Instruction Manual

8BLACOH Industries
Supporting Products
SENTRY™ Charging Kits
For SENTRY™ chargeable air control models, charging kits include
8’ (2.4 m) length of hose with a 1/4” (6mm) NPT male tting at one
end for connection to a regulator at the Nitrogen source, and a
charging tting and gauge at the opposite end.
SENTRY™ Bladder Kits
Bladder/bellows kits contain all parts necessary for replacement,
including hardware as needed (nuts, bolts, washers). PTFE bellows
kits include replacement O-rings; Stainless Steel metal bellows kits
include replacement gaskets.
SENTINEL™ Diaphragm Seals & Gauge Guards
ISOLATE AND PROTECT SYSTEM PROCESS INSTRUMENTATION
SENTINEL™ Diaphragm Seals, also referred to as Gauge Guards, employ a chemically resistant diaphragm
to e󰀨ectively isolate process uids from gauges and other process instrumentation. This durable diaphragm
allows SENTINEL™ to accurately transfer process pressure without direct contact with hazardous or
corrosive uids. SENTINEL™ Diaphragm Seals are easily installed, come in a variety of chemically resistant
materials, and work in both pressure and vacuum conditions.
SENTINEL™ Hybrid Combination Dampener & Back Pressure Valve
THE ALL IN ONE SMART CHOICE
The patented Hybrid Valve™ combines the steady ow control of a pulsation dampener and the regulation
of a back pressure valve to deliver the performance and functionality of both. A back pressure valve installed
in series with a dampener can negate the dampening e󰀨ect if the valve is opening and closing before the
dampener is able to capture a full pulse. This quick-opening e󰀨ect can also create too much gain within the
back pressure valve resulting in ine󰀩ciency and chatter. By combining the dampener and back pressure
valve into a single engineered unit, we’ve eliminated the most common issues with installation for a more
e󰀩cient, simplied system.
SENTRY™ Series Pulsation Dampeners
PULSATION DAMPENERS, SURGE SUPPRESSORS & INLET STABILIZERS
Positive displacement pumps create destructive pulsation and hydraulic shock due to the reciprocating
nature of their stroking action, potentially damaging piping and system components. SENTRY™ Pulsation
Dampeners and Surge Suppressors remove virtually all system shock, enhancing the performance and
reliability of uid ow in municipal, industrial, sanitary and chemical transfer applications.
SENTRY™ Inlet Stabilizers minimize pressure uctuations and acceleration head losses by preventing uid
column separation at the pump’s inlet. This improved ow to the pump’s inlet e󰀨ectively extends the service
life of all inlet system components.
SENTINEL™ Back Pressure and Pressure Relief Valves
PROTECT PROCESS SYSTEMS FROM FLUCTUATING PRESSURE OR BLOCKAGE
SENTINEL™ Back Pressure Valves enhance system performance by applying a continuous back pressure
to the pump, while also acting as an anti-siphon valve. Diaphragm back pressure valves apply positive
discharge pressure to a metering pump system to improve the consistency of dosage rates by shielding the
pump from uctuating downstream pressure. The diaphragm is held against the valve seat by an internal
spring. When the preset pressure is exceeded, the diaphragm is forced up and system uid ows through
the valve to the injection point.
SENTINEL™ Pressure Relief Valves protect pumping systems from over pressure damage caused by
defective equipment or blockage in the pump system line. Diaphragm pressure relief valves operate when
the pressure in the pumping system exceeds the preset pressure of the valve. The diaphragm is held
against the valve seat by an internal spring. When the preset pressure is exceeded, the diaphragm is forced
up and the system uid ows out of the relief port, back to the system uid tank or suction side of the pump.