Recently, RAYS successfully delivered a new C-type PIG VALVE for a foreign end-user, which will be used in an important pipeline project in the Arctic, contributing to the global energy strategy. The PIG VALVE is a new type of valve that serves as a transmitting and receiving device for pipe cleaners, and it also functions as a universal ball valve. With the use of pig valve and the corresponding pipe cleaners, pipe cleaning, emptying, isolation and sequential transport of media, testing of piping systems, etc. can be done more easily with the use of a pig valve and the corresponding pipe cleaners. Features of the RAYS new C-type PIG VALVE:Ball hole area is about 21% larger than the pipe diameter area, to ensure the continuous flow of the conveyed medium during the pipe cleaning operationRealization of two different calibers connected for pipe cleaningValve Stem is not subject to ball thrust & the stem twistQuick-open blind operation isThe valve seat provides zero leakage with DBB & DIB-1 function.Interlock design to ensure the safety ofFire-safe design based on API 6FA and API 607 standardAnti-static design & Anti-blowout stem design The technical innovation of RAYS new C-type PIG VALVEa) The ball is equipped with a “sending and receiving cylinder” structure:The ball cavity is equipped with a “sending and receiving cylinder”, which can be applied to both rubber pipe cleaners and electronic pipe cleaners, expanding the scope of use of the pipe cleaning valve.b) The functional design of the drain valve:The drain hole is added to the wall of the pipe channel of the pipe cleaning valve and a drainage valve is installed on the hole. When the pipe cleaning valve receives the pipe cleaner, this drainage valve is opened and the dirt cleaned by the pipe cleaner is discharged. This improves the working environment when receiving (cleaning) the pipe cleaner.c) The function of the pressure relief valve is increased:The new type has a small pressure relief ball valve installed on the side of the entire pipe cleaning valve, with a warning sign to indicate. In the valve cavity, pressure release at the same time can also discharge the oil in the cavity of the clearing valve which has a dual function.d) The new structure design of quick release valve cover:The quick-release valve cover part is one of the key parts of the pipe cleaner valve.It is directly related to the safety and labor intensity of the receiving and firing operation process of the pipe cleaner.e) The new structure design of quick release valve cover:The quick-release valve cover part is one of the key parts of the pipe cleaner valve. It is directly related to the safety and labor intensity of the receiving and firing operation process of the pipe cleaner.The new C-type PIG VALVE cleverly adopts the “side opening handwheel, a positive handwheel, and a pull rod” side opening mechanism, so that the “rotation and pull” of the valve cover parts become easy and comfortable, with flexible operation and accurate positioning characteristics.More about PIG VALVE design and construction.1. Overview1. Main purpose.The best way to transport oil and gas is by pipeline, which has the advantages of high transport efficiency, low cost, low losses, and low environmental pollution.To ensure the safety, efficiency, and smoothness of pipeline transportation, it is necessary to use the “pipe cleaner” to clean the pipeline. The “pig valve” and “pipe cleaner” together form a pipe cleaning operation device. It can be used as both the launch receiving device and the opening & closing valve of the pipe cleaner, which is called the “pipe cleaner launch receiving valve”. (abbreviated as “pipe cleaner”).Its main uses are:Before the new pipeline is put into operation, remove all kinds of residues in the pipe to make the pipeline unobstructed.Rust removal and anticorrosion coating on the inner wall of newDo regular oil pipe scraping wax and gas pipe de-watering on the put into the production It can maintain an effective transmission capacity for a long time. At the same time, reduce the corrosion in the pipe wall and extend the service life of the pipeline.It can be used as an isolation and quality exchange of different kinds of media conveyed in the samePipeline water pressure before exhaust and water pressure test after 2、Basic parameters.Nominal diameter: 2″-24″ (DN50-DN600)Nominal pressure Class150-2500（PN1.6-42.0MPa)Applicable: -196-400℃ (different materials use different temperatures)Applicable media: oil, oil products, natural gas containing sulfur, purified natural gas, as well as gas, water, and other media.2. Main types of products.The main types of products are mainly three types according to product function, usage, and pipe cleaning valve.B type of pipe cleaning valve: pipe cleaner launch and receive the whole process of fluid flow without suspension. See figure (2)Figure (2) B type pipe Pig ValveC type: The fluid is not interrupted when the cleaner is launched and enters the cleaning valve, but when the pig was removed, the flow was interrupted briefly. (See Figure (1))Figure (1) C type pipe cleaning valve PS type Pig Valve: The fluid flow is interrupted for a short period during both launching and receiving purge, and the PS type is used when different types are transported in sequence or prevent mixing of transported (See Figure (3))Figure (3) S type Pig Valve 2. structural features and working principleStructural features. The structural features of the cleaning valve are innovatively designed after adapting and increasing the functions based on the structural principle of the three-way ball valve.Working principle. The working principle of pipe cleaning valve is: the pipe cleaner is placed (or received) in the inner cavity of the sphere of the pipe cleaning valve, through the sphere in the “┴”- shaped (inverted “┬á” three-way valve body with mutual vertical, for reciprocal 90 rotation movement. When the sphering channel and the pipeline channel are on the same axis, the pipe cleaner is launched and received by the pipe cleaner valve under the fluid pressure in the pipeline, and its working principle is shown below. the principle is shown as follows.…

