The information and materials (Materials) contained in this web site have been prepared solely for the purpose of providing information about Dual Valves Intl. (SA) cc, its Principals’ products and partners to interested parties.
DUAL‘s Slimline Valve’s heart is a reinforced urethane or rubber ball. The unique design of the valve allows free movement of the ball. The ball lifts completely out of the flow when the pump starts and allows free flow of liquid without any interference. As the pump stops, the ball falls and positively locates in the seat due to its own weight and back pressure of the liquid. This results in dropless sealing.
Low head losses.
Non clogging, self cleaning ball.
Minimum back pressure for tightness: 0.3 to 0.5bar
Removable bonnet for cleaning or replacing of ball.
Silent, non-slam, reduces pipe hammer.
Fabricated valves face-to-face can be altered to suit different types of valve face-to-face dimensions.