Flowserve Limitorque L120-190

To Next Page

To Previous Page

Limitorque

L120-190 through L120-2000 FCD LMENIM1203-01-A4 – 05/15

The approximate L120 actuator weights are provided below:

Table 3.1 – Actuator Weights

Actuator Size Control Types

Drive 1 Weight Side HW Drive 2 Weight Side HW

lb. kg lb. kg

L120-190

NCU

520 192 520 192

BIC

586 217 586 217

UEC/Clamshell

586 217 586 217

L120-420

NCU

1065 394 1065 394

BIC

1130 418 1130 418

UEC/Clamshell

1220 451 1220 451

L120-800 NCU

1270

471

1700

629

L120-2000 NCU

2500

925

3300

1221

Note 1: Torque Only

Note 2: Torque and Thrust

Note 3: NCU = No Controls Actuator

BIC = Basic Integral Controls

UEC = Universal Electronic Controller

Actuator Weights

Main Page

Table of Contents3
Introduction5
Purpose5
User Safety5
Initial Inspection and Storage Instructions6
Product Identification7
Inspection and Recording8
Short-Term Storage (Less than 1 Year)8
Figure 2.1 - L120-190 through 20008
Actuator Weights10
Table 3.1 - Actuator Weights10
Installation Instructions11
Safety Precautions11
Safety Practices12
Actuator Preparation12
Mounting Base13
Stem Acceptance13
Double Torque Switch13
Figure 4.1 - Double Torque Switch13
Table 4.1 - Mounting Base Dimensions13
Table 4.2 - Maximum Stem Acceptance13
Setting Torque Switch14
Figure 4.2 - Setting Torque Switch14
Balancing Torque Switch15
Torque Switch Terminal Connections15
Figure 4.3 - Ring Tongue Terminal15
Geared Limit Switch - Rotor Type16
Setting Limit Switch16
Table 4.3 - Terminal Dimensions by Cable Size16
Figure 4.4 - Geared Limit Switch17
Table 4.4 - Maximum Drive Sleeve Turns17
Figure 4.5 - Setting Geared Limit Switch18
Combination of Contacts19
Position Indication19
Local Position Indication19
Figure 4.6 - Position Indicators19
Remote Position Indication20
Calibrating Position Transmitter PT20SD20
Figure 4.7 - Typical Connection for a 1000 Ohm Potentiometer20
Operation21
Electrical Start-Up21
Typical Wiring Diagram22
Manual Operation22
Motor Operation23
Torque and Travel Limiting23
Maintenance24
Lubrication24
Lubrication Inspection24
Factory Lubricant25
Table 6.1 - Lubricant Weights25
Disassembly and Reassembly26
L120-190, -420, and -80026
To Replace Stem Nut Only26
L120-190, 420, 800 Disassembly27
Reassembling Actuator Sizes L120-190, -420 and -80028
Gaskets29
Figure 7.1 - L120-190 and -420 Drive Sleeve Side View (Refer to Table 8.1 for Parts List)30
Figure 7.2 - L120-190 and -420 Worm Shaft Side View (Refer to Table 8.1 for Parts List)31
Figure 7.3 - L120-190 and -420 Top View (Refer to Table 8.1 for Parts List)32
Figure 7.4 - L120-800 Drive Sleeve Side View (Refer to Table 8.1 for Parts List)33
Figure 7.5 - L120-800 Worm Shaft Side View (Refer to Table 8.1 for Parts List)34
Figure 7.6 - L120-800 Top View (Refer to Table 8.1 for Parts List)35
Table 7.1 - L120-190, -420 and -800 Typical Parts List36
L120-200038
Drive 2 Disassembly (Thrust Housing Only)38
Drive 1 (Torque Housing) Reassembly40
Drive 2 (Thrust Housing Only) Reassembly42
Figure 7.7 - L120-2000 Drive Sleeve Side View (Torque Base) (Refer to Table 8.2 for Parts List)43
Figure 7.8 -L120-2000 Top View (Refer to Table 8.2 for Parts List)44
Figure 7.9 - L120-2000 Side View (Refer to Table 8.2 for Parts List)45
Figure 7.10 - L120-2000 Exploded View46
Table 7.2 - L120-2000 Typical Parts List47
Standard Wiring Diagrams49
Figure 8.1 - Wiring Diagram - no Controls49
Figure 8.2 - Wiring Diagram - Integral Controls50
Figure 8.3 - Wiring Diagram - NCU51
Troubleshooting52
How to Order Parts53
EC Declaration of Conformity54

Flowserve Limitorque L120-190 - Actuator Weights

Table of Contents

Related product manuals