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.…

Recently, a batch of high-pressure pipeline ball valves of DN250-DN400 PN63-PN320 have been successfully completed in our RAYS factory. DN250 PN320 and DN300 PN320 passed the high-pressure nitrogen test of 32MPa for three cycles to meet the requirements in harsh working conditions. The DN400 PN63 metal seated ball valve passed the high-pressure nitrogen test of 6.3MPa for three cycles, and all products meet the Grade A zero leakage requirement in harsh working conditions. This batch of products will be delivered to Russia in upcoming days at an ambient temperature of minus 60 degrees Celsius YAMAL project put into use.Product introductionSpecial purpose metal seated ball valves and high-pressure pipeline ball valves are suitable for Class150 ~ Class2500, PN16 ~ PN420 various pipelines, used to cut off or connect the medium in pipelines. Through the choice of: carbon steel, stainless steel, alloy steel and other valve material – special purpose metal seated ball valve and high-pressure pipeline ball valve can be applied to water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea and other media. Manual, worm drive, pneumatic or electric operations are available according to customer needs.The high-pressure pipeline ball valve is designed and manufactured by: absorbing foreign high-pressure pipeline ball valves technology, adopting special sealing structure, using reliable sealing performance, realizing zero leakage truly, and passing the high-pressure gas zero leakage test requirements. Special purpose metal seated ball valve is designed and manufactured with our special structure, which can realize zero leakage. The ball and seat of the metal seated ball valve for special purpose have good shearing self-cleaning function, which eliminates the phenomenon of stuck resistance caused by dust particles sticking to the valve seal, and keeps the appearance of the conventional metal seated ball valve. The seal of this metal seated ball valve produced by RAYS is processed by supersonic flame spraying tungsten carbide superwear-resistant alloy technology. It has the properties of high hardness and ultra-normal wear resistance where the hardness is up to HRC65~80. Its service life is far longer than the traditional hard sealed ball valve, which is suitable for: organosilicon, polysilicon project, and other special working condition systems.Structural featuresRAYS developed and produced a special use metal seated ball valve with: the advanced supersonic spraying, nickel-based flame spray ball, and seat hardening technology. This is to prevent the valve at high temperatures rise to death, scraper device, such as patent structure, good sealing performance, completely fireproof structure design, natural anti-static structure design, the function of blocking and discharge etc., solved the hard particle medium under harsh conditions for sphere wear-resisting coating wear easily, fall off, medium coking, valve stuck, short service life, to ensure that the metal seated ball valve wear-resisting reliable seal under various temperature and pressure.Quality assuranceQA from the design of ball valves to the procurement, processing, assembly, testing, subsequent surface treatment, packaging, and shipping. This is not only to meet the company’s quality system requirements, but also for the third-party agencies/customer end-users to witness at the same time. Also, this is to ensure that every valve can meet all quality requirements when leaving the factory.Applicable standard specificationsDesign and manufacturing standards: API 6D, API 608, BS 5351, GB/T 21385Structural length standard: ASME B 16.10, GB/T 12221, GOST 28908Connecting flange standard: ASME B 16.5, GOST 33259, GB, JB, HG, SH, BS, DIN, JIS, etc.Test standard: API6D, API 598, GB/T 13927, GB/T 26480, JB/T9092, ISO 5208 GOST 9544…

RAYS Pneumatic Globe Valves, the body materials have been specially tested for HIC resistance to hydrogen cracking, which can ensure the service life of the site.…