Ductile iron flanged ball type check valve

Standards:

Product Profile:

Check valve is also known as reverse how valve, check valve, back pressure valve, check valve. This kind of valve is automatically , opened and closed by the force generated by the flow of the medium itself in the pipeline, which belongs to an automatic valve say sewage check valve, using rubber wrapped ball as the valve disc, under the action of the medium, can be rolled up and down on the Integrated slide in the valve body, so as to open or close the valve, sealing performance is good, silence-type closure, no water hammer. The valve body adopt the whole flow channel, the flow is large, the resistance is small, the head loss is 50% smaller than the swing type, the horizontal or vertical installation can be used for cold water, hot water, industrial and domestic sewage pipe network,more suitable for submersible sewage pump.

Structure and how is works 

Structure and working principle: spherical check valve is a kind of multi-ball, multi-channel, multi-cone type inverted fluid structure of check valve, mainly by the front and back valve body, rubber ball, cone body, etc.

The rubber ball in the ball cover for a short stroke rolling to realize the valve opening and closing. When the pump is started, the water under the action of pressure to open the rubber ball, the rubber ball rolled to the right side, the conical body fixed its position by the rear valve body, check valve opened; After the pump stops, due to the backwater pressure in the piping system, the rubber ball is forced to roll to the left front valve body to achieve the closure of the check valve. The rubber ball is made of hollow steel ball, and the rubber with good elasticity can not only ensure the sealing, but also reduce the damage to the pipeline system in the process of closing the valve. The cone body with hole plays a fixed role on the steel ball when the valve is opened and eliminates the pressure of the contact area between the rubber ball and the cone body, so that the contact is surface contact and the hydraulic loss caused by the shaking of the rubber ball in the valve body can be reduced.

Features:

1.Long service life, smooth operation safe and reliable, good sealing performance:

2.Small resistance coefficient . Since it is a bail valve, water flows almost straight through the body, 1 god shock absorption effect, the water quality requirements are not strict.

4 Waterproof hammer energy-saving spherical check valve has a simple structure, mainly composed of spherical device and valve body .

5.The spherical device is composed of a ball cover and a rubber ball. The rubber ball is processed into a ball core by steel plate and lined with rubber layer to maintain certain elasticity and sufficient strength .