The Sanitary Cartridge Valve (SC) is a stainless steel check valve for use in new or existing sanitary systems. The SC design seals on the ID of sanitary ferrules with replaceable food grade seals (Standard is FDA EPDM). The valves fits the Alfa Laval Inc. Bevel Seat and Tri-Clamp® fittings, the Waukesha Cherry Burrell® Q-Line and S-Line fittings, and others with ID dimensions equal to the “F” dimension listed in the Sizes & Dimensions. The compact SC design fits inside a single fitting and requires no additional space in the line. Its size makes it extremely economical when compared to full-bodied valves. Choose from Check-All’s broad selection of Seat Materials Cracking Pressure Options that allow this series to be used as a check valve, relief valve, or a vacuum breaker. Note: USP Class VI o-rings can be supplied with certification.
PED Compliance Statement: Due to the unique “insert” design of our 3S, SC, CB, TC, SI, & UV, style check valves, they do not constitute an “identifiable pressure bearing housing” as defined in PED Guideline 1/8. These styles must be installed into either ferrules or fittings to create a pressure bearing housing. Instead, they are classified as “components of pressure equipment” as defined in PED Guideline 1/8. As a result, these valves can be sold in the European Community and no CE Mark is required.
Size & Dimension
Line Size
Size Code
A
B
C**
D**
E
F***
Orifice Diameter
3/4
F
3/4
1/16
0.44
0.78
0.28
0.620
0.348
1
H
1
1/16
0.53
0.89
0.30
0.870
0.464
1-1/2
J
1-1/2
1/16
0.53
1.06
0.63
1.370
0.890
2
K
2
1/16
0.66
1.39
0.66
1.870
1.135
2-1/2
L
2-1/2
1/16
0.69
1.56
0.88
2.370
1.385
3
M
3
1/16
0.75
1.97
1.25
2.870
2.025
4
N
4
1/16
0.88
2.41
1.63
3.834
2.560
NOTES (DIMENSIONS TABLE)*Maximum nominal dimension for valve closed.
**Maximum nominal dimension for a fully open valve.
***Valves are designed to function with fittings having these internal diameters. (±0.005)
Consult factory for more information.
Available Materials
316 Stainless Steel (SS)
Pressure Temperature Table
Body Material
Line Size
Non-Shock Pressure Temperature Rating
316/316L Stainles Steel (SS)
3/4" - 1½"
1000 psig @ 100 °F
2" - 4"
725 psig @ 100 °F
Seat material and spring material selection may limit the recommended service temperature.
See seat ratings, spring ratings, and body material ratings for their respective recommended service temperatures.
Consult the factory for reduced P-T rating above 100 °F. Standard spring material is 316 Stainless Steel.
Flow Data
PRESSURE DROP PSI
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
FOR WATER AT 72°F
WATER FLOWRATE - GPM
Note: All flow curves and Cv values presume the valves are fully open with 1/2 PSI cracking pressure springs. Consult the factory for more information.
Valve Weights
SIZE
PART NUMBER
316 SS
3/4
SCF
0.3 oz.
1
SCH
1.0 oz.
1-1/2
SCJ
2.9 oz.
2
SCK
6.1 oz
2-1/2
SCL
11.2 oz.
3
SCM
11.4 oz.
4
SCN
2.6 lb.
Valve weight are approximate.
Seat & Cracking Pressure Options
Valve Style
Size Range
Body Materials
Other Options
Allowable Seat Materials
Other Options
Standard Cracking Pressures
Other Options
More Info.
Standard Spring Material
More Info.
SC
3/4" - 2"
316 SS
AFLAS®
Buna-N
FDA AFLAS®
FDA Buna-N
EPDM/FDA EPDM
FDA Viton®
Kalrez®
"Metal to Metal"
Neoprene
PTFE
USP Class VI EPDM
USP Class VI Silicone
USP Class VI Viton®
Viton®
1/8 PSI
1/2 PSI
1.5 PSI
3.5 PSI
316 SS
SC
2-1/2" - 4"
316 SS
AFLAS®
Buna-N
FDA AFLAS®
FDA Buna-N
EPDM/FDA EPDM
FDA Viton®
Kalrez®
"Metal to Metal"
Neoprene
PTFE
USP Class VI EPDM
USP Class VI Silicone
USP Class VI Viton®
Viton®
