DS05 Dial Set Pressure Regulating Valves - Wolseley Express

More documents

Recommendations

Info

DS05 DIAL SET PRESSURE REGULATING VALVEPressureRegulatorValveSizeReducedPressureFalloff(psi)FlowCapacity(U.S. gpm)Table 1. Water Capacities.Pressure Differential Between Inlet and Outlet25 psi 50 psi 75 psi 100 psi or moreFlowCapacity Velocity(U.S. gpm) (ft/sec) aFlowCapacity Velocity(U.S. gpm) (ft/sec) aFlowCapacity(U.S. gpm)VelocityVelocity(ft/sec) a(ft/sec) a1/2 inch 6 7.0 7.3 8.0 8.3 9.0 9.4 10.0 10.410 10.0 10.4 11.0 11.5 12.0 12.5 13.0 13.515 13.0 13.5 15.0 15.6 16.0 16.7 17.0 17.720 15.5 16.0 18.0 19.5 19.0 21.0 20.0 22.03/4 inch 6 9.0 5.4 10.0 6.0 11.0 6.5 12.0 7.110 15.0 8.9 16.0 9.5 17.0 10.0 18.0 10.715 20.0 11.9 22.0 13.7 23.0 13.7 24.0 14.320 23.0 13.9 26.0 17.6 27.0 16.7 28.0 17.31 inch 6 11.5 4.2 13.0 4.7 14.5 5.3 16.0 5.810 20.0 7.2 21.5 7.8 23.0 8.3 24.5 8.915 28.0 10.7 30.0 10.9 33.0 12.0 35.0 12.720 32.0 14.0 37.0 13.5 40.0 15.5 41.0 15.01-1/4 inch 6 13.5 2.9 16.0 3.4 20.0 4.3 22.0 4.710 22.0 4.7 29.0 6.2 34.0 7.3 38.0 8.115 37.0 7.9 56.0 12.0 62.5 13.4 73.0 15.620 55.0 11.8 78.0 16.7 87.0 18.6 101.0 21.6a Velocity in feet per second is based on schedule 40 pipe size. Recommended pressure falloff for general use is approximately104 kPa (15 psi). Recommended velocities for the flow of water: Residential and general use, 5 to 10 ft/sec; industrial use, 7 to15 ft/sec; boiler feed, 7 to 15 ft/sec.Procedure Flush the system clear of sediment or debris. Close the supply valve and downstream isolatingvalve (if one is installed). Install the DS05 with the arrow on the bodypointing in the direction of water flow. (The DS05can be mounted in any position.)The DS05 can be installed directly onto the pipe by usingthe female NPT threads on each end. If space limitationsrestrict turning the DS05, install single- or double-unions.NOTE:Heat from soldering can damage internal partsof the DS05. Always solder the tailpiecesseparately from the DS05. Open the supply valve slowly and check forleakage and proper operation of the DS05.Changing the Downstream Pressure(See Fig. 1)Remove the dust cap from the DS05. The DS05 isfactory set to 60 psi.To adjust the outlet pressure to a desired setting: Loosen the locking screw by turning counterclockwise(Do not remove this screw.) Turn the adjusting knob counterclockwise toreduce pressure or clockwise to increasepressure. Lock the setting by turning the locking screw clockwise. Replace the dust cap over the dial.Replacing the Cartridge (See Fig. 2)The working parts of the DS05, including diaphragm,valve seat, strainer, and disk are all contained in areplaceable cartridge. To replace the cartridge: Shut off the supply valve and open a downstreamfaucet to relieve the system pressure. Loosen the setpoint locking screw by turningcounterclockwise (Do not remove this screw).CAUTIONTo prevent injury and/or equipment damage,loosen locknut and turn adjusting screwcounterclockwise to remove springtension. Loosen locknut and turn adjusting screw counterclockwiseto remove spring tension. Remove the bonnet and washer using the MT06AService Wrench. Remove the cartridge using two screwdrivers aslevers.62-3042 2
DS05 DIAL SET PRESSURE REGULATING VALVELOOSEN LOCKINGSCREW ONE TURN1LOOSEN THE SETPOINT DIAL LOCKING SCREW.ADJUST SETPOINT AT THE DESIRED VALUE BY ACTUATING SELECTOR;CLOSE VALVE (2); OPEN VALVE (1) SLOWLY; OPEN VALVE (2) SLOWLY.2UNSTRESS THEPRESSURE SPRINGBY TURNING COUNTER-CLOCKWISE .6060INLET PRESSURE (MAXIMUM): 400 PSIREDUCED PRESSURE RANGE:15 TO 150 PSI 1/2 IN. –1 IN. SIZE15 TO 130 PSI 1 1/4 IN. SIZENOTE: DO NOT DISMANTLE KNOBSET-POINT READOUT HAS BEEN CALIBRATEDIN THE FACTORY AND SET AT 60 PSI.DISMANTLING THE SELECTOR KNOB WILLCANCEL THIS CALIBRATION. RECALIBRATEUSING A PRESSURE GAUGE. SEE RECALIBRATION.60M7315A3UNSCREW THE BONNET WITH MT06A SERVICE TOOL.60Fig. 1. Changing outlet pressure. Attach new O-rings and screen onto the newcartridge. Make sure O-rings are properly installedabove and below the screen. Insert the new cartridge. Do not scratch the sides. Place the washer on top of the cartridge.NOTE:The inner lip must be pointing up to avoiddamaging the diaphragm. Replace the spring, spring cup, and bonnet. Readjust the outlet pressure to the desired settingby using the procedure described in Changing theDownstream Pressure section.4MT06A SERVICE TOOL(ORDER SEPARATELY)REMOVE CARTRIDGE USING TWO SCREWDRIVERS AS LEVERS.5 WHEN REASSEMBLING,ENSURE O-RINGS ANDWASHER ARE PROPERLYINSTALLEDWASHER(LIP UP)O-RINGSIf the dial knob assembly has been disassembled,recalibration is necessary. Recalibrate as follows: Install a good quality pressure gauge at the gaugetap connection. Open supply pressure and adjust spindle untilgauge shows 60 psi. Reassemble dial ring and adjustment knob so dialreads 60 psi.To recalibrate without a pressure gauge (make sure theDS05 is unpressurized), proceed as follows:NOTE:Recalibration without a pressure gauge is onlyan approximation and accuracy is notguaranteed. Turn spindle counterclockwise untilresistance stops. Turn spindle clockwise until a slightresistance is felt. Turn spindle ten and one-half revolutions clockwise. Reassemble dial ring and adjustment knob withadjustment knob set to 60 psi.5REASSEMBLE BONNET IN REVERSE ORDER.Fig. 2. Replacing the DS05 cartridge.M7313A362-3042
Page 1: DS05Dial Set Pressure Regulating Va
Page 5 and 6: DS05 DIAL SET PRESSURE REGULATING V
Page 7 and 8: DS05 DIAL SET PRESSURE REGULATING V

DS05 Dial Set Pressure Regulating Valves - Wolseley Express

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?