155L Position Indicator
The Model 155L Visual Indicator is a device that enables the user to determine the extent of opening of a control valve. It consists of an adaptor threaded into the valve bonnet, a rod threaded into the main valve stem, a sealed Pyrex sight glass, and a protective aluminum housing. The indicator rod moves as the valve opens and closes. The 155L may be installed on virtually any OCV control valve, and can be done so without any disassembly of the valve itself. Since the assembly is not sealed from the diaphragm chamber of the main valve, it provides a convenient point for bleeding air via the 1/8” NPT port located at the top of the sight glass.
WHERE USED – The 155L is the standard visual indicator on fuel service valves. Optional on virtually any control valve not already employing a limit switch or position transmitter.
MODEL 155L MATRIX
MAX WORKING PRESSURE: 300 PSI
Indicator Rod: Monel
Adapter: Stainless Steel
Sight Glass: Pyrex
Sight Glass Seals: Buna-N
The Model 155L is shown on OCV Valve Schematic as:
|EXAMPLE: Shown here on a Model 120-6 Rate of Flow / Check Valve.|