Mattco Pulsation Dampener OMM PDF
Mattco Pulsation Dampener OMM PDF
Mattco Pulsation Dampener OMM PDF
ITEM NO.
1 BLADDER 2 CHARGING VALVE (*changed from 15-528 11/1/2004) 3 VALVE GUARD 4 PRESSURE GAUGE 5 UPPER CAPSCREW 6 UPPER CLOSURE STUD 7 UPPER CLOSURE PLATE 8 BODY 9 LOWER PLATE 10 LOWER CAPSCREW 11 API RING 12 LOWER PLATE SEAL 13 LOWER PLATE STUD 14 STABILIZER
N/A 15 STABILIZER PLATE N/A STABILIZER 16 BOLT&WASHER CHARGING HOSE ASSEMBLY DRY WEIGHT CONNECTION N/A 15-529 1000 4-3000
N/A 16-021 N/A 16-022 N/A 15-529 1000 4-5000 15-529 2100 4-3000
IMPORTANT!
Read all instructions carefully before proceeding with the installation of this equipment. Do not precharge the dampener until the unit has been securely mounted in place.
I.
INSTALLATION OF THE PULSATION DAMPENER A. Location: The dampener should be installed as close as possible to the pump for maximum effectiveness. Typically, the dampener is vertically mounted atop a discharge manifold strainer cross. B. Mounting: The fluid connection faces should be thoroughly cleaned and the API ring grooves checked for uniform sealing surfaces. A new API ring should be cleaned, checked and coated with a light coat of grease before being installed in the discharge cross ring groove. (R-37 for 3,000 PSI Units) (R-39 for 5,000 PSI Units) (BX155 for 7,500 PSI Units) The dampener should be lowered in place and the securing nuts tightened to the recommended torque values. 3,000 PSI Unit (1-1/8 Dia. Stud) 5,000 PSI Unit (1-1/4 Dia Stud) 7,500 PSI Unit (1-1/8 Dia Stud ) 850 ft. lbs. 1,150 ft. lbs. 850 ft. lbs.
II.
PRE-CHARGING A. Gas Pressure: The bladder precharge pressure should be maintained within the range of 40% to 60% of the normal operating fluid pressure. . B. Gas Volume: The number of nitrogen cylinders required to precharge the bladder will depend on dampener capacity and pre-charge pressure. The chart below is based on the use of STD. 224 cubic feet, 2200 PSI dry nitrogen cylinders. Caution: Use nitrogen only for precharging. Under no circumstances should any other gas be used.
20 GALLON Pre-charge No. Cylinders Pressure required 0-700 PSI (1) 700-1300 PSI (2) 1300-1600 PSI (3) * For higher pre-charge pressures a gas booster pump (i.e. Haskell International) should be used. C. Gas Transfer: The fluid side of the dampener should not be pressurized during the pre-charge operation. Check the pressure gauge atop the dampener first to determine what pressure, if any, is in the bladder. Remove the (4) 5/8 capscrews securing the valve guard to the upper closure. Check to make certain the charging valve is closed (fully clockwise) before removing the chained dust cover plug. Attach the charging hose assembly to the dampener and supply cylinder. The gauge end of the hose assembly should be near the supply cylinder. Open the supply cylinder valve and check hose gauge to determine the pressure available for charging. Slowly open the nitrogen bottle valve and check hose gauge to determine the pressure available for charging. Slowly open the dampener charging valve to allow the gas to enter the bladder cavity. When the gauges read the same, both valves should be closed. Another cylinder can be moved into place or the hose assembly removed if the desired pressure has been reached. Replace the dust cover plug and valve guard. Check the pressure gauge weekly for precharge leakage or whenever the flow line pressure gauge shows an increase in pressure variations.
10 GALLON Pre-charge No. cylinders Pressure required 1-1100 PSI (1) 1100-1600 PSI (2)