Data Sheet

Bulletin 71.1:CS200

Figure 5. NPS 1 Body Type CS200IR Typical Relief Performance (Linkage Disconnect) at 7 inches w.c. / 17 mbar Set Pressure

ORIFICE SIZE REGULATOR SET PRESSURE

MAXIMUM INLET PRESSURE TO KEEP OUTLET PRESSURE AT OR BELOW

(1)(2)

1 psig / 69 mbar 2 psig / 138 mbar

Inch mm Inch w.c. mbar psig bar psig bar

1/8 3.2

7 17

36 2.5 >125 >8.6

3/16 4.8 15 1.0 74 5.1

1/4 6.4 6 0.41 36 2.5

3/8 9.5 3 0.21 12 0.83

1. Relief value obtained by disconnecting the lever.

2. 2 psig / 138 mbar is the maximum outlet pressure allowed per ANSI B109.4.

Table 8. Type CS200IR Internal Relief Performance Table for 7 inches w.c. / 17 mbar Setpoint

INLET PRESSURE, psig / bar

OUTLET PRESSURE, psig / bar

10 / 0.69

20 / 1.4 30 / 2.1 40 / 2.8 50 / 3.4 60 / 4.1 70 / 4.8 80 / 5.5 90 / 6.2 100 / 6.9 110 / 7.6 120 / 8.3

3 /

0.21

2.5 /

0.17

2 /

138 mbar

1.5 /

103 mbar

1 /

69 mbar

0.5 /

34 mbar

1/8-INCH / 3.2 mm

ORIFICE

3/16-INCH / 4.8 mm

ORIFICE

1/4-INCH / 6.4 mm

ORIFICE

3/8-INCH /

9.5 mm ORIFICE

1/2-INCH / 13 mm

ORIFICE

ANSI B109.4 MAXIMUM

OUTLET PRESSURE