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Stainless Steel SS316 45 Degree Y Type Needle Valves
Stainless Steel Ss316 45 Degree Y Type Needle Valves
Needle valves are capable of controlling pressure and flow. Needle valves are linear motion valves, these valves are used for small volume throttling in instrumentation systems. Needle valves have metal-to-metal seats, but due to their small size, they can be used for positive shutoff. These valves are capable of volume control, and precision meter flow can be controlled by needle valves.
The working principle of Stainless Steel Ss316 45 Degree Y Type Needle Valves
At the end of the mandrel is a tampered needle that moves into the valve seat so it can restrict or stop fluid flow through it. The movement of the needle in and out of the seat is controlled by a handwheel operated spindle. Fluid passing through the valve will turn ninety degrees and pass through an orifice whose size can be changed by placing a cone against the seat. The needle plunger is at the end of the screw, so when the screw is turned the plunger will retract and flow between the plunger and the seat is possible. Fluid flow will be impeded until the plunger is retracted and flow adjustment can be made. Some properly threaded stems have slow linear motion, so the full flow portion requires many turns, making needle valves suitable for regulating flow.
The advantages of Stainless Steel Ss316 45 Degree Y Type Needle Valves
1. The Y-shaped structure valve body has the characteristics of improving flow capacity and reducing resistance, and can be applied to various harsh working conditions such as high temperature, high pressure and high erosion;
2. Spherical valve seat, rear valve seat inverted seal can isolate the system medium design;
3. Stem transmission thread hardening process, the lower valve stem is hardened with a smooth surface, which reduces the friction between the thread and the packing and effectively increases the service life;
4. Products with 180-degree full-through flow channel holes can be customized;
5. The valve core and seat are all surfacing with Stellite alloy, the ratio of 6# and 12#;
6. Before the valve leaves the factory, each valve has passed the water pressure strength test (1.2 times the rated pressure), and then passed the nitrogen sealing test (0.3 times the rated pressure)
