タイトルまたは説明

A. Specification: DN*0~DN**0 B. Brief introduction to the product: Small volume, light weight, compact structure; automatic quick closing by relying on torsion spring; available to be installed at horizontal and vertical pipelines; safe and reliable performance, and good anti-interference performance. C. Pressure and temperature Working pressure: 1.0MPa/1.6MPa Working temperature: **5℃~***0℃ D. Materials Valve body: Cast iron/ ductile iron/ carbon steel/ stainless steel Valve disc: Electrocoated ductile iron/ aluminum bronze/ stainless steel Spring/ shaft: Stainless steel E.Place of Origin: Tianjin, *****