3
IOM-A-Deringer 20/30_2.5-4
2005
EDP#2916002
© 2020 Watts
Closing Shutoff Valves Prior to Maintenance
1. Slowly rotate shutoff valve #2 handle clockwise to the closed
position. Flag perpendicular to flow (A).
2 Slowly rotate shutoff valve #1 handle clockwise to the closed
position. Flag perpendicular to flow (A).
NOTICE
When yellow/orange position indicator flags are parallel with the flow of water
the shutoff valves are in the open position. Before doing any maintenance be
sure the yellow or orange flow indicators (flags) are perpendicular to the flow
of water valve body indicating shutoff valves are in the closed position (A).
FLOW
FLOW
Opening Test Cocks and Bleeding All Pressure
from the Line Before Maintenance
NOTE: valve is still under pressure. When opening test cocks,
water will be released. Take precautions to ensure discharging
water does not damage the surrounding area/equipment or
create an unsafe condition.
1.
DO NOT OPEN
Main test cock number 1, as it is still
subject to line pressure.
2. Using the Deringer
TM
test cock wrench or a small adjustable
wrench open (A) main test cock number 4.
(Test cock is open when wrench flats are parallel to water
flow through test cock)
3. Deringer 30 only: Using a #2 flathead screwdriver open
bypass test cock number 2. (Test cock is open when screw-
driver slot is parallel to water flow through test cock (B))
4. Using the Deringer test cock wrench or a small adjustable
wrench open main test cock number 3.
5. Deringer 30 only: Using a #2 flathead
screwdriver open bypass test cock
number 1.
6. Using the Deringer test cock
wrench or a small adjustable
wrench open main test
cock number 2.
FLOW
B
B
A
A
A
Closed
Open
Bypass Test Cock
Main Test Cock
Closed
Open
Closed
Open
