evt safety valve testing manufacturer

The Electronic Valve Tester, (EVT), is a digital computerized, hydraulic assisted device, designed to test and set safety/relief valves while in service. The EVT is portable and can be used under normal operating conditions without over pressuring the system.

Our Factory and National Board certified technicians, provide total safety/relief valve evaluation utilizing EVT technologies... at your convenience. The Electronic Valve Tester has been approved by the ASME for set point evaluation and or adjustment.

EVT service eliminates the need to overpressure the system for testing. Under normal operating conditions, we save test medium and unnecessary stress on the overall system.

The EVT-Pro device simultaneously examines two critical variables of the relief device — the upward force applied to the spindle and the actual system pressure. Using sophisticated sensors, including an acoustic device, EVT-Pro testing accurately determines the pressure relief valve’s set pressure. It can also immediately sense and automatically close a relief device should it remain open during a test – a unique safety feature built into the software and hardware.

Control Valve Testing is the best way to make sure your current system is performing to an optimal standard. If you’re curious about where your valves are falling short or how you can improve their performance, Pioneer has the solution to get your safety relief valves where they need to be. At Pioneer, we provide specialized equipment to help your pressure relief valves adhere to required standards and certifications. The EVT-Pro from GE offers cutting-edge testing, diagnostics, and reporting for your valves for comprehensive evaluation. The EVT-Pro works for all brands of pressure relief valves.

The Electronic Valve Tester, (EVT), is a digital computerized, hydraulic assisted device, designed to test and set safety/relief valves while in service. The EVT is portable and can be used under normal operating conditions without over pressuring the system.

Our Factory and National Board certified technicians, provide total safety/relief valve evaluation utilizing EVT technologies... at your convenience. The Electronic Valve Tester has been approved by the ASME for set point evaluation and or adjustment.

EVT service eliminates the need to overpressure the system for testing. Under normal operating conditions, we save test medium and unnecessary stress on the overall system.

For Masoneilan Branded Products– DARVICO is equipped with advanced diagnostic tools and services designed to optimize process loops. In addition, the tools assist in the prevention of unexpected or unnecessary maintenance, repair, or overhaul. Available diagnostic tools include the ValScope ™ for control valves, and the Smart Valve Interface (SVI ®) digital positioner and controller with ValVue ® software. Diagnostic services include the on-site application of these highly advanced tools by fully trained technicians.

For Consolidated Branded Products – DARVICO has the experience and resources to provide you with cost effective valve management services. Our teams of industry experts understand the unique needs of your operation and they are leaders in valve services management.

ValvKeep ® valve management software provides custom support data services to help manage relief valves, control valves, and other equipment in your operation.

EVT Electronic Valve Tester provides advanced capabilities for diagnosing the condition of your safety relief valves while the valve is in service. Data collection and analysis can be performed without removing the valves from the equipment they are protecting. The EVT data can also be used to set proper relief adjustment for valves that are rebuilt in the field.

The EVT is a Windows® based system that uses smart sensors, and can be used to perform diagnostic and set point verification of safety relief valves. The integrated software provides the necessary information for most overpressure relief valves in service today. EVT features include:

The self-contained system is ergonomically packaged within an Intrinsically Safe industrial computer with a full color display and battery power capability. The EVT is extremely portable for potential application within any plant site in the world. Unique features and capabilities of the system include the ability to:

At each of our 12 convenient locations, the Chalmers & Kubeck Valve and Actuation Technicians are factory trained and certified. Each expert Technician is required to meet stringent factory standards prior certification so you can be confident that we will provide the expert, efficient, and comprehensive service that you expect.

Our services include field trouble shooting, actuator refurbishment, control enhancement, electronic valve testing, torque verification, turnkey overhauls / repairs, retrofits, and valve testing / certification. We offer complete reconditioning of ball valves, butterfly valves, check valves, control valves, gate valves, globe valves, parallel slide valves, pilot operated valves, plug valves, pressure relief valves, pressure safety valves, vacuum break valves, and other specialty valves.

