'PRIME' Needle valves are made for various operating pressure and temperatures. Looking at ever increasing demand and variety of applications, we have developed special purpose valves for instrumentation and flow control application.
DESIGN: Needle valves are also known as isolation valve, shut off valve or regulatory valve. Rotating angle tipped spindle, which in turn moves axially over the orifice seat, controls flow of the fluid. At the lower most position or closed position of the spindle, inlet orifice is completely blocked and thus isolates the fluid flow. In open condition Teflon or Grafoil packing seal restricts the leakage from the bonnet end.