6
F
C
Dual Seal Certification
Meets ANSI/ISA-12.27.01-2003 dual seal certification
Annunciation Check Valve
(a dual seal feature)
Visually indicates a primary seal failure.
Unlike open holes found on competitive models the Robinson check
valve prevents moisture and debris from contaminating internal
components.
Certification Areas
Class 1 - Flammable Gas or Vapor, Division 1 - Intermittent Hazard
Gas Groups B, C, D
Ensures safety for Hydrogen, Ethylene and Propane in environment
IEC
Robinson Pressure Switch has been tested to international standards.
External Adjustment
Simply rotate knurled adjustment collar to increase or decrease pres-
sure setting.
Security/Lockout
To prevent tampering or unauthorized use of the Pressure Switch a Car
Seal lockout devise can be installed on three components 1) electrical
enclosure cover 2) calibration screw/cap, and 3) set point adjustment
collar.
Process Connection NACE
(for sour service)
Process Connection Materials are chosen in accordance to NACE
MR0175-2003
Piston Orientation
Eliminate the need for pulsation dampening
Field Service
Microswitch replaceable, no need to disassemble Pressure Switch.
Diaphragm Servicing
Diaphragm can be replaced without disassembling Pressure Switch ,
Pin socket available for Diaphragm Nut, contact Robinson Pressure
Controls.
Low Ownership Costs
Maintenance kits are available to renew Pressure Switch for service.
8
Features
7
Recommend Service
7.1
3 month interval
- Verify operation by pressure testing, most importantly prior to cold
weather season.
7.2
Ensure Annunciation port (breathe cap/check valve) is free from obstruction.
7.3
Any amount of leakage no matter how slight indicates a primary seal failure and the
switch will need to be removed from service and rebuilt.
A minimum of 1.5 psi is required for the Check Valve to Annunciate
ZIMCO INSTRUMENTATION INC.
11141 15 Street NE, Calgary, AB, T3K 0Z5, Canada
Phone:
403-253-8320
Email:
Website:
www.zimco.ca
