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BLACOH Industries
XP High Pressure models are available with optional Gauge Adapter Assembly, either factory installed or purchased separately (Figure 2). When
purchased separately, Gauge Adapter Assembly includes charging valve. Follow instructions below to install optional Gauge Adapter Assembly
when purchased separately.
Gauge Adapter Assembly Installation
Pump must be turned off and system pressure must be zero prior to disassembly.
1. Close isolation valve if installed or remove dampener from pumping system.
2.
If the dampener is fitted with eye bolts for lifting, rotate eye bolt nuts up bolt threads
slightly (away from cap). Turn bolts counterclockwise to completely remove from cap.
3. Remove all pressure from dampener before disassembly. Point dampener charging valve
in a safe direction. To verify dampener is not pressurized, remove charging valve cap
and use a suitable wrench to slowly open charging valve by turning valve opening nut
counterclockwise (Figure 1).
4. After all pressure has been removed from dampener, loosen safety wire bolt, untwist
safety wire to separate and remove from dampener.
5. Use a 3/4” (19 mm) deep socket to remove charging valve from dampener cap and
discard.
6.
Ensure gauge adapter fitting O-rings are seated in O-ring grooves (Figure 2). Spray
O-rings with a solution of soap and water.
7.
Install complete assembly into dampener charging valve port. Tighten until flush (metal to
metal) using a suitable wrench. While tightening, ensure fitting O-rings remain seated in
O-ring grooves.
8. Refer to
Charging Instructions
and
Pressure Seal Check
sections
above to properly
charge dampener and check pressure seal before proceeding to next step.
Nitrogen becomes extremely cold and can burn bare skin when released
under pressure. Also, ice may form and clog the charging valve which will
prevent complete pressure charge release. Wait at least one minute after all
pressure has been released before continuing with disassembly.
Details regarding warranty and return policy are available on Blacoh’s website at
www.Blacoh.com
Manufacturer’s Limited Warranty & Return Policy
Cap
Valve Opening Nut
O-Ring
Figure 1 Charging Valve
Fitting
Charging
Valve
O-Rings
Figure 2 Gauge Adapter Assembly
9.
Reinstall safety wire and bolts:
Loop safety wire through wire port in charging valve, twist loose wires together tightly and pull taut from charging valve clockwise around
assembly fitting to wire port in housing lip. Feed one loose wire end through housing lip port and twist remaining wire lengths together tightly.
Pull twisted wire taut and wrap clockwise once around safety wire bolt in cap.
For single cap models fitted with PTFE bellows where charging valve is installed on non-wetted housing, pull twisted safety wire taut from
charging valve directly to safety wire bolt in housing.
For dual cap models with a second safety wire bolt in housing lip in lieu of a port, pull twisted wire taut from charging valve and wrap
clockwise once around safety wire bolt in cap; pull remaining length taut and wrap once around second safety wire bolt in housing lip.
Ensure no slack in full length of safety wire. Tighten safety wire bolt(s) to secure. Bend wire ends back and down so sharp ends do not
protrude. Reinstall cap eye bolts (dual cap models only).
