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CLA-VAL 90-21 Installation Operation & Maintenance
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CLA-VAL 90-21 Installation Operation & Maintenance

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Distributed By: M&M Control Service, Inc. www.mmcontrol.com/claval-index.php 800-876-0036
847-356-0566
90-21

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Summary of Contents for CLA-VAL 90-21

  • Page 1 Distributed By: M&M Control Service, Inc. www.mmcontrol.com/claval-index.php 800-876-0036 847-356-0566 90-21...
  • Page 2 BE FLUSHED OF ALL CHIPS, SCALE, AND FOREIGN MATTER. 2. When servicing the pilot control system, use care to prevent 5. Place the 90-21 valve in the line with flow through the valve in damage. If it is necessary to remove fittings or components, be the direction indicated on the inlet nameplate mounted on inlet sure they are kept clean and replaced exactly as they were.
  • Page 3 8" and Larger SEAT SEAT O-RING X46A STUD X58C 8" and Larger BODY PIPE PLUG (Globe Angle) Repair Parts *SUGGESTED REPAIR PARTS For a more detailed IOM Manual go to www.cla-val.com or contact a Cla-Val Regional Sales Office. N-90-21 UL (R-4/08)
  • 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: Typical Application

    Fire Protection Valve • In Line Service • Grooved Ends (1 1/2” - 8”) Cla-Val 90G-21 (globe) and 90A-21 (angle) Pressure Re- ducing Valves are indispensable in any fire protection sys- tem. Our diaphragm actuated design is proven highly reliable and easy to maintain.
  • Page 7 Water to 180°F Max. 7. Optional Epoxy Coating SPECIAL NOTE: THE MODEL 90-21 CAN BE SUPPLIED WITH INTERNAL EPOXY COATING OF THE MAIN VALVE. THIS OPTION (specify with suffix “KC) IS U.L. FILE NO. EX2855, C.C. NO. HNFX EPOXY COATING IS STRONGLY RECOMMENDED FOR ALL CAST VALVES.

  • Page 8: Troubleshooting

    Reducing Valve Description The Model 100-01 Hytrol Valve is the main valve for the CIa-VaI Model 90-21 Pressure Reducing Control Valve. It is a hydraulically operated, diaphragm-actuated, globe or angle pattern valve. This valve consists of three major components; body, di- aphragm assembly, and cover.
  • Page 9 1. Shut off pressure to the 90-21 valve by slowly closing upstream and is loose on the stem. In either case, this is sufficient cause to remove downstream isolation valves.
  • Page 10 2. Re-install the pilot system and tubing exactly as it was prior to ing. Line up the diaphragm holes with the stud or bolt holes on the removal. body. On larger valves with studs, it may be necessary 3. Follow steps under "Start-Up and Adjustment" Section in N- 90-21 UL Sheet.

