Profile: Rhinoflex Valves Pty Ltd specializes in providing pinch valves, and check valves. Our pinch valve consists of a rubber sleeve that gets pinched (squeezed) between two mechanical pinch bars, or squeezed close with air or fluids. This rubber sleeve is housed inside a frame or body, so that the mechanism can be built around it. Our slip-on check valves are manufactured with an intergral reinforced flexible sleeve and complete with heavy duty clamps, which can be easily attached directly over the pipe end.