Cast Steel Gate Valves

Gate valves are the most commonly used shut-off valve in the industry today. They are used where minimum pressure drop and bidirectional on-off service is required. Gate valves are not designed for throtting service. Prolonged use in the partially open position will generally damage seating surfaces.

BODY AND BONNET:
The body and bonnet design is calculated to achieve the most regular distribution of stress in all sides, as well as the minimum turbulence and resistance to flow.

Bonnets on all valves are equipped with a back seat bushing.

BODY-BONNET JOINTS:

Body-bonnet joints of gate valves are machined as follows:

On 150 Class : plain faced

On 300 Class : male and female

On 600, 900 and 1500 Classes : ring joint.

WEDGE:
The valve is normally supplied with a solid wedge. On request we produce flexible wedge, split wedges, as shown below. All the wedges are fully guided.