Flowgrid Slam Shut
2”. 3” and 4” Valves
Installation/Operation/Maintenance
Manual
MOONEY
®
FLOWGRID
®
SLAM SHUT
™
Table of Contents
Product Description ..............................................................1
Materials of Construction ......................................................2
Specifications .......................................................................2
Valve Markings .....................................................................2
Nameplate Information .........................................................3
Principles of Operation .........................................................3
Hydrostatic Testing ...............................................................5
Installation ........................................................................ 5-6
Setup .................................................................................11
Testing ...............................................................................12
Startup and Operation ........................................................12
Maintenance ......................................................................12
Troubleshooting ..................................................................18
Product Support ................................................................20
Warranty .............................................................................20
Scope
This manual provides the installation, operation, and mainte-
nance for the Mooney Slam Shut a stand alone valve (SSV)
and the Flowgrid Regulator and Slam Shut Valve a regulator
with integrated SSV.
Instructions for the Flowgrid regulator and Pilot are found in
separate IOM manuals.
Product Description
The slam shut valve is an easy to maintain automatic shutoff
device. The device is designed to shut off the flow of gas when
the sensed pressure in the system either exceeds or drops
below the set point. It can be used as a stand alone device or
integrated into the 2” through 4” Flowgrid regulators.
The Mooney Slam Shut consists of a Flowgrid body, a shut
off valve assembly with a cover and a slam shut device and a
controller.
The Series 50 and 50D controller mounts on the side of the
2” through 4” shut off valves.
T he Flowgrid Regulator and Shut Off Valve consists of a
Flowgrid regulator with a shut off valve inserted between the
Flowgrid body and the regulator with a side mounted Series
50 or 50D Controller.
The controller can be supplied in three different configurations.
1) The single function controller (Figure 1) provides over or
under pressure protection.
2) The Series 50D dual function controller (Figure 2) provides
over and under pressure protection with both functions
connection to a common sense port.
3) The Series 50D controller with dual sense ports provides
over or under pressure protection at two different locations.
Each function is connected to it own sense port. This
allows the monitoring of two independent locations for
over pressure or under pressure conditions, each with its
own set point.
Pictured above left:
Figure 1
- 2” Flowgrid regulator with
an integrated Shut Off Valve and a Series 50 single function
controller providing under or over pressure protection. Above
right:
Figure 2
- 2” Flowgrid regulator with an integrated Shut
Off Valve and a Series 50D dual function controller providing
under and over pressure protection.
