Acro-Gears have released the Trumbull position indicator for buried service valves in the Water and Waste Water industry.

Benefits for using the position indicator in such locations are:

• Eliminates broken valve stems caused by over-opening or over-closing

• Field-adjustable for any number of turns within the range of each model

• Constructed of heavy-duty, non-corrosive Dupont Delrin polymer, providing high-impact resistance even in cold climates

• Double O-ring seals keep out water and dirt; 3rd-party tested to over 1 million revolutions

• Provided with stainless steel hardware

The SA-03 weighs only 1.5 Kgs and delivers a max torque of 30 Nm. Built in an aluminum anodized housing and O ring sealed to IP 67, it bears the Noah stamp of quality and reliability.

The SA series now comprise of the following models:

SA-03- 1.5 Kgs 30 Nm SA-05- 2.8 Kgs 50 Nm SA-09- 4.5 Kgs 90 Nm

Standard features:

· AC 24V/110/230V/ 1PH 50/60Hz, , DC24

· Anodised aluminum Weather proof enclosure IP 67

· Dome type indicator with LED light

· 2 x limit switches + additional dry contacts for open / close remote indication

· L wrench Over-ride

· Space heater

Options:

· Current position transmitter

· Potentiometer feedback

· 4 to 20 mA analogue positioner (under development for SA-03)

Noah SA series actuators ideally meet the torque requirements and installation and operating forces encountered in small size valves.

This is another step towards Acrodyne’s goal to customize valve actuation to meet the specific needs of the Valve Automation Industry.

The unit offers an auto calibration function which makes commissioning fast and simple.The operating menus are clear and concise offering full diagnostics which assists in field troubleshooting. The unit also comprises an Auto/Manual switch which quickly and conveniently provides supply air directly to the actuator for complete and partial stroking of the valve.

A wide range of options are available, such as HART digitally enhanced 4-20 mA smart instrument communication. Other options include 4-20mA transmitter and limit switches. PID and Alarm functions are standard.

The YT-3300 comes in either Linear or Rotaty which is NAMUR compliant. The housing is aluminium diecast to an IP66 weatherproof rating.

Acrodyne offers a wide range of mounting kits to suit most actuators and offer the services of commissioning and repairs to all YTC products.

Acrodyne are proud to announce that YTC have recently released the YT-3400 series Electro Pneumatic EXd Flameproof Positioner certified IECex ( Exd llc T5/T6). As with previous models, the YT-3400 features an easy to see LCD display offering a range of information which can be accessed via the non intrusive push buttons.

The unit offers an auto calibration function which makes commissioning fast and simple.The operating menus are clear and concise offering full diagnostics which assists in field troubleshooting. The unit also comprises an Auto/Manual switch which quickly and conveniently provides supply air directly to the actuator for complete and partial stroking of the valve.

A wide range of options are available, such as HART digitally enhanced 4-20 mA smart instrument communication. Other options include 4-20mA transmitter and limit switches. PID and Alarm functions are standard.

The YT-3400 comes in either Linear or Rotaty which is NAMUR compliant. The housing is aluminium diecast to an IP66 weatherproof rating.

Acrodyne offers a wide range of mounting kits to suit most actuators and offer the services of commissioning and repairs to all YTC products.

The new actuator shares electronics and firmware with existing Beck products. This interchangeability of electronics keeps critical spare parts common with existing Beck actuators. It also means that all the latest Beck configuration, setup and diagnostic features are available as well. These features include:

• Fast, easy setup and calibration without mechanical adjustments.

• Simplified troubleshooting with comprehensive diagnostics available.
• Compatibility with asset management systems.
• HART, Foundation Filedbus and Profibus PA interfaces available.
• Drive diagnostics and operating statistics via HART or serial interface.
• Local pushbutton/LED interface for quick setup and error checking without the need for external interfaces or devices.
• Drive configuration and calibration are restorable to as-built factory setting.
• Configurable drive stall protection

The new space efficient design not only makes mounting in space limited applications easy, the design also adds mounting flexibility. Every actuator body includes multiple mounting points to handle almost every type of mounting and connection, direct coupled or linkage connected.

