Emerson Fisher POSI-SEAL A81 Instruction Manual

Instruction Manual

D103319X012
May 2009

Lever-Lock Handlever Actuator

Fisherr Lever-Lock Handlever Actuators
for POSI-SEALt A81 Rotary Valves

Contents

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

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

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

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

Installation

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.

3..................................

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 Process Management sales
office before proceeding.

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).

W9585

Figure 1. Fisher Lever-Lock Handlever Actuator

Mounted on Valve

www.Fisher.com

Instruction Manual

Lever-Lock Handlever Actuator

Table 1. Specifications

Lever-Lock Handlever Actuator Sizes

See table 2

Valve Compatibility

Mounts on A81 valves per table 2

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.

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

HANDLEVER

ACTUATOR SIZE

I

II

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

100 4 19.1 3/4 14

150 6 25.4 1 17

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

Dimension and Approximate Weights

See figure 2 and table 4

May 2009

VALVE DISK

POSITION

0 Degrees

(Breakout Torque)

All Other Angles

(Dynamic Torque)

Table 3. Maximum Allowable Torques and Handlever Force Requirements

MAXIMUM TORQUE

Size I Size II

NSm InSLb NSm InSLb

119 1050 164 1450 423 95

47 420 70 620 178 40

HANDLEVER FORCE REQUIRED

N Lbf

2

Instruction Manual

May 2009

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.

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

Lever-Lock Handlever Actuator

(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.

W9583

“CLOSED”
MARK

“OPEN” MARK ON HANDLE

“OPEN” MARK

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

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