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Piston flow regulating valve (also known as: needle valve). It is a valve that can meet a variety of special regulatory requirements.

The welded body eliminates the need for gaskets and bolts, which are common maintenance items in traditional valves.

No moving mechanical parts, so high reliability, low maintenance, and simple and solid structure are very reliable for long-term operation.

It has been widely used in chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, refrigeration, sanitation, plumbing, fire protection, basic engineering fields such as electric power play an important role in people’s lives.