American Valve 3700 Ball Valve Installation, Maintenance & Operating Manual

P.O. Box 35229
Greensboro, NC 27425
1-800-645-0101
fax: 1-800-876-0109
sales@americanvalve.com
www.americanvalve.com
This document contains information pertaining to American Valve models 3700 and 3700V. American Valve reserves the
right to change design features from time to time. Diagrams and descriptions in this guide may not exactly match your
particular valve. If you are unsure of or do not completely understand a particular procedure, please consult the factory.
1.
Installation, Maintenance & Operating Guide
***WARNING***
For your personal safety and protection, it is important that you
observe the following precautions before removing the valve
from service or disassembling the valve.
1. Never adjust exterior screws or bolts while the valve
is pressurized.
2. Keep hands and fingers out of valve.
3. It is possible that residual media or pressure may be
trapped inside the valve cavity. Ensure that the line and
valve are properly depressurized and be aware of any
residual harmful substances that may still be present.
4. To depressurize the valve:
a. Repeatedly open and close the valve to both drain the
line and relieve any residual pressure in the valve
cavity. Leave the valve in the open position.
b. Repeat this procedure once the valve is removed from
the line and standing in the vertical position.
5. Exercise caution when handling a valve that has been used
to control hazardous media. It is recommended that the
valve and line be thoroughly flushed prior to removal
and/or disassembly. Cycle the valve slowly while flushing
to clear the cavity.
***CAUTION***
3700 Series Ball Valves feature a double "o"-ring stem with
non-adjustable packing. Do not remove the stem retainer plate
while the valve is under pressure.
3700 Series Installation Maintenance Operation Manual
Nov-2013