ASCO 327 Valves | Ex db Flameproof ATEX IECEx Solenoid Valves 3/2
ASCO 327 | Ex db Flameproof ATEX IECEx Solenoid Valves 3/2
eX Db Flameproof
ASCO 327 solenoid Valves
ASCO 327 Ex db Flameproof Valves are balanced poppet, high flow, direct operated, 1/4 and 1/2 tapped solenoid valves with NF or WSNF operators.
The flameproof valves are manufactured and certified for hazardous area use in potentially explosive atmospheres according to IEC 61508 Standard Functional Safety data and have SIL-3 capability with TÜV & Exida certification.
Hazardous Area Certifications & Compliances
- Categories 2-3 to ATEX Directive 2014/34/EU
- EU type examination certificate no.: LCIE 00 ATEX 6008 X
- IECEx Certificate of Conformity no.: IECEx LCI 07.0015X
- Stainless steel exhaust protector for valves certified to IEC 61508 Functional Safety, catalogue number: 131875-015 (NPT 1/4) or 131875-013 (NPT 1/2)
- Compliance with the Essential Health and Safety Requirements has been assured by the International and European Standards EN-IEC 60079-0, EN-IEC 60079-1 and EN-IEC 60079-31
- Compliant with UL and CSA (other local approvals available on request)
- IECEx / Ex II 2G Ex db IIC T6..T4 Gb
- IECEx / Ex II 2D Ex tb IIIC 85°C to 135°C Db IP66/67
ASCO – Hazardous Area Solenoid Valves With ATEX & IECEx Certification
eX Db Flameproof solenoid Valves
features
- Explosion proof enclosures, suitable for use in Zone 1, Zone 21, Zone 2 and Zone 22
- Manual Operators are optional including an under pressure removable type
- The solenoid valves are recommended for pilot applications with high flow, wide pressure ranges and no minimum operating pressure
- Special execution for low ambient and fluid temperatures
- Waterproof enclosure with embedded screw terminal coil according to protection class IP67, CEE-10
- The solenoid valves are able to be mounted in any position without it affecting the operation
Asco 327 VALVES specification
- Differential pressure: 0 – 10 bar [1 bar =100 kPa]
- Maximum viscosity: 65 cSt (mm²/s)
- Response time: < 100 ms
- Coil insulation class: H (5,7 mm), F (12 mm)
- Coil connection: Screw terminals
- Electrical safety: IEC 60335-1
- Standard voltages: DC (=) : 24V – 48V AC (~) : 24V – 48V – 115V – 230V / 50 Hz (Other voltages and 60 Hz on request. Contact us for details)
| Fluids | Temperature Range (TS) | Seal Materials (*) | |
| 5,7 mm | air, inert gas, water, oil | – 20°C to + 120°C | FPM (fluoroelastomer) |
| – 40°C to + 40°C | VMQ (silicone) | ||
| – 60°C to + 60°C | (F)VMQ ((fluoro)silicone) | ||
| 12 mm | air, inert gas | – 25°C to + 60°C | NBR (nitrile) |
| – 10°C to + 90°C | FPM (fluoroelastomer) | ||
| – 50°C to + 60°C | (F)VMQ ((fluoro)silicone) | ||
*It is important to ensure that the compatibility of the fluids in contact with the materials is verified.
asco 327 valve Materials
Materials in Contact With Fluids
| Body | Brass or stainless steel AISI 316L |
| Stem, core tube | Stainless steel |
| Core and plugnut | Stainless steel |
| Springs | Stainless steel |
| Seals & poppets | Ø 5,7 mm: FPM or VMQ or (F)VMQ Ø 12 mm: NBR or FPM or (F)VMQ |
| Rider ring | PTFE |
Other Materials
| Solenoid enclosure | NF: Chromated aluminium, epoxy coated WSNF: Stainless steel (AISI 316L) |
| Bonnet, cover screws | NF: Steel (zinc plated) WSNF: Stainless steel |
| Core tube | Stainless steel |
| Core & plugnut | Stainless steel |
asco 327 Series valves – dimensions
Type ASCO 327 3/2 Solenoid Valves
TYPE 01-02
Prefix “NF”, “WSNF” Solenoid
Aluminium, stainless steel
EN-IEC 60079-1 and EN-IEC 60079-31
II 2G Ex db IIC Gb, II 2D Ex tb IIIC Db IP66/67
ASCO 327 Valves | Ex db Flameproof ATEX IECEx Solenoid Valves 3/2
- 1/2 NPT
- Manual Operator Location
Flameproof | Encapsulated | Increased Safety | Intrinsically Safe | Non-Sparking Explosion Proof
ASCO 327 Valves | Exd Flameproof ATEX IECEx Solenoid Valves 3/2 | Data Sheet
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