  • Page 11: Parts List

    Distributed By: M&M Control Service, Inc. www.mmcontrol.com/claval-index.php 800-876-0036 847-356-0566 100-01 UL INLET OUTLET TOP VIEW GLOBE PATTERN PARTS LIST Item Description Pipe Plug Drive Screws (for nameplate) Hex Nut (8” and larger) Stud (8” and larger) Cover Bearing Cover Stem Nut Diaphragm Washer Diaphragm Spacer Washers...
  • Page 12 WITH OUTLET PRESSURE CONTROL SETPOINT AT 165 PSI & INLET PRES- 700 GPM & IS REDUCED UNTIL FLOW IS SURE AT 300 PSI, THE RECORDED OUTLET PRESSURE AT ZERO FLOW IS ZERO EQUAL TO AN ACCEPTABLE PLUS OR MINUS 10% N-90-21 UL Performance Characteristics (R-4/08)
  • Page 13 Distributed By: M&M Control Service, Inc. www.mmcontrol.com/claval-index.php 800-876-0036 847-356-0566 1-1/2" 90G-21 OBSERVED FLOW RATE WHEN INLET PRESSURE DROPS BELOW OUTLET PRESSURE SET POINT Inlet @ 155 psi; Outlet Setting @165 psi Inlet @ 100 psi; Outlet Setting @165 psi Inlet @ 50 psi; Outlet Setting @165 psi Inlet @ 20 psi;...
  • Page 14 Distributed By: M&M Control Service, Inc. www.mmcontrol.com/claval-index.php 800-876-0036 847-356-0566 2" 90G-21 OBSERVED FLOW RATE WHEN INLET PRESSURE DROPS BELOW OUTLET PRESSURE SET POINT Inlet @ 155 psi; Outlet Setting @ 165 psi Inlet @ 100 psi; Outlet Setting @ 165 psi Inlet @ 50 psi;...
  • Page 15 Distributed By: M&M Control Service, Inc. www.mmcontrol.com/claval-index.php 800-876-0036 847-356-0566 4" 90G-21 OBSERVED FLOW RATE WHEN INLET PRESSURE DROPS BELOW OUTLET PRESSURE SET POINT Inlet @ 155 psi; Outlet Setting @ 165 psi Inlet @ 100 psi; Outlet Setting @ 165 psi Inlet @ 50 psi;...
  • Page 16 Distributed By: M&M Control Service, Inc.

  • Page 17: Operation

    It may be used as a self-contained valve or as a pilot control for a Cla-Val main valve. It will hold a constant downstream pressure within MAINTENANCE very close pressure limits.
  • Page 18 Distributed By: M&M Control Service, Inc. www.mmcontrol.com/claval-index.php 800-876-0036 847-356-0566 PARTS LIST Pressure Reducing Control PRESSURE SETTING ADJUSTING SCREW (TURN CLOCKWISE TO INCREASE SETTING 5 3/8 cover vent SECTION B-B CLOSED POSITION Body and Disc Retainer Detail inlet for Low Pressure Control 3/8"...
  • Page 19 ADDED CRL-13, CRL-5A, CRA, CRA-10A, CHANGED SPRING RANGES TO MATCH CURRENT CONTROLS. *This drawing is the property of CLA-VAL and same and copies made thereof, if any, shall be returned to it upon demand. Delivery and disclosure hereof are made solely upon condition that the same shall not be used, copied ore reproduced, nor shall the subject here of be disclosed in any manner to anyone for any purpose, except as herein authorized, without prior approval of CLA-VAL.
  • Page 20 When it is used for deposit to dissolve. This will remove most of the common types of deposits. with the Cla-Val Valve, it is threaded into the upstream body port Caution: use extreme care when handling acid. If the deposit is not removed provided for it on the side of the valve.
  • 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 Proper Identification For ordering repair kits, replacement parts, or for inquiries concerning valve operation 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 details, type of pilot controls used and control adjustment ranges.

  • Page 25: Repair Kits

    Distributed By: M&M Control Service, Inc. www.mmcontrol.com/claval-index.php 800-876-0036 847-356-0566 INSTALLATION / OPERATION / MAINTENANCE REPAIR KITS MODEL Complete Replacement Diaphragm Assemblies for 100-01 and 100-20 Hytrol Main Valves For: Hytrol Main Valves with Ductile Iron, Bronze Trim Materials—125/150 Pressure Class Only. FACTORY ASSEMBLED Includes: Stem, Disc Guide, Disc, Disc Retainer, Spacer Washers, Diaphragm, Diaphragm Washer and Stem Nut.
  • Page 26 Distributed By: M&M Control Service, Inc. www.mmcontrol.com/claval-index.php 800-876-0036 847-356-0566 Repair Kits for 100-02/100-21 Powertrol and 100-03/100-22 Powercheck Main Valves For: Powertrol and Powercheck Main Valves—125/150 Pressure Class Only Includes: Diaphragm, Disc (or Disc Assembly) and O-rings and full set of spare Spacer Washers. Kit Stock Number Valve Kit Stock Number...