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ASCO 551 Series Solenoid Spool Valve
Brand: ASCO
The ASCO Series 551, also known as 8551, is a line of 1/4" 3-way and 4-way compact solenoid spool valves that are ideal for controlling air or inert gas in challenging environments.
The valves’ unique design combines hard T-seals and flexible O-rings that provide bubble-tight shutoff, dirt resistance, and multi-million cycle reliability.
The 551 Series comes in anodized aluminum, brass, and stainless steel bodies with ¼-inch NPT and BSP connections.
It is suitable for the harsh conditions found in chemicals, refining, food & beverage applications and life science processing.
Features- Available in two versions, mounted directly to actuators with NAMUR interface per VDI/VDE 3845 or threaded to mount on the pipe
- Valve body in Aluminum, Brass, or Stainless steel 316L
- Exhaust ports are pipeable, providing better protection against harsh environments
- DIN, watertight, and explosion-proof solenoids are available for use in mission-critical and hazardous areas
- Low-power constructions are ideal for remote and alternative power locations
- Integral breather block vents to spring side of the actuator to exhaust, preventing corrosion
- Single- and dual-solenoid constructions are available that mount in any position
- Global Ex approvals; ATEX, IEC EX, NEPSI, CUTR, KOSHA, UL, CSA, InMetro
- All ports of NAMUR on the same side for a better water , DUST protection
- Available will all Explosion proof solenoids: Ex d, Ex mb, Ex ia/Ib, Ex e mb, NEMA
- Available in an arctic version, suitable for use in temperatures as low as -60°C
- Compact spool valve convertible from 3/2 to 5/2 with a single flow plate design (551 Series only)
Displaying prices & availability for Ohio, United States in USD. Change location.
Models matching criteria: 4
ASCO RED HAT SOLENOID
TYPE & OPERATION : 3 OR 4 WAY, SINGLE COIL
SIZE / ORIFICE : 1/4" NPT / 1/4"
FLOW : Cv 0.86
PRESSURE (MIN/MAX PSI): 30/150, AIR
APPROVALS : UL, CSA
VOLTAGE : 120V/60HZ
BODY MATERIAL : ALUMINUM
OPTIONAL FEATURES : EXPLOSION PROOF, SCREW TYPE, MANUAL OPERATOR, NAMUR MOUNT
6 In Stock
$257.00 USD
$20.00 Shipping
ASCO RED HAT SOLENOID
TYPE & OPERATION : 3 OR 4 WAY, SINGLE COIL
SIZE / ORIFICE : 1/4" NPT / 1/4"
FLOW : Cv 0.86
PRESSURE (MIN/MAX PSI): 30/150
APPROVALS : GENERAL PURPOSE
VOLTAGE : 120/60 110/50 AC
BODY MATERIAL : ALUMINUM
OPTIONAL FEATURES : WEATHERTIGHT, MANUAL SCREW TYPE OPERATOR, NAMUR MOUNT
4 In Stock
$231.00 USD
$20.00 Shipping
ASCO RED HAT SOLENOID
TYPE & OPERATION : 3 OR 4 WAY, SINGLE COIL
SIZE / ORIFICE : 1/4" NPT / 1/4"
FLOW : Cv 0.86
PRESSURE (MIN/MAX PSI): 30/150, AIR
APPROVALS : UR, CSA
VOLTAGE : 24VDC
BODY MATERIAL : ALUMINUM
OPTIONAL FEATURES : EXPLOSION PROOF, SCREW TYPE
MANUAL OPERATOR, NAMUR MOUNT
3 In Stock
$257.00 USD
$20.00 Shipping
ASCO RED HAT SOLENOID
TYPE & OPERATION : 3 OR 4 WAY, DUAL COIL
SIZE / ORIFICE : 1/4" NPT / 1/4"
FLOW : Cv 0.70
PRESSURE (MIN/MAX PSI): 30/150, AIR
APPROVALS : UR, CSA
VOLTAGE : 120/60,110/50
BODY MATERIAL : ALUMINUM
OPTIONAL FEATURES : EXPLOSION PROOF, SCREW TYPE, MANUAL OPERATOR, NAMUR MOUNT
Out of Stock
$526.00 USD
$20.00 Shipping
Specifications
Brand
Body Material
- Brass, Stainless Steel, Aluminum
Flow
- From 0.5 Cv to 1.0 Cv, from .43 to .86 Kv
Function
- 3-Way - 3/2 Normally Closed, 4-Way - 5/2, 4-Way - 5/3 - Closed Center, 4-Way - 5/3 - Open Center
Maximum Differential, Maximum Operating Pressure
- Vacuum to 150 psig
Media
- Air, Inert Gas
Operating Environment
- Corrosive, Hazardous, Indoor, Outdoor
Pipe / Port Size
- 1/4
Port Type
- G ISO 228 / 1-G BSPP, Female NPT
Standards & Regulations
- ATEX Zone 1-21, ATEX Zone 2-22, Class I, Div. 1, Class II, Div. 1, SIL, Typical 1, Typical 2, Typical 3, Typical 3S, Typical 4, Typical 4X, Typical 6, Typical 6P, Typical 7, Typical 9
Valve Actuation
- Solenoid - Air Pilot
Voltage
- 24 AC, 110 AC, 120 AC, 220 AC, 480 AC, 6 DC, 12 DC, 24 DC, 120 DC, 240 DC / 50, 60
Documentation
Product Manuals
Brochure
Catalogs
- Catalog Solenoid Spool Valves Series 551 Pdf pdf 351 KB
- European Catalog Applications Process Industry Product Inde Pdf pdf 4.6 MB
- European Catalog Applications Process Industry Quick Select Pdf pdf 5.2 MB
- European Catalog Direct Pilot Operated Complete ASCO Pdf pdf 11.7 MB
- European Catalog Explosionproof Equipment Contents Index AS Pdf pdf 1.7 MB
- European Catalog Explosionproof Equipment Solenoid Detector Pdf pdf 4.7 MB
- European Catalog Series 551 553 Magnetventile Pdf pdf 672 KB
- European Catalog Solenoid Valves Product Index 4 2 5 2 5 3 Pdf pdf 955 KB
- European Catalog Solenoid Valves Spool Type 551 553 ASCO Pdf pdf 1.6 MB
- European Catalog Spool Valves 551 553 ASCO Pdf pdf 1.7 MB
- European Catalog Spool Valves Pilot Operated 551 ASCO Pdf pdf 490 KB
- European Catalog Spool Valves Pilot Operated Stainless Stee Pdf pdf 585 KB
- European Catalog Spool Valves Pilot or Air Operated 551 553 Pdf pdf 1.9 MB
Document
- Certificate Series 551 553 Exida SIL Pdf pdf 426 KB
- European Certificate LCIE 02 ATEX 6252 X Pdf pdf 805 KB
- European Certificate LCIE 09 ATEX 3054 X Pdf pdf 1.1 MB
- European Certificate LCIE 10 ATEX 3043 X Pdf pdf 1.7 MB
- European Certificate LCIE 12 ATEX 3005 Pdf pdf 542 KB
- European Certificate Series 551 552 553 Ineris 03 ATEX 3030 Pdf pdf 493 KB
- European Certificate Series 551 Ineris 03 ATEX 0219 Pdf pdf 4.7 MB