Data Sheet
Bulletin 71.3:Y692VB
4
Table 2. Vacuum Control Pressure Ranges and Spring Part Numbers
(1)
1 to 3-inches w.c.
1.5 to 5-inches w.c.
3 to 8-inches w.c.
(2 to 7 mbar)
(2)
(4 to 12 mbar)
(2)
(7 to 20 mbar)
(2)
1.2-inches w.c.
2.2-inches w.c.
4.0-inches w.c.
(3 mbar)
(5 mbar)
(10 mbar)
1D892527022
1D7654000A2
0B0197000A2
Brown
Unpainted
Purple
0.109-inches
0.120-inches
0.148-inches
(2,77 mm)
(3,05 mm)
(3,76 mm)
8 to 16-inches w.c.
16 to 32-inches w.c.
0.25 to 3 psig
(20 to 40 mbar)
(40 to 80 mbar)
(17 to 207 mbar)
5.0-inches w.c.
10.5-inches w.c.
2 psig
(13 mbar)
(26 mbar)
(138 mbar)
1B766270622
1B883327022
1A630627022
Gray
Unpainted
Black
0.156-inches
0.187-inches
0.275-inches
(3,96 mm)
(4,75 mm)
(6,99 mm)
1. Pressure ranges are based on the spring case pointing up. Pointing the spring case down increases the pressure range 1.7-inches w.c. (4 mbar).
(Example: 1 to 3-inches w.c. (2 to 7 mbar) changes to 2.7 to 4.7-inches w.c. (7 to 12 mbar)).
2. Do not use Fluorocarbon (FKM) with these springs at diaphragm temperatures lower than 40°F (4°C).
Table 1. Body Sizes and End Connection Styles
(1)
®
1-1/2 (40) NPT
NPT, SWE, CL150 RF,
CL300 RF, or PN 16/25/40
NPT or CL150 RF
2 (50) NPT or CL125 FF
1. All anges are welded on to the body and have a face-to-face dimension of 14-inches (356 mm).
g
1
m
3/4
1-3/16
(19)
(30)
260
720
7.4
20.6
35
35
0.79
Table 3. Flow Coefcients
Table 4. IEC Sizing Coefcients
X
T
F
D
F
0.76 0.50 0.89