Flowserve Pharos NAMUR User Manual
Automax Valve Automation Systems
Installation, Operation and Maintenance Instructions
Flowserve Corporation 765 South 100 East Phone: 801 373 3028
Flow Control Division Provo, Utah 84606 Facsimile: 801 489 2228
Automation Business Unit www.flowserve.com E-mail: actuators@flowserve.com
Pharos NAMUR Visual Indicator
Introduction:
The Pharos NAMUR visual indicator is designed to work with Automax’ s SuperNova SNA and SXL Actuators
conforming to NAMUR standards for actuator pinion height and bolt hole location and size. It consists of a
dome with two 90 degree windows spaced 180 degrees apart and a rotor with alternating red and green
quadrants. The Rotor (fastened to actuator pinion) rotates under the dome (fastened to actuator accessory
mounting holes). Red quadrants indicate “closed” and green quadrants indicate “open”.
Installation
Your kit should include the following parts: (1) dome (long or short), (1) rotor, (1)M6 screw, and
(4)mounting screws. It may also include spacers.
1. Install rotor on actuator pinion using M6 screw and spacers if required (see below). The spacers
permit installation in either of two positions, 90 degrees apart.
Actuator Model
SNA/SXL 050, 063, 085, 100 20mm Pinion with 30 x 80 Bolt spacing Uses short dome and two molded spacers
SNA/SXL 115, 125, 150, 175, 200 30mm Pinion with 30 x 130 Bolt spacing Uses long dome and two molded spacers
2. Install dome over rotor and attach to actuator with (4)mounting screws. Large 50mm pinion heights
require two flat spacers under dome.
Maintenance:
The Pharos NAMUR visual indicator dome is not environmentally sealed to prevent dome pressurization in the
event of actuator pinion seal leakage. Dome pressurization might cause damage to the dome and/or injury to
bystanders.
Caution: Do not attempt to seal dome.
Because the dome is not environmentally sealed, periodic maintenance may be required to keep it clean.
Simply remove it and wash with soapy water as necessary.
Caution: Do not use solvents to clean dome:
some solvents may cause clouding or crazing.
LMR0017-0 (Auto-22) 6/01
© 2001, Flowserve Corporation, Provo, UT
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