Flow Data
   
Flanged Insert Valve - F1, F6, FP (FIV)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com
Size Cv
1/2 2.4
3/4 4.4
1 6.1
1-1/4 12.7
1-1/2 18.8
2 32.0
2-1/2 42.5
3 89.0
4 144
5 182
6 277
8 470
10 810
12 1320
14 1650
16 2230
18 3010
20 4000

Cv values assume
Schedule 40 pipe

 P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

Adobe PDF ImageView F1, F6, FP Catalog Cut Sheets

FOR WATER AT 72°F
FIV flow data chart
WATER FLOWRATE - GPM

Wafer Insert Valve - WV (WIV)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com
Size Cv
1/2 2.4
3/4 4.4
1 6.1
1-1/4 12.7
1-1/2 18.8
2 32.0
2-1/2 42.5
3 89.0
4 144

Adobe PDF ImageView WV Catalog Cut Sheets 

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

WATER FLOWRATE - GPM
Universal Low Pressure-U3(UN-3) & Universal Socket Weld-US (UN-SW)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com
Size Cv
3/8 1.9
1/2 4.3
3/4 7.2
1 11.0
1-1/4 19.0
1-1/2 31.9
2 42.0
2-1/2 50.0
3 89.0
4 140

Adobe PDF ImageView U3 Catalog Cut Sheets 

Adobe PDF ImageView US Catalog Cut Sheets

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

U3 & US flow data chart

WATER FLOWRATE - GPM

Universal High Pressure - U1 (UN-10)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
3/8 1.9
1/2 3.5
3/4 7.2
1 11.0
1-1/4 19.0
1-1/2 31.9

Adobe PDF ImageView U1 Catalog Cut Sheets

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

U1 Flow data chart

WATER FLOWRATE - GPM
Sanitary Cartridge Valve - SC (SCV)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
3/4 2.4
1 4.6
1-1/2 9.5
2 20.9
2-1/2 37.0
3 77.9
4 141

Adobe PDF ImageView SC Catalog Cut Sheets

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

SC flow data chart

WATER FLOWRATE - GPM

3-A Sanitary Cartridge Valve - 3S
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
SIZE Cv
1 5.2
1-1/2 16.1
2 27.2
2-1/2 49.4
3 74.9
4 120

Adobe PDF ImageView 3S Catalog Cut Sheets

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I


FOR WATER AT 72°F

3S flow data chart

WATER FLOWRATE - GPM

Connector Valve - CN (CON)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
1/2 2.3
3/4 4.3
1 6.5
1-1/4 10.2
1-1/2 18.3
2 32.7
2-1/2 49.5
3 89.0
4 140

Adobe PDF Image View CN Catalog Cut Sheets

Back to top

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

CN flow data chart

WATER FLOWRATE - GPM

Bushing Valve - BU
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
1/2 X 3/8 2.6
3/4 X 1/2 4.6
1 X 3/4 6.6
1-1/4 X 1 12.6
1-1/2 X 1-1/4 18.8
2 X 1-1/2 32.0
2-1/2 X 2 42.5
3 X 2-1/2 89.0

Adobe PDF ImageView BU Catalog Cut Sheets

Back to top

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I


FOR WATER AT 72°F

BU flow data chart

WATER FLOWRATE - GPM

Sanitary Insert Valve - CB, TC (SIV)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
3/4 2.4
1 4.6
1-1/2 9.5
2 20.9
2-1/2 37.0
3 76.0
4 141

Adobe PDF ImageView CB, TC Catalog Cut Sheets

Back to top

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

SIV flow data

WATER FLOWRATE - GPM
Union Insert Valve - UV (UIV)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
1/2 2.3
3/4 4.2
1 6.1
1-1/4 13.8
1-1/2 19.0
2 33.3

Adobe PDF ImageView UV Catalog Cut Sheets

Back to top

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I


FOR WATER AT 72°F

UV flow data

WATER FLOWRATE - GPM

Lined Pipe Insert - LP (LPI)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Metal PTFE
  Cv Cv
1 2.4 2.4
1-1/2 6.1 6.1
2 18.8 18.8
3 42.5 32.0

Adobe PDF ImageView LP Catalog Cut Sheets

Back to top

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

LP flow data

WATER FLOWRATE - GPM
Horizontal Vertical Flanged & Drilled - HV (HVFD)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
1 14.2
1-1/4 25.6
1-1/2 39.2
2 89.0
2-1/2 140
3 185
4 275
6 790
8 1300
10 2175

Adobe PDF ImageView HV Catalog Cut Sheets

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

HV flow data

WATER FLOWRATE - GPM

Horizontal Vertical Flanged & Drilled Fluoropolymer Lined - HT (HVFD-T)
Note:   All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com
Size Cv
1 12.6
1-1/2 34.5
2 83.0

Adobe PDF ImageView HT Catalog Cut Sheets

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

HT flow data chart

WATER FLOWRATE - GPM

Tubing Check Valve - TV (TCV) & Tubing Check Valve-Flared - TF (TCV-F)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
1/4 1.5
3/8 2.0
1/2 3.1
5/8 4.3
3/4 5.4
7/8 8.5
1 11.5
1-1/4 16.0
1-1/2 29.0
2 60.0

Adobe PDF ImageView TV Catalog Cut Sheets

Adobe PDF ImageView TF Catalog Cut Sheets

Back to top

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

TC & TF flow data chart

WATER FLOWRATE - GPM

Mini-Check Valve - M1-M8 (MCV)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
1/8 1.1
1/4 1.4
3/8 3.2

Adobe PDF ImageView MV Catalog Cut Sheets

Back to top

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

MCV flow data chart

WATER FLOWRATE - GPM

Straight Sided - SI (SSI)
Note:  All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
1/2 2.4
3/4 4.2
1 6.6
1-1/4 11.0
1-1/2 17.4
2 32.0

Adobe PDF ImageView SI Catalog Cut Sheets

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

SI flow data chart

WATER FLOWRATE - GPM
Glass Pipe Insert - GP (GPI)
Note: All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs.
Consult factory for more information sales@checkall.com 
Size Cv
1 6.0
1-1/2 11.0
2 21.0
3 83.0
4 120

Adobe PDF ImageView GP Catalog Cut Sheets

 

P
R
E
S
S
U
R
E

D
R
O
P

P
S
I

FOR WATER AT 72°F

GP flow data chart

WATER FLOWRATE - GPM