Baker Hughes manufactures the premier boiler safety valves and pressure relief valves in the industry, Consolidated®, and authorizes a very select group of companies to be their exclusive factory authorized repair and service centers, known as Green Tag Centers® (GTC). Ten of the 12 C&K Service Locations are GTCs, which means that you will receive best-in-class aftermarket product support. With our OEM trained and certified valve technicians, you know that your relief valves will be rebuilt correctly to exacting standards. Prior to certification, each of our valve technicians must go through Baker Hughes classroom training that includes applicable codes and standards, proprietary repair procedures, and practical hands-on instruction. The technician must prove their proficiency during both written and practical examinations covering relief valve repair, assembly, and testing. With our certified Green Tag Technicians, you can rest assured that your valves will be serviced in compliance with ASME and NBBI (National Board of Boiler and Pressure Vessel Inspectors) standards so they perform their critical safety function as intended.

Each of our GTC service locations has compete machining capabilities, calibrated measuring and testing equipment, specialized electronic valve testing equipment, and ValvKeep, a proprietary electronic data management system, so you can track and trend the repair history of your valves. We also carry significant inventory of Consolidated pressure relief valves and OEM certified replacement parts ensuring rapid response to your urgent repair needs. If for some reason we don’t have a part in stock locally, we have access to all parts stocked by GTCs throughout the entire United States and can have them overnight shipped to one of our service centers. We are your trusted local pressure relief valve service center whether your valves are Consolidated or another manufacturer’s brand.

Since the first installation of its Limitorque Machine (limit & torque capable) in 1929, Limitorque has been manufacturing some of the most innovative and dependable motor-operated valve actuators for demanding industrial applications.  Flowserve, the parent company of Limitorque, authorizes a select group of companies to be their “Limitorque Blue Ribbon” service and repair centers.  Chalmers & Kubeck is proud to be the largest Limitorque Distributor east of the Mississippi River and that all twelve (12) of our locations are Limitorque Blue Ribbon Service Centers.  With over 20 years  providing outstanding Blue Ribbon Service, C&K is your go-to solution for actuator sizing, selection, adaptation, installation / certification, maintenance, repair, and field service.

This team of valve and instrument specialists works closely together to provide customer assistance in technical sales, quotations and delivery. Chalmers & Kubeck maintains around-the -clock service, which includes the assembly and test of new CONSOLIDATED® pressure relief valves, plus full machining and repair operations for industrial valves of many types and manufacturers. Additionally, C&K provides comprehensive design and manufacturing services to adapt your existing manual valve or a new manual valve to a motor operated actuator for enhanced process control and operator safety.

In today’s world, with the automation technology available, human error can be significantly reduced. Valve service and repair within the valve industry is no exception.

Designed with the valve technician in mind, The AccuTEST offers many competitive advantages including: ease of use, modern software, portability of equipment, and repeatability of results regardless of which technician conducts the test.

In today’s world, with the automation technology available, human error can be significantly reduced. Valve service and repair within the valve industry is no exception.

Designed with the valve technician in mind, The AccuTEST offers many competitive advantages including: ease of use, modern software, portability of equipment, and repeatability of results regardless of which technician conducts the test.

The old way of pressure relief valve testing could be summarized in one word: downtime. First, the plant went down, then valves were disassembled, and finally, the valves were transported offsite for testing. Time-consuming. Costly. High risk. But using the AccuTEST System, pressure relief valve testing comes to you, right where the valves actually operate. Time saver. Cheaper. Lower risk.

The AccuTEST System is a recognized leader in the valve service and repair industry. Why? Think fully automated one-touch testing for ease of use and repeatable results. It’s compact and portable to reduce the load of pressure relief valve technicians. Ongoing product enhancement based on technicians’ input. And we offer responsive technical support, anytime, directly from our engineers – not from a third-party representative.

The AccuTEST System is an recognized leader in the valve service and repair industry. Why? Think fully automated one-touch testing for ease of use and repeatable results. It’s compact and portable to reduce the load of safety valve technicians. Ongoing product enhancement based on technicians’ input. And we offer responsive technical support, anytime, directly from our engineers – not from a third-party representative.

Unsurpassed for accuracy, reliability and safety, the advanced technology of AccuTEST was developed to test safety valves while in position, under a full load, for consistently superior, reproducible results.

Unsurpassed for accuracy, reliability and safety, the advanced technology of AccuTEST was developed to test safety valves while in position, under a full load, for consistently superior, reproducible results.

Precision of proud to be recognized as your local authorized Green Tag Center (GTC) for GE Consolidated® safety and safety relief valve products. The GTC authorization gives you the best-in-class benefits of GTC exclusive programs such as factory trained GTC repair technicians, EVTPRO® auxiliary PRV in line testing, SRVSpeQ® valve sizing program,

ValvKeep® IIis a state-of-the-art, fully customizable valve management database system designed to assist our customers with the storage, management and maintenance of their safety, safety relief, control and block/line valve historical information. With a variety of reporting methods, this program can greatly assist our customers in maintaining their equipment with day-to-day and outage maintenance needs required to comply with OSHA regulations.

Dynamic Engineering Design prepared a maintenance schedule for over 200 relief valves in accordance with the National Board recommendations and based on the service conditions of each valve. Services included compressed air, water, oil, nitrogen, argon, carbon dioxide, and steam.

Dynamic Engineering Design coordinated required outages and scheduled the maintenance actions which include replacing valves, in service testing of valves (EVT – electronic valve testing), and on-site bench testing by a certified valve repair (VR) corporation.

1 GE Oil & GasConsolidated* Pressure Relief ValvesEVT*-Pro Electronic Valve Tester In-Place Testing: No Problem Manages Global Safety Standards Tests All Manufacturers Pressure Relief Valves Helps to Improve Plant Uptime and Increases RevenueConsolidated Valves - EVT*-Pro Valve Testing Device | 32 | GE EnergyHelping You Comply With Global Safety StandardsProtection from Harmful Chemical ReleasesGlobal Safety Standards like OSHA s process Safety Management (PSM) standard was published to help minimize the consequences associated from a catastrophic release of toxic, reactive, flammable, or highly explosive hazardous chemicals. This standard covers several areas, specifically Relief and vent systems and devices. It requires that written procedures, inspection and testing, [and] appropriate job skills be deployed, [and that] records and management of change be in place.

2 Failure to do these things may result in severe to comply with OSHA 29 CFR process Safety Management requirements is one of the most frequent infractions. There are several reasons for this: deficient Pressure Relief devices, inadequate documentation, and lack of Pressure Relief information, procedures, or training and associated Compliance SolutionBy integrating with ValvKeep, EVT-Pro lets you effectively manage the OSHA requirements. Since you can use the device to test any brand of Pressure Relief device, you don t need to manage multiple test suppliers. EVT-Pro and ValvKeep put all your documents in order, so test reports, procedures and other related documents are always available to meet compliance requirements. You are better prepared for audits and lessen the odds of receiving citations and penalties.

3 And EVT-Pro s in-place functionality lets you keep plant operations going while it tests your Set Pressure MeasurementEVT-Pro s true in-place valve testing enables you to meet local safety requirements for periodic testing and documentation without shutting down processes or dismantling or removing Valves from service. You get the true hot set Pressure of the valve, since it is tested under actual operating EVT-Pro device simultaneously examines two critical variables of the Relief device the upward force applied to the spindle and the actual system Pressure . Using sophisticated sensors, including an acoustic device, EVT-Pro testing accu-rately determines the Pressure Relief valve s set Pressure . It can also immediately sense and automatically close a Relief device should it remain open during a test a unique safety feature built into the software and with its rugged yet lightweight test fixture, EVT-Pro has state-of-the-art electronics and proprietary software, including an interface to ValvKeep* valve maintenance and manage-ment software.

4 You can view test results in both tabular form and colorful graphs that depict the exact set Pressure , and historical data and tests are readily available 24/7 with ValvKeep software s database Advanced TestingSee Exact Set Pressures Colorful and clear graphics assist the end user in seeing exact set pressures for the valve in test. Unique acoustic sensor feature provides confirmation of set Pressure on force curves delivering confidence in each TestingHelps to Maximize Plant UptimePre-Planning OutagesID Problem Valves for Rapid TurnaroundsPortable and LightweightCan be Placed in Virtually Any Location in Any Plant Quickly and EasilyUser Defined Report AbilityGet the Report You NeedIndustrial ComputerCan be Taken Just About Anywhere in the Plant No Matter the ConditionsBench Tes tingShop Testing for New and Repaired ValvesAuto Shutdown Safety FeatureSuperb Safety Feature Allows for Closure of Valve Under Full-Lift CircumstancesInterface to ValvKeep SoftwareComprehensive Asset Management Tool Exclusive to GE s GTC sAcoustic Indicator DeviceSensor Takes Guess Work out of Determining Set

5 PressureATEX/UL CertifiedIntrinsic Safety Certified; Available on Certain ModelsTest Gas, Liquid and SteamCapable of Testing all MediaNBBI Accepted (Part 3, para )National Board ComplianceASME-QualifiedMeets ASME Code RequirementsEnd-User Feedback In the past I had to know where my test records were located to demonstrate compliance to our local inspector; this is very important for the OSHA process Safety Management require-ment. With ValvKeep and EVT-Pro, my files are linked and updated so I have quick access to them. Several months ago an inspector was at my plant, standing next to me, asking for the paperwork on the safety Relief Valves . Using ValvKeep I was able to get the reports, show the inspector that the Valves were all certified and had been serviced within the service guidelines.

6 consolidated Valves - EVT*-Pro Valve Testing Device | 54 | GE EnergyHow EVT-Pro WorksNormally, with the Pressure Relief valve online, the much stron-ger force of its spring -- F1 -- is all that is required to prevent system inlet Pressure -- F2 -- from forcing the valve open. However, should F2 increase beyond the operational limit of the system, the valve will first simmer and then prevent the valve from discharging during the EVT-Pro test, the GE-trained service technician introduces just enough pull on the spindle F3 -- to balance the force of the spring. This causes the disc to only crack open or this point the GTC Technician can read the set Pressure from the graphic display of the EVT-Pro and determine if it is set Balance Analysis: F3 + F2 = F1F3 = Artificial pull on the spindle supplied by the hydraulic pumpF1 = Spring force pressing down on the discF2 = Inlet Pressure pushing upward against the discExclusively Available Through Your Local GTC*GE s GTC Network Consists of More Than 80 Facilities Located in More Than 30 Countries WorldwideGreen Tag Center NetworkMore than 125 Years of ExpertiseConsolidated Pressure and safety Relief Valves from GE Oil & Gas have been available for more than 125 years.

7 The EVT-Pro diagnostic tool is the most technologically advanced consolidated field test device ever. EVT-Pro testing meets high standards for quality and accuracy. The GE Green Tag Center (GTC) network is the only place you can access GE s advanced technology, which tests any brand or type of Pressure or safety Relief valve you have. Your local GTC has the EVT-Pro Electronic diagnostics, ValvKeep valve management software and factory-trained and certified technicians to meet your testing and compliance and ValvKeepWide Scope of DocumentationRecord keeping is important to providing proof of your efforts to comply with Global Safety Standards, OSHA included. The scope of documentation is wide, and the more accurately records are maintained, the better it is for audits. Using EVT-Pro Electronic diagnostics and ValvKeep software will lessen the stress of a Safety Inspection inspection and reduce the odds of receiving citations and penalties.

8 As one well known safety organization, OSHA states, OSHA s primary goal is correcting hazards and maintaining compliance, rather than issuing citations or collecting penalties. consolidated Valves - EVT*-Pro Valve Testing Device | 76 | GE EnergyEVT-ProElectronic Valve Test DeviceValvKeepValve Management and Maintenance Software Asset ManagementCompliance TestingGTCG reen Tag CenterValve RepairIntegrated Performance SolutionPressure Relief ValvesCoal-Fired Power PlantGreen TagCenterGEA19101 08/2012* consolidated , EVT, Green Tag Center, and ValvKeep are trademarks of the General Electric company names and product names used in this document are the registered trademarks or trademarks of their respective owners. 2012 General Electric Company. All rights reserved.

ASME Sec. I, Power Boilers, Para. 73.4.2, has requirements for Safety Valve Testing. "Trevitest" is one of many lift assist devices accepted by ASME as an alternative to live steam overpressurization on the boiler.

Live steam testing requires raising the pressure in the boiler above the Maximum Allowable Working Pressure of the Boiler while at the same time gagging (rendering inoperable) most of the Safety Valves an the boiler. So, obviously, there is an element of danger in the process. Additionally, the personnel who have to gag and ungag the valves, as well as make adjustments to the valves, are exposed to high pressures and temperatures.

Speaking from experience, I have had my hard hat blown off and my safety glasses imbedded with particles of rust, not to mention burns to my forehead, when a safety valve lifted while I was adjusting it. I have also gotten overheated more than once on a Boiler and suffered from vertigo.

I know a few countries in South America which still require live testing, but most utilities in the USA now use a Lift Assist Device such as Trevitest, EVT, AVK, etc.

Live Steam Testing on the Boiler is the standard for testing against which all other methods are measured, whether Test Bench, restricted lift or lift assist.

To expand on the subject of Live Steam Testing versus Lift Assist Devices, there was once a big difference between the two methods regarding blowdown or reseat pressure. Until the latest edition of ASME Sec. I, there was a requirement for demonstration of blowdown. Even personnel with the required specialized training often had problems adjusting blowdown. This meant mutiple lifts of the Boiler Safety Valves. In turn, multiple lift increased the chances of damage to the Safety Valve Seating (sealing) surfaces. The lift assist was developed to determine set pressure without fully lifting the safety valve. The lift assist cannot determine full lift or reseat. Recently, however, the ASME Sec. I Committee determined that reseat pressure was not as critical as had been previously thought. Therefore, they removed the requirement for testing/adjusting the blowdown. This makes the lift assist device more acceptable as a comparison to live steam testing than in past years.

After checking ASME Sec. I, Power Boilers, Para. PG-73.4.2, it seems a requirement for initial installation of safety valve. However, does the code mention the timing and interval of online testing? Should we implement online test every year?

The NBIC is a post construction code which recommends timing and interval of online testing? You should implement online test every year for Sec. I Drum & Superheat Valves unless your jurisdiction will allow longer interval.

The requirements in ASME Sec. VII, Subsection C4 Appurtenances, C4.130 refers to either offline test or online test. Either way is acceptable. SOme Drum & Superheat Valves are welded in line (must be tested in line).

The differences among Trevitest, EVT and AVK are primarily cosmetic. All systems use the same formula and same transducers to calculate set pressure. AVK throws in a random number which makes it impossible to check their calculations (Its purpose is to keep antone from stealing their technology, but they closed that door after the proverbial horse had already left the barn).

There are no major differences in any of the systems. EVT is Dresser and it is leased to their Reps. Trevitest is Furmanite and it is for sale, but very expensive. AVK is also expensive, but they do sell to consumers.

Same as your reply, ASME Sec. VII, Subsection C4 Appurtenances, C4.130 also recommend that the testing of safety valves should be performed at the time the boiler is being shut down for inspection. Actually some of our local plants also implemented in this way.

However, I think the purpose of valve online testing is to ensure the valve workable for future continues operation. So the online testing should be done before boiler starting long-term operation, not shutdown. Once a safety valve was dismantled and repaired, it should be tested online with steam again, I suppose.

You are correct about the testing needing to be performed prior to start of long run. The advice in ASME Sec. VII & NBIC RB-8410 are both ideal scenarios which do not give enough details. I started to go into this in my last comment. The best way to properly set, test & adjust a Safety Valve on a large boiler is to make adjustments to set pressure and blowdown as the boiler is coming off line because sometimes testing takes several pops (lifts) to get the adjustments correct. This can cause leakage to the valve from repeated lifting. Then the valve should be dismantled and repaired. During the repair the adjusting ring settings which control the blowdown should be noted and the rings returned to those positions prior to start up. The spring adjusting screw should also be returned to the as found position. Then when the boile ris back up to pressure and temperature is stabilized in the valve (typically 24 hrs running time) the valve should be tested with a Lift Assist Device. This prevents damage from full lifting, but verifies set.

The new ASME Sec. I rules which eliminated the Blowdown Adjustment requirements noe permit a user to simply place the rings per the Original Valve Manufacturer"s Specifications. So, Sec. VII should probably be revised to reflect the current procedure in ASME Sec. I.

AS for the pressure reading, most valve testing is done from the control room gauge/pressure transmitter. Not because of safety, but because there is no place to attach a test gauge in many systems. Drums & Superheat Lines especially are too hot to place a gauge in the line without some type syphon below the gauge sensing element.

Does the Trevitest actually render the PSV which is being tested "inoperative" or not? I understand from the below link that the Trevitest device restricts the valve from relieving fully and therefore the valve "has to be declared inoperative" (during the test).

The Trevitest may have a closing ram in order to push the stem down and reseat the valve should it lift and begin to chatter or blowdown extremely long and overheat. However, the closing ram is not typically used, and is often not even installed on the unit due to overhead clearance and other considerations. In any case, as long as the closing ram is not activated the Trevitest does not hinder the PSV from operating.

ASME Sec. I PG-73.4 is a requirement for Manufactures and Assemblers only. It spells out the conditions that allow the Manufacturer to attach the Code "V" stamp. Local Government or Insurer will often dictate the type of testing they will allow. Always check with them before you fully decide which way you are going to test.