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Control Spring Range Selection for VRP-SB-PD Controllers
Table 6 - Control Spring Range Selection for VRP-SB-PD-40 Direct-Acting and Reverse-Acting Controller
Spring
VRP-SB-PD
Color
Model No.
(Part
Number)
Beige
(25-8238)
Burgundy
(25-8239)
VRP-600-SB-
PD-40
Pink
(25-8240)
(1586-2413 kPa)
Yellow
(25-1306)
(2413-4137 kPa)
Beige
(25-8238)
Burgundy
(25-8239)
VRP-1000-
SB-PD-40
Pink
(25-8240)
(2413-4068 kPa)
Yellow
(25-1306)
(4068-7239 kPa)
Grey
(25-1562)
(6205-9308 kPa)
VRP-1500-
SB-PD-40
Violet
1000-1500 psig
(25-8073)
(6895-10342 kPa)
Note: Refer to motor information specified in Tables 3 and 4.
Table 7 - Control Spring Range Selection for VRP-SB-PD-80 Direct-Acting and Reverse-Acting Controller
Spring
VRP-SB-PD
Color
Model No.
(Part
Number)
Beige
(25-8238)
Burgundy
(25-8239)
VRP-600-
SB-PD-80
Pink
(25-8240)
(2068-2758 kPa)
Yellow
(25-1306)
(2758-4137 kPa)
Beige
(25-8238)
Burgundy
(25-8239)
VRP-1000-
SB-PD-80
Pink
(25-8240)
(3447-4826 kPa)
Yellow
(25-1306)
(4826-7239 kPa)
Grey
(25-1562)
(6895-9308 kPa)
VRP-1500-
SB-PD-80
Violet
(25-8073)
(7584-10342 kPa)
Note: Refer to motor information specified in Tables 3 and 4.
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No Rings
Low Gain
Control Range
Proportional
(psig/kPa)
Band w/3-15
psig (21-103
kPa) Output
100-150 psig
(689-1034 kPa)
130-220 psig
(689-1034 kPa)
51 psig
(352 kPa)
230-350 psig
350-600 psig
180-350 psig
(1241-1724 kPa)
220-350 psig
(1517-2413 kPa)
87 psig
(600 kPa)
350-590 psig
590-1050 psig
900-1350 psig
87 psig
(600 kPa)
No Rings
Low Gain
Control Range
Proportional
(psig/kPa)
Band w/6-30
psig (41-207
kPa) Output
N/A
N/A
102 psig
(703 kPa)
300-400 psig
400-600 psig
N/A
N/A
174 psig
(1200 kPa)
500-700 psig
700-1050 psig
1000-1350 psig
174 psig
(1200 kPa)
1100-1500 psig
Large Rings
Medium Gain
Control Range
Proportional
(psig/kPa)
Band w/3-15
psig (21-103
kPa) Output
90-150 psig
(621-1034 kPa)
110-200 psig
(758-1379 kPa)
36 psig
(248 kPa)
200-340 psig
(1379-2344 kPa)
330-600 psig
(2275-4137 kPa)
150-250 psig
(1034-1724 kPa)
200-350psig
(1379-2413 kPa)
61 psig
(421 kPa)
340-570 psig
(2344-3930 kPa)
570-1050 psig
(3930-7239 kPa)
850-1350 psig
(5861-9308 kPa)
61 psig
(421 kPa)
950-1500 psig
(6550-10342 kPa)
Large Rings
Medium Gain
Control Range
Proportional
(psig/kPa)
Band w/6-30
psig (41-207
kPa) Output
N/A
180-260 psig
(1241-1793 kPa)
72 psig
(496 kPa)
250-390 psig
(1724-2689 kPa)
380-600 psig
(2620-4137 kPa)
N/A)
310-430 psig
(1379-2413 kPa)
122 psig
(841 kPa)
430-660 psig
(2965-4551 kPa)
650-1050 psig
(4482-7239 kPa)
1000-1350 psig
(6895-9308 kPa)
122 psig
(841 kPa)
1100-1500 psig
(7584-10342 kPa)
Becker VRP-SB-PID Series Natural Gas Controllers Instruction Manual | 10
Small Rings
High Gain
Control Range
Proportional
(psig/kPa)
Band w/3-15
psig (21-103
kPa) Output
75-140 psig
(517-965 kPa)
100-200 psig
(689-1379 kPa)
23 psig
(159 kPa)
180-330 psig
(1241-2275 kPa)
320-600 psig
(2206-4137 kPa)
120-230 psig
(827-1586 kPa)
160-340 psig
1103-2344 kPa)
39 psig
(270 kPa)
310-550 psig
(2137-3792 kPa)
550-1050 psig
3792-7239 kPa)
850-1350 psig
(5861-9308 kPa)
39 psig
(270 kPa)
950-1500 psig
(6550-10342 kPa)
Small Rings
High Gain
Control Range
Proportional
(psig/kPa)
Band w/6-30
psig (41-207
kPa) Output
N/A
150-250 psig
(1034-1724 kPa)
46 psig
(317 kPa)
340-370 psig
(1655-2551 kPa)
370-600 psig
(2551-4137 kPa)
200-300 psig
(1379-2086 kPa)
250-400 psig
1724-2758 kPa)
78 psig
(538 kPa)
400-630 psig
(2758-4344 kPa)
620-1050 psig
4275-7239 kPa)
950-1350 psig
(6550-9308 kPa)
78 psig
(538 kPa)
1050-1500 psig
(7239-10342 kPa)
Setpoint
Change per
Revolution
of setpoint
screw
(psig/kPa)
7.4 psig
(51 kPa)
11.3 psig
(78 kPa)
24 psig
(165 kPa)
85 psig
(568 kPa)
12.6 psig
(87 kPa)
19.2psig
(132 kPa)
41 psig
(283 kPa)
143 pisg
(986 kPa)
227 psig
(1565 kPa)
276psig
(1903 kPa)
Setpoint
Change per
Revolution
of setpoint
screw
(psig/kPa)
7.4 psig
(51 kPa)
11.3 psig
(78 kPa)
24 psig
(165 kPa)
85 psig
(568 kPa)
12.6 psig
(87 kPa)
19.2psig
(132 kPa)
41 psig
(283 kPa)
143 pisg
(986 kPa)
227 psig
(1565 kPa)
276psig
(1903 kPa)
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