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  • ASCO-551-spool-valve-with-lever--11297832
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  • asco-series-551-brass--5120194
  • asco-series-551-EU--5120198
  • asco-series-551-mono--5120094
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  • asco-series-551-namur--5120192
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ASCO™ 551 Solenoid Spool Valve

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.

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8551A001

ASCO 8551A001 Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
No Image Available For Product
8551A002

ASCO 8551A002 Solenoid Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
Aluminum;Light AlloyFT
No Image Available For Product
8551A005

ASCO 8551A005 Solenoid Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
0.86Aluminum;Light AlloyFT
No Image Available For Product
8551A017

ASCO 8551A017 Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
No Image Available For Product
8551A018

ASCO 8551A018 Solenoid Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
0.86Aluminum;Light AlloyFT
No Image Available For Product
8551B301

ASCO 8551B301 Solenoid Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
Aluminum;Light AlloyH|F
No Image Available For Product
8551B302

ASCO 8551B302 Solenoid Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
10AluminumH
No Image Available For Product
8551B303

ASCO 8551B303 Solenoid Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
10BrassH
No Image Available For Product
8551B304

ASCO 8551B304 Solenoid Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
11.7BrassH
No Image Available For Product
8551B305

ASCO 8551B305 Solenoid Spool Valve

ActuationFlow (Cv)Body MaterialCertificationsCoil Class
AluminumH