Established in 1993, Guanfa Valve Manufacture Co., Ltd. is specialized China needle valve manufacturer and distributor of valves, hoses, tubes and pipes. Our oem needle valves are suitable for acid, alkali, water, steam, seawater, coal gas and natural gas. They are widely used in petroleum, chemical, paper making, fertilizer, brewing and metallurgy. The use of specialized software of Pro/E and CAD has shorted the P&D and trial manufacture cycle, and greatly improved the service life and dependability of products. Our high-quality products have been exported to the North Amercia, UK, USA, Germany, Italy, India, France, Australia, Japan.

The 589 Series Needle Valve compact design promotes multiple configurations to fit the exact end use application. The 589 Needle Valve is rated to 500 psi and is available in an In-Line and Right-Angle version. The standard 589 Series Needle Valve has a Teflon stem seal, Black Filled Polyester Knob, and a Brass Needle with 30 Degree Kel-F Soft Tip for positive shut-off. Stainless Needle, Yellow Knob and 5 Degree Kel-F Tip are optional. The panel mount requires a .563 hole and is supplied with one brass Hex nut. The maximum panel thickness is .125.
Design Manufacture According: ANSI B16.34-1996. Link a Form: NPT(M,F) Threads connecting;Socket welding connections. Structure Characteristic: cone seal;Plug-upgrade
The Valve Examines with Experiment : API STD598-1996. Material:Carbon steel:GB/T 12228-1989,Stainless steel:GB/T1220-1989.

One-piece stainless steel forged body
Shroud protects stem threads against ingress of dirt and dust
Stem threads are cold rolled for high strength and smooth operation
Stem threads above packing protected from system media
Safety back seating needle seals in fully open position
Stainless steel handle with square drive stem and lock nut
Nonrotating hardened needle for positive shutoff
Every Swagelok F10 series valve assembly is factory tested hydrostatically; a shell test at 1.5 times maximum rated working pressure and a seat test at 1.1 times maximum rated working pressure, in accordance with BS EN 12266-1 (formerly BS 6755 part 1).The antitamper handle reduces the risk of human error and deliberate tampering. The valve can be operated with the antitamper key.

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