Needle valves, sometimes referred to as plunger valves, are regulating valves and enable engineers to finely control and regulate water flow and pressure. The precision is achieved through the fine movement of the shaft, which enables the gearbox to move the piston tube in sliding motion towards opening or closing position, depending on the requirements from the control system. Needle valves can be used in many different applications with a need for flow or pressure regulation. In water treatment and distribution, dams, reservoirs, power plants and industry needle valves are e.g. used for: • Flow control • Pressure regulation • Pump start • Turbine by-pass • Discharge • Reservoir inlets • Air regulation When to use needle valves? Needle valve, in comparison with diaphragm control valves, can be used with higher differential pressure, and our needle valve standard range covers a pressure range up to PN100. Our standard size range covers DN80 to DN2000. The needle valves can be manually actuated or can be controlled by electrical, hydraulic or pneumatic actuation.

NephNet is the first battery powered, portable turbidity monitor that is revolutionising the industry. It gives the same measurement performance as the more traditional fixed monitor - with no compromise on measurement. The NephNet is used to control both responsive flushing and controlled, planned cleaning, which helps to safeguard water quality for consumers. This new technology offers a string of benefits to help water companies control their mains flushing, including continuous remote monitoring of turbidity; better accuracy at lower levels; fast connection to water mains via hydrants; and wireless communications and alarms. If the NephNet is permanently deployed it can also allow customers to track any issues, identify where problems are occurring and forewarn when any problems are likely to reach the customers. NephNet features and benefits include: - Continuous remote monitoring of turbidity (every second) - Built-in 'automatic zero' technology that offers excellent resolution and better accuracy at lower levels , <0.100 NTU - Quick connection to water mains via hydrants - Wireless communications and alarms - Data accessed via secure website - Battery life for NephNet is over one year - Rechargeable battery for NephNet guarantees extended power longevity - Less water wastage - USB Data logging as standard - Tailor made telemetry - Optional LCD to assist with real time data visibility during flushing quick install - NephNet can be used on any existing logging devices (flow and pressure) - Simple maintenance and check - requires only annual servicing Technical Specifications: - Range: 4/400 NTU (0-4.000, 0-40.00, 0-400.0) - Accuracy: ± 5% of reading or ± 0.02 NTU Whichever is greater

The type-tested medium-voltage switchgear with withdrawable unit technology is used for primary distribution applications. There are numerous cubicle variants, which can be used to provide the optimal solution for the requirements of customers in industry and energy supply companies. Pressure relief channels, single or collective absorbers and deflector plates are used to discharge hot gases arising in the event of an internal arc.

NES-FD The type-tested double busbar switchgear in fixed-installation technology is distinguished by its compact modular design and particular ease of maintenance. The switchgear is equipped with a pressure relief channel to discharge hot gases arising in the event of an internal arc.

NES-H The type-tested medium-voltage switchgear enhances the product family for our withdrawable units for higher rated value requirements. The series to 17.5 kV is designed for very high-energy applications in power stations or industry. The 24 kV series at this voltage level meets all technical specifications for a powerful system for primary power distribution. Pressure relief channels, single or collective absorbers and deflector plates are used to discharge hot gases arising in the event of an internal arc.

NES12 – The new generation of medium-voltage switchgear technology With the NES12, we are presenting the next evolutionary stage in modern switchgear: compact, powerful, and consistently designed for future-proofing. Its innovative architecture combines maximum technical precision with maximum user-friendliness – for a new level of efficiency in planning, installation, and operation. Maximum performance in minimum space The NES12 impresses with its extremely compact dimensions and modular design, which enables flexible system concepts. Thanks to its sophisticated construction, it remains powerful – even with small field divisions. High current without compromise The rated field current corresponds to the circuit breaker's rated current – without any derating. The NES12 thus offers clear technical superiority and maximum planning and operational reliability, even in demanding applications. Optimized for everyday use. The NES12 has been consistently developed for real-world plant operation in primary energy distribution: • Optimized power cable connection for fast, safe installations • Improved accessibility for auxiliary drives and limit switches – ideal for working in medium-voltage bulkhead rooms • No forced ventilation required in high-current fields – reducing effort, operating costs, and susceptibility to faults Sustainable. Resource-efficient. Future-proof. With reduced material usage and a significant minimization of plastics, the NES12 sets an example in sustainability. At the same time, its air insulation makes it future-proof and independent of potentially critical insulation media. ________________________________________ NES12 – Compact. Efficient. Forward-looking. The new NES12 is the right choice for anyone who values maximum technical performance, sustainable system concepts, and long-term operational reliability.

