Opening at a pre-set pressure - procedure control to prevent equipment damage; and 7. Maintenance of a solenoid valve involves replacing worn components and ensuring that parts are clean and free of debris. VALVE INSPECTION, EXERCISING, AND MAINTENANCE CITY OF FLINT STANDARD OPERATING PROCEDURE 4 This SOP does not cover valve installation and replacement procedures, which would include inspection before installation, installation or replacement, and testing and/or inspection after installation. a. Very few valves are manufactured without at least some modification to meet the customer’s requirements. LTD quoting the valve serial number. 6. Install the air supply hose and the electrical connection to the solenoid valve. Standard maintenance procedure of control valve Obtain a hot work or cold work permit as per requirement. INSTRUMENT AIR SYSTEM . Every control valve we service Turn the air pressure to the actuator on and test the valve for leaks and proper operation. Although the components of all control systems are of the highest quality available and should give many years of excellent service, it is essential that the following routine preventive maintenance procedures be followed. greater \(F_L\) value) Increase both upstream and downstream pressures by relocating the valve to a higher-pressure location in the process. 1. Preventive maintenance and repair for valves is an important part of keeping operations running smoothly and efficiently. : ti-jlx-amp-ggc-en rev. Combination with the stem of the control AND SERVICE REPAIR PROCEDURE Service Information INDEX ... CORRECTIVE MAINTENANCE MULTIFUNCTION LOGIC VALVE . With valves having high temperature graphite packed gland seals the gland nut should be tightened by approximately ¼ of a turn taking care not to overtighten as this may cause excessive friction on the valve stem. Troubleshooting Pilot 5-28 Main Burner Will Not Ignite 5-28 If Vapor Pressure Drops 5-28 Troubleshooting Tree #1: Pilot Will Not Light 5-29 Troubleshooting Tree #2: … innovative diagnostic, maintenance, and repair solutions that allow you to address your control valve needs, minimize downtime, and keep your processes running efficiently. Exacting factory design, manufacturing, testing and certification of industrial valves must not be compromised later through ill-advised maintenance practice. Solenoid valve maintenance. AIR COMPRESSOR . For hydraulic valve maintenance service or hydraulic control valve repair service, there’s only one company you need to know. Routine Inspections. During that time the strainers should be checked for dirt and cleaned as necessary. R. Arztmann: Operation and maintenance of different valve types _ 7 4.2 Plate valve Fig. gate, globe & check valves assembly & maintenance procedures – 879. Jerry Butz, Director of Engineering, will walk you through this one simple procedure that can extend the life of your control valve. When the control valve has a problem, you may have to close the block valve and open the bypass valve to control flow. VENTIL VALVE TEST AND REPAIR EQUIPMENT A complete range of tools and equipment, based on many years of experience in Shut-off valve, Safety valve and Control valve maintenance, testing and repair. Hardness procedure: Expected between 38 to 42 Rc for seat Valve seat are preheated to temp of 350 to 400 degrees Centigrade through out the section of the work piece and they are, then deposited with stellited alloys on the specified seat area using insert gas shielded plasma ARC process with non consumable throated (tungsten) rods. This article will address how maintenance of such a small component can be worthwhile and the difference upkeep can make to the system; when to repair vs replace; whether maintenance … A brand new control valve will operate at peak performance (at least it should!). Valve packing maintenance is one simple thing you can do to extend the life of your remanufactured Fisher(R) control valves. Liquid inlet valve maintenance procedure 4-24 Capacity control valve maintenance procedure 4-26 5. 20. Some valves out of HPI compressors need special cleaning methods. Preventative Maintenance Treatment of Pipeline Ball Valves 2 The pipeline construction crew then pre-heats the pups or closures on each end of the valve prior to welding into the pipeline, welding takes place, the weld is x-ray inspected to verify the integrity of the weld. Steps In Maintaining A Solenoid Valve. commercial unbalanced single-port, single-seat control valves and balanced single-port control valves with extra tight piston rings or other sealing means and metal-to-metal seats. 