Tech & News

In the demanding landscape of municipal water infrastructure, reliability is not just an option—it is a necessity. At Metalsin, we understand that the South African water sector requires robust solutions capable of withstanding high pressures and challenging environmental conditions. This is why our flagship product line focuses on SANS 664 gate valves made of ductile iron (spheroidal graphite iron). Combining …

For water utility engineers and contractors in South Africa, selecting the right valve configuration is just as critical as meeting the SANS/SABS 664 standard. While handwheel-operated valves have their place in pump stations, the vast majority of municipal water distribution networks rely on a specific champion: the NRS (Non-Rising Spindle) Gate Valve with Cap Top. At Metalsin, we specialize in …

What Is Skid Mounted Fire Pump? The skid-mounted fire pump unit is an integrated and highly reliable firefighting system designed for a wide range of fire protection applications. It provides a stable, high-pressure water supply for firefighting in commercial buildings, industrial facilities, warehouses, and public infrastructure, ensuring dependable fire safety wherever it’s installed. Key Components A standard Metalsin‘s skid-mounted fire …

As a type of linear-motion isolation valve, the gate valve can either completely shut off or allow fluid flow through a pipeline. It is commonly used for isolation operations in potable water supply systems and plays a critical role at the raw water intake head. In the primary pump station (raw water intake station) of a water treatment plant, large-diameter …

The secondary water supply pump room serves as a pivotal component in ensuring consistent and reliable water delivery, particularly in high-rise buildings and remote areas where municipal water pressure is insufficient. This facility stores treated tap water in tanks and utilizes booster pumps to elevate water pressure, enabling it to overcome gravitational challenges and friction losses within vertical and extended …

Gate valves in water distribution systems act as the critical “cut-off” points along water mains, service connections, and pipelines leading to treatment plants. Their main function is to provide a reliable, on/off mechanism to completely isolate sections of the network for maintenance, repairs, or system modifications without disrupting the overall pressure and flow in the remaining network. When a gate …

Recently, Metalsin supplied two sets of large-diameter butterfly valves for a water project in Bratislava, Slovakia. The valves (DN 2000, PN10) are manufactured in accordance with EN 593 and feature a double-eccentric design with worm gear operation and a resilient seat. They are made from robust QT450-10 ductile iron castings, which meet the standards of EN-GJS-450-10. Additionally, the end connection …

The National Water Company (NWC), represented by its Central Cluster, has launched 46 water and sanitation projects in the Riyadh region, spanning over 2,900 km of pipelines at a total cost of more than SAR 1.6 billion, as part of its strategic initiative to enhance water and environmental infrastructure and expand service coverage. This ambitious package comprises 23 water projects—covering …

PDAM Surya Sembada Kota Surabaya promptly installed a pipe chamber along Jl. Balas Klumprik in the Wiyung District on Saturday, December 14, 2024. This chamber was built to accommodate various pipe accessories—such as a pressure reducing valve (PRV), a flow meter, and a gate valve—to help regulate water pressure and distribution in the Balas Klumprik area and its surroundings. A …

Pressure reducing valves are critical components in water supply systems. They are installed immediately after the water meter or at the main supply line. Their primary function is to reduce the high incoming water pressure from the municipal supply to a lower, safer, and more consistent level before the water is distributed throughout a building. Key Applications in Water Supply …

The Pegirian Pump House, located on Jalan Pegirian in Surabaya, Indonesia, is a vital facility managed by PDAM Surya Sembada, the regional water utility company. This pump house plays a crucial role in the city’s water distribution network by ensuring a consistent and reliable supply of clean water to various neighborhoods. Over the years, it has undergone several maintenance and …

On the afternoon of March 19, 2025, in Balas Klumprik, Wiyung District, Surabaya, Indonesia, PDAM Surya Sembada conducted wash-out repair work on the local water supply pipelines and replaced a corresponding underground gate valve. Metalsin has been supplying various waterworks valves to the Indonesian market, typically stem-cap fitted underground gate valves These valves are generally made of ductile iron and are …