Mooney Flowgrid Slam Shut 1” valve Instruction Manual | 1
Copyright 2021 Baker Hughes Company. All rights reserved.
Table of Contents
Product Description .......................................................................................................................1
Materials of Construction .............................................................................................................. 2
Specifications .................................................................................................................................2
Valve Markings................................................................................................................................3
Nameplate Information ...................................................................................................................3
Principles of Operation ..................................................................................................................4
Hydrostatic Testing ........................................................................................................................4
Installation .......................................................................................................................................4
Setup ................................................................................................................................................5
Testing Slam Shut Shutoff ............................................................................................................. 5
Startup and Operation ....................................................................................................................6
Maintenance ...................................................................................................................................7
Piping Schematics........................................................................................................................10
Troubleshooting ...........................................................................................................................12
Scope
This manual provides the installation, operation, and maintenance
for the Mooney Slam Shut valve (Slam Shut only) and the
Mooney Flowgrid Slam Shut valve (Slam Shut and Flowgrid
combined). The Mooney Slam Shut or Mooney Flowgrid Slam
Shut can be supplied in three configurations; (1) over pressure
protection only, (2) under pressure protection only, and (3) over
and under pressure protection.
Instructions for the Flowgrid regulator and Pilot are found in
separate manuals.
Product Description
The Slam Shut valve is an easy to maintain automatic emergency
shutoff device. The Slam Shut is designed for use with a pressure
reducing regulator to provide secondary downstream pressure
protection.
The device is designed to shut off the flow of gas when the sense
or downstream pressure in the system either exceeds or drops
below the set point pressures. It can be used as a stand alone
device or integrated with the 1 inch Flowgrid regulator. The 1
inch Mooney Slam Shut valve consists of a valve body with a
bleed plate and cover mounted on top, and a Slam Shut actuator
assembly mounted on the bottom of the body. The 1 inch Mooney
Flowgrid Slam Shut also has a throttle plate, diaphragm, and
main spring.