4 HEALTH AND SAFETY PNEUMATIC CONTROL VALVES SERVICE AND MAINTENANCE PROCEDURES 1. Overview The normally open pneumatic control valve is held open by high pressure water force and requires air pressure to close. (Not available on all models.) Close inlet and outlet stop valve and relieve all pressure from piping involved. Control valve maintenance. Check and replenish oil level The weld area is recoated or taped and the valve is • Dismantling • Visual inspection and dimensional check Does not turn on or off the valve. Chapter 11 covers discrete automation. Our technicians are factory-trained and participate in continuing education and certification programs; enabling them to deliver quality service, on time and within budget. However, if not provided with proper maintenance, these units fail to operate to their maximum efficiency, which in turn leads to several performance issues. Although control valves are ruggedly built to withstand harsh conditions in the operating areas, they are prone to damage with several years of service. Properly selected and maintained control valves increase efficiency, safe-ty, profitability, and ecology. Moreover, it is ideal to choose the same flow characteristics and size as those of control valve. Keeping it clean will prevent buildup on the valve stem and other moving parts, maximizing the life of your valve. Therefore, use a control valve that has the feature to adjust flow by opening the bypass valve. Pneumatic Control Valves Service and Maintenance Procedures 10181402 8-2008/Rev 24 7 Normally Open Control Valve Normally Closed Control Valve 20. Here, a routine maintenance … Solenoid valve maintenance typically only includes the replacement of rubber parts and springs. Manual operation: Manually operate control valve fitted with manual operating devices through the rated travel range to check freedom of movement. Return manual operating devices to its stand-by position. 4. Commissioning: Global Electronic Services is the proven expert in maintenance and repair of hydraulic valves and pumps, along with motors and general industrial electronics. Your valves should be checked and inspected on a consistent basis. Control and predict costs thus allowing for realistic budgeting. advanced industrial valve repair and maintenance procedures During yearly plant shutdowns, it's a good idea to take valves apart, clean the inner mechanisms and replace anything that is worn. Inspection and maintenance frequency depends upon the severity and importance of the service. Chapter 8 details typical control valve installation and maintenance procedures. So, if the remaining parts show wear or are damaged, it is time for a replacement. Chapter 12 discusses various process safety instrumented systems. Use test procedure Type A. But to keep it running year after year, and decade after decade, requires a regular maintenance plan. Valve packing is a component in a valve that forms pressure seal between the inside of the valve and the outside of the valve, keeping the process fluid from leaking out. Control valves are an increasingly vital component of modern manufacturing around the world. 2. Good and practical maintenance of a solenoid valve can make its life longer and guarantee expected functioning. XI STUFFING BOX MAINTENANCE PROCEDURE 8 XII CHANGE OF DISC AND BODY SEAT 11 XIII CHANGE OF GASKET 14 XIV ASSEMBLY AND DISASSEMBLY 14 XV PARTS AND SERVICE 16 XVI TROUBLESHOOTING GUIDE 17 XVII CAUTIONS 18 XVIII PARTS LIST AND MARKINGS 21 FOREWORD Flowserve Corporation, Flow Control Division, has established this Installation, … 3 – Plate valve The common overhaul procedure of a plate valve is: • Pre-cleaning of dirty valves. Therefore, use a globe-type valve that has the feature to control flow by opening the bypass valve. If you have valves that are under high stress (temperature or pressure), you should monitor these valves more often than others. The Control Valve Handbook has been a primary reference since its first printing in 1965. Preventive maintenance is required to ensure optimum system operation. For control valves, the best plan is based on in-service diagnostics and predictive maintenance. Remove tubing from the diaphragm casing <37>. Remove all compression... b. Disengagement of plug from the seat ring:. Place control valve in operation in accordance with the operating instructions provided with controller or other operating device. To reduce maintenance time refer to proper drawing and follow the steps shown below for applicable maintenance. 1. Renewing packing set (See Below Fig. 1~4): PORT - 1 Supply (normally closed) PORT - 2 Control #1 ... supply to control valve. date carried out by approved by description 0 11.06.2012 first issue 1 29.07.2013 general update 2 09.05.2017 general update – 879. 