551-552-553 Series (NAMUR Intergrated Pilot, CNOMO Size 15, Air Pneumatic) – 3/2 Normally Closed – 5/2 – 5/3
Asco Joucomatic Numatics Aluminium Solenoid/Spool Valve
These 551-552-553 series of valves have threaded ports connections and NUMAR interfaces. They can also be adapted for 3/2 NC or 5/2 functions for controlling double-acting and single-acting actuators.
Size : 1/4″ to 1/2″
Fluids : Air – Inert Gas
Standard Seal : NBR (Nitrile) + PUR (Polyurethane)
Operation : Pilot Operated or Air Operated
551-552-553 Series (15/16) – 3/2 Normally Closed
Asco Joucomatic Numatics Aluminium Spool Type Solenoid Valve
These 551-552-553 spool valves can be externally piloted (external air pilot supply) to convert valve to zero minimum operation by flipping a gasket.
Size : 1/4″ to 1/2″
Fluids : Air – Inert Gas
Standard Seal : NBR (Nitrile) + PUR (Polyurethane)
Operation : Pilot Operated (Single/Dual Solenoid) – Mono/Bistable Function

551-552-553 Series – 3/2 Normally Closed
551-553 Series – 3/2 Normally Closed
Asco Joucomatic Numatics Stainless Steel Spool Type Solenoid Valve
These 551 spool valves can be supplied with a moulded IP65 (SC) enclosure or with a range of NEMA, ATEX/IECEx enclosures.
Size : 1/4″ to 1/2″
Fluids : Air – Inert Gas
Standard Seal : VMQ (Silicone) + PUR (Polyurethane)
Operation : Pilot Operated (Single/Dual Solenoid) – Mono/Bistable Function

316 Series – 3/2 Normally Closed/Open
387 Series – 3/2 Normally Closed/Open
Asco Joucomatic Numatics Brass Solenoid Valve
Coaxial-type solenoid operated valves designed for high flow rates with low-pressure loss. Compatible with viscous or abrasive gases and liquids.
Size : 3/8″ to 1″
Fluids : Air & Gas Groups 1-2 – Water, Oil & Liquids Groups 1-2
Standard Seal : FPM (Fluoroelastomer) – PTFE
Operation : Direct Operated – Coaxial
327 Series – 3/2 Universal
Asco Joucomatic Numatics Brass/Stainless Steel Solenoid Valve
These balanced poppet-type solenoid valves are recommended for applications with high flow rates, wide pressure ranges and no minimum operating pressure.
Size : 1/4″ to 1/2″
Fluids : Air – Inert Gas – Water – Oil
Standard Seal : FPM (Fluoroelastomer) | (F)VMQ ((Fluoro)Silicone) | NBR (Nitrile)
Operation : Direct Operated