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

Automatic control valves
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90-21

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Summary of Contents for CLA-VAL 90-21

  • Page 1 90-21...
  • Page 2 2 psi above the CRD (3) set point. The relief the 90-21 set pressure for 1-1/2" thru 8" valve sizes and 2 psi for 10" and valve for the 10" and 12" 90-21 should be installed a recommended min- 12"...
  • Page 3 Repair Parts For a more detailed Iom manual go to www.cla-val.com or contact a cla-Val regional sales office. CLA-VAL 1701 Placentia Ave • Costa Mesa CA 92627 Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: info@cla-val.com • www.cla-val.com N-90-21 UL (R-09/2019) ©...
  • Page 4 93480 90-21 Model Pressure Reducing Valve "Underwriters Laboratories Listed" UL listed model numbers: 90G-21, Globe 90A-21, Angle INLET OUTLET Note: For steel and ductile iron 300 valves, use CRDKX [with special All sizes, KX = Red paint diaphragm washer, yoke, and...

  • Page 5: Optional Features

    93480 90-21 Model Pressure Reducing Valve "Underwriters Laboratories Listed" Pressure Reducing Feature Pressure reducing control (3) is a normally open control that responds to main valve outlet pressure changes. An increase in outlet pressure tends to close control (3) and a decrease in outlet pressure tends to open control (3). This causes main valve cover pressure to vary and the main valve modulates (opens and closes), maintaining a relatively constant outlet pressure.
  • Page 6 93480 90-21 Model Pressure Reducing Valve "Underwriters Laboratories Listed" Ductile iron/Cast steel: Class 150, DI: 250 psi max ULC Listed Class 150, STL: 285 psi max Ductile iron valve: Class 300, DI/STL: 300 psi max Class 150: 250 psi max...

  • Page 7: 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 8: Preventative Maintenance

    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 9 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 10: Top View

    When ordering please specify: All nameplate data, Description, Item number CLA-VAL 1701 Placentia Ave • Costa Mesa CA 92627 Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: info@cla-val.com • www.cla-val.com N-100-01 UL (R-09/2019) Copyright Cla-Val 2019 Printed in USA Specifications subject to change without notice.

  • Page 11: Test Description

    EQUAL TO AN ACCEPTABLE PLUS OR MINUS 15 PSI OF SETPOINT. CLA-VAL 1701 Placentia Ave • Costa Mesa CA 92627 Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: info@cla-val.com • www.cla-val.com N-90-21 UL Performance Characteristics (R-09/2019) Copyright Cla-Val 2019 Printed in USA Specifications subject to change without notice.
  • Page 12 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; Outlet Setting @ 30 psi FLOW (GPM) 1-1/2"...
  • Page 13 3" 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 8" 90G-21 OBSERVED FLOW RATE WHEN INLET PRESSURE DROPS BELOW OUTLET PRESSURE SET POINT AT VARIOUS INLET PRESSURES Inlet @ 200 psi; Outlet Setting @ 165 psi Inlet @ 150 psi; Outlet Setting @ 120 psi Inlet @ 100 psi; Outlet Setting @ 90psi Inlet @ 50 psi;...

  • Page 15: Operation

    10"-16" Minimum Flow GPM 4-15 35-95 CLA-VAL 1701 Placentia Ave • Costa Mesa CA 92627 Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: info@cla-val.com • www.cla-val.com N-CRD (R-01/2019) Copyright Cla-Val 2019 Printed in USA Specifications subject to change without notice. ©...
  • Page 16 Buna 9170002B ® *SUGGESTED REPAIR PARTS CLA-VAL 1701 Placentia Ave • Costa Mesa CA 92627 Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: info@cla-val.com • www.cla-val.com PL-CRD (R-09/2019) Copyright Cla-Val 2019 Printed in USA Specifications subject to change without notice. ©...
  • Page 17 F), and the size of the external connection (refer to column B or G). CLA-VAL P.O. Box 1325 • Newport Beach, CA 92659-0325 • Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: claval@cla-val.com • Website cla-val.com © Copyright Cla-Val 2011 Printed in USA Specifications subject to change without notice.

  • Page 18: Product Changes

    This warranty shall not apply if the product has been RESPONSIBILITY altered or repaired by others, and Cla-Val. shall make no We will not be responsible for delays resulting from strikes, allowance or credit for such repairs or alterations unless accidents, negligence of carriers, or other causes beyond our control.
  • Page 19 Cla-Val shall not be liable for any incidental or consequential 2. Cla-Val reserves the right to refuse the return of any products. loss, damage or expense arising directly or indirectly from 3. Products more than six (6) months old cannot be returned for cred- the use of the product.

  • Page 20: Repair Kits

    INSTALLATION / OPERATION / MAINTENANCE REPAIR KITS MODEL Model 100-01 Hytrol Main Valve BUNA-N MATERIAL RUBBER KIT REPAIR KIT REBUILD ASSEMBLY STUD & NUT KIT STOCK NO. STOCK NO. STOCK NO. STOCK NO. 3/8” 9169801K 21176614B 21176633J 1/2” 9169802H 21176602F 21176615A 21176634H 3/4”...
  • Page 21 When ordering, please give complete nameplate data of the valve and/or control being repaired. MINIMUM ORDER CHARGE APPLIES CLA-VAL 1701 Placentia Ave • Costa Mesa CA 92627 Phone: 949-722-4800 • Fax: 949-548-5441 • E-mail: info@cla-val.com • www.cla-val.com © Copyright Cla-Val 2019 Printed in USA Specifications subject to change without notice.

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90-21 ul690-21 ul

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