Ross Controls SENSING VALVES SERIES SV27 - Manual

Series SV27 Sensing Valves
2/2 & 3/2 Normally Closed
with Position & State Sensing Feedback
for Category 2 Safety Applications
Air Dump/Release
STANDARD SPECIFICATIONS:
Pilot Solenoid: Rated for continuous duty.
Standard Voltages: 100–110 volts 50 Hz;
100–120 volts 60 Hz; 24, 110 volts DC.
Other voltages available.
Power Consumption:
87 VA inrush, 30 VA holding
on 50 or 60 Hz; 14 watts on DC.
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: 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.
NOTE: Electrical life of switch varies with conditions
and voltage; rated in excess of 15 million cycles.
ROSS’ new Series SV27 Sensing Valves, based upon the proven
Series 27 valve family, combine the tough, dirt tolerant characteristics
of poppet technology with sensing for actual internal position and state.
Electrical feedback is provided via a positively-driven, safety-rated
DPST (Double-Pole Single-Throw) switch with both normally open
(NO) and normally closed (NC) contacts. *For 3/4 and 1
¼ bodies, the
DPST switch is actuated whenever the valve is not in the normal home
position. For size 2 body, the DPST switch is only actuated whenever
the valve IS in the normal home position.
An optional visual pressure indicator (988A30) or pressure switch
kit (608A86) can be installed into the 1/8 NPT pressure verifi cation
port (PV) for verifi cation of pressure release.
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FEATURES:
Solenoid Pilot Controlled
Pressure Controlled
2/2 3/2
2/2 3/2
GENERAL:
3/2 Sensing Valve
(solenoid model shown)
• Solenoid pilot and pressure controlled versions
• Senses poppet position & state
• Electrical feedback via DPST switch (Double-Pole Single-Throw)
• Directly operated safety-rated force-guided status switch (DPST)
• Positive-break on 3/4 and 1
¼ body valves
• Poppet construction for near zero leakage & high dirt tolerance
• Applications include Air Dump and Trapped-Pressure Release
EN 954-1, ISO 13849-1,
& AS4024-1
(3/4 bodies only,
other sizes approval pending)
Schematics shown for 3/4 and 1 ¼ bodies.*