Flowserve Limitorque L120-190 Manuale utente

Experience In Motion

USER INSTRUCTIONS

Installation

Operation

Maintenance

Limitorque

®L120-190 through L120-2000

FCD LMENIM1203-01-A4 – 05/15

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

ﬂowserve.com

Contents

1 Introduction 5

1.1 Purpose 5

1.2 User Safety 5

2 Initial Inspection and Storage Instructions 6

2.1 Product Identiﬁcation 7

2.2 Inspection and Recording 8

2.3 Short-Term Storage (less than 1 year) 8

3 Actuator Weights 10

4 Installation Instructions 11

4.1 Safety Precautions 11

4.2 Safety Practices 12

4.3 Actuator Preparation 12

4.3.1 Mounting Base 13

4.3.2 Stem Acceptance 13

4.4 Double Torque Switch 13

4.4.1 Setting Torque Switch 14

4.4.2 Balancing Torque Switch 15

4.4.3 Torque Switch Terminal Connections 15

4.5 Geared Limit Switch – Rotor Type 16

4.5.1 Setting Limit Switch 16

4.5.2 Combination of Contacts 19

4.6 Position Indication 19

4.6.1 Local Position Indication 19

4.6.2 Remote Position Indication 20

4.6.3 Calibrating Position Transmitter PT20SD 20

5 Operation 21

5.1 Electrical Start-Up 21

5.1.1 Typical Wiring Diagram 22

5.2 Manual Operation 22

5.3 Motor Operation 23

5.4 Torque and Travel Limiting 23

6 Maintenance 24

6.1 Lubrication 24

6.1.1 Lubrication Inspection 24

6.1.2 Factory Lubricant 25

7 Disassembly and Reassembly 26

7.1 L120-190, -420, and -800 26

7.1.1 To Replace Stem Nut Only 26

7.1.2 L120-190, 420, 800 Disassembly 27

7.1.3 Reassembling Actuator Sizes L120-190, -420 and -800 28

7.1.4 Gaskets 29

7.2 L120-2000 38

7.2.1 Drive 2 Disassembly (Thrust Housing Only) 38

7.2.2 Drive 1 Disassembly (Torque Housing) 38

7.2.3 Drive 1 (Torque Housing) Reassembly 40

7.2.4 Drive 2 (Thrust Housing Only) Reassembly 42

8 Standard Wiring Diagrams 49

9 Troubleshooting 52

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

10 How to Order Parts 53

11 EC Declaration of Conformity 54

Figures

Figure 2.1 – L120-190 through 2000 8

Figure 4.1 – Double Torque Switch 13

Figure 4.2 – Setting Torque Switch 14

Figure 4.3 – Ring Tongue Terminal 15

Figure 4.4 – Geared Limit Switch 17

Figure 4.5 – Setting Geared Limit Switch 18

Figure 4.6 – Position Indicators 19

Figure 4.7 – Typical Connection for a 1000 ohm Potentiometer 20

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

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 View 46

Figure 8.1 – Wiring Diagram – No Controls 49

Figure 8.2 – Wiring Diagram – Integral Controls 50

Figure 8.3 – Wiring Diagram – NCU 51

Tables

Table 3.1 – Actuator Weights 10

Table 4.1 – Mounting Base Dimensions 13

Table 4.2 – Maximum Stem Acceptance 13

Table 4.3 – Terminal Dimensions By Cable Size 16

Table 4.4 – Maximum Drive Sleeve Turns 17

Table 6.1 – Lubricant Weights 25

Table 7.1 – L120-190, -420 and -800 typical parts list 36

Table 7.2 – L120-2000 typical parts list 47

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

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1.1 Purpose

This Installation, Operation, and Maintenance Manual explains how to install and maintain L120-190

through -2000 actuators. Information on installation, disassembly, reassembly, lubrication, and parts is

provided.

1.2 User Safety

Safety notices in this manual detail precautions the user must take to reduce the risk of personal injury

and damage to the equipment. The user must read and be familiar with these instructions before

attempting installation, operation, or maintenance. Work to be performed on the actuator should be

carried out by a qualiﬁed tradesman familiar with the operation and maintenance of electric actuators.

