Instruction Manual
5BLACOH Industries
Step 1 Installation Position
Install the dampener inline as close to the pump discharge as possible to absorb the pulse at its source and before any downstream equipment
such as risers, valves, elbows, meters or lters. Dampener installation should be no more than ten pipe diameters from pump discharge. If using
a exible connector on the discharge side of the pump between the pump and system piping, the dampener should be installed at the pump
discharge manifold. The exible connector should be attached to the dampener’s tee and system piping (see FIGURE 1). Since pressure is
equal in all directions, the dampener can be installed in a vertical, horizontal or upside-down position. A vertical installation is recommended for
better drainage of the dampener. Limitations for horizontal and upside-down mounting include high specic gravity, high viscosity, settling of solid
material or possible air entrapment which could result in shortened bladder/bellows life and/or reduced dampening performance.
Installation for Pump Discharge Pulsation
Installation & Operation Instructions
DO NOT use plastic models as Surge Suppressors at quick closing valves. Use metal Surge Suppressors for water hammer or
quick closing valve applications. Consult factory for options.
ATEX models must be grounded (earthed) before operation.
Turn pump o and remove all pressure from system prior to dampener installation.
Remove all pressure from dampener AND pumping system before disassembly, removal or maintenance.
Use compressed air or clean dry Nitrogen to charge dampener. DO NOT USE OXYGEN.
DO NOT exceed maximum allowable working pressure (MAWP) specied on dampener serial tag. If missing, consult distributor or
factory for specications.
Always wear safety glasses and other appropriate safety equipment when installing, charging or repairing dampener.
Read and observe all safety warnings and instructions in this Manual before installation, operation or repair.
IMPORTANT! After maintenance or disassembly, use new fasteners and torque fasteners according to specication on
dampener tag. If missing, consult distributor or factory for specications.
Before performing a system pressure test, dampener must be charged with 80% of system test pressure to avoid possible damage to
bladder/bellows.
Pre-Charge Notes
Pre-charge pressure should be checked at least monthly as gas molecules will diuse through bladders/bellows, the speed of which depends
on the material, temperature and pressure. Checks must occur when no system pressure is present or inaccurate readings will be recorded.
If temperature is above 72°F (22°C) and/or pressure is over 300 psi (20.6 bar), checks should be performed more frequently. To prevent
pre-charge loss through the ll valve, always replace the ll valve cap after charging. A proper gas charge is the key to dampener
eectiveness and bladder/bellows life.
The following pre-charge notes are for all plastic dampener models; and, metal dampener models with a maximum pressure
rating up to 300 psi (20.6 bar). NOTE: Dampener can be pre-charged with compressed air up to a maximum pressure of 150 psi
(10.3 bar). If maximum pressure will exceed 150 psi (10.3 bar), dampener must be pre-charged with Nitrogen only. DO NOT USE
OXYGEN.
Pre-Charge Instructions for V Model Air Controls
The Chargeable V Model air control assembly has a machined stainless steel charging valve
and seal for rugged leak-proof operation in corrosive environments. To pre-charge V Model
dampeners, turn the Valve Opening Nut counterclockwise to open for charging. The valve on
these dampeners has no valve core to prevent the air charge from escaping. Because there
is no valve core, the pressure in the dampener will escape if the valve is not closed prior to
removing the charging hose. To close the valve, turn the Valve Opening Nut clockwise.
V Model Charging Valve
Cap
Valve Opening Nut
O-Ring