Hayward Flow Control
www.haywardflowcontrol.com
1-888-429-4635
PBVRPVIOM Rev A 9/2015
Page 4 of 20
SAFETY WARNINGS
PLEASE READ THE FOLLOWING INFORMATION PRIOR TO INSTALLING AND USING
HAYWARD SERIES PBV BACK PRESSURE VALVE AND SERIES RPV PRESSURE
RELIEF VALVES. FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN
PRODUCT DAMAGE, PROPERTY DAMAGE, PERSONAL INJURY, OR EVEN DEATH.
1.
Hayward Flow Control (Hayward), a division of Hayward Industries, guarantees its
products against defective material and workmanship only. Hayward assumes no
responsibility for property damage or personal injury resulting from improper
installation, misapplication, or abuse of any product.
2.
Hayward assumes no responsibility for property damage or personal injury resulting
from chemical incompatibility between its products and the process fluids to which they
are exposed. Determining whether a particular PVC, CPVC, PP or PVDF product is
suitable for an application is the responsibility of the user. Chemical compatibility
charts provided in Hayward literature are based on ambient temperatures of 70°F and
are for reference only.
3.
Hayward products are designed for use with non-compressible liquids.
4.
The maximum recommended fluid velocity through any Hayward product is eight feet
per second (8 ft/s). Higher fluid velocity can result in damage due to the water hammer
effect.
5.
Piping systems must be designed and supported to prevent excess mechanical loading
on Hayward products due to system misalignment, weight, shock, vibration, and the
effects of thermal expansion and contraction.
6.
The effect of temperature on plastic piping systems must be considered when the
systems are initially designed. The pressure rating of plastic systems must be reduced
with increasing temperature. Maximum operating pressure is dependent upon material
selection as well as operating temperature. Before installing any Hayward product,
consult Hayward product literature for pressure vs. temperature curves to determine
any operating pressure or temperature limitations.
WARNING
Hayward PVC and CPVC products should NEVER be used or tested
with compressible fluids such as compressed air or nitrogen. Use of
PVC and CPVC products in compressible fluid applications
may
result in product damage, property damage, personal injury, or even
death.
WARNING
The Series PBV and RPV is intended for use in liquid service only.
Do not attempt to use this valve for controlling air or gases. Use of
this product in air or gas service may result in product damage,
property damage, personal injury, or even death.