• Mounts in any orientation without orientation restrictions.
• Removable mounting feet can be attached in two planes - horizontal or vertical.
• Actuator face machined for direct coupling to shaft and easy retrofit of existing Beck Group 11 or Group 31 actuators.
• The integral electronics compartment can be easily removed and remotely mounted if desired.

For full product detail and specification contact David Mohorovicic at Acrodyne.

The facility maintains a log of all the cor­rective work orders that take place during a year and the sludge valve maintenance accounted for a large portion of them in the sludge processing section of the plant. Sludge often generates a lot of grit and sand, thereby hampering the mechani­cal equipment associated with transporting it. In particular, the operation of the pneumatic actua­tors was causing intermittent problems. These actuators would stick from time to time leading to poor control capabilities.

In an effort to reduce the number of cor­rective work orders, the pneumatic actuators were replaced with Beck actuators. Beck actuators are uniquely designed electro-mechanical devices that offer constant, precise control without the per­formance and maintenance limitations of typical actuators. After three years of service in the waste water treatment plant, the number of corrective work orders for the new Beck equipment was reduced by 95%. Figures 1-3 show direct-coupled and linkage-connected Beck actuators along with typical butterfly valves that are used in the indus­try.

Figure 1

Direct-coupled Beck

actuator on Filter

Effluent Valve

Figure 2

Linkage-Connected Beck

actuators in production

Figure 3

Linkage-connected Beck actuators on Filter

Beck precision elec­tric actuators were chosen as the replacement with the first installation taking place on the Mill Cold Air dampers. Beck’s 100% continuous duty actuator had an immedi­ate impact, providing superb control capabilities along with the durability and reli­ability required for boiler applications. Four years, and nearly forty actuators later, PPG sums up the qualitative and quantitative benefits realized so far with the new Beck installs:

“Not only do we have better control of our coal and gas fired boilers (which by itself has saved us an estimated $250,000 per year in fuel costs), we are also able to eliminate thousands of dollars in PMs (preventative maintenance work orders) that to date has saved us $174,000 in parts and labor over the old pneumatic positioners that required continuous maintenance.”

Figure 1

Beck 11-209

Coal Mill

Damper

Features

• For all types of valves and application
• Complete built-in servo system
• 4-20 mA control and position signal
• 24 VDC
• Programmable with Oden Valve Program (OVP)
• Automatic Calibration
• Low weight and compact design

Benefits

• Uses the unique Oden Gear System™ providing extremely high efficiency.
• Allows easy and fast mounting without need for alignment to the valve spindle.
• No back-up accumulators or sensitive electromechanical components are used.
• Combines modern electronics with unique gear technology, providing an extremely accurate and compact actuator.

Product Range

• P30R Turning Actuator (5-30 Nm)
• P30EXR Turning Actuator (5-30 Nm)
• P50R Turning Actuator (5-50 Nm)
• P220R Turning Actuator (10-190 Nm)
• P500R Turning Actuator (10-400 Nm)

The unit offers an auto calibration function which makes commissioning fast and simple.The operating menus are clear and concise offering full diagnostics which assists in field troubleshooting. The unit also comprises an Auto/Manual switch which quickly and conveniently provides supply air directly to the actuator for complete and partial stroking of the valve.

A wide range of options are available, such as HART digitally enhanced 4-20 mA smart instrument communication. Other options include 4-20mA transmitter and limit switches. PID and Alarm functions are standard.

The YT-3400 comes in either Linear or Rotaty which is NAMUR compliant. The housing is aluminium diecast to an IP66 weatherproof rating.

Acrodyne offers a wide range of mounting kits to suit most actuators and offer the services of commissioning and repairs to all YTC products.

Features

• For all types of linear valves and applications
• Complete built-in servo system
• 24 VDC
• 4-20 mA control and position signal
• Programmable with Oden Valve Program (OVP)
• Automatic calibration
• Low weight and compact design.

Benefits

• Uses the unique Oden Gear System™ providing extremely high efficiency.
• Allows easy and fast mounting without need for alignment to the valve spindle.
• No back-up accumulators or sensitive electromechanical Components are used.
• Combines modern electronics with unique gear technology, providing an extremely accurate and compact actuator.

Product Range

• P30L Linear Actuator (3-12 kN)
• P30EXL Linear Actuator (3-12 kN)
• P50L Linear Actuator (4-16 kN)
• P220L Linear Actuator (6-40 kN)