Fisher Instruction Manual: Fisher Lever-Lock Handlever Actuators for POSI-SEAL A81 Rotary Valves Manuals & Guides

Instruction Manual

D103319X012

Lever-Lock Handlever Actuator

Fisher™ Lever‐Lock Handlever Actuators for

™

POSI‐SEAL

A81 Rotary Valves

July 2017

Contents

Introduction 1...................................

Scope of Manual 1.............................

Description 1.................................

Specifications 2...............................

Installation 2..................................

Ordering Replacements 5........................

Introduction

Scope of Manual

This instruction manual includes installation,
maintenance, and parts information for the Fisher
Lever‐Lock handlever actuator (figure 1). Refer to
separate instruction manuals for information covering
the control valves.

Do not install, operate, or maintain a Lever‐Lock
actuator without being fully trained and qualified in
valve, actuator, and accessory installation, operation,
and maintenance. To avoid personal injury or property

damage, it is important to carefully read, understand,
and follow all the contents of this manual, including all
safety cautions and warnings. If you have any

questions about these instructions, contact your

Emerson sales office

proceeding.

or Local Business Partner before

Figure 1. Fisher Lever‐Lock Handlever Actuator
Mounted on Valve

W9585

Description

The Lever‐Lock handlever is used for reliable manual operation of DN 50 through 150 (NPS 2 through 6) Fisher A81
high‐performance butterfly valves. Spring‐loading secures the handlever in the notched quadrant plate (figure 2),
allowing the valve disk to be locked in intermediate positions. Additionally, the handlever can be locked with a
user‐supplied padlock with 4.8 to 5.2 mm (3/16 to 13/64 inch) shackle to prevent accidental or unauthorized
adjustment (see figures 3 and 4).

www.Fisher.com

Lever-Lock Handlever Actuator

July 2017

Table 1. Specifications

Instruction Manual

D103319X012

Lever‐Lock Handlever Actuator Sizes

See table 2

Valve Compatibility

Mounts on A81 valves per table 2

Handlever Length

Maximum of 432 mm (17 inches). See figure 2 and
table 4

Construction Materials

Handle, quadrant plate, lever, and mounting bracket
are all steel materials. Spring, set screws, and
fasteners are stainless steel

Maximum torque Output

See table 3

1. The pressure/temperature limits in this manual, and any applicable code or standard limitation, should not be exceeded.

Dimension and Approximate Weights

See figure 2 and table 4

Table 2. Fisher A81 Valve / Lever‐Lock Handlever Compatibility

HANDLEVER

ACTUATOR SIZE

I

II

100 4 19.1 3/4 14
150 6 25.4 1 17

VALVE SIZE SHAFT SIZE SQUARE SIZE

DN NPS mm Inches mm

50 2 12.7 1/2 9
80 3 15.9 5/8 11

Table 3. Maximum Allowable Torques and Handlever Force Requirements

VALVE DISK

POSITION

0 Degrees

(Breakout Torque)

All Other Angles

(Dynamic Torque)

MAXIMUM TORQUE

Size I Size II

NSm InSLb NSm InSLb N Lbf

119 1050 164 1450 423 95

47 420 70 620 178 40

HANDLEVER FORCE REQUIRED

Installation

The Lever‐Lock handlever actuator is normally shipped mounted on the valve at the factory. If the handlever was
ordered separately, install the handlever on the valve by following the instructions in this section.

WARNING

Sudden or unexpected movement of the handle can result from unbalanced flow forces. Firmly grip the handlever and
ensure stable footing when operating the handlever to avoid personal injury or property damage.

2

Instruction Manual

D103319X012

Lever-Lock Handlever Actuator

July 2017

Installing the Handlever

Orientation

Mount the Lever‐Lock bracket assembly, less the handle, to the valve body. The handle is perpendicular to the pipeline
when the valve is in the shut position. Rotation of the lever/valve shaft in the counter‐clockwise direction will open the
valve. Attach the Lever‐Lock Handlever actuator to the valve in this orientation but do not fully tighten (torque) the
bracket to valve bolting until after the zeroing process below.

Handle assembly

Place the handle and lever assembly on the valve shaft with the valve closed. Squeeze the lever to compress the spring,
position the lever over the notch indicating the closed position, and slide the square cutout portion of the handle over
the valve shaft as far as it will go. Maintain at least a 0.8 mm (1/32 inch) gap between the handle and the plate, so the
handle doesn't rub on the plate during operation. Torque the two hex socket set screws against the shaft to 2.7 NSm
(24 inSlbf).

Zeroing

After tightening the set screws, check the orientation of the disk relative to the body seal retainer. Place a straight
edge on the seal retainer which spans the valve opening. Visually check to ensure there is equal space (within 0.8 mm
[1/32 inch]) between this straight edge and the top and bottom of the disk to ensure the valve is fully engaged in the
seal. To adjust this position, rotate the bracket within the clearance of the mounting bolt holes between the valve
body and bracket. Once there is equal distance between the disk and the straight edge, tighten the mounting bolts to
115 NSm (88 ftSlbf). After tightening, recheck disk position at shutoff to ensure nothing shifted during the tightening
process.

Figure 2. Fisher Lever‐Lock Handlever Actuator for A81 Valve (Open/Closed Marks)

“CLOSED”
MARK

“OPEN” MARK ON HANDLE

W9583

“OPEN” MARK

3