Valves

A Complete Valve Catalog for Every Level of Control

Selecting the right valve type for each point in a water network or industrial process is an engineering decision, not just a budgeting one. Marfel supports this decision with a portfolio covering every type of valve — manual, control, pressure-reducing, motorized, and sectioning — together with the flow measurement instrumentation needed to operate the network with full visibility, allowing each organization to advance its digitalization at the pace its infrastructure actually requires.

How it works. A manual valve is operated physically on site via handwheel, lever, or key, and remains the right solution for low-criticality isolation points or those with infrequent maneuvers. Control, pressure-reducing (PRV), and motorized valves incorporate an actuator — electric, pneumatic, or hydraulic — that executes the maneuver based on commands from a local PLC or RTU, which communicates with the central SCADA system through open protocols such as Modbus, OPC-UA, or IEC 60870-5. Position sensors, differential pressure transmitters, and, increasingly, smart flow meters close the control loop and allow autonomous regulation even during communication outages.

Business value. A combined portfolio allows investment in automation where the return is clear — sectors with a high history of leaks, critical pressure zones, points with frequent maneuvers — while keeping lower-cost manual valves across the rest of the network. Working with a broad, consistent catalog backed by internationally recognized certifications ensures material compatibility, spare-parts availability, and long-term technical support under one engineering standard.

Operational benefits. The right combination of valves and measurement instrumentation reduces non-revenue water losses through sector-based pressure control and precise flow quantification, lowers pipe bursts associated with water hammer, and enables predictive maintenance based on operation cycles, torque, and consumption data. At manual points, material standardization reduces spare-parts inventory and simplifies maintenance staff training.

Technology overview and integration. Automated valves and flow measurement equipment integrate natively with SCADA platforms and data historians, and through APIs can feed asset management systems (CMMS), geographic information systems (GIS), and Business Intelligence platforms. Even manual valves can be incorporated into a CMMS as georeferenced assets, building a complete network inventory.

Typical applications. Isolation and sectioning in secondary networks, pressure regulation within hydrometric sectors, remote sectioning for leak isolation, level control in tanks and wet wells, chemical dosing in treatment plants, and water balance through flow measurement at strategic points.

Future scalability. A network design that documents and standardizes its valves and measurement instrumentation from the outset enables an orderly migration toward progressive automation, laying the groundwork for digital twin architectures and predictive analytics as infrastructure evolves.

If your organization is defining which points in its network should be automated, measured, or kept manually operated, Marfel's team can help build that technical criteria.