Data Sheet
Bulletin 71.1:CS800
5
Table 3. Inlet Pressure Ratings and Flow and Sizing Coefcients
ORIFICE SIZE
MAXIMUM OPERATING INLET PRESSURE
TO OBTAIN OPTIMUM PERFORMANCE
MAXIMUM
EMERGENCY INLET
PRESSURE
WIDE-OPEN FLOW
COEFFICIENTS
IEC SIZING COEFFICIENTS
psig Setpoints In. w.c. Setpoints
In. mm psig bar psig bar psig bar C
g
C
v
C
1
X
T
F
L
F
D
1/4
(1)
6.4
(1)
125 8.6 125 8.6 175 12.1 50 2.1 24.6 0.38 0.89 0.99
3/8 9.5 125 8.6 125 8.6 175 12.1 110 3.8 29.5 0.55 0.89 0.90
1/2 13 100 6.9 100 6.9 175 12.1 210 7.2 29.5 0.55 0.89 0.93
5/8 16 80 6.5 60 4.1 175 12.1 320 10.1 31.8 0.64 0.89 0.88
3/4 19 80 6.5 60 4.1 175 12.1 450 13.3 34 0.73 0.89 0.84
7/8 22 60 4.1 50 3.4 175 12.1 600 16.7 36 0.82 0.89 0.81
1
(1)
25
(1)
30 2.1 25 1.7 175 12.1 765 20.1 38.1 0.92 0.89 0.77
1-3/8
(1)(2)
35
(1)(2)
15 1.0 15 1.0 175 12.1 1125 29.8 37.7 0.90 0.89 0.76
1. Not available on the Types CS805, CS806, CS825 and CS826.
2. Not available on the Types CS803 and CS823.
Table 2. Body Sizes, Materials, End Connections and Maximum Cold Working Pressure Ratings
(5)
TYPE BODY MATERIAL END CONNECTION
BODY SIZE FACE-TO-FACE DIMENSION BODY INLET PRESSURE RATING
In. DN In. mm psig bar
CS800, CS805,
CS806, CS820,
CS825, CS826 and
CS850
Gray Cast Iron
NPT
1-1/4 - - - - 6.12 155
175 12.1
1-1/2 - - - - 6.12 155
2
(1)
- - - - 6.12 155
2 - - - - 6.12 155
CL125 FF
2 50 7.5 191
175 12.1
2 50 10 254
CS800
(3)
, CS820
(3)
,
CS850
(3)
, CS803,
CS823, CS804,
CS824 and CS854
Gray Cast Iron NPT 2
(2)
- - - - 6.12 155 175 12.1
Ductile Iron
NPT
1-1/4
(4)
- - - - 6.12 155
250 17.21-1/2 - - - - 6.12 155
2 - - - - 6.12 155
Rp 2 - - - - 6.12 155 250 17.2
CL125 FF / CL150 FF
2 50 7.5
(4)
191
(4)
250 17.22 50 10 254
2 50 10.5 267
PN 10/16
2 50 7.5
(4)
191
(4)
232 16
2 50 10 254
WCC Steel
NPT
1-1/4
(4)
- - - - 6.12 155
290 201-1/2 - - - - 6.12 155
2 - - - - 6.12 155
Rp 2 - - - - 6.12 155 290 20
CL150 RF 2 50 10 254 290 20
PN 10/16 2 50 10 254 232 16
1. Standard on Types CS800, CS820 and CS850.
2. Standard on Types CS803, CS804, CS823, CS824 and CS854.
3. If a ductile iron or steel body material is selected without an Integral True-Monitor™ or Slam-shut Overpressure Protection (OPP) device, the port located at the bottom of the body will
receive an aluminum plug.
4. Not available on Types CS804, CS824 and CS854.
5. The pressure/temperature limits in this Bulletin or any applicable standard or code limitation should not be exceeded.