Failure to observe these precautions could result in serious bodily injury or death, damage to the

equipment, warranty void, or operational difﬁculty.

Safety notices are presented in this manual in three forms:

cWARNING: Refers to personal safety. Alerts the user to potential danger. Failure to follow

warning notices could result in personal injury or death.

aCAUTION: Directs the user’s attention to general precautions that, if not followed, could result in

personal injury and/or equipment damage.

NOTE: Highlights information critical to the user’s understanding of the actuator’s installation and

operation.

1 Introduction

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

L120 Series actuators operate without modiﬁcation in any rising or non-rising stem application for

linear-action valves.

The actuators meet rigid safety requirements and are available in weatherproof, explosionproof, and

submersible conﬁgurations.

The actuators are compatible with a wide range of control options from stand-alone actuators with local

control stations to open standards-based DDC-100 networks with up to 250 actuators.

The actuators are designed with integral control packages including plug-in interconnect boards that

increase control functionality for stand-alone or networked actuators.

Torque overload protection is provided in both directions of travel.

2 Initial Inspection and

Storage Instructions

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

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cWARNING: Read this Installation and Maintenance Manual carefully and completely before

attempting to store the actuator. Be aware of the electrical hazards.

2.1 Product Identiﬁcation

The actuator nameplate is located on the back of the actuator opposite the limit switch controls

compartment. The nameplate contains the following information:

• Limitorque name

• Point of manufacture

• Actuator size

The motor nameplate is located on the motor. The nameplate contains the following information:

• ID number

• Run torque

• RPM

• Full load amps

• Insulation class

• Space heater size

• Service Factor

• Cycles

• Ambient temperature

• Start torque

• Order number

• Serial number

• Customer tagging

• Enclosure type

• Volts

• Locked rotor amps

• Duty

• Horsepower

• Phase

• Motor code

• Connection diagram

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

Figure 2.1 – L120-190 through 2000

2.2 Inspection and Recording

Upon receipt of the actuator, inspect the condition of the equipment and record nameplate information.

1. Carefully remove actuator from shipping carton or skid. Thoroughly examine the equipment for

any physical damage that may have occurred during shipment. If damaged, immediately report the

damage to the transport company.

2. Record the actuator nameplate information for future reference, i.e., ordering parts, obtaining

further information.

NOTE: The following are our recommended storage procedures to retain maximum product integrity

during short-term storage. Failure to comply with recommended procedures will void the warranty.

For longer-term storage, contact Limitorque for procedures and recommendations.

2.3 Short-Term Storage (less than 1 year)

Actuators are not weatherproof until properly installed on the valve or prepared for storage.

Store actuators in a clean, dry, protected warehouse away from excessive vibration and rapid tempera-

ture changes. If the actuators must be stored outside, they must be stored off the ground, high enough

to prevent them from being immersed in water or buried by snow.

Motor

Limit Switch

and Controls

Compartment

Housing

Declutch

Lever

Handwheel

Actuator Nameplate

(hidden)

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

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1. Position the actuator in storage with motor and switch compartment horizontal.

2. Connect the space heaters (if supplied) or place desiccant in the switch compartment.

3. Connect space heaters if actuator is to be stored in a damp place.

4. Replace all plastic caps or plugs with pipe plugs and ensure that all covers are tight.

5. If the actuator is mounted on a valve and the stem protrudes from the actuator, a suitable stem

cover must be provided.

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

NCU3520 192 520 192

BIC3586 217 586 217

UEC/Clamshell3586 217 586 217

L120-420

NCU31065 394 1065 394

BIC31130 418 1130 418

UEC/Clamshell31220 451 1220 451

L120-800 NCU3127014711170026292

L120-2000 NCU32500192513300212212

Note 1: Torque Only

Note 2: Torque and Thrust

Note 3: NCU = No Controls Actuator

BIC = Basic Integral Controls

UEC = Universal Electronic Controller

3 Actuator Weights

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