Locally manufactured ball valves

August 2015 Valves, Actuators & Pump Control

The Titan range of extreme service ball valves is designed for very aggressive service in applications that require repeatable tight shut-off and long life characteristics. The valves can be used in tight shut-off isolating as well as in modulating control applications, ranging from cryogenic to temperatures up to 850°C. When replacing other valve types, a comparison of CV values can often indicate a selection of smaller valves than is possible with conventional gate and globe types.

Titan valves can be considered in applications where the following conditions are encountered:

• Temperatures higher than 300°C combined with large temperature fluctuations.

• Erosion by abrasive media such as catalyst, coke, fines, slurries and pipe scale at high velocity.

• High cycle – in excess of three times per hour.

• Emergency shutdown – isolation of flow in less than five seconds.

Features include:

• Ball and seat coatings several times harder than the ‘valve industry standard’ Stellite.

• Zero leakage.

• Ball and seats in constant wiping contact.

• All metal to metal construction.

• Seats protected from flow in open and closed positions.

• Integral seats.

• Full round port as standard.

• High CV.

• Uninterrupted flow path for abrasive media.

• Quarter turn operation.

• Easily automated.

Many users try to avoid using ball valves to control slurry applications, but the Titan ‘D’ Port slurry control valve design can handle the most severe high temperature and pressure slurry applications, giving a valve life of three to five years maintenance free. Live loaded packing ensures that zero leakage to atmosphere is maintained, and continuous wiping of the seat by the ball ensures drop tight shut-off when required. Local manufacture ensures that spare parts for maintenance are always available at short notice.

For more information contact Keith Mitchell, Heaton Valves Africa, +27 (0)31 902 8241, [email protected], www.heatonvalves.co.za

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