Filter
Top Products
Types P341, P342, P389, and P631
D450058T012
Instruction Manual
MCK-0397
October 2007
R
www.emersonprocess.com/regulators/lp
Types P341 and P342 Manual Latches and
Types P389 and P631 Pneumatic Actuators
Introduction
!
WARNING
Failure to follow these instructions or to
properly install and maintain this equipment
could result in an explosion and/or re causing
property damage and personal injury or death.
Fisher
®
equipment must be installed,
operated, and maintained in accordance
with federal, state, and local codes and
Fisher instructions. The installation in most
States must also comply with NFPA No. 58
and ANSI K61.1 standards.
Only personnel trained in the proper
procedures, codes, standards, and
regulations of the LP-gas industry should
install and service this equipment.
Scope of Manual
This manual covers instructions for installing the Types P341
and P342 manual latches and Types P389 and P631 pneumatic
actuators for the Type C407-10 internal valve.
Type P341—Latch/remote release mechanism that permits
remote valve closure. The valve is opened manually. A built-
in fusible element will release at 212°F (100°C) and allow
the valve to close. Factory type number for the Type P341
installed is C407M10.
Type P342—Latch/bi-directional remote release mechanism
that permits remote valve closure from two directions. The
valve is opened manually. A built-in fusible element will release
at 212°F (100°C) and allow the valve to close. Factory type
number for the Type P342 installed is C407MB10.
Type P389—Pneumatic cylinder that allows remote
opening and closing of the valve.
Pressure source for Type P389: 60 psig (4,14 bar)
minimum to 250 psig (17,2 bar) maximum air, propane or NH
3
.
Figure 2. Type P389 Pneumatic Cylinder
P1109
P1133
Figure 3. Type P631 Pneumatic Actuator Installed in
Type C407-10 Internal Valve
Figure 1. Type P341 Latch/Remote Release Mechanism
P1140