Exloc Instruments: your one-stop-shop for instruments and electrical equipment for use in hazardous classified locations.
Saving you time & money solving challenging problems!
Saving you time & money solving challenging problems!
Solenoid Valves for Pneumatic Controls
Provide Safe Operation in Hazardous Locations and Extreme Environments
Provide Safe Operation in Hazardous Locations and Extreme Environments
- Intrinsically safe, non-incendive, flameproof, and general purpose versions
- Sizes from 1/8" to 1"
- 2, 3 & 4-way functionality
- Single and dual solenoid actuators
- Low power consumption
- Optional materials of construction
- NAMUR, CNOMO, manifold, body ported and remote mounting options
Our spool design features low-friction operation within annular seals. It has a self-cleaning wiping action to minimize the effects of potentially contaminated air. This contrasts with other competitive designs which have delicate sealing surfaces, plus many intricate parts. Size for size, this efficient design makes for some of the highest flow ratings in the industry.
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Flow Capacity
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Nominal Valve Size
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1/8"
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1/4"
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1/2"
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1"
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Cv Factor
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0.4
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1.2
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3.5
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10
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Flow Rate*
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litres/min.
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382
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1,246
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3,534
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10,384
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s.c.f.m.
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13.5
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44
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125
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367
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*at 90psig air supply, and 15psig pressure drop across the valve
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Mechanical Specifications (typical)
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| Working Pressure | Direct-acting models: 0-120 psig Pilot-operated models: 45-120 psig |
| Ambient Temperature | -4 to +176°F / -20 to +80°C except where upper limit is dictated by hazardous location certification. |
| Body Material | Standard: black anodized aluminum alloy. Options: 316 stainless steel, brass. |
| Spool Material | Standard: hard anodized aluminum, PTFE impregnated. Option: 316 stainless steel. |
| Seal Material | Standard: nitrile. Options: silicon, fluorosilicon, natural rubber or styrene for low temperature operation down to -40°F (-40°C), viton for high temperature operation on certain models. |
| Spacer Material | Glass filled acetal |
| Spring Material | Stainless steel |
| Pilot Jet Material | Standard: brass; Option: stainless steel |
| Pipe Threads | NPT, BSP |
| Coil Housing | Rated NEMA4X / IP65, materials application dependent. NEMA7 / IP66 options available in some cases. |
| Cable Entry | Standard: M20 thread. Options: 1/2" NPT thread, or 1/2" NPT adapter to fit M20 thread on terminal box type coils. |
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Electrical Specifications (typical)
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| Standard Operating Voltages |
24, 110, 230V AC 50/60Hz; 24V DC Others available by request. |
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| Voltage Tolerance | +/-10% | |
| Coil Rating | Class F rated coil with Class H rated wire | |
| Power Consumption | 0.4 to 5W, application dependent. | |
| Wire Termination | Flying leads, screw terminals, plug & socket (may be application specific). | |
| Hazardous Location Certifications (Confirm for specific valve configurations) |
North America
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Global
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| FM: intrinsic safety, CFM: intrinsic safety. |
ATEX: EEx ia, EEx ia (10mA), EEx d, EEx m, EEx me, EEx nA CEPEL INMETRO: Ex d IECEx: Ex d, Ex ia SAA: intrinsic safety GOST: Ex d |
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Coil Assemblies
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| Coil assemblies are available to meet different applications. However, valves for use in hazardous locations usually require a specific coil assembly chosen during the approval or certification proces and this will often dictate the operating voltage. The most common choices are listed below — consult Exloc for others. | |||
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Code
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Application
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Style
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Alternative
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P
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General purpose, plug & socket
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1
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B
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General purpose, terminal box
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4
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Style 3, stainless steel
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U
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Intrinsically safe, FM (USA)
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4
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Style 3, stainless steel
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V
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Intrinsically safe, CFM (Canada)
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4
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A
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Intrinsically safe, ATEX EEx ia
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4
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Style 3, stainless steel
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W
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Intrinsically safe, SAA (Australia) EEx ia
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4
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D
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Flameproof, Ex d
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3
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9
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Encapsulated, ATEX EEx m, EEx me
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2
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N
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Non Incendive (Type N), ATEX EEx nA
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4
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Style 3, stainless steel
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Zinc alloy with epoxy coating.
GRP connector.
Rated IP65/NEMA4.
Zinc alloy with epoxy coating. Integral cable.
Rated IP65/NEMA4.
Stainless steel with epoxy coating. Threaded entry.
Rated IP66/NEMA4X.
Zinc alloy with epoxy coating. Threaded entry.
Rated IP65/NEMA4.
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Valve Funcionality
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U.S.
Convention |
Euro
Convention |
Description
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2-WAY
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2/2
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Two port, two position. Simple on-off function. This is not a common requirement in pneumatic control applications. If it is required, select a 3/2 valve type and plug the exhaust port. |
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3-WAY
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3/2
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Three port, two position. Most commonly used with single-acting spring-return cylinders to alternatively apply and exhaust air pressure. |
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4-WAY
2-position |
5/2
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Five port, two position. Used with double-acting cylinders required to take up one of two extremes of travel under air pressure. |
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4-WAY
3-position |
5/3
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Five port, three position. Used with double-acting cylinders required to be driven to one of two extremes of travel or be held in mid-position. There are two sub-designs in this category which permit exhaust air to be either held or released in mid-position. |
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Valve Selection Guide & Ordering Codes
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