Besides O&G Engineering (Formerly known as Pro Cahaya Engineering Sdn. Bhd.) as valve distributors and suppliers, we are also providing a solution as an integrator of control and automation system for process in oil and gas, petrochemical, chemical industry and power generation. We do design and integrate a complete control system solution to increase the efficiency and productivity of the manufacturing system with our partner. We are specialized in a various range of instrumentation and control solution that meets our customer requirements and demand. These services are provided for custom projects such as control system engineering, system migration, panel design, fabrication, installation, testing & commissioning, instrumentation and project management. 

The PLC function by receiving information from connected sensors, data processing and triggers output based on pre–programmed parameters. The team has wealth experiences working with PLCs so our customers can assure quality services and reliability. PLC System will provide onsite field instrumentation of the control panels and connect to the existing and supplied equipment. We cover plc calibration and test for common aspects such as temperature, pressure, vacuum and control devices. We believe that it is fundamental to leverage new and well-established technologies against operational problems that exist with the upstream and downstream of the oil and gas industries. Our objective is to be a trusted one-stop solution valve, control system and instrumentation service provider capable of integrating our customers’ industrial network, instrumentation calibration and control system. Our customers can be assured that we deliver Control Solutions with correct technical equipment and supplies safely. 

From years of experiences, we can supply a complete end to end service from the initial concept to ongoing PLC installation, maintenance and training. Depending on business requirements, the team have a range of solutions that include programming on the system for the high and low application. These solutions can incorporate a broad range of applications using safety systems, batch systems, plant control systems and any type of communication paths such as Ethernet TCP/IP, Profibus or Modbus protocol. Upgrade system is the following maintenance support that includes as an option to ensure our customers always stays updated in terms of technology. 

O&G Engineering has successfully implemented hundreds of project solution using Siemens PLSs and extensive experience with all aspects of the SIMATIC development environment. Our engineers certified in Siemens PCS7 include safety systems, networking and Profibus / Profinet communication. We have also experiences in upgrading or replace existing old equipment while continuing to utilize existing equipment to increase productivity with zero downtime.  

We always get questions from customers and one of the common questions is “Why the actuator is not functioning?” Besides having instrumentation and valves maintenance, O&G Engineering (Formerly known as Pro Cahaya Engineering Sdn. Bhd.) does also provide actuator maintenance services to our customers. Malfunction of actuators always depends on the type, systems and many other reasons that cause it isn’t working. In order to have a better understanding, here is a list of reason why your actuator doesn’t perform properly. 

BOTH PNEUMATIC ROTARY AND PNEUMATIC CYLINDER ACTUATORS 

1. The valve is binding. 
2. The motive pressure is incorrect. 
3. The solenoid voltage is incorrect. 
4. The solenoid ports are plugged.

PNEUMATIC ROTARY ACTUATORS
The system leakage in front of the actuator is not allowing the minimum SCFM (standard cubic feet per minute) for operation. 

1. The system or actuator filter is blocked or clogged. 
2. The actuator ports are plugged with contaminants. 
3. The speed controls are closed. 
4. There is too much condensation. 
5. The spring return units have broken springs. 
6. There are problems with the seals. 
7. The actuators are undersized.

PNEUMATIC CYLINDER ACTUATORS 

1. Air is leaking at the piston guide bushings. 
2. There is increased thrust due to valve issues. 
3. There is excessive side loading in rotary applications. 
4. The piston seals are leaking. 
5. Electric, or motor-operated-valve (MOV), actuators 

ELECTRICAL ISSUES 

1. The power voltage isn’t correct. 
2. The control voltage isn’t correct. 
3. The fuse has blown. 
4. There is a power board failure. 
5. The wire has become fused or disconnected. 
6. The thermal overload is engaged. 
7. The power phasing is incorrect. 
8. The limit switch is not set correctly. 
9. The quick disconnect harness is loose.
    

