1. Ultra-low temperature performance: Through deep cold treatment technology, the valve ensures reliable sealing within the temperature range of -100℃, without the risk of brittleness.
2. Side-mounted design: The valve cover is installed sideways, eliminating the need to dismantle the pipeline during maintenance, significantly reducing maintenance costs and downtime.
3. Dual sealing guarantee: Using a combination of metal hard seal and soft seal, it has strong anti-wear properties and achieves zero leakage in both directions.
4. Anti-frosting structure: The elongated valve stem design and low-temperature insulation protection effectively reduce heat conduction and prevent external frosting.
5. Lightweight and high-strength: Optimizing the valve body structure, it reduces weight while ensuring the pressure-bearing capacity, facilitating installation and transportation.
6. Wide applicability: Compliant with international standards such asAPI 6D、 BS6364 and ISO28921, suitable for high-end fields such as LNG storage and transportation, and chemical industries.
◎ Design standards: Stainless Steel, Alloy Steel
◎ Main material: NPS1/2～NPS8,DN15～DN200
◎ Size range: CLass150～CLass300,PN16～PN50
◎ Pressure level: -196°C~+150°C
◎ Temperature range: Manual, electric, pneumatic, etc.
◎ Application scenarios: LNG, LPG, LNG low temperature conditions and long-distance pipelines such as oil, gas, and natural gas.
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' rising stem ball valve is designed to operate without friction between the ball and the seat during opening and to achieve zero leakage when closed. This makes it well-suited for demanding conditions. The valve is made entirely of metal and is fire-resistant, capable of functioning in extreme temperatures ranging from -196°C (320.8°F) to 538°C (1000.4°F). It can handle media with particulates like sand and short fibers, and meets NACE standards for corrosion resistance, ensuring it can resist sulfide stress cracking in harsh environments. The valve also features a self-cleaning mechanism. When the ball is tilted away from the seat, the fluid flows 360° around the ball's sealing surface, effectively removing any debris. This prevents damage from high-speed fluid flows and keeps the sealing area clean. The rising stem ball valve is ideal for various applications including exhaust, fluid transfer, pipeline isolation, bypass, product segmentation, and emergency shutdowns, particularly where high switching frequencies and zero leakage in high temperatures are required.
The globe valve is mainly composed of valve body, valve cover, valve disc and valve stem. The handwheel applies a certain torque at the upper end of the valve stem. The valve stem is passed to the valve petals through the valve stem, so that it moves up and down along the valve stem axis to achieve fully turned on or fully closed movements. The force applied by the handwheel acts on the disc to hold it against the seat to seal. The single disc globe valve is designed to enter the medium by the valve disc sealing surface below, the medium force is opposite to the direction of valve closing, so the valve closing torque is large, so the single disc globe valve is mainly used in low pressure or small diameter pipelines. At the same time, the globe valve does not rub with the valve seat before the valve is closed, thereby reducing the wear of the cover surface and effectively extending the service life of the valve.