Is P05 the alternative solution you need?

P05 DN100 PN16 stainless steel solenoid valve

P05 DN100 PN16 stainless steel solenoid valve

P05 DN50 PN16 stainless steel solenoid valve with ATEX Exd pilot

P05 DN50 PN16 stainless steel solenoid valve with ATEX Exd pilot


When considering the choice of automated isolation valves, flow rates, pressures, media compatibility and other factors are important but the crucial element is the method of control to allow the automation intent and what happens if something fails. There is an increasing trend for fail-closed valves being specified which is easily achieved with pneumatic spring return actuators but when electrical actuation is required this can be more problematic.

Small bore ball valves with electric spring return actuators are readily available but as the valve size increases, the available actuator choices dwindle and the price escalates rapidly. There are many instances where electrical control is required and the alternative would often be to use a conventional solenoid valve that has the benefit of closing as soon as the energising voltage is removed.

These valves are more restrictive to flow when compared to ball valves size for size, due to the globe valve design that requires the flow direction to change sequentially through 90, 180 and another 90 before reaching the outlet of the valve. Solenoid valves are available in larger bore sizes but due to the flow restriction, may require increases to pipework diameter to achieve the design flow and the user has to bear the increased cost for what is effectively an oversized valve.

Recognising this conundrum and working with our supply partners, Measure Monitor Control took a proven axial control valve from Z-Tide and combined it with a high performance Nadi pilot solenoid to produce the P05 series of pilot operated solenoid valves. The axial flow design offers a significant increase of flow compared to globe designs with the benefit that as the pilot solenoid valve closes when power is removed, the axial valve also closes and is held closed by the inlet pressure.

By using the Nadi solenoid valve, we can offer a combined solenoid valve assembly that is rated to 16bar in sizes from 2 ̋ to 12 ̋ with options to increase the pressure capability if needed for higher rated flanged bodies. The Nadi solenoid valves also offer hazardous area compliance with certification choices of ATEX, IECEx or EAC CU TR if required.

The axial valve is most often supplied in bronze or stainless steel bodies and the stainless steel axial valve has the option for WRAS approved seals where the valve needs to be used on potable water. For this duty, the Nadi pilot solenoid can be provided with FDA approved EPDM elastomers.

Unique to this valve is this flexibility of specification using the Nadi pilot solenoids. By fitting a manual reset solenoid valve instead of the standard unit, we can prevent the valve opening without direct user input where safety considerations require it.

The P05 is a true alternative to spring return motorised ball valves and can offer additional features such as manual reset to simplify automation and safety requirements.

Tel: 01443 772500
Email: sales@measuremonitorcontrol.com
Web: www.measuremonitorcontrol.com


Published: 29th April 2019

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