Rising Stem Ball Valve (RSBV) is a new type of ball valve, which is mainly used to cut off, distribute, and change the flow direction of medium in the pipeline. RAYS Rising Stem Ball Valve with all-metal structure and fire proof design, can be applied to the temperature range from -196℃ to 600℃. Compared with the conventional ball valve, the RSBV’s ball & seat movement has no friction, small opening & closing torque, and better sealing performance. It can be adapted to general working medium such as: water, solvent, acids, and natural gas. However, it is also suitable for working conditions such as: oxygen, hydrogen peroxide, methane, ethylene, etc.Rising Stem Ball Valve utilizes the cooperation of the inclined surface of the bottom surface of the valve stem and the spiral groove to realize the tilting and rotation of the ball. When the valve is opened, the ball is tilted away from the valve seat. Then, the fluid in the pipeline passes through the valve along the spherical surface evenly, which reduces the local erosion of the valve seat by the high-speed fluid. Finally, the ball rotates to full open position. When the valve is closed, the ball relies on the mechanical wedge of the stem bevel to be used on the seat to produce the required sealing pressure to ensure reliable sealing performance. The sealing specific pressure is adjusted according to the changes of fluid erosion wear, corrosion degree & working pressure, which prolongs the service life of the valve.Compared to regular ball valves, RAYS Rising Stem Ball Valves have the following design features:No WearThe ball of the rising stem ball valve rotates away from the valve seat, which eliminates the friction with the valve seat and solves the wear problem of the traditional ball valve, gate valve, and plug valve seats.Single-seat DesignThe static single seat of the RSBV can guarantee the bidirectional zero leakage and avoid the problem of pressure rising in the cavity of the double seats.Anti-abrasion Hard Sealing BallThe sealing surface of the ball is surfaced with a layer of cemented carbide and polished to meet the sealing performance in very harsh medium.Dual Stem GuidesValve Stem guide groove slides along the rigid guide pin then controls the valve stem’s lift and rotate smoothly.Mechanical Wedge ForceThe cam bevel on the lower end of the stem provides a mechanical wedge force to keep the ball and seat tight.Inner Leak DetectionThe valve body is designed with a special device to detect the internal leakage of the valve.Low Operating TorqueRSBV sealing surface has no friction, so the opening and closing torque is small.Self-cleaningWhen the ball is deviated from the seat, the medium can flow 360 degrees along the sealing surface and rinse the impurities in the medium.Injectable SealantCan be maintained during operation, and the sealing grease is injected through the greaser to completely control the volatilization and prevent leakage.Long LifeRSBV could replace many troublesome valves such as ball valves, gate valves, globe valves, and plug valves. The unique characteristics of the RSBV are that it can effectively reduce the device failure rate, greatly reduce the user’s use, and maintenance costs. The RSBV uses a simple and effective movement to coordinately control the separation, rotation & compression of the sealing contact surface, so that the valve switching process has no friction, zero leakage, and low torque operation. For conditions with low leakage and frequent opening/closing requirements, the RSBV is undoubtedly the most ideal application.For more information about the rising stem ball valve, please visit https://www.raysvalve.com/ , or email to info@raysvalve.com , or call 0577-66999000…

RAYS Cryogenic Ball Valves are mainly used in liquefied natural gas, liquefied petroleum gas installations, air separation devices, and other low-temperature industries. The most advanced Lip-Seal sealing technology is adopted by RAYS Cryogenic Ball Valve, which can maintain excellent sealing performance in application.For the ball valves which are commonly used in low temperatures, RAYS fully considers the requirements of various parts of the valve under low temperature conditions. Due to the temperature stress of the valve body under low temperature conditions, the additional stress of expansion and contraction of the connecting pipe is very high. Also, the rigidity of the casing is important to keep the valve sealing pair from deforming. In order to prevent the brittle failure of stress concentration at low temperature, RAYS Cryogenic Ball Valve avoids sharp angles or grooves on the shell during the production process.In low temperature environments, the valve is designed with an extended stem to prevent damage caused by the temperature of packing box to freezing point. The austenitic stainless steel will undergo partial transformation at low temperature, which will result in phase transformation stress and deformation, and the temperature change will also produce temperature change stress and deformation. In the manufacturing process, RAYS thoroughly pays attention to the low-temperature cryogenic treatment of all parts of the valve to reduce the effect of temperature on the sealing performance for the Cryogenic Ball Valve.Cryogenic Ball Valve medium is usually flammable and explosive, and when the valve seat is a non-metal polymer, there is danger of static electricity accumulation. That potential static can lead to a spark which can cause combustions and explosions. Therefore, within the design and manufacturing, RAYS sets a conduction device between the valve stem + the valve body and valve stem + disc to extract static electricity.The low-temperature liquefied gas medium will vaporize and expand when the temperature rises. For example, if there is a closed space in the valve, the internal pressure of the valve will increase several times and cause leakage when the liquid is vaporized. In severe cases, the valve body cracks and causes an accident. The ball valve forms a confined space when fully closed and fully open, so RAYS adopts the valve cavity automatic pressure relief design. The RAYS Cryogenic Ball Valve usually adopts the following two internal venting methods: 1) Through the pressure relief hole, the valve middle cavity is connected with the pipeline inlet end, so that the middle cavity pressure is always balanced with the pipeline inlet end; 2) While adopting DBB structure, once the chamber pressure reaches the set safety relief pressure, the cavity medium is discharged into the inlet line.RAYS Cryogenic Ball Valve product range：SizeNPS2’’-24’’Pressure RatingClass 150-2500Temperature-196 ~ 150℃Body MaterialAustenitic Stainless SteelTrim MaterialStainless Steel, Lip Seal Sealing, Cryogenic non-metallic Seal Ring / SeatRAYS follows the spirit of craftsmanship and pursues to the highest quality. RAYS strictly controls the factory during production of all valves, and strives to supply higher quality product and service for the Cryogenic Ball Valve to all customers and end users. For more details, please click on https://old.raysvalve.com/…

