The document provides specifications for air-to-close valves from Nor' East Controls, including valve sizes from 1/2" to 16", stem sizes, actuator sizes and spring ranges, required actuator pressures, and maximum pressure drops for valve shutoff. It details the valve body ratings, travel distances, and short-stroked valve options. The bulletin aims to outline the valve shutoff capabilities for users to select the proper valves and actuators for their applications.

2. 2
 Nor’ East Controls
BULLETIN 495.01-1NE
December 2010

3. 3
 Nor’ East Controls
BULLETIN 495.01-1NE
December 2010

4. Valve Shutoff Capabilities
Air-to-Close (Spring-to
Open)
Valve Size
Valve
Stem Size
Valve Body
Rating lbs
Actuator
Size
Travel
Actuator
Spring
Range
psi
kPa
Requiered
Actuator
Pressure
psi
kPa
Maximum Allowable
Pressure Drop
psi
kPa
Closed
1
125"
25mm
32mm
3/8"
10mm
125-600
9
3/4"
19mm
3-15
21-103
35
241
1480
10200
900
6200
125-600
11
1"
25mm
3-15
21-103
35
241
1480
10200
900
6200
125-600
11
125-600
13
125-300
13
600
15
1-1/8"
11mm
1-1/2"
38mm
1-1/2"
38mm
1-1/2"
38mm
3-15
21-103
3-15
21-103
3-15
21-103
3-15
21-103
3-15
21-103
6-30
41-207
3-15
21-103
3-15
21-103
3-17
21-117
3-15
21-103
3-15
21-103
3-18
21-124
3-27
21-186
3-30
21-207
6-30
41-207
3-15
21-103
3-27
21-186
6-30
41-207
3-14
21-96
3-15
21-103
3-27
21-186
3-15
21-103
3-19
21-131
33
227
35
241
32
220
30
207
36
248
50
345
30
207
45
310
50
345
35
241
45
310
50
345
50
345
50
345
50
345
50
345
50
345
50
345
35
241
50
345
50
345
35
241
35
241
1480
10200
1480
10200
740
5100
1480
10200
740
5100
740
5100
1480
10200
1480
10200
1480
10200
1480
10200
1480
10200
1480
10200
1240
8540
920
6340
920
6340
1480
10200
680
4600
375
2580
1400
9650
1100
7580
320
2200
1000
6890
540
3720
900
6200
900
6200
740
5100
900
6200
650
4480
740
5100
900
6200
500
3450
600
4130
600
4130
225
1550
280
1930
450
9900
450
9900
450
9900
100
600
200
1380
200
1380
150
1030
90
620
180
1240
150
1030
200
1380
2"
50mm
2,5"
65mm
3"
80mm
3"
80mm
3/8
(7/16"*)
10mm
(11mm)
(7/16")
(11mm)
(7/16")
(11mm)
1/2"
13mm
3/4"
19mm
4"
100mm
1/2"
13mm
125-300
13
1-1/2"
38mm
4"
100mm
3/4"
19mm
60
15
1-1/2"
38mm
1,5"
40mm
15
6"
150mm
3/4"
19mm
8"
200mm
1
25mm
125-600
2"
51mm
125-600
185
2"
51mm
2-1/2"
64mm
3-1/2"
89mm
24
1
25mm
185
18L
10"
250mm
3-1/2"
89mm
125-600
4"
102mm
12"
300mm
1
25mm
Open
125-600
18L
24
16"
340mm
4"
102mm
Contact Nor'East
*Extension Bonnet
4
 Nor’ East Controls
BULLETIN 495.01-1NE
December 2010

5. Valve Shutoff Capabilities
Air-to-Close (Spring-to
Open)
Valve Size
1
125"
25mm
32mm
1,5"
40mm
Valve
Stem Size
Valve Body
Rating lbs
125-600
3/8
(7/16"*)
10mm
(11mm)
125-600
11
11
Travel
Requiered
Actuator
Pressure
psi
kPa
Closed
Open
3/4"
19mm
3/4"
19mm
15-34
103-234
13-38
90-282
40
276
40
276
685
4480
1480
10200
685
4480
900
6200
1"
25mm
Actuator
Size
9
3/8"
10mm
18-34
124-234
40
276
1480
10200
900
6200
16-35
110-241
9-21
24-145
12,5-21
86-145
9,5-28
85-103
9,5-28
85-103
9,5-28
85-103
11-27†
76-186†
9,5-28
85-103
11-27
76-186
9,5-28
85-103
11-27†
76-186†
10-26
26-179
11,5-32
79-220
18-43
124-296
15,5-31,5
107-217
13-32
90-220
15-45
103-310
21-42
145-280
17-43
117-296
10-32,5
69-224
15-45
103-310
8,5-35
59-241
10-35‡
89-241‡
11,5-35**
79-241**
40
276
24
185
35
241
31
214
31
214
31
214
30
207
31
214
30
207
31
214
30
207
30
207
35
241
50
345
35
241
35
241
50
345
45
310
45
310
35
241
50
345
35
241
35
241
35
241
750
5170
500
3450
1480
10200
1480
10200
740
5100
1200
8270
1480
10200
500
3450
740
5100
500
3450
1480
10200
1480
10200
830
5720
1480
10200
1480
10200
540
3720
850
5860
1480
10200
600
4130
850
5860
165
1140
300
2070
580
4000
850
5860
750
5170
500
3450
900
6200
900
6200
740
5100
900
6200
900
6200
500
3450
740
5100
500
6200
900
6200
900
6200
600
4130
600
4130
600
4130
325
2450
450
3100
300
2070
200
1800
300
2070
165
1140
280
1930
280
1930
280
1930
11
2"
50mm
(7/16")
(11mm)
2,5"
65mm
3"
80mm
(7/16")
(11mm)
1/2"
13mm
3"
80mm
4"
100mm
4"
100mm
125-600
13
125-600
15
125-300
15
3/4"
19mm
600
15
1/2"
13mm
125-300
15
15
3/4"
19mm
600
186
1-1/8"
11mm
1-1/2"
38mm
1-1/2"
38mm
1-1/2"
38mm
1-1/4"
32mm
1-1/2"
38mm
1-1/2"
38mm
1-1/4"
32mm
1-1/2"
38mm
186
6"
150mm
3/4"
19mm
125-600
8"
200mm
1
25mm
125-600
10"
250mm
1
25mm
125-600
12"
300mm
1"
25mm
18L
18L
18L
24
2"
51mm
2-1/2"
64mm
3-1/2"
89mm
3-1/2"
89mm
18L
4"
102mm
125-600
24
16"
340mm
Maximum Allowable
Pressure Drop
psi
kPa
Actuator
Spring
Range
psi
kPa
Contact Nor'East
*Extension Bonnet
† Short-Stroked to 1-1/4*(32mm)
‡ Short-Stroked to 3* (80mm)
**Short-Stroked to 3-1/2* (89mm)
5
 Nor’ East Controls
BULLETIN 495.01-1NE
December 2010

6. 6
 Nor’ East Controls
BULLETIN 495.01-1NE
December 2010

7. 7
 Nor’ East Controls
BULLETIN 495.01-1NE
December 2010