D81X groove handle butterfly valve is widely used in water supply and drainage of conveying fluid pipeline. Pipeline engineering such as fire fighting, air conditioning, gas, petroleum, chemical industry, water treatment, municipal administration, shipbuilding and so on are used as control fluid.
Groove connection valves are a series of new connection valves designed and manufactured by introducing similar advanced products from Germany. It has the advantages of fast installation, simple, reliable, not limited by installation site, easy maintenance of pipes and valves, vibration isolation, sound insulation and angle range, overcoming the analog difference caused by the connection of pipes with different axes, and solving the thermal expansion and cold contraction caused by temperature difference.