Recently, RAYS sets of 20″ 600LB and 24″ 600LB fully-forged buried top entry ball valves have been successfully produced in the factory, and will be delivered in May 2018 to our international customer for use in a large Gas project.Top Entry Ball Valves are widely used in: petroleum & natural gas pipelines, oil extraction, oil refining, petrochemical, chemical, chemical fiber, metallurgy, electric power, and nuclear power plants. The biggest difference between top entry ball valve vs. the ordinary ball valve is that the Top Entry Ball Valve does not need to be disassembled from the pipeline. It can complete in-line maintenance easily which greatly reduces the maintenance time. Therefore, the loss of production can be minimized to the lowest point, especially for the industry which pursues high efficiency. For its less leakage point characteristic, it is more suitable for low emission requirement.[RAYS TOP ENTRY BALL VALVE]Technical featuresFully-forged, Extended Stem, Extended Pipe, Soft/Metal SeatedSize2” – 40”Pressure Rating150LB-2500LBMFG StandardAPI 6DMaterialsWCB/A105/LF2 or other special materialsTemperatureLow, Normal, or HighFor more information please click https://www.raysvalve.com/, or e-mail to info@raysvalve.com .…

On March 21, 2018, RAYS Valve was completing a fire test with the Quality Supervision Bureau.Valve fire test is the test of simulating a valve in an actual fire environment, which can reflect the fire resistance of the valve. The fire resistance of the valve is the ability of the valve to keep working normally in a high temperature flame. It is an important indicator for the safety performance of the valve.Picture of a Valve after the fire testAnother picture of a Valve after the fire testThis is the third batch of fire-safe Ball Valve testing carried out by our company. After this test, our Trunnion mounted Ball Valves will cover the whole series of API 607 and API 6FA fire proof certificates. This provides a strong guarantee for the users of RAYS Valve and lays out a solid foundation for our future within the fire-safe Ball Valve market.…

RAYS announced today the release of the top entry ball valve.TOP ENTRY BALL VALVE is mainly used in oil and gas pipelines, oil recovery, refining, petrochemical, chemical, chemical fiber, metallurgy, electricity, nuclear power, food and paper making equipment industry. Its most difference from common ball valve is that its maintenance can be made on pipe line and without dismounting from the pipe line.“As the industry deals with more demanding in safe and time-saving conditions, Top entry ball valves which could be customized in stem extension design can be good adapt to these challenging environments,” said Daniel Li, Chief Engineer from Rays Flow Control. “When the valve is in the pipeline needs to be repaired, there is no need to remove the valve from the line, just pull down the flange bolts and nuts, and remove the bonnet and seat assembly together from the valve body, repair the ball and seat online. This repair saves time and reduces the loss of production to the lowest point.”The common driving types are manual, electrical, pneumatic and hydraulic. And the top pad of valve designed according to ISO 5211, which is convenient for connection and exchange of various drivers.The top entry ball valve has undergone an extensive qualification test program that qualifies the full product range to API 6D/ISO 14313,ASME B16.34 for performance and API 607/ISO 10497 for fire testing.Forged Top Entry Ball ValveFor more information about the top entry ball valve, please visit https://www.raysvalve.com/Products/ball_valve/ClassicBallValve/150.html…