Ningbo Fly Automation Co., Limited
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1. Product Name: NF8551B401MO 8551B401 ASCO 8551 Series 1/4 Inch Aluminum Explosion Proof Single/dual Solenoid Valve
2. After-sale service
We can provide a series of after-sale service, such as product introduction, mounting, debugging, technical support and so on.
3. Drawing
4. Product show
5. Construction
6. Electrical
7. Nominal Ambient Temp. Ranges
8. Features
• Compact Spool Valve convertible from 3/2 to 5/2 with flow plates
• Mount directly to actuators with NAMUR interface per VDI/VDE 3845
• Single and dual solenoid constructions available
• Integral Breather Block vents to spring side of actuator to exhaust, preventing corrosion of the actuator
• Unique design combines hard T-seals and flexible o-rings, provides bubble-tight shutoff, resistance to dirt and multimillion cycle life controlling air or inert gas
• Low Power and Intrinsically Safe construction available See Special Service Pilot Valve Section for details
9. Approvals
UL/CSA approvals for aluminum constructions pending. EF and EV are UL listed solenoids. CSA certified. Meet applicable CE directives.
SIL 3 capable per IEC 61508 on normally closed single solenoid. Third party certification provided by EXIDA. Refer to Engineering Section for details.
ATEX/IECEx certified with prefix “EV” as listed. Refer to Optional Features Electrical Section for details.
10. Solenoid Enclosures
Standard: Watertight, Types 1, 2, 3, 3S, 4, and 4X.
Optional: Explosionproof and Watertight, Types 3, 3S, 4, 4X, 6, 6P, 7, and 9. (To order, add prefix “EF” or (“EV” for stainless steel) to catalog number.) See Optional Features Section for other available options.
1. Product Name: NF8551B401MO 8551B401 ASCO 8551 Series 1/4 Inch Aluminum Explosion Proof Single/dual Solenoid Valve
2. After-sale service
We can provide a series of after-sale service, such as product introduction, mounting, debugging, technical support and so on.
3. Drawing
4. Product show
5. Construction
6. Electrical
7. Nominal Ambient Temp. Ranges
8. Features
• Compact Spool Valve convertible from 3/2 to 5/2 with flow plates
• Mount directly to actuators with NAMUR interface per VDI/VDE 3845
• Single and dual solenoid constructions available
• Integral Breather Block vents to spring side of actuator to exhaust, preventing corrosion of the actuator
• Unique design combines hard T-seals and flexible o-rings, provides bubble-tight shutoff, resistance to dirt and multimillion cycle life controlling air or inert gas
• Low Power and Intrinsically Safe construction available See Special Service Pilot Valve Section for details
9. Approvals
UL/CSA approvals for aluminum constructions pending. EF and EV are UL listed solenoids. CSA certified. Meet applicable CE directives.
SIL 3 capable per IEC 61508 on normally closed single solenoid. Third party certification provided by EXIDA. Refer to Engineering Section for details.
ATEX/IECEx certified with prefix “EV” as listed. Refer to Optional Features Electrical Section for details.
10. Solenoid Enclosures
Standard: Watertight, Types 1, 2, 3, 3S, 4, and 4X.
Optional: Explosionproof and Watertight, Types 3, 3S, 4, 4X, 6, 6P, 7, and 9. (To order, add prefix “EF” or (“EV” for stainless steel) to catalog number.) See Optional Features Section for other available options.