The power plant valves supplied by RAYS to a supercritical power plant phase Ⅱ in Thailand have been successfully delivered.Prior to this project, the Thailand power plant owners all used European imported power plant valves for the key position of supercritical high temperature and high pressure. However, after many technical exchanges/product design ideas and quality tracking control norms, and the high quality valves supply in the last two years at the phase Ⅰ, a power plant owner has full confidence and trust in our power plant valves for harsh conditions with the design/manufacture/quality control. Background/Condition of the Power Plant Valve ProjectThe power station project is located in a power station unit on a famous tourist holiday island in Thailand. The project code is “SKIC TG18”, and the EPC contractor is “SCG”. The medium is high-temperature & high-pressure steam, and the highest pressure reaches 100 Bar (10 MPa) when the temperature of steam reaches 510℃.Order Specifications of the Power Plant ValvePower plant pressure seal electric gate valve, size & pressure are 12″ & 1500LB, main material is F91, adopt ROTORK actuator imported from EuropePower Plant Valve Design CharacteristicsOne-piece forged F91 body and the design life of 25 years. Strict quality control, screening out high-quality forging suppliers, raw materials and machining process inspection stage through PMI element composition analysis, RT, PT, and other non-destructive testing procedures to strictly control the quality of pressure contain parts. In addition, during the machining process, the quality and technics can be traced for all sizes.Testing RequirementsDuring the final finished product testing, SGS as the third party inspection was invited to witness the dimension and pressure testing. The qualified rate of finished products was 100%, and the products were shipped & delivered to the owners successfully. Introduction to Power Plant ValvePower plant valve is also called the special valve for the power plant. It is mainly used for cutting off or connecting the pipeline medium in various systems of the thermal power station. Applicable medium: water, steam, and other non-corrosive media. Compared with other valves, the power plant valve is characterized by high temperature & high pressure, unique pressure seal design, and the higher the pressure, the more reliable the sealing. Due to the special performance with technical characteristics and working conditions, the power plant valves have special characteristics which other products can’t replace.Structural Advantages of Power Plant Valve1. Pressure seal is adopted and both ends of branch pipe for valve body have welded connection.2. The valve seat & disc sealing surface are made of cobalt-based hard alloy plasma spray welding and with good wear resistance & abrasion resistance.3. The valve stem is made of special material which is treated by a special process and has good corrosion resistance along with scratch resistance.…

In recent years, the FPSO (floating production, storage and offloading tanker) market has been very prosperous, and major shipyards in the world have joined the FPSO constructions.RAYS won a bid and successfully delivered the FPSO project for EPC: Samsung Heavy Industries. The end user of this project was India's Reliance Group company.The main valve types of this project include: floating ball valve, globe valve, and dual plates check valve.The materials of the valve include: Stainless Steel A182 F316, Aluminum-Bronze Castings B148 C95800, and Unalloyed Titanium B381 G R.F2.The applied medium include: sea water and hypochlorite.The smooth delivery of this project has accumulated more project operation experience for RAYS Flow Control which includes: covering materials, process control, inspection & testing, quality control, quality management system, and environmental health & safety. It also lays a solid foundation for our company's future FPSO projects.…

The valves supplied by RAYS to a supercritical power plant in Thailand have been successfully delivered.Prior to this project, the Thailand power plant owners all used European imported power plant valves for the key position of supercritical high temperature and high pressure. However, after many technical exchanges / product design ideas and quality tracking control norms, a power plant owner has full confidence and trust on our power plant valves for harsh conditions with the design / manufacture / quality control.The background/condition of the project:The power station project is located in a power station unit on a famous tourist holiday island in Thailand. The project code is “SKIC TG18”, and the EPC contractor is “SCG”. The medium is high-temperature & high-pressure steam, and the highest pressure reaches 100 Bar (10 MPa) when the temperature of steam reaches 510℃.Order specifications of the products/materials:Power plant pressure seal electric globe valve, size & pressure are 10″ & 1500LB, main material is F91, adopt AUMA actuator imported from Europe, and model is SA16.2-AC01.2-CK40.2(15-1)-F40.Power plant pressure seal manual globe valve, size & pressure are 6″& 1500LB, and main material is F91.Power plant pressure seal swing check valve, size & pressure are 14″& 1500LB, and main material is F91.The product design characteristics:One-piece forged F91 body and the design life of 25 years. Strict quality control, screening out high-quality forging suppliers, raw materials and machining process inspection stage through PMI element composition analysis, RT, PT, and other non-destructive testing procedures