Blacoh Sentry XPXB Instrukcja instalacji i obsługi - Strona 8
Przeglądaj online lub pobierz pdf Instrukcja instalacji i obsługi dla Urządzenia przemysłowe Blacoh Sentry XPXB. Blacoh Sentry XPXB 13 stron. Pressure dampeners
Drukuj stronęMaintenance, Inspection & Repair
CAUTION! Extreme pressure and/or possible hazardous chemicals are involved in dampener disassembly. Only properly trained persons
can perform dampener maintenance and repair.
Process liquid and Nitrogen may escape if bladders/bellows fail. Always wear safety glasses and other appropriate safety equipment
when disassembling dampener.
Depending on system conditions such as temperature and duty cycle, very little maintenance is required. Dampener's pre-charge should be
checked periodically, usually every 60 to 90 days or whenever pulsation and/or vibration become more pronounced.
XP, XPH and XPX dampener models have single cap or dual hex nut caps depending on the model, and are fitted with an elastomer
bladder or PTFE bellows. Refer to appropriate instructions below for the specific XP dampener model based on cap design and
fittings.
Disassembly
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).
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.
4. After all pressure has been removed from dampener, loosen safety wire bolt, untwist
safety wire to separate and remove from dampener. For dual cap models, remove safety
wire from both non-wetted and wetted caps.
5. Use a 3/4" (19 mm) deep socket to remove charging valve (Figure 1). Inspect charging
valve O-ring and replace if damaged. For models with optional Gauge Adapter Assembly
(Figure 2), use a suitable wrench to remove assembly fitting from dampener cap. Inspect
assembly O-rings and replace if needed.
6. Remove dampener cap(s) from dampener housing. Depending on model, dampener will
have a single cap or dual hex nut caps.
Single Cap Model. Thread two 3" 5/16–18 Grade 8 bolts into threaded bolt holes in cap.
Insert rod or heavy duty screwdriver with long shank between the two bolts and remove
cap by turning counterclockwise (Figure 3).
Dual Cap Model. Use appropriate tool to remove both hex nut caps by turning
counterclockwise.
7. Inspect dampener bladder/bellows and O-rings, and replace as needed. Consult factory
for replacement parts.
BLACOH Industries
Figure 1 Charging Valve
Cap
Valve Opening Nut
O-Ring
Figure 2 Gauge Adapter Assembly
Fitting
Charging
O-Rings
Valve
Figure 3 Single Cap
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