Established in 1993, Guanfa Valve Manufacture Co., Ltd. is specialized China rotary valve manufacturer and distributor of valves, hoses, tubes and pipes. Our oem rotary 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.

RVC Drop-Through Rotary Valves consist of a tubular cast iron or stainless steel casing, a horizontally mounted rotor with a certain number of oblique V-shaped cross section compartments, a drive unit and casing covers at both ends.Two compartments at a time of the continuously turning rotor are filled up with material through the inlet at the top of the Rotary Valve. After less than half a turn the material falls through the bottom opening through outlet with the same cross section opposite the inlet. Feed rate: 5 – 9 – 14 – 20 – 38 litres per revolution (0.17 – 0.3 – 0.5 – 0.7 – 1.3 cu ft per revolution). Available in ATEX zone 22 version. Robust and compact design. Easy access to all internal mechanical parts
Fixed rotor speed: 10 / 20 / 30 r.p.m. Variable rotor speed: 4 – 22 r.p.m. Casing: cast iron or 304 / 316 stainless steel. Casing surface treatment: chrome or nickel-plated, Teflon surface coated. Rotor: integral with bevelled blades, with scrapers (Viton, Vulkolan, Teflon)
Rotor surface treatment: nickel-plated, Teflon surface-coated. Shaft seals: lubricated or air- / nitrogen-purged, high temperature-resistant.

RVS Blow-Through Rotary Valves consist of a tubular cast iron or stainless steel casing, a horizontally mounted rotor with a certain number of oblique V-shaped cross section compartments, a drive unit and a casing cover at each end.Two compartments at a time of the continuously turning rotor are filled up with material through the inlet at the top of the Rotary Valve. After less than half a turn the material falls through the bottom opening into an air stream passing through a pneumatic conveying pipeline connected with the bottom part of the Rotary Valve. Feed rate: 5 – 9 – 14 – 20 – 38 litres per revolution (0.17 – 0.3 – 0.5 – 0.7 – 1.3 cu ft per revolution). Available in ATEX zone 22 version. Robust and compact design
Rotor: integral with beveled blades, with scrapers (Viton, Vulkolan, Teflon). Fixed rotor speed: 10 / 20 / 30 r.p.m. Variable rotor speed: 4 – 22 r.p.m. Rotor surface treatment: nickel plating, Teflon coating, hardened blades. Casing: cast iron or 304 / 316 stainles steel
Casing surface treatment: nickel plating, Teflon coating.

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