Rotex solenoid valve Engineered Valves INTRINSICALLY SAFE SOLENOID VALVE WITH BOOSTER CIRCUIT
INTRINSICALLY SAFE SOLENOID VALVE :
By lowering the power Consumption below the ignition energy level the Solenoid valve is inhibited from being the cause of an explosion. Thus the term Intrinsically Safe Solenoid Valve.
Intrinsically Safe Solenoid valve offers the highest protection available for product installed in Hazardous / Explosive environment. With protection class Ex ia, IIC, T6 this Solenoid valve can be installed in application / equipment falling under zone 0, zone1 and zone 2. (Ex ia certified equipment is only permitted to be used in zone 0 area).
It is worth remembering that Intrinsic Safety is for a complete circuit, of which solenoid valve is one component along with a certified Barrier. In absence of the Barrier, the valve is merely a low power consuming device, which then depending upon the type of enclosure used may not be suitable for installing in Hazardous area.
All of ROTEX Intrinsically safe Solenoid solutions are certified Ex ia IIC, T6.
ROTEX offers two types of solutions :
•Booster circuit based Intrinsic safety.
•Low Power Intrinsic safety.
Booster circuit design (Type 62, 63, 64) :
Intrinsically safe Solenoid uses a capacitor based storage circuit, which stores the limited power coming from the Barrier before firing it across the Winding. The circuit then continues to hold the plunger with the Barrier power. With this technique, the IS Solenoid can replace an existing solenoid valve having general purpose weather proof or Explosion proof Solenoid.
This option is practically available to most solenoid valve with solenoid size 14.
The ON time delay of 1.5 second needs to be accounted for while calculating system response time, which may not be suitable for certain applications.This solenoid can certainly used for shut down/ trip circuit applications.
In view of this, ROTEX also offers another solution with faster response, typically called for in process Industry, especially in fast switching equipment.
ROTEX intrinsic safe coil with circuit can operate most of the solenoid valve having solenoid size 14 without affecting any of its parameter.
INTRINSICALLY SAFE SOLENOID VALVE EX ia IIC, T6 :
FEATURES :
•Aluminium / Stainless Steel Cast Enclosure.
•Interchangeable to weather proof and explosion proof solenoid size 14.
•Response on time < 1.5 sec.
•Compatible to most available barrier.
•Dual protection Ex ia and Ex d
•Suitable to operate any of the valve having solenoid size 14 (except 30308, 30316, 30318, 30333, 30334).
SPECIFICATIONS :
OPERATING PARAMETER :
Minimum Operating Voltage 14 V DC
Minimum Operating Current 14 mA
Minimum Operating Power 0.14 W
Inductance 0
Capacitance 0
ENTRY PARAMETER :
Voltage (DC)
30
28
24
15
Current (mA)
90
110
170
300
Power (W)
0.75
0.75
0.75
0.75
Ambient Temperature : - 40 °C to 75 °C
Media:
Air, Inert Gases, Water, Oil.
SPECIFICATIONS :
Ex ia IIC, T6
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