The sealing surface of the valve disc and seat is surfacing with iron base alloy or Stelli cobalt base carbide, which has the characteristics of wear resistance, high temperature resistance, corrosion resistance, good abrasion resistance and long service life.
Material: Carbon Steel,Stainless Steel,Alloy Steel Nominal Size: NIPS
Nominal Size: NIPS 2"~24",DN50~600
Pressure Rate: CLASS150~420,PN10~420
Temperature Range: -60℃~+538℃
Application range: Suitable for pipelines in various working conditions such as petroleum, chemical, pharmaceutical, fertilizer, power industry, and low temperature.
◎ Design Standard: API 6D, AP1602,ASME B16.34,GB/T 12235
◎ Pressure Temperature Rate:ASME B16.34,GB/T12224
◎ Face to Face: ASME B16.10,GB/T 12221
◎ Flange Standard: ASME B16.5,GB/T 9113
◎ Butt Weld Standard: ASME B16.25,GB/T12224
◎ Fire Safe: API 607
◎ Pressure Test: API 598,GB/T13927
RAYS Blind Valve features an advanced design for quick and safe flow isolation or fluid control within pipelines. At the heart of the valve is a blind plate that can be swiftly moved in and out by turning a handwheel. To isolate the flow, simply turn the handwheel and the blind plate will slide along a track to the center of the pipe, creating a seal that blocks fluid flow. This operation does not require any special tools, nor does it involve dismantling heavy machinery or dealing with complicated bolts and nuts. The design of the blind plate ensures a stable and reliable sealing performance in any working condition, greatly simplifying the operation and reducing operational risks. The simplicity and durability of the structure also make maintenance straightforward, reducing both maintenance costs and downtime.
The dual plate check valve features two semicircular, spring-loaded valve discs mounted on a central vertical pivot. When the valve opens, the force of the fluid and the spring act at the center of the disc, causing it to open from the base first. This design minimizes wear on the seal during opening, enhancing its durability. As the flow decreases, the discs slowly move back towards the seat due to the spring's force, ensuring a gradual closure. During backflow, the increased force on the discs leads to a faster closure, effectively reducing the risk of water hammer and hydraulic shocks. The spring’s force closes the top end of the disc first, preventing damage at the disc's base and prolonging the seal's lifespan.
RAYS Top Entry Cryogenic Trunnion Mounted Ball Valve is a type of valve widely used in cryogenic piping systems, especially suitable for the on/off control of cryogenic liquid or gas media such as liquefied natural gas (LNG), liquefied petroleum gas (LPG), liquid hydrogen, and liquid oxygen. Its design features include a top-entry valve body structure for easy online maintenance, an extended bonnet design to prevent condensed water from flowing into the insulation layer, a live-loaded sealing structure design for the valve stem, and a special design of the valve seat assembly.