NES24 The type-tested medium-voltage NES24 switchgear system with withdrawable unit technology is used for applications with high availability and great flexibility. The compact NES24 circuit-breaker system provides the optimal solution as a grid and distribution system for customers in industry and energy supply.

The Hach SC4500 Controller is designed to integrate easily into your current system while allowing you to upgrade as your capabilities advance, without having to replace inventory. With a wide range of analog and digital connectivity options and the availability of intelligent instrument and data management features, the SC4500 unlocks the future, today.

Lovibond Pocket Testers: Simple and Efficient Water Analysis The Lovibond Pocket Testers are designed with user-friendliness and efficiency in mind for water analysis. These handy devices offer reliable solutions for accurate measurements, whether for pool maintenance or industrial use. This article discusses the operation of the Lovibond Pocket Testers and their applicability. The operation of the testers varies depending on the type and the parameter being measured. They utilize advanced sensor technology. The process is straightforward: take a water sample, activate the tester, and read the results on the display. The advantages of Lovibond Pocket Testers make them essential for water analysis: - Portability: Their compact design makes them ideal for fieldwork and mobile measurements. - Accuracy: Thanks to advanced technology, these testers provide precise results, crucial for ensuring water quality. - User-friendliness: The simple operation and intuitive interface make the testers accessible to everyone. Recently, the Lovibond Pocket Testers have been updated. The older SD series, including the SD50 pH and the SD90 salinity meter, has been replaced with new models: SD10 pH, SD20 ORP, SD30 EC, and SD40 Multi. These updates offer improved functionality and ease of use, perfect for anyone seeking reliable water analysis. Specifications of the new models: - SD10 pH: Measures pH and temperature - SD20 ORP: Measures ORP and temperature - SD30 EC: Measures EC, TDS, salinity, and temperature - SD40 Multi: Measures pH, conductivity, TDS, salinity, and temperature The redesigned devices make it easier to replace batteries and electrodes. The transparent lid serves as a beaker for calibration and keeps the meter upright.

With the Roxtec knock-out frame transit, you can protect your site and equipment against flooding, humidity and rodents already during construction. Then you route cables and pipes and install sealing components whenever you want. The Roxtec knock-out frame (KOF) is a lightweight cast-in multi-cable transit that keeps your site dry during and after construction. The built-in knock-out plate maintains an environmental seal until it is knocked out prior to cable routing and installation of sealing components. The standard Roxtec RM sealing modules are adaptable to cables of different sizes and can be used to build in spare capacity in the transit. The KOF with plate can also provide spare capacity for future needs. By adding KOF adapters, the overall frame depth can easily be increased in steps of 50mm to fit walls of various thickness.

Hach's NH6000sc is an online ammonium analyser that uses gas-sensing electrode (GSE) technology for fast and accurate measurements. The device offers reliable results thanks to automatic calibration, validation and cleaning. An automatic grab sample verification improves consistency between online and laboratory data. Predictive diagnostics and supportive maintenance workflows help to maximise uptime.

Digital, optical photometric in-situ sensor for nitrate with turbidity compensation. NICO is a low-cost UV photometer for the determination of nitrate. The four detection channels enable a pre­cise optical determination of nitrate by absorption, taking into account turbidity and organic substances that pose a problem for many products currently on the market. An internal temperature correction additionally increases stability of the measured values. Equipped with our G2 interface with web browser configuration and internal data logger, NICO includes features that are much more advanced than those of comparable devices available on the market. The unified platform of all TriOS photometers also facilitates a standardized spare parts and consumables system, which allows the use of a wide range of accessories for our devices. Furthermore the cutting-edge G2 interface enables quick integration into third-party systems.