solves the harshest erosion, corrosion and flashing applications. With a variety of ceramic trims available, no other valve will last longer - even in applications with demanding flashing and erosive particulate.
High Performance Butterfly Control Valves
The Valtek Valdisk™ is a double offset butterfly valve used whenever high capacity is needed with the lowest possible pressure loss
The Valtek Valdisk TX3 is a triple offset butterfly control valve with an elliptical sealing surface that is completely in-contact at the final position only, and upon opening, all contact points are released immediately from the seat ring.
Linear - FlowAct
The FlowAct pneumatic diaphragm actuator is a high-thrust, multi-spring actuator for direct or reverse action — easy installation and field reversible without additional parts.
Linear - VL-C
The Flowserve VL-C spring cylinder linear actuators are powerful, compact, high-performance pneumatic actuators that provide solid throttling or on-off operation for automatic control valves. For applications where aluminum materials are not acceptable, Flowserve offers the compact, lightweight and high thrust of the VL-C carbon steel spring cylinder linear actuator. Offering identical springs and all the advantages of VL actuators, the VL-C actuator replaces all aluminum parts with carbon steel.
Rotary – NR
The Valtek NR diaphragm actuator is a compact actuator with high torque and pneumatic stiffness for excellent throttling capabilities. The splined shaft connection eliminates backlash for precise control. Designed for supply air pressures to 80 psi (6 Bar). The high stiffness and rolling diaphragm provides firm control from 0 to 90 degrees
Rotary - VR
The Valtek VR rotary cylinder actuator is a high pressure, compact actuator with high torque and pneumatic stiffness for excellent throttling capabilities. The standard splined shaft connection eliminates backlash for precise control. Designed for supply air pressures to 150 psi (10.3 Bar) to eliminate the need for a pressure regulator. The high stiffness provides firm control from 0 to 90 degrees.
Digital and Analog Positioners
High-performance and push button “Quick Cal” or “self-calibration”.
The Flowserve Logix® 520MD+ Digital HART® Positioner utilizes state-of-the-art piezo technology to provide superior performance and reliability. The Logix 520MD+ Positioner is designed to withstand severe environments; it is equipped with over 130 helpful warning alarms that can warn against potential failure of the valve, actuator, and positioner. When utilized with the ValveSight™ DTM Software many diagnostic tools are available to quickly diagnose problems and potential issues.
The Flowserve Logix® 3200MD+ Digital HART® Positioner utilizes state-of-the-art piezo technology to provide superior performance and reliability. The Logix® 3200MD+ can be easily configured using the local buttons or the ValveSightTM DTM. The Logix® 3200MD+ is designed to withstand severe environments; it is equipped with over 100 helpful warning alarms that can warn against potential failure of the valve, actuator and positioner. When utilized with the ValveSightTM DTM Software many diagnostic tools are available to quickly diagnose problems and potential issues.
The Valtek NT 3000 Series Electro-Pneumatic Transducer is an active I/P Transducer that is used with a milliamp electricl control signal. It is interchangeable with the XL Series or Beta Series Pneumatic Positioners and can be mounted on either Valtek Linear or Valtek Rotary Actuators without modification
The Valtek Beta Positioner is a robust analog positioner platform used for control of single or double acting actuators.
The Valtek XL / XL90 Positioners make a robust high-performance analog positioner platform for control of single- or double-acting actuators.
Flowserve is the recognized world leader in supplying pumps, valves, seals, automation, and services to the power, oil, gas, chemical, and other industries. With more than 15,000 employees in more than 55 countries 55 countries, Flowserve combines global reach with a local presence.