Fisher emerson tartarini TARTARINI
Standard Pilot Systems
Regulator Pilots
Introduction
Two Standard Pilot Systems are available:
Type BSL85/1 - Distribution applications
Composed of a manometric
pre-expansion box, a manometric
pre-expansion pilot box, and a pilot body.
Type BSL85/2 - Transmission applications
Composed of a manometric
pre-expansion box, a manometric
pre-expansion pilot box and two pilot
bodies. The BSL85/2 permits all types of
failure modes.
• The BMP pilots with standard
diaphragm are “FO” (Fail-to-Open)
• The BMP pilots with double diaphragm
are “No Fail”
• The bellows are flattened in the case
of overpressure but with no leak to the
outside.
Different connection types permit these
pilots to be used on a wide range of
Emerson pilot-operated regulators:
Type BSL85/1- Distribution applications:
Cronos-FR, FL-FR, EZR
Type BSL85/2 - Transmission applications:
EZH, EZHSO, EZHFO, FL-FR, EZR
Two functional types of pressure
reduction are available, Hard Trim or
Boot Trim Pilot System:
• Pressure reduction with actuator and plug:
pilot system loaded by modulated
pressure
• Pressure reduction with diaphragm-plug:
pilot system unloaded by modulated
pressure
The setpoint range can be modifed by
simply changing the BMP manometric
box or spring.
End Connection Style
1/4" NPT female threaded
Pressure Ratings
Maximum Inlet Pressure: 100 bar
Allowable Inlet Pressure: 85 bar
Outlet Pressure Range: 0.01 to 60 bar
Temperature Capabilities
Working: -20° to 60°C