Lime dosing control valves August 2002, Spirax Sarco South Africa Mitech's locally designed and manufactured lime dosing control valves are erosion resistant and fit in the ring main. They have an anti-clogging design and are trim sized to suit the process data.
Rated ...
Compact actuator delivers high torque with low air consumption August 2002 The compact pneumatic quarter turn actuator, supplied by Dupleix Liquid Meters (DLM), has been developed to be simple, reliable, and efficient using a patented rack and pinion design. Four separate racks, ...
High torque rotary actuators August 2002, Spirax Sarco South Africa Mitech's high torque pneumatic rotary actuators offer a choice of double crank or scotch yoke mechanisms allowing the user to select the best mode for optimum control and cost effectiveness.
Their double ...
A new generation control valve May 2002 NelesCV Segment is a complete control valve unit containing decades of flow control experience in developing solutions for various processes
Erosion resistant dosing control valves May 2002 The locally designed and manufactured Lime Dosing Control Valves from Mitech, are erosion resistant and fit in the ring main. They have an anti-clogging design and are trim sized to suit the process data. ...
Maximising control of fugitive emissions March 2002 Safeset, a range of pilot-operated safety valves from IMI Safety Systems, has been updated in response to a growing demand for a lightweight safety valve. Its makers say that Safeset has been redesigned ...
User guide for pipeline valves March 2002 A short precautionary guide to the use of valves in pipelines is now available from DLM, the distributor of Asahi valves in southern Africa. The guide covers the potential dangers involved in installing ...
Robust metal-seated ball valves February 2002 Valvtechnologies' metal-seated ball valves are designed to operate in high temperatures, under high pressures, in erosive environments.
The integral seat design improves performance over conventional ...
Control valve retrofit October 2001 In many cases when an existing valve needs to be replaced in a plant, the valve body is still in good condition but the trim is no longer suitable, and in addition, the actuator and positioner need to ...
RF tag streamlines valve maintenance procedure September 2001 A major American gas company operates numerous gas substations throughout an environmentally harsh region. Within the substations are many valves regulating the flow and pressure of the natural gas through ...
Electronic I/O and pneumatic valve island September 2001, Bürkert South Africa, PI SA (PROFIBUS & PROFINET SA) Bürkert have developed an easy way to combine process actuation, electronic I/O and fieldbus.
In line with its strategy to offer customised system solutions at any level of process automation, Bürkert ...
Wide choice of solenoid valves September 2001 RGS solenoid valves are now available with the option of the CNOMO interface. This feature is now included on all standard 1/8, 1/4 and 1/2" remote, manifold and sub-base mounted valves, including all ...
Ensuring uniform heat distribution August 2001, Valve & Automation In low-temperature applications with broad temperature envelopes,steam tracing can be effective. However, in these types of applications, the position of the tracers and the temperature distribution in ...
Steam atomising desuperheater August 2001 In some applications it is required to reduce the temperature of superheated steam. This is achieved by adding vaporised water to the steam where the small droplets will absorb energy so the temperature ...
Mud drum blowdown valves go automatic August 2001 The manual mud drum blowdown valve is found on most boilers to clean the drum of all unwanted dirt and grime that collects at the bottom of the drum during normal operating conditions. Applications vary ...
SA's own control-valve sizing program August 2001 Mitech has recently released what it claims to be the first computerised control valve sizing program to be written in South Africa. Windows-based, this program runs on any PC operating in a Windows environment, ...
Control valve specification made fast and accurate August 2001 FirstVue valve sizing software helps the user identify the control valve package best suited to each set of service conditions. Its powerful valve selection features can be used to specify either a single ...
Fast-switching valves feature long operational lives July 2001 Experience from Formula 1 motor racing has proved that only a combination of maximum speed and stamina makes a champion. Just like the new high-speed valves Type MH...2- from Festo. Fast switching times ...
Turbine valve monitor June 2001, Switches International GO Switch/Topworx, which has been producing the ultra reliable GO switch since 1950, is offering the Defender turbine valve monitoring system. This is a simple drop-in unit that replaces the often less ...
