Sunday, May 19, 2019

Reversing the Fail Action and Air Action on the Flowserve Valtek VL Actuator

The Flowserve Valtek VL series spring cylinder linear actuators are powerful, compact, high-performance pneumatic actuators that provide solid throttling or on-off operation for automatic control valves. The positioner supplies air to both sides of the piston, providing stiff, precise movement and high-frequency response and quick stroke speeds.

The VL series is the standard set of actuators for Valtek control valves, providing precise control and reliable performance. Providing maximum thrust from a compact lightweight package, the VL cylinder has set the industry standard for two generations.

For more information about Flowserve Valtek products, contact CTi Controltech by calling 925-208-4250 of by visiting

Tuesday, February 26, 2019

Flowserve Valve, Actuation and Instrumentation Portfolio

Flowserve valve, actuation and instrumentation
The Flowserve valve, actuation and instrumentation portfolio includes world-class quarter-turn, rotary, linear, control and special configuration valves. Additionally, Flowserve also offers precision actuation and instrumentation for every application, from remotely controlled, fully automated electric, hydraulic and pneumatic actuators to electronic positioners and level switches . Fail-safe isolation, on-off modulation and precision process control ensure efficient and reliable operation, even in the most hazardous environments.

Flowserve valve and actuator products deliver industry-leading performance and reliability, with embedded technologies that make them easy for operators to use and maintain. By coupling their control solutions with real-time system analysis, predictive maintenance and remote service capabilities, today's manufacturing plants get end-to-end intelligence that maximizes their uptime.

View the embedded document below, or download your copy of the Flowserve Valve, Actuation and Instrumentation Portfolio here.

CTi Controltech

Wednesday, December 12, 2018

Happy Holidays from CTI Controltech

From all of us at CTI Controltech, we wish our customers, partners and vendors a safe and happy holiday season and a wonderful 2019!

Wednesday, December 5, 2018

Mogas Ball Valve Mate Lap Seal Demo

This video demonstrates the effectiveness of the MOGAS "Mate Lap" seal provided on MOGAS severe service ball valves.

MOGAS valves have outperformed others worldwide in some of the most severe service conditions, including: Extreme temperatures; High pressures; Abrasive particulates; Acidic products; Heavy solids build-up; Critical plant safety; Large pressure differentials; Velocity control; Noise control.

CTi Controltech

Wednesday, November 14, 2018

Replace Old Boiler Damper Drives with Better Performing, Drop-in Replacements

Type K Damper Drive
Industrial dampers and louvers are used to precisely control combustion air and flue gases in power plants, refineries, powerhouse boilers, furnaces and process heaters. A damper drive is a specialized pneumatic or electric actuator that positions air and flue gas dampers on combustion based systems in industrial environments.

Damper drives can provide linear or rotary motion to meet certain application requirements. The damper positioning is a process control function that is used to increase efficiency, reduce maintenance, control harmful emissions, and lower fuel consumption.

Damper drives have been installed in commercial and industrial application for many decades, and the replacement of older and obsolete models is an ongoing concern for operators. Retro-fitting an existing damper drive application can be mechanically challenging and labor-intensive. "Drop-in" refers to fitting in the existing drive's footprint, bolting pattern, and overall size envelope, so any replacement claiming "drop-in" compatibility is favorable in terms of time and materials.

Rotork, a globally recognized manufacturer of valve and damper actuators, has developed a product series within their damper drive line that specifically addresses the drop-in replacement of legacy damper drives.

Rotork's PM and DM Series drives, a portion of the company's Type K Damper Drive line, provide rotary operation in the 30 to 100 degree range and are available as pedestal mount or direct mount versions. As a subset of this broad offering, the company has crafted the FasTrak Series, which are preconfigured as ready-made units to replace common, older legacy damper drives. Twelve models cover the most commonly occurring pneumatic or electric damper drive replacements. The manufacturer states that the FasTrak drives will:
  • Bolt to the floor where the old drive was mounted
  • The existing link rod and clevis will attach to the FasTraK drive lever
  • Simply verify envelope dimensions to assure that there are no external obstructions
A product catalog describing the full line of Type K drive can be found here. For more information, contact CTi Controltech at 925-208-425 or visit their website at

Tuesday, October 30, 2018

The Flowserve Logix 3800 Digital Valve Positioner

The Logix 3800 positioner features powerful diagnostics that identify field problems and expedite corrective actions to ensure reduced return-to-operation times.

Compatible with linear and rotary valves and actuators, the robust design of the Logix 3800 delivers high reliability in tough environments, reduces inventory costs and contributes to a lower total cost of ownership, and installs with an innovative, one-button quick calibration feature.

Partial List of Features:
  • Rugged, certified SIL 3 capable modular design delivers maximum reliability in the toughest environments. 
  • Installation and operation ease from innovative quick calibration feature to simplify commissioning. 
  • Broad application versatility with industry-leading communication technologies, including analog, HART, Foundation Fieldbus, 4-20 or discrete I/O signals.
  • Intrinsically safe, non-incendive and explosion-proof design from -52°C to 185°C (-62°F to 365°F) ensures safe, reliable operation in hazardous conditions for increased plant and personnel safety.
  • Compatible with a variety of valve and actuation configurations including: rotary or linear valves; double- or single-acting; air- to-open or air-to-close.