to strictly control the quality of pressure contain parts. In addition, during machining process, the quality and technics can be traced for all sizes.Testing requirements:During the final finished product testing, SGS as the third party inspection was invited to witness the dimension and pressure testing. The qualified rate of finished products was 100%, and the products were shipped & delivered to the owners successfully.Introduction to power plant valve“Power plant valve” is also called special valve for power plant. It is mainly used for cutting off or connecting the pipeline medium in various systems of thermal power station. Applicable medium: water, steam, and other non-corrosive medium. Compared with other valves, power plant valve is characterized by high temperature & high pressure, unique pressure seal design, and the higher the pressure, the more reliable the sealing. Due to the special performance with technical characteristics and working conditions, the power plant valves have the special characteristics which other products can’t replace.Structural advantages of power plant valve1. Pressure seal is adopted and both ends of branch pipe for valve body have welded connection.2. The valve seat & disc sealing surface are made of cobalt-based hard alloy plasma spray welding and with good wear resistance & abrasion resistance.3. The valve stem is made of special material which is treated by special process and has good corrosion resistance along with scratch resistance.…

Recently, a batch of high-performance top entry ball valves with DN150-DN500 and PN100-PN180 have been successfully produced and passed various tests in our RAYS factory. All the valves have been delivered to our foreign customers at the end of September 2020 and will be put into use for a large natural gas project.The valve body for this order is forged by integrated forging. Compared to casting, the mechanical property is more stable and reliable under the working condition of gas medium at minus 60 degrees. All of the workpiece was machined by CNC lathe and machining center, which ensures the shape, position tolerance, and accuracy of the workpiece. In addition, the ball and valve seat products adopt: cemented carbide spraying technology, the sealing surface hardness is high, wear-resisting, high temperature resistance, erosion resistance, and other excellent characteristics.The finished product test after assembly simulated the gas working condition of the user. After nitrogen high-pressure gas test, the hard contact sealing surface reached the standard of zero leakage.Structure and characteristics of top entry ball valveTop entry ball valve is used mainly in pipeline and industrial systems which can utilize inline maintenance. Its main features are: simple structure design, low flow drop, compact size, light weight, reliable sealing, and quick open/close. The operation methods can be: manual, gear, pneumatic, electric, gas-over-oil, electro-hydraulic, and others.Top entry one-piece bodyTop entry ball valves differ from other standard ball valves is that it can be maintained online without removing from the line. It reduces maintenance costs and extends service life. The welded end structure is installed on the pipe, which is not affected by the pipe stress and objectively reduces the leakage point while ensuring the sealing reliability.Seat sealing designSeat sealing include: seat, seat insert, and other components. Seat inserts can float independently in the axial position and seal the seat at zero pressure/low pressure by preloading the spring. This design is used to realize the ability to turn off the quality under working pressure and high pressure conditions. On the outside of the seat insert, we insert the O-ring and the elastic ring to ensure the seal between the seat and body. The expanded graphite also retains the seal in case of field fire to ensure the reliability of the valve seat against fire.Emergency rescue and valve lubricationWhen the valve seat and stem seal are damaged, leak occurs. The sealing grease injected by the grease valve can achieve the function of emergency sealing. Under the normal working condition of the valve, the valve stem and sphere can be lubricated by injecting grease through the grease valve, making the valve more flexible and portable.Extended stemFor buried valves, the valve stem can be extended according to the installation and operation needs. The size of the extension stem will be according to customer requirements. All blowdown pipes, vent pipes and emergency injection devices shall be extended accordingly. Other related pipes shall be attached to the extended part of the valve to connect the: blowdown valve, vent valve, and injection valve to the ground for installation in order to facilitate the regular maintenance of the main valve.Anti-static designThe upper and lower stems (trunnion) are designed against static according to API 6D and IS0 17292.DBB/DIB-1/DIB-2 Design diversityWhile the upstream uses the single piston seat, the downstream uses the double piston seat which has the double blocking function and can cut off from the upstream/downstream media at the same time. With automatic directional pressure relief function, the valve seat can automatically relieve pressure (discharge to the upstream side) when abnormal pressure boost occurs due to temperature increase of the medium trapped in the valve chamber.Low torque valueThe top entry ball valve is a trunnion mounted type where the surface of the ball is: grinded, polished, and hardened. A sliding bearing is fitted between the ball & stem to minimize friction and operating torque.Operation typeConnection flanges between valves & actuators comply with ISO 5211 to make them more adaptable and interchangeable. Conventional operation methods include: manual, pneumatic, electric, gas-over-oil, electro-hydraulic, and so on.…