Technical and wiring information, Technical & wiring information, Ratings – Ross Controls ROSS MODULAR I User Manual
Page 29: Temperature rating, Response time** (ms), Operating pressure, Flow rating (cv)

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Temperature Rating
-15°C to 49°C (5°F to 120°F) Ambient.
Response Time** (ms)
##
Size 00 (12), Size 0 (25)
** With 100 PSIG supply, time (ms) required to fill from 0 to 90 PSIG and Exhaust
from 100 PSIG to 10 PSIG measured from the instant of energizing or de-
energizing 24VDC solenoid.
† For valve response time information for Size 1, 2, & 3 valves, see ROSS
Bulletin 379B - form # A10090.
Tested per ANSI / (NFPA) T3.21.8
Valve
Size
Port
Size
0 Cu. In. Chamber
## Cu. In. Chamber
Fill
Exhaust
Fill
Exhaust
Single Solenoid 2-Position - Air Return / Spring Assist
Size 00
1/8"
28
30
141
154
Size 0
1/4"
24
26
77
124
Size 1
†
3/8"
—
—
—
—
Size 2
†
1/2"
—
—
—
—
Size 3
†
3/4"
—
—
—
—
Operating Pressure
Cv tested per ANSI / (NFPA) T3.21.3
Flow Rating (Cv)
Valve Size
Port Size
2-Position
3-Position
Size 00
1/8"
0.55
0.50
Size 0
1/4"
1.1
1.0
Size 1
3/8"
1.0
1.0
Size 2
1/2"
2.3
2.3
Size 3
3/4"
3.4
3.4
Size 00, 0, 1, 2, & 3
Maximum: 145 PSIG (1000 kPa)
Minimum:
Internal Pilot
PSIG
(Min. kPa)
Series W66, Size 00
PSIG
(Min. kPa)
Series W66, Size 0
See pages 13 & 14 for
Sizes 1, 2 & 3
Single Solenoid - 2-Position
30
(207)
25
(173)
Double Solenoid- 2-Position
Single Remote Pilot - 2-Position **
Vacuum
Vacuum
Double Remote Pilot - 2-Position**
Vacuum
Vacuum
Double Solenoid - 3-Position
CC, OC, PC
35
(241)
35
(241)
Double Remote Pilot - 3-Position**
CC, OC, PC
Vacuum
Vacuum
Single Solenoid Pilot - 2-Position
Air Return / Spring Assist
30
(207)
30
(207)
Single Remote Pilot - 2-Position**
Air Return / Spring Assist
External Pilot *
*
*
All Functions
Vacuum
Vacuum
* External Pilot Pressure / Remote Pilot Supply - 45-145 PSIG (310-1000 kPa).
** Must be equal to or greater than operating pressure.
Size 00, 0, 1, 2, & 3
Technical & Wiring Information
Ratings