Integrated Solenoid Valve (ISV) Spray System

Modern manufacturing processes demand rolled metal sheet products with minimal flatness deviations, including steel and aluminum sheets. The Integral Solenoid Valve Spray System provides precision cooling and lubrication for work rolls in hot and cold rolling mills. Through 45 years of evolution, the Integrated Solenoid Valve (ISV) spray system has become the industry standard for cooling, enabling rolled steel and aluminum mills to achieve optimal flatness.

Integrated Solenoid Valve Spray systems utilize precision-zoned cooling of work and backup rolls to optimize material flatness in the rolling mill.

The ISV Cooling Spray Bars for rolling mills apply coolant and correct flatness errors by modulating its application through individual valves, balancing the thermal profile of the work rolls. The system can include multiple spray headers positioned across the work roll width, each equipped with spray valves that dispense coolant through nozzles configured for each mill.

Primetals Technologies has the expertise to optimize spray patterns for individual mills, using advanced thermal modeling to maximize cooling efficiency. The Integrated Solenoid Valve system adjusts coolant levels via pulse width modulation, with each valve capable of dispensing ten coolant levels. This enables controlled cooling in each zone across the width of the sheet. The ISV Cooling Spray Bars for Rolling Mills system connects to the mill’s active flatness control to deliver coolant precisely where needed for flatness deviations. Valves are flow-optimized to minimize pressure drop, reducing stress on the coolant system and enhancing reliability.

There are three different types of valves within the Integrated Solenoid Valve Spray System family:

Original Integrated Solenoid Valve

This is a 52 mm valve featuring a pneumatically actuated Viton diaphragm. Compatible with all coolant types and highly resistant to contaminants and corrosion, this valve ensures reliable operation in the harshest mill environments.

Integrated Solenoid Valve Electric Compact

This fully electrically operated valve is tailored for narrow 26 mm zone pitching and dual-row applications. Individual control of each valve allows for up to 120 flow levels per zone, enhancing control for optimal product flatness.

Integrated Solenoid Valve Electric

This is a 52 mm fully electrically operated valve, ideal for meeting the growing cooling demands of modern high-power rolling mills. It can work in a hybrid zone configuration alongside the Integrated Solenoid Valve Electric Compact, providing a cost-effective solution for finer strip edge flatness control.

Both electric variants can be used with hot coolant for steel and aluminum strip edge flatness control and rapid mill warm-up. The Integrated Solenoid Valve cooling spray bars for the rolling mill system are designed and manufactured in the UK, ensuring high quality and machining tolerances. They have been installed in over 650 steel and aluminum hot, cold, and foil rolling mills worldwide. Primetals Technologies provides design, manufacture, installation, commissioning, and servicing for Integrated Solenoid Valve (ISV) spray systems, ensuring precise and reliable roll-cooling solutions for every mill.

Benefits of Cooling Spray Bars for Rolling Mills

• Durable construction: full stainless-steel valve construction ensures maximum corrosion resistance and longevity.
• Precision control: pulse-width-modulated valves allow for precise control, enhancing flatness control.
• Easy maintenance: front face valve access simplifies maintenance, reducing machine downtime.
• Advanced thermal modeling: optimizes thermal performance, ensuring high-resolution shape control
• Versatile compatibility: suitable for both ferrous and non-ferrous industries, compatible with kerosene and water-based solutions
• Efficient operation: low-power solenoid and no external wiring harness streamline installation and operation
• Contamination tolerance: increased tolerance to dirt and contamination, minimizing maintenance needs