Emerson launches new motorised control valve for offshore chemical injection applications

Emerson has launched the TESCOM™ RC-X motorised injection rate control valve, developed for chemical injection applications at offshore production facilities. The new valve aims to reduce chemical consumption, downtime and operating costs by enabling precise and repeatable chemical dosing.

In offshore oil and gas production, operating in deeper waters, longer tie-back lines, deeper wells and high-temperature, high-pressure conditions are increasing the importance of flow assurance. Under these conditions, factors such as hydrate formation, corrosion, wax, asphaltenes, scaling and emulsions can restrict flow.

Dosing the right amount of the chemicals used to control these problems is critical to the sustainability of the process. Injecting more chemical than necessary increases consumption and costs and may require storage tanks to be refilled more frequently. Insufficient injection, on the other hand, can pose risks to equipment integrity and production continuity.

According to Emerson’s statement, the TESCOM RC-X was designed to work together with Micro Motion™ Coriolis flow meters, particularly in offshore chemical injection processes.

Operating pressure up to 15,000 psi

With its short-stroke design, the TESCOM RC-X supports operating pressures of up to 15,000 psi. The valve can be used in low-flow applications between 0.02 and 500 litres per hour.

Operating with a 4–20 mA control signal, the system allows the chemical injection rate to be adjusted in a controlled and repeatable way.

Thanks to its electric actuation, the system does not require compressed air. This makes it an alternative for applications on offshore platforms where compressed air is unavailable or cannot be reliably supplied.

Designed for more compact skids

The TESCOM RC-X is available in medium- and high-pressure models. According to Emerson, the modular valve has a smaller motor size than comparable chemical injection control products.

Its compact and lightweight design can help reduce the dimensions and total weight of chemical injection skids.

Reducing the number of moving parts in the valve also aims to lower the risk of mechanical failure and maintenance needs.

TESCOM RC-X motorised control valves have IP67 ingress protection and offer an explosion-proof design. The product is also offered in compliance with the NACE MR0175 standard on material selection in oil and gas production environments.

Emerson positions the new valve particularly for offshore processes where flow must be precisely controlled in high-pressure, low-flow chemical injection applications.