Where you can’t crack under pressure.

In extreme heat and extreme cold, under water and under pressure, at risk of explosion and corrosion, a valve actuator must be tougher than the forces that surround it. That’s why EIM actuators boast such rugged features as ductile iron gear housings, alloy steel gears, and cast-bronze drive sleeves.

Built to last, some EIM operators are still in service after 50 years of harsh conditions.

Case In Point

Every sewage treatment plant has the potential to be overloaded by influent during particularly heavy rainfall events. In the past, one wastewater treatment plant had relied on hydraulic actuators – but those actuators frequently experienced failures from hydraulic fluid leakage/contamination when floodwaters were rising.

EIM talked to the consulting engineers and plant managers, and came up with a solution. We put hermetically sealed limit switches inside the actuator – and isolated all other controls safely up above the flood plane. The result was a line of actuators that can work reliably underwater for extended periods of time during flood situations. We christened the new submersible actuators AquaNaught…an ideal option for any installation where flooding is a possibility.

Environmentally Speaking

• All of our electric actuators have internal heaters to prevent condensation and safeguard the electronics in cold climates—as on the Alaska pipeline, where for decades EIM actuators have withstood -70° temperatures.
• As for hot climates, for more than 50 years, EIM equipment has held up in the 130°+ heat of Saudi Arabia and the Mojave desert. And from Gulf Coast sands to South American jungles, EIM actuators withstand the humidity and moisture that wreak havoc on lesser actuators.
• Any unit installed near salt water is equipped with ceramic coatings to help prevent corrosion.
• EIM units can handle such high-vibration environments as gas compressor stations with reciprocating compressors.
• All our electronics are encased in order to prevent electromagnetic interference.
• Every standard Series 2000 and TEC2000 actuator is explosionproof, waterproof, and corrosion-resistant.