Ross Controls CATEGORY 2 User Manual
Sensing Valves Series SV27
Pressure Controlled
Series SV27
2/2 Valves
Port PV
(pressure
verification)
3/2 Valves
Port PV
(pressure
verification)
B
1/4 Signal Port
1/4 Signal Port
A
2X O 0.34 (8.0)
on opposite site]
PV
12
3
5-pin M12
connector
2X O 0.34 (8.0)
Por t 3
(exhaust)
Port 1(inlet)
[Port 2 (outlet)
on
opposite site)
5-pin M12
connector
Port 1(inlet)
[Port 2 (outlet)
2
1
1/4 Signal Port
]
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.
1/4 Signal Port
C
Port Valve Model Avg. C
Size Number
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)
Port Size Valve Model Avg. CV Dimensions inches (mm) Weight
1, 2 3 Number
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
2 2½
2½ 2½
* NPT port threads. For BSPP threads, replace “N” in the model number with a “D”, e.g.,
SV27NC309805ASAA 68 70 8.7 (219) 11.8 (300) 6.4 (161) 17.2 (7.8)
SV27NC309905ASAA 70 70 8.7 (219) 11.8 (300) 6.4 (161) 17.2 (7.8)
SV27NC309955ASAA 70 71 8.7 (219) 11.8 (300) 6.4 (161) 17.2 (7.8)
Air Dump / Release
PV
2
12
1
Dimensions inches (mm) Weight
* 1 - 2 A B C lb (kg)
* 1 - 2 2-3 A B C lb (kg)
SV27DC105405ASAA, SV27DC305405ASAA.
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
98.15 (n
: 7360); DC (obtained by monitoring safety switch
op
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.
V
-7
; MTTFd:
Air Entry Packages with 3/2 Normally Closed Sensing Valve
• 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
Model Air Entry Port Size Avg. C
Number* Type 1-2 3 1-2 2-3 Length Width Depth
Category 2 with Modular L-O-X
RC208-09
RC208L-09
** FR 1/2 1/2 6.3 9.2 14.8 (375) 11.0 (279) 6.6 (168)
** 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
RC208-06
RC212-06
RC216-06
RC208L-06
RC212L-06
RC216L-06
* NPT pressure port threads. M12 connectors available, consult ROSS.
The standard Air Entry Packages are supplied with metal bowl and auto drain.
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.
**
FR 1/2 1/2 6.3 9.2 23.0 (585) 12.8 (326) 6.7 (171)
**
FR 3/4 3/4 7.7 11 23.0 (585) 12.8 (326) 6.7 (171)
**
FR 1 1 8.0 12 28.0 (712) 17.0 (432) 9.5 (242)
** FRL 1/2 1/2 6.3 9.2 23.0 (585) 12.8 (326) 6.7 (171)
** FRL 3/4 3/4 7.7 11 23.0 (585) 12.8 (326) 6.7 (171)
** FRL 1 1 8.0 12 31.8 (808) 17.0 (432) 9.5 (242)
®
and SV27 Sensing Valve
®
and SV27 Sensing Valve
IMPORTANT NOTE: Please read carefully and thoroughly all of the CAUTIONS, WARNINGS on the inside back cover.
www.rosscontrols.com
Dimensions (inches/mm)
V
83
)
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