Astim A.S. products

Telescopic valves are suitable for the flushing of superficial liquids either for regulating or evacuating. Adjustable inlet baffles are generally used to obtain an efficient distribution and high settling efficiency in the cross flow sedimentation or grit removal tanks.

Stoplogs are generally used equipments for flow control and isolation of fluids associated with water, waste water, sewage treatment plant, power generation, irrigation schemes and process plant. Stoplogs are not only used for closing the water channel but also can be used for water level adjustment by adding or removing obturators inside the frame. 3 sided seal, for open channels, for on-seating or off-seating pressure, for grouting into channel recess or for anchor bolting t channel outlet or in channel.

The primary application of penstocks is the flow control and isolation of fluids associated with water, waste water, sewage treatment plant, power generation, irrigation schemes and process plant. Section of the correct penstock to suit the duty is important to satisfy the design criteria and provide the most cost effective solution. Operation of the penstock is governed generally by factors outside the control of the penstock manufacturer. Penstocks for open channels or wall mounted types with three or four sided EPDM seals are designed for on or off seating pressure and equipped with rising or non rising spindles which are operated manually or with actuators.

Adjustable over flow weirs are used for wide openings where the vertical travel required is not more than about 500 mm. The gate is hinged at the bottom, and is raised and lowered by means of a centrally mounted spindle which can be operated either manually, or by an actuator. As friction is very low, operating effort for tilting weirs is minimal.