The valves are manufactured in steel and stainless steel versions. They have connectors with cutting rings for pipes with outer diameter Ø6, Ø8 or Ø10 mm and wall thickness of 1 mm at the inlet and outlet or ending of spherical type Ø12 x 1.5 at the inlet. The bonnet is welded to the body. In the steel version, the body seat welded with acid-resistant electrode increases the durability of the valve. The pin with plug is made of tempered stainless steel. Corrosion-prone parts have suitable protective coatings. The knob is made of sheet metal and painted with epoxy enamel for quick valve operation.