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CV Series
CheckPSIDinDropPressureValves
Specifications                                                          B HEX
                                                                                            FREEFLOW
                                                                                                A
        PART         NOMINAL                                      MP               MF               FP               FO
       NUMBER           SIZE          A              B       THREAD SIZE      THREAD SIZE       THREAD SIZE     THREAD SIZE
     CV-250-****-*      1/4"         1.53           .68      .250-18 NPTF      .438-20 UNF      .250-18 NPSF     .438-20 ORB
     CV-370-****-*      3/8"         1.75           .81      .375-18 NPTF      .562-18 UNF      .375-18 NPSF     .562-18 ORB
     CV-500-****-*      1/2"         2.22           1.00     .500-14 NPTF      .750-16 UNF      .500-14 NPSF     .750-16 ORB
     CV-750-****-*      3/4"         2.75           1.38     .750-14 NPTF      1.062-12 UN      .750-14 NPSF     1.062-12 ORB
     CV-1000-****-*      1"          3.31           1.62      1-11.5 NPTF      1.312-12 UN       1-11.5 NPSF     1.312-12 ORB
                                                                                                 MAXIMUM           CRACK
      NOMINAL           ORB                  FB                   MS               NET           OPERATING       PRESSURE
        SIZE        THREAD SIZE          THREAD SIZE         THREADPressureDropinPSID  SIZEWEIGHT PRESSURE         RANGE
         1/4"       .438-20 ORB           G 1/4 BSPP          .562-18 UNF         12 KG           3000 PSI        5110 PSI
         3/8"       .562-18 ORB           G 3/8 BSPP          .688-16 UN          19 KG           3000 PSI        5100 PSI
         1/2"       .750-16 ORB           G 1/2 BSPP          .812-16 UN          35 KG           3000 PSI        5130 PSI
         3/4"       1.062-12 ORB          G 3/4 BSPP          1.188-12 UN         59 KG           3000 PSI         580 PSI
          1"        1.312-12 ORB           G 1 BSPP           1.438-12 UN         96 KG           3000 PSI         550 PSI
****Designate fitting style (FOFO, MOMS, FPMP, etc.).Note:Fitting configurations can be either the same (FOFO) or mixed (FOFP) to suit various plumbing requirements.
-*Designate crack pressure in 5 PSI increments.(Not to exceed max.crack press.range.)
Flow Data
    70                                                             100
                                                                                1/2" 3/4"
                                                                    90
    60
                                                                    80
    50                                                              70
                                                                                               1"
                                                                    60
    40
                                                                    50
    30
              1/4"         3/8"                                     40
                                                                    30
    20
                                                                    20
    10
                                                                    10
                                                                     0  10  20  30  40  50  60  70  80  90  100
     0   2   4   6   8   10  12   14  16
                                                                                Flow (GPM)
                  Flow (GPM)
                                                                  Ordering Information
Check Valves                                                      CV Series
C V -    -     -                                                                                                                EValvesCheck
                                                 Standard Crack Pressure is 5 PSI.
                                                 Designate in 5 PSI increments.
                                                 Not to exceed Crack Pressure Range
                                                 for designated size.
                                                 Example: 5 = 5 PSI, 10 = 10 PSI.
 SERIES     SIZE         FITTING STYLE
            250 - 1/4"   MPMP -  Male Pipe Inlet to Male Pipe Outlet
            370 - 3/8"   FOFO -  Female O-Ring Boss Inlet to Female O-Ring Boss Outlet
            500 - 1/2"   MFMF -  Male Flare Inlet to Male Flare Outlet
            750 - 3/4"   MOMO -  Male O-Ring Boss Inlet to Male O-Ring Boss Outlet
            1000 - 1"    FPFP -   Female Pipe Inlet to Female Pipe Outlet
                         FBFB -   Female British Pipe Inlet to Female British Pipe Outlet
                         MSMS -  Male Face Seal Inlet to Male Face Seal Outlet
 ****Designate fitting style (FOFO, MOMS, FPMP, etc.).Note:Fitting configurations can be either the same (FOFO) or mixed (FOFP) to suit various plumbing requirements.
                                                                                                     Quick Coupling Division
                                                                                     8145 Lewis Road · Minneapolis, MN 55427
                                                             E-13
                                                                                                www.parker.com/quickcouplings