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Limitorque L120 Series Electric Actuators

Limitorque L120 Series Electric Actuators
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Limitorque L120 Series Electric Actuators - 1

Multi-Turn Electric Valve Actuators For a wide range of process applications

Limitorque L120 Series Electric Actuators - 2

Flowserve Limitorque L120 series: A solid record in demanding applications Proven performers under the most challenging circumstances, Limitorque’s L120 actuators are ideal for valves requiring rotary or linear movement. With eight unit sizes, L120 electric actuators make it easy to meet or exceed your requirements for positive, dependable valve actuation. Whether used with gate valves, globe valves, penstocks or sluice gates, versatile L120 Series actuators can be direct-mounted or combined with the V or SR series bevel gearboxes for any rising or non-rising stem application. When combined...

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Limitorque L120 Series Electric Actuators - 3

Low-maintenance requirements make the L120 Series ideally suited for water and waste treatment applications. L120 actuators meet rigid safety requirements and are available in weatherproof, explosion-proof and submersible configurations. The L120 makes valve control easier for some of the world’s most demanding customers. Petrochemical Installations such as refineries, pipelines, terminals, tank farms, cokers and off-shore platforms rely on the L120’s safety, endurance and operational efficiencies. The L120 has network compatibility, explosion-proof certification, and resistance to...

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Limitorque L120 Series Electric Actuators - 4

L120 series multi-turn electric valve actuators L120-10 through -40 series L120-10 through 40 actuators utilize die-cast aluminum housings and compartment covers to maximize performance in a reduced weight design. All metallic gearing is lubricated. Anti-friction bearings are used throughout. Motors include class F insulation and thermal protection, and are specially designed for valve actuation. Manual declutch lever mechanically disconnects the motor from the handwheel through the clutch assembly. Return to motor operation is automatic in all actuators when the motor is energized. A...

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Limitorque L120 Series Electric Actuators - 5

L120-85 through 2000 electric actuators utilize iron housing construction for strength and durability. Actuation of valves, gates and dampers Direct Mounting The L120 series can be directly coupled with valves for torque-only applications. For thrust applications, a separate thrust base is used for the L120-10 through -85. L120/V, L120/SR Rising stem valves may be operated by an L120 coupled to a v Series bevel gearbox or SR series spur gearbox. Thrusts to 921 000 lb (4100 kN) and torques to 19 000 ft-lb (26 000 N-m) are available. L120/WG and L120/HBC The L120 series may be coupled to a WG...

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Limitorque L120 Series Electric Actuators - 6

The L120, with 30+ years of proven performance, continues to deliver reliable operation in a wide range of process control environments. Standard control packages utilize circuit board technology to reduce the need for hard-wiring. Control stations are available with a variety of illuminated indicator and selector switch options. These control stations are available in a standard design for basic integral control packages and an electronic version for use with the UEX electronic controls in network control packages. Human interfaces Control stations are available with a variety of...

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Limitorque L120 Series Electric Actuators - 7

L120 specifications Gear housing • Cast aluminum, L120-10 through -40; cast iron, L120-85 through -2000 • Lubrication — Grade 0 or Grade 00 • Gear reduction — Double-reduction type > Worm gear (alloy bronze) and spur gear (heat-treated steel), L120-10 through 85 > Worm gear (alloy bronze) and spur gear (heat-treated steel), and worm (alloy steel) and helical gearing (heat-treated steel), L120-190 through -2000 Electrical compartment covers • Cast aluminum, O-ring sealed > Hardware is nickel-plated carbon steel, L120-10 through -85, and L120-190 through -2000. Stainless steel optional for...

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Limitorque L120 Series Electric Actuators - 8

Temperature rating • Standard operating temperature range is from -20°F to 150°F (-29°C to 66°C). Optional extended ranges available. • For explosion-proof applications, the Factory Mutual XP temperature rating is shown on the FM nameplate. Actuator nameplate • The stainless steel nameplate includes the Flowserve Limitorque name, point of manufacture, actuator type and size, order number, serial number, and space for customer tag information. Controls options • Available controls include BIC (Basic Integral Controls), Mod 20 modulating controls, and UEX (electronic controls). • Local...

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Limitorque L120 Series Electric Actuators - 10

Standard Optional gear reduction 1:1 Top Mount 4.2:1 Side Mount 1:1 Top Mount 5.7:1 Side Mount 1:1 Top Mount 12:1 Side Mount Handwheel ratios 18:1 - 71:1 (Same as overall ratio) Side Mount Note 1: Mounting holes straddle centerline. Note 2: L120-85, -190, -420 and -800 are suitable for both torque and thrust applications. L120-2000 is suitable for torque as standard; thrust units are optional. Optional gear reduction

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Limitorque L120 Series Electric Actuators - 11

L120 series performance Optional gear reduction Handwheel ratios Note 1: Mounting holes straddle centerline. Note 2: L120-85, -190, -420 and -800 are suitable for both torque and thrust applications. L120-2000 is suitable for torque as standard; thrust units are optional.

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Limitorque L120 Series Electric Actuators - 12

Flowserve Corporation Flow Control United States Flowserve Limitorque 5114 Woodall Road P.O. Box 11318 Lynchburg, VA 24506-1318 Phone: 434-528-4400 Facsimile: 434-845-9736 Italy Flowserve Limitorque Via Rio Vallone 17 20883 Mezzago (MB), Italy Phone: +39-039-62060-1 Facsimile: +39-039-62060-213 Japan Limitorque - Nippon Gear Co., Ltd. NOF Bldg. 9th Floor 1-11-11, Kita-Saiwai, Nishi-Ku Yokohama (220-0004) Japan Phone: 81-45-326-2065 Facsimile: 81-45-320-5962 Singapore Flowserve Limitorque 12, Tuas Avenue 20 Singapore 638824 Phone: 65-6868-4628 Facsimile: 65-6862-4940 China Limitorque...

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