ASCO

ASCO - Electrical controlled valve in Stainless Steel

Valve 551 in acid resistant steel, AISI 316L, with 3/2 or 5/2 function. In-line version for flow rates up to 860 l/min or NAMUR version for 700 l/min.

The valve is TÜV certified and is very suitable for tough environments since the whole series has environmental protection, meaning that all supply and exhaust air passes via the ports, which in turn means that any contamination in the surroundings cannot enter and cause damage to the internal parts of the valve. Environmental protection also makes the valve very suitable for clean room environments such as within the medical or food industries, since all exhaust can be led away. The temperature range for the valve lies between –40 °C and +60 °C, and it is available with several types of coil, both standard and ATEX class, as well as most voltage variants.

If the valve is to be used to control low operating pressure, simply turn round a seal in the valve and pressurize the pilot separately via the extra port to the pilot valve.

  • Operational down to -40 °C
  • Function 3/2-5/2
  • Also with NAMUR interface
  • Produced in Stainless Steel for aggressive environments

Selected variant

Avaible in several variants

Selected variant

Specifications

Approvals IEC, TÜV
Differential Pressure Max 10
Differential Pressure Min 0
Flow Factor / Flow Coefficient 12.5
Flow Max l/min Double 860
IP Class IP65
Manual operation Yes
Max. pressure 10
Power Consumption 11.2
Short Circuit Protection Yes
Temperature range from -40
Temperature range to 80
Throughput 6
Weight 1.19
Voltage DC 24

Measurements and connections

Technical illustrations

Product description

Valve 551 in acid resistant steel, AISI 316L, with 3/2 or 5/2 function. In-line version for flow rates up to 860 l/min or NAMUR version for 700 l/min.

The valve is TÜV certified and is very suitable for tough environments since the whole series has environmental protection, meaning that all supply and exhaust air passes via the ports, which in turn means that any contamination in the surroundings cannot enter and cause damage to the internal parts of the valve. Environmental protection also makes the valve very suitable for clean room environments such as within the medical or food industries, since all exhaust can be led away. The temperature range for the valve lies between –40 °C and +60 °C, and it is available with several types of coil, both standard and ATEX class, as well as most voltage variants.

If the valve is to be used to control low operating pressure, simply turn round a seal in the valve and pressurize the pilot separately via the extra port to the pilot valve.

Accessories

Related products

tekox
Blog

Tekox Terminal Strips Safety Blocks and Porcelain Blocks

Great electrical installations don't fail because of the major components. They fail because of the small ones that didn't get enough attention.
It's easy to focus on the big-ticket items during specification — and let the terminal blocks become an afterthought. But inferior connection components have a habit of making themselves known over time. Loose connections, degraded insulation, premature failure. The kind of faults that are frustrating to trace and expensive to fix.
Tekox engineer their terminal strips, safety blocks, insulated strips, and porcelain blocks to the standards your installations deserve. Available now from Demesne Electrical — get in touch and we'll show you the range.

PPVK Series
Blog

Conta-Clip Push-in PPVK Distribution Terminals

Conta-Clip PPVK push-in potential distribution terminals simplify control cabinet wiring with tool-free connections, compact DIN rail mounting, and reliable current distribution up to 41A.

Energy Storage Systems (ESS):
Blog

Electrical Protection in Energy Storage Systems (ESS): Keys to a Safe Installation

The PMX fuse holder range is compact, halogen-free, and manufactured in Europe for fast availability. Available in 10×38, 14×51, and 22×58 sizes with IEC, UL, and CSA approvals, they feature silver-plated contacts, IP20 touch-safe design, and optional blown fuse indicators — giving panel builders reliable, safe, and flexible protection.

wayne moody
Company News

Wayne Moody Joins OEM | Demesne Electrical

We’re excited to share some great news at Demesne Electrical. Wayne Moody has joined our team, bringing with him years of experience and a clear vision for the future. His focus will be on building on our strong reputation here in Ireland and driving our growth across Europe.

DF electrci 485121
Blog

PMX Fuse Holder Range – Compact, Reliable, Built for Demanding Panels

The PMX fuse holder range is compact, halogen-free, and manufactured in Europe for fast availability. Available in 10×38, 14×51, and 22×58 sizes with IEC, UL, and CSA approvals, they feature silver-plated contacts, IP20 touch-safe design, and optional blown fuse indicators — giving panel builders reliable, safe, and flexible protection.

stego loop
Blog

Stego Enclosure Heaters with Loop

STEGO’s new loop enclosure heaters are a smart fix for condensation in control cabinets. They heat evenly, install fast with no tools, and come in a range of sizes from 10 to 150 W. They're tough, touch-safe, and even have a built-in thermostat option—everything you need to protect your gear and keep things running smoothly.

My favourites Articles Manual operation Voltage AC Voltage DC Price
Yes
24
230
24
24
230

Selected variant

Select a variant in the list

Customer support
Our customer support team answers all kinds of questions.
+35314047700
Send e-mail
Do you need help?

Please login or continue as a guest

To get the best deals
Login | Create account

You have 0 articles in cart