11 Key issues for Control Valve Maintenance 137 11.1 Scope of Maintenance Activities 137 11.2 Installation features 139 11.3 Key maintenance tasks 140 11.4 Detection of wear 143 11.5 Detection of back lash and stiction in the valve drive 143 . Preventive: This is the most advisable form of maintenance procedure. Decisions depend on valve design and application. Chapter 9 contains information on control valve standards and approval agencies across the world. According to Rotork, market leaders in Actuation, the following guidelines should be adhered to in any preventative maintenance programme. Check that there is no process fluid leak from the bonnet and flanges. Sprinkler control valves shall not be closed in the event of a fire until the fire is extinguished or is considered to be under control by other means as determined by the fire department. Below Ground Valve – Annual Critical Valve Inspection Partial Operation & Maintenance SCOPE AND PURPOSE This procedure is to ensure that: Each valve that maybe used for the safe operation of a Distribution system is checked and serviced, annually. Fig 3.6 illustrates an example of ideal control valve installation recommended by Honeywell. Check that the yoke clamp bolt is not loose. b. Conduct external visual inspection of all external surfaces including paint finishes, control knobs and valve stems. Chapter 10 identifies isolation valves and actuators. See the diagram above for information on flushing the valves. Control valve diagnostics Over time, mineralization, rust and corrosion will affect the valve stem, springs, coils, nuts and other metal parts. Since most maintenance problems caused by dirt occur at the start-up of a system, it is advisable to delay insulating the control valves and strainers until the system has operated for several days. Flow control - Regulates the amount of water passing through the valve. 3. Select a control valve type having less pressure recovery (i.e. Maintenance Control valve parts are subject to normal wear and tear and must be inspected and replaced as necessary. However, some valves are so specialised that it makes it hard to get a 4.1 Routine maintenance procedures 24 hours operation After 24 hours service check pipework connections and flange bolts for tightness. II. Carryout j.s.a/j.h.a/toolbox meeting as applicable Isolate and barricade the area and use proper p.p.e and tools Override if it is connected to any interlock Ensure the control valve is … Periodically inspect and perform maintenance service to the control valve for the following: Check that there is no air leak from between the diaphragm case and diaphragm. A s with any mechanical apparatus, proper and proactive maintenance and care of solenoid valves can extend their lives and ensure predictable operation. The person in control of the workplace should also identify a person (or … Shipment & Storage A. Operations and Maintenance Procedures SCUD Procedure # MAINT011 Page 2 of 4 O&M Section # 10.1 SCUD Task # 330 Section: Maintenance Revision Date: 09/06/16 Above Ground Valve – Corrective Maintenance Internal icing, foreign material, and corrosion can cause a steel ball or plug valve to be difficult to operate. The seat, disc, stem, and bushing of the butterfly valve should be coated with silicone lubricant as recommended by Bray Technical Bulletin 1028. Use multiple control valves in series to reduce the lowest pressure at either one When the control valve has a problem, you may have to close the block valve and open the bypass valve to adjust flow. … Cotton bags are available for 25mm-100mm (1” - 4”) Type RSF Strainers to improve their ability to remove small particles of dirt during … Ability to handle abrasive fluids - hardened material prevents rapid wear. Disassembly of diaphragm actuator from valve body (See Fig 1 ~ 4 ) a. 2 review control procedure ref. The owner or the owner's agent shall be responsible for carrying out inspection, maintenance and testing procedures of the sprinkler system. Moreover, it is ideal to choose the same flow characteristics and size as those of control valve. Preparation:. This section covers instructions for gland packing maintenance and valve trim maintenance. Flush Valve / Manual bleed - Turns the valve on manually by "bleeding" water off of the dia-phragm. Isolate all energy sources. recommended procedures to ensure proper installation and maintenance of Bray butterfly valves. Maintenance of control valves despite it being a tiny component may possibly be valuable in the long run and what looking after can yield to the whole system. For the sleeved plug valve (SPV), such maintenance is minimal—simply requiring an occasional adjustment to prevent both external and internal leakage in certain applications. This course will discuss the selection process and provide the basic principles of sizing the control valves. Operation and Maintenance Manual 6 e. Butterfly valves in combination for control/isolation applications should be installed as follows: FLOW INCORRECT INSTALLATION CORRECT INSTALLATION FLOW Combination with all valve stems in the same direction accelerates possible noise, vibration, & erosion problems.

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