TZF series Plastic lined bellows single-seat regulating valve

TZF series plastic lined single-seat regulating valves applies plastic lining structure on all valve bodies and internal parts, which effectively barriers corrosive medium to the metal material of valve. Liner material and metal is combined completely, as the metal lumen of valve body is processed by gear treatment, thereby the life-time and performance of liner material is extended. Valve stem is double sealed by both F46 bellows and V-type PTFE packing, to completely avoiding the possibility of medium leakage from valve stem. Plastic lined bellow single-seat regulating valve is applied specially for those conditions of extremely corrosive medium in low pressure and normal temperature.