90-21
Distributed By: M&M Control Service, Inc.
www.mmcontrol.com/claval-index.php 800-876-0036 847-356-0566
Page 1: ...90 21 Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...
Page 2: ...ing is done with flow rate as low as practical 8 Adjust the CRD Control 3 to desired pressure To change pres sure setting turn the adjusting screw in clockwise to increase delivery pressure Turn the a...
Page 3: ...ain Valve 2 X58C Restriction Fitting 3 CRD Pressure Reducing Control 4 X46A Flow Clean Strainer HYTROL MAIN VALVE inlet Cover vent 3 8 NPT Cap Adjusting Screw Jam Nut Cover Spring Hex Nut Belleville W...
Page 4: ...Distributed By M M Control Service Inc...
Page 5: ...Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...
Page 6: ...pressure regardless of changing flow rate and or varying inlet pressure The valves pilot con trol system is very sensitive to slight downstream pressure fluctuations and will automatically open or cl...
Page 7: ...Cover Material 5 Threaded Flanged or Grooved 6 Pressure Class 7 Optional Epoxy Coating specify with suffix KC When Ordering Please Specify E 90G 21 R 7 08 Dimensions VALVE SIZE inches A THREADED AA 1...
Page 8: ...part the diaphragm and disc assembly So there are only three major types of problems to be considered First Valve is stuck that is the diaphragm assembly is not free to move through a full stroke eit...
Page 9: ...hing is mechanically restricting the stroke of the valve The cover must be removed and the obstruction located and re moved The stem should also be checked for scale build up See Maintenance Section f...
Page 10: ...for further removal On the smaller valves the entire diaphragm assembly can be held by the stem in a vise equipped with soft brass jaws before removing the stem nut The use of a pipe wrench or a vise...
Page 11: ...4 Stud 8 and larger 5 Cover Bearing 6 Cover 7 Stem Nut 8 Diaphragm Washer 9 Diaphragm 10 Spacer Washers 11 Disc Guide 12 Disc Retainer 13 Disc 14 Stem 15 Seat 16 Body 17 Spring 22 Flat Head Screws 8 a...
Page 12: ...AT ZERO FLOW WHEN FLOW STARTS AT 275 GPM IS REDUCED UNTIL FLOW IS ZERO WITH OUTLET PRESSURE CONTROL SETPOINT AT 30 PSI INLET PRES SURES FROM 75 TO 300 PSI THE RECORDED OUTLET PRESSURE AT ZERO FLOW RA...
Page 13: ...utlet Setting 165 psi Inlet 20 psi Outlet Setting 30 psi 1 1 2 90A 21 Inlet 155 Outlet Setting 165 psi Inlet 100 psi Outlet Setting 165 psi Inlet 50 psi Outlet Setting 165 psi Inlet 20 psi Outlet Sett...
Page 14: ...psi Inlet 50 psi Outlet Setting 165 psi Inlet 20 psi Outlet Setting 30 psi 3 90G 21 175 150 125 100 75 50 25 0 0 100 200 300 400 500 600 OUTLET PRESSURE PSI FLOW GPM Inlet 155 psi Outlet Setting 165 p...
Page 15: ...psi Inlet 50 psi Outlet Setting 165 psi Inlet 20 psi Outlet Setting 30 psi 1000 750 500 250 0 0 25 50 75 100 125 150 175 OUTLET PRESSURE PSI FLOW GPM 1250 1500 6 90G 21 Page 4 UL Tested March 23 1999...
Page 16: ...Distributed By M M Control Service Inc...
Page 17: ...id Back off adjusting screw Mechanical obstruction Disassemble and reassemble properly refer to Reassembly Worn disc Disassemble remove and replace disc retainer assembly Yoke dragging on inlet nozzle...
Page 18: ...on Material Part Number List Price 1 Cap PL 67628J 2 Adjusting Screw BRS 7188201D 3 Jam Nut 3 8 16 SS 6780106J 4 Machine Screw Fil Hd 8 Req d 303 6757821B 5 Cover BRS C2544K 6 Nameplate Screw SS 67999...
Page 19: ...S CDB 7 CRL 5A CRL 13 10 60 10 60 10 60 12 0 12 0 12 0 162 DIA V5695B YELLOW MUSIC WIRE CDB 7 CRL 5A CRL 13 20 80 20 80 20 80 14 5 14 5 14 5 207 DIA C1124B CAD PLT MUSIC WIRE CDB 7 CRL 13 CRL 5A 50 15...
Page 20: ...2 1 3 8 7 8 1 1 4 1 2 2 3 4 1 1 4 1 3 4 7 8 1 2 1 4 1 4 2 3 4 1 2 1 3 8 7 8 Flow Clean Strainer X46 INSPECTION Inspect internal and external threads for damage or evidence of cross threading Check in...
Page 21: ...Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...
Page 22: ...Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...
Page 23: ...Distributed By M M Control Service Inc www mmcontrol com claval index php 800 876 0036 847 356 0566...
Page 24: ...it is important to properly identify Cla Val products already in service Include all nameplate data with your inquiry Pertinent product data includes valve function size material pressure rating end d...
Page 25: ...812G 9169813E 9169815K 9817901D 9817902B N A 9817903K 9817905E 9817905E 3 8 1 2 3 4 1 1 1 4 1 1 2 2 2 1 2 3 4 6 8 9169806J 9169807G 9169808E 9169809C 9169810A 9169817F 9169818D 9169819B 9169820K 91698...
Page 26: ...ber Pilot Control Kit Stock Number Pilot Control Kit Stock Number CDB 9170006C CRM 7 1263901K CDB KB 9170012A CDB 3D 9170023H CFM 7A 1263901K CRA KB N A CDB 3I 9170024F CFM 9 12223E CRD KB w bucking s...
