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Series 551 552 553 - Pilot Operated or Air Operated Spool Valve

Pilot Operated 5/2 Way

The ASCO Series 551, 552, 553 pilot operated solenoid valves with NAMUR interface are reliable and durable control solutions for a variety of industrial and commercial applications. These valves are available in a range of configurations and are certified for use up to SIL 4, making them suitable for use in safety-critical systems. They have TÜV certified IEC 61508 Functional Safety data and offer environmental protection against the ingress of liquids, dust, and other foreign matter. This makes them particularly well-suited for use in sensitive areas such as clean rooms and in the pharmaceutical and food processing sectors.

The ASCO pilot operated valves are able to control double-acting and single-acting actuators and are be adapted 5/2 function. They also feature a NAMUR interface that helps to prevent the actuator from breathing in air from the environment, which can be a potential source of failure. Overall, the ASCO Series 551, 552, 553 pilot operated 5/2 solenoid valves are reliable and effective control solutions for a range of applications.


Showing 1–30 of 909 results

Manufacturer
ASCO
Port Connection
G1/2
G1/4
G3/8
Working Pressure Max
8 Bar
10 Bar
Working Pressure Min
0 Bar
2 Bar
ASCO 8551A119 – G1/4, 5/2 Brass, Pilot Air Operated – Spring Return (Monostable)
Part Number:
8551A119
Price:
£275.98
PDF:
ASCO 8551A120 – G1/4, 5/2 Brass, Pilot Air Operated and Return (Bistable)
Part Number:
8551A120
Price:
£261.54
PDF:
ASCO 8551A121 – G1/4, 5/2 Stainless Steel, Pilot Air Operated – Spring Return (Monostable)
Part Number:
8551A121
Price:
£423.01
PDF:
ASCO 8551A121SL – G1/4, 5/2 Stainless Steel, Pilot Air Operated – Spring Return (Monostable)
Part Number:
8551A121SL
Price:
£491.27
PDF:
ASCO 8551A122 – G1/4, 5/2 Stainless Steel, Pilot Air Operated and Return (Bistable)
Part Number:
8551A122
Price:
£543.97
PDF:
ASCO 8553A121 – G1/2, 5/2 Stainless Steel, Pilot Air Operated – Spring Return (Monostable)
Part Number:
8553A121
Price:
£1,623.70
PDF:
ASCO 8553A122 – G1/2, 5/2 Stainless Steel, Pilot Air Operated and Return (Bistable)
Part Number:
8553A122
Price:
£1,913.00
PDF:
ASCO CFSC8551C517 – G1/4, CNOMO Size 15, 5/2 Solenoid, Air Piloted, Spring Return Valve (monostable)
Part Number:
CFSC8551C517
Price:
£152.35
PDF: