Flowserve Valtek Position Pac - Manual

29-1 Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611 Valtek No. 62152
GENERAL INFORMATION
The following instructions are designed to assist with
installing, calibrating and troubleshooting the Valtek
®
Position Pac™ valve position indicator. Product users
and maintenance personnel should thoroughly review
this bulletin in conjunction with the maintenance bulletin
for the appropriate valve body and actuator being used.
To avoid possible injury to personnel or damage
to valve parts, WARNING and CAUTION notes
must be strictly adhered to. Modifying this prod-
uct, substituting non-factory or inferior parts, or
using maintenance procedures other than out-
lined could drastically affect performance, be
hazardous to personnel and equipment, and may
void existing warranties.
OPERATION
Position Pac is a ‘package’ unit containing a potenti-
ometer and transmitter, two or four limit switches, or a
combination of a transmitter and two limit switches.
The position transmitter utilizes a potentiometer to
measure the valve’s position and a transmitter circuit
that sends a 4 to 20 mA electrical signal to a remote
monitoring device. Position Pac will continuously trans-
mit the position of a control valve as it modulates
between the open and closed positions.
The limit switches in Position Pac can be independently
set to indicate open, closed or any intermediate valve
position.
Valtek Position Pac
Position Pac’s sealed construction provides protection
from the entry of water, dust and oil as defined by the
National Electrical Manufacturers Association (NEMA)
1, 3, 3R, 4, 12 and 13. Position Pac is also explosion-
proof, providing protection from flammable hydrocarbon
atmospheres, metal dust, coal dust, and grain dust. It is
UL and CSA listed for Class I, Division 1, Groups B, C, D;
Class II, Division 1, Groups E, F, G (See Table I). All
electrical wiring should be installed per NEC articles
501-4 and 501-5.
WARNING: Keep hands, hair, clothing, etc. away
from moving parts when operating the valve. Fail-
ure to do so can cause serious injury.
INSTALLATION INSTRUCTIONS
The following instructions are designed to assist in the
field installation of Position Pac units.
Valtek Linear Actuators
To install Position Pac on Valtek linear actuators, refer
to Figures 1 and 2, and proceed as follows:
1. Remove the name plate from the yoke leg opposite
from the stroke indicator plate.
2. Using the two tapped holes, attach the Position Pac
mounting bracket to the yoke leg using two mounting
bolts. When facing this yoke leg, the bracket will jog
in towards the valve center and protrude to the left.
3. Remove the nut from the stem clamp bolting. Place
the tripper bracket on the bolt so the ‘S’ shape ex-
tends down. Replace the nut and tighten it firmly.
Flowserve Corporation, Valtek Control Products, Tel. USA 801 489 8611