MECHANICAL ISSUES 

1. There are problems with the valve binding or the stem. 
2. There are problems with the drive nut. 
3. The centre column gear is stripped. 
4. The motor pinion/worm gear is stripped. 
5. The torque switch is engaged. 
6. The handwheel declutch has failed. 
7. The valve and the actuator aren’t in the same orientation. 
8. The key is not installed. 
9. There are shipping plugs in the gas supply, exhaust ports, or tubing connected to the gas hydraulic tanks. 
10. The power gas pressure is too low. 
11. The speed controls are closed. 
12. The valve is stuck. 
13. The hydraulic fluid level is too low. 
14. The hand pump has failed. 
15. The actuator seals have failed. 

This preventative maintenance guide can help to keep your actuators in good condition before you start dismantling apart your actuators. If it still not working, do contact us for on-ground support and maintenance service to minimize your risk and plant downtime. 

For more information, you may find out from Our Services. 

Source: https://alliedvalveinc.com/the-valve-expert/40-reasons-actuator-isnt-working/ 

With the growth of our country economy, we deliver consistent result years after years, as it is our ultimate intent to diversify into a wider area of engineering works and manufacturing. It is also important to provide after–sales service for our customers’ in valve and instrumentation control maintenance solution. These valves are the final control elements which ultimate important to keep the process operate in term of flow, level, pressure and temperature. Automated valves and instruments are sophisticated, intelligent devices comprised of sensitive electronics and complex designs. With the complexity coupled with a shortage of technical workforce in the field, our team is always ready to improve repair efficiency and maintenance of instruments assets.  

The O&G Engineering (Formerly known as Pro Cahaya Engineering Sdn. Bhd.) team understand that the service and repair of the valve and instruments is a critical and specializes aspect of customers’ operations. We have the experience and expertise to offer a competing service and maintenance solution for both planned and reactive maintenance needs from customers.   

In valve manufacturing, product quality is much related to consistency, the products that we provide are always same every time, if it isn’t, we know that there is a risk to throw the product away or disappointing our customers’ expectations. Consistency in our products relies on the consistency of the process. By providing the right valve size and type installed in good working order to reduce our customers‘ process variability and in turn, to maintain consistently high product quality. In O&G Engineering, we have four major valve manufacturer brands that compliance with quality standard to serve various industries.  

Bray – With 30 years of field application experience, Bray products meet the stringent requirement of today’s flow control industry. They are the largest manual and automated butterfly valve manufacturer in the western hemisphere. The modular products line of valves, actuator, accessories offers the best compatibility of customers’ requirements and needs. Bray manufacturing facilities are certified to ISO 9001 quality standards, assuring products quality, precision manufacturing and internal process integrity. 

KCM – Perfect valve quality originates from advanced manufacturing methods; every part of the products is made in compliance with international standards to ensure the high quality of its every product to serve the industry. KCM Valve is a modernized valve manufacturing, which integrates R&D, manufactures and industrial valves. They are well experienced in manufacturing and supply numerous industrial valves to fields of petrochemical, oil refinery, chemical, oil production, electric power station, chemical fertilizer, metallurgical, nuclear power, national defence, pharmaceutical industries. For years, KCM Products have been exported to countries in Southeast Asia, the Middle East, Europe, North America and etc.  

Mack Valves – In nearly 80 years of operation, Mack Valves has been supported a wide range of industries and providing different solutions to their customers. Their products are used around in the industries of aerospace, healthcare, chemical, energy, food & beverage, industrial gas and other fuel industries. Mack valves are ISO 9001 certified quality control and custom engineering for tough application in a wide range of materials to provide flow control solutions for many hazardous applications. 

LCM – Designs and manufactures a “Total Quality Concept” of soft and metal seated products – isolation quarter turn ball valves for many different applications in Oil & Gas, Petrochemical and other related industries. LCM valve specialized design for special application and has the highest performance and quality products with new techniques. LCM will dedicate 2% of annual turnover to R&D to develop new products and improve the existing range to fulfil customers’ requirements and conditions. 

Quality is the key to the success of O&G Engineering and the company is absolutely dedicated to providing our customers with the best quality, after sales service, maintenance service and valve and instrumentation management every time. With ISO9001 accreditation, O&G Engineering also works to industry on standard procedures and licensed with Petroleum National Berhad (PETRONAS), registered with Tenaga Nasional Berhad (TNB) and the Ministry of Finance.