2
BLACOH Industries
WARNINGS
Danger of serious injury or death could occur if these warnings are ignored.
CAUTIONS
Equipment damage, injury or death could occur if these cautions are not observed.
NOTES
Special instructions for safe and satisfactory installation, operation and maintenance.
SAFETY Warnings
Dampeners should only be installed, operated and repaired by experienced and trained professional mechanics. Read and observe all
instructions and safety warnings in this Manual before installing, operating or repairing dampeners.
Safety Symbols
The following symbols indicate cautions, warnings and notes that must be observed for safe and satisfactory installation, operation and
maintenance of dampener.
GENERAL Information
For safe and satisfactory operation of dampener read all safety warnings, caution statements and this complete Manual before installation,
startup, operation or maintenance.
▪
Observe all safety symbols in installation and operation instructions.
▪ The internal dampener pressure will equal the maximum fluid
pressure of the system in which it is installed.
▪
DO NOT
exceed maximum allowable working pressure (MAWP)
specified on dampener serial tag or marked on dampener. If
missing,
DO NOT
use dampener without consulting distributor or
factory for maximum pressure rating.
▪ Always make sure safety shutoff valves, regulators, pressure relief
valves, gauges, etc. are working properly before starting system or
assembly.
▪
Verify dampener model received against purchase order and
shipper.
▪
Before starting a system or assembly make certain the discharge
point of the piping system is clear and safe, and all persons have
been warned to stand clear.
▪
DO NOT
put your face or body near dampener when the system or
assembly is operating or dampener is pressurized.
▪
DO NOT
operate a dampener that is leaking, damaged, corroded or
otherwise unable to contain internal fluid, air or gas pressure.
▪
DO NOT
pump incompatible fluids through dampener. Consult
distributor or factory if you are not sure of the compatibility of
system fluids with dampener materials.
▪
Dampeners are designed to operate with compressed air or clean
dry Nitrogen
only
. Other compressed gases have not been tested
and may be unsafe to use.
DO NOT USE OXYGEN�
▪ Always shut off air supply, remove internal dampener pressure
and shut dampener isolation valve before performing dampener
maintenance or repair.
▪
Remove all pressure from dampener AND pumping system before
disassembly, removal or maintenance.
▪
Static spark can cause an explosion resulting in severe
injury or death� Ground dampeners and pumping system
when pumping flammable fluids or operating in flammable
environments�
General Safety
General Safety
DO NOT
misuse dampener, including but not limited to over-
pressurization, modification of parts, using incompatible chemicals, or
operating with worn or damaged parts.
DO NOT
use any gases other
than compressed air or clean dry Nitrogen to charge dampener.
DO
NOT USE OXYGEN
. Any misuse could result in serious bodily injury,
death, fire, explosion or property damage.
Over-Pressurization
Never exceed the maximum pressure rating for the dampener
model being used. Maximum allowable working pressure (MAWP) is
specified on dampener serial tag or marked on dampener. Maximum
allowable working pressure (MAWP) is rated at 70°F (21°C).
Temperature Limits
DO NOT
exceed the operating temperature limits for the body and/
or elastomer materials being used. Excessive temperature will result
in dampener failure. For temperature limits, refer to the “Temperature
Limits” section of this Manual. Temperature limits are stated at zero
psi/bar.
Installation and Startup Hazards
Install dampener before charging or pressurizing.
DO NOT
start
system or assembly without first charging or pressurizing dampener.
Failure to charge may result in damage to the bladder or bellows.
Temperature & Pressure Hazard
Temperature and pressure reduce the strength and chemical
resistance of plastic, metal, elastomers and PTFE.
Charging / Pressurization
Charge or pressurize dampener with compressed air or clean dry
Nitrogen only.
DO NOT USE OXYGEN�
Dampener Bladder/Bellows Failure
Dampeners utilize a bladder or bellows to separate system fluid
from the air supply or gas charge. When failure occurs, system
fluid may be expelled from the air valve. Always perform preventive
maintenance and replace bladder/bellows before excessive wear
occurs. O-rings for PTFE bellows and gaskets for Stainless Steel
metal bellows cannot be reused.
Maintenance Hazards
Never overtighten fasteners. This may cause leakage of system
fluid and damage to dampener body. Bolts should not be reused as
re-torquing reduces bolt strength.
After dampener maintenance or
disassembly, use new fasteners and torque fasteners according
to specification on dampener tag. If missing, consult distributor
or factory for torque specifications.
Equipment Misuse Hazard
