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Larox Flowsys control valves are designed for demanding control applications in which conventional valves encounter problems with turbulence and wear.

Control can be further improved with conical sleeves (reduced ported for the exact Cv required) or smart positioners.

Elastic sleeves have been applied for improved wear resistance.

Each valve can be sized and optimised for the optimal control range in order to limit wear and velocity and also to prevent cavitation from occurring in the control valve.

Larox control valve sizing is based on the international IEC60534 standard (harmonised with ANSI/ISA S75 standards).

The valve flow coefficient Cv defines the control valve flow capacity – or, in other words, the valve size (diameter).

The optimal control range of the Larox valve is between 10 and 50 per cent of the opening.

Larox offers accurate control and a long service lifetime in demanding slurries.

The company can provide a complementary control valve sizing program.

A control valve’s flow coefficient Cv – and thus the valve size – is a result of various process conditions.

Control valve sizing and selection is also the result of a series of process conditions – flow rate range, slurry-specific gravity (sg) and pressure difference over the valve define the valve flow coefficient range (Cv) for which a control valve is sized and selected.

Larox control valve actuators are equipped with positioners.

The standard signals for various actuators are as follows.

For electro-pneumatic (AK) actuators, the input signal is 4-20mA.

For pneumatic (AN) actuators, the input signal is 0.2-1bar.

An integrated 4-20mA module can also be positioned inside the pneumatic actuator.

For electro-hydraulic (HP) actuators, the input signal is 4-20mA.

For electronic (EO) actuators, the input signal is 4-20mA.

Larox was awarded the ISO9001:2000 quality certificate in 1997.

In addition, the company’s valves meet the ANSI/ISA 75.10.02 pinch valve standard.

Larox Flowsys Pumps and Valves Take Flow Control Technology to New Heights.

Larox Flowsys is the preferred supplier of industrial valves and pumps. They focus on abrasive, corrosive and other demanding shut-off, control and pumping applications serving a wide range of process industries worldwide. Their solutions offer substantial savings through improved performance, longer service lifetime and lower maintenance costs.

With decades of experience in flow control and elastomer technology, Larox Flowsys is at the forefront in addressing customer needs and making customers’ processes more competitive. Larox Flowsys valve and pump solutions have proven their suitability for a wide range of industries and applications. They work in partnership with clients to specify, design and deliver the optimal solution.

Larox Valve and Pump Products Include: Automatic Pinch Valves, Manual Pinch Valves, PVEG Valves, Heavy Duty Knife Gate Valves, Valve Sleeves and Peristaltic Pumps for Transferring Duties (LPP-T), for Dosing Duties (LPP-D) and for Accurate Metering (LPP-M).

LArox Flowsys has recently alunched a new series of progressive cavity pumps to supplement its peristaltic pump family. Larox Progressive Cavity pumps are engineered for the most demanding industrial slurry and paste pumping applications. Due to pump’s unique features and patented design, high efficiency and high pressure are acheived in a shorter construction.

Larox Flowsys’ international sales and service network covers over 55 countries. More than 600 qualified manufacturer’s representatives provide service you can count on. Larox Flowsys was the first pinch valve manufacturer in the world to get awarded the ISO9001:2000 Quality Certificate in 1997.

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