Pilgrim Pressure Switches B-SERIES - Manual (Page 11)

11
OPTIONAL FEATURES AND ACCESSORIES
Standard features:
• 3000 psi burst pressure unre-
strained at room temperature
• long service life
• all welded – no O-rings
• built-in over range protection
• superior corrosion resistant
materials
• interchangeable with current
Ashcroft pressure switch actuators
• 15 psi to 600 psi ranges available
XG9 – FIRE-SAFE WELDED
ACTUATOR
Standard features:
• setpoint indicating scale
• adjusting nut stop
• secondary chamber with vent
• optional pilot light for FM
requirements
XG6 – U.L. LISTED LIMIT
CONROL SWITCH
Standard features:
• 316 stainless steel welded
diaphragm
• setpoint indicating scale
• adjusting nut stop
XG8 – U.L. LISTED STEAM LIMIT
CONTROL SWITCH
DIAPHRAGM SEALS
The Ashcroft pressure switch actuator is
designed to satisfy most medium range
pressure switch applications. It has only
two wetted parts; pressure port and
diaphragm. No O-rings are required
because all joints are welded.
The Ashcroft medium pressure gas and
oil limit control switch is designed for
use with air, LP gas, natural gas, #1
and #2 fuel oil and #6 oil preheated to
240°F. This limit control is an adjustable
pressure operated switch with a sec-
ondary chamber to prevent fuel from
entering the switch enclosure in the
unlikely event that the diaphragm devel-
ops a leak. The control shuts down a
fuel pump in high or low pressure
conditions.
The Ashcroft steam limit control switch
is designed for use on boilers equipped
with electrically operated burners. The
limit control is an adjustable pressure
operated switch set to stop burner
operation when the recommended safe
boiler working pressure is exceeded.
Any of the complete line of Ashcroft
diaphragm seals may be used with most
Ashcroft switches. See Bulletin DS-1.