•body and union are made by hot forging of brass;
•brass alloy 59%;
•visual control of the gate position;
•unpushed by pressure stem;
•low resistance to flow;
•cylindrical thread;
•working pressure 1, 6 , p, (16 kg/sm2);
•temperature +1500Ñ;
•the valve body with corrosion-resistant coating and uncoated.