83
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IMPORTANT NOTE: Please read carefully and thoroughly all of the CAUTIONS, WARNINGS on the inside back cover.
Port PV
(pressure
verification)
B
1/4 Signal Port
1/4 Signal Port
2X O 0.34 (8.0)
Port 1(inlet)
[Port 2 (outlet)
on
opposite site)
]
Port 3
(exhaust)
5-pin M12
connector
A
C
Port PV
(pressure
verification)
1/4 Signal Port
1/4 Signal Port
2X O 0.34 (8.0)
5-pin M12
connector
Port 1(inlet)
[Port 2 (outlet)
on opposite site]
2/2 Valves
PV
2
1
12
PV
2
12
3
1
Port Valve Model Avg. C
V
Dimensions inches (mm) Weight
Size Number
* 1 - 2 A B C lb (kg)
1/2 SV27NC105405ASAA 7.7 5.7 (145) 6.1 (155) 3.1 (79) 3.4 (1.6)
3/4 SV27NC105505ASAA 9.0 5.7 (145) 6.1 (155) 3.1 (79) 3.4 (1.6)
1 SV27NC105605ASAA 9.0 5.7 (145) 6.1 (155) 3.1 (79) 3.4 (1.6)
1 SV27NC107605ASAA 24 6.8 (173) 8.7 (220) 4.1 (105) 6.7 (3.0)
1 ¼ SV27NC107705ASAA 29 6.8 (173) 8.7 (220) 4.1 (105) 6.7 (3.0)
1 ½ SV27NC107805ASAA 29 6.8 (173) 8.7 (220) 4.1 (105) 6.7 (3.0)
3/2 Valves
Port Size Valve Model Avg. C
V
Dimensions inches (mm) Weight
1, 2 3 Number
* 1 - 2 2-3 A B C lb (kg)
1/2 1 SV27NC305405ASAA 6.3 9.2 5.7 (145) 6.4 (163) 3.6 (91) 3.3 (1.5)
3/4 1 SV27NC305505ASAA 7.7 11 5.7 (145) 6.4 (163) 3.6 (91) 3.3 (1.5)
1 1 SV27NC305605ASAA 8.0 12 5.7 (145) 6.4 (163) 3.6 (91) 3.3 (1.5)
1 1½ SV27NC307605ASAA 23 34 6.8 (173) 8.8 (222) 4.9 (123) 6.4 (2.9)
1¼ 1½ SV27NC307705ASAA 30 32 6.8 (173) 8.8 (222) 4.9 (123) 6.4 (2.9)
1½ 1½ SV27NC307805ASAA 30 31 6.8 (173) 8.8 (222) 4.9 (123) 6.4 (2.9)
1½ 2½
SV27NC309805ASAA 68 70 8.7 (219) 11.8 (300) 6.4 (161) 17.2 (7.8)
2 2½
SV27NC309905ASAA 70 70 8.7 (219) 11.8 (300) 6.4 (161) 17.2 (7.8)
2½ 2½
SV27NC309955ASAA 70 71 8.7 (219) 11.8 (300) 6.4 (161) 17.2 (7.8)
STANDARD SPECIFICATIONS (for valves on this page):
Ambient Temperature: 40° to 120°F (4° to 50°C).
Media Temperature: 40° to 175°F (4° to 80°C).
Flow Media: Filtered air.
Inlet Pressure: 40 to 150 psig (2.8 to 10 bar).
Pilot Pressure: Must be equal to or greater than inlet pressure.
Switch Current/Voltage Max.: 2.5 A/120 volts AC.
Switch Current/Voltage Min.: 50 mA/24 volts DC.
Port Threads:
NPT, BSPP.
NOTE: Electrical life of switch varies with conditions and voltage;
rated in excess of 15 million cycles.
Functional Safety Data: Category 2 PL d; B10d:
Valve - 20,000,000, Switch – 2,000,000; PFH: 2.35x10
-7
; MTTFd:
98.15 (n
op
: 7360); DC (obtained by monitoring safety switch
status): 3/2 valves - 99%, 2/2 and PO Check valves - 90%; Ross
recommends testing the switch function and sealing for load holding
valves every 8 hours.
Vibration/Impact Resistance: Calculated to BS EN 60068-2-27.
• Pre-engineered panel-mounted design with air entry via filter and regulator
“FR”, or filter, regulator, and lubricator “FRL”
• Includes 3/2 Normally Closed Sensing Valve
• Applications include Air Dump and Trapped-Pressure Release
Air Entry Packages with 3/2 Normally Closed Sensing Valve
Model Air Entry Port Size Avg. C
V
Dimensions (inches/mm)
Number* Type 1-2 3 1-2 2-3 Length Width Depth
Category 2 with Modular L-O-X
®
and SV27 Sensing Valve
RC208-09
** FR 1/2 1/2 6.3 9.2 14.8 (375) 11.0 (279) 6.6 (168)
RC208L-09
** FRL 1/2 1/2 6.3 9.2 14.8 (375) 11.0 (279) 6.6 (168
)
Category 2 with Manual L-O-X
®
and SV27 Sensing Valve
RC208-06
**
FR 1/2 1/2 6.3 9.2 23.0 (585) 12.8 (326) 6.7 (171)
RC212-06
**
FR 3/4 3/4 7.7 11 23.0 (585) 12.8 (326) 6.7 (171)
RC216-06
**
FR 1 1 8.0 12 28.0 (712) 17.0 (432) 9.5 (242)
RC208L-06
** FRL 1/2 1/2 6.3 9.2 23.0 (585) 12.8 (326) 6.7 (171)
RC212L-06
** FRL 3/4 3/4 7.7 11 23.0 (585) 12.8 (326) 6.7 (171)
RC216L-06
** FRL 1 1 8.0 12 31.8 (808) 17.0 (432) 9.5 (242)
* NPT pressure port threads. M12 connectors available, consult ROSS.
The standard Air Entry Packages are supplied with metal bowl and auto drain.
* NPT port threads. For BSPP threads, replace “N” in the model number with a “D”, e.g.,
SV27DC105405ASAA, SV27DC305405ASAA.
Note: Specify voltage when ordering. ** Insert voltage code: “W” = 24 volts DC; “Z” = 110-120 volts AC, 50/60 Hz; e.g., RC404-09W, RC208-09Z.
Sensing Valves Series SV27
Series SV27
Pressure Controlled
Air Dump / Release
(1 pages)
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