NST pitches check valve selection guide for municipal infrastructure projects

NST is outlining how municipalities and EPC teams should choose check valves for water, wastewater and stormwater systems, with a focus on water hammer protection, lower head loss and long service life. The guide also positions the Zhengzhou-based company as a global supplier with manufacturing, service and engineering support for large municipal projects.

Why it matters: - Municipal water, wastewater and stormwater systems run continuously and can face severe damage from water hammer, power outages and reverse flow. - Check valves that reduce pressure spikes and energy loss can protect pumping stations, pipelines and utility budgets over decades. - Municipal buyers must balance reliability, corrosion resistance, lifespan and operating efficiency in critical public infrastructure.

What happened: - NST, operated under Newstar Valve (Zhengzhou) Co., Ltd., published a technical selection guide for professional check valve solutions in municipal infrastructure projects. - The guide targets municipal engineers, utility managers and EPC contractors working on water transmission, treatment and pumping systems. - The company points readers to its website for technical specifications, dimensions and municipal engineering case studies: More information

The details: - Municipal procurement prioritizes hydraulic reliability during peak floods, pressure spikes and power interruptions. - Municipal installations often require operating lifespans of 30 to 50 years. - High pressure drop across a valve can add meaningful electricity costs across years of continuous pumping. - Standard off-the-shelf valves can fall short when applications require custom hydraulic damping, strong sealing and corrosion resistance. - The guide identifies three common pain points in municipal systems: water hammer, high head loss and media corrosion or debris jamming. - Non-slam dynamic closure designs use balanced discs, counterweights or internal hydraulic dampers to close at zero flow velocity and reduce reverse flow. - Streamlined internal flow passages, including tilting disc check valve designs, lower pressure drop and improve pump efficiency. - Epoxy coatings, stainless steel or bronze alloy trim, and non-clogging pivot structures help resist corrosion and debris buildup. - The supplier evaluation checklist calls for in-house manufacturing, precision machining and non-destructive testing. - The checklist also asks whether a vendor can perform computational fluid dynamics simulation and dynamic hydraulic calculations. - The guide recommends verifying ISO 9001 quality management certification and international approvals for potable water and municipal use. - Project teams are told to look for experience supplying large-diameter valves, including DN1000 and above, for major municipal water transmission and treatment plants. - The checklist includes global service coverage for installation, commissioning and long-term maintenance support.

Between the lines: - The guide frames valve selection as a lifecycle decision, not a simple procurement choice. - NST is positioning itself as both a product supplier and a technical partner for municipal systems that need performance modeling, lifecycle support and spare parts access. - The article also underscores the cost of ignoring head loss: energy use can become the largest share of lifetime valve cost. - NST says its brand holds more than 40% market share for butterfly valves in domestic municipal water treatment applications in China. - NST says its sales and service network covers most capital cities and municipalities in China and extends to the USA, Germany, Italy, the Middle East, Africa and Central Asia.

What's next: - NST says engineering teams can review flow rates, pipe diameters, working pressures and media characteristics to recommend tailored flow control solutions. - Municipal buyers considering new pumping stations or system upgrades can use the guide’s checklist to compare suppliers on manufacturing depth, hydraulic design capability and after-market support. - The company is directing readers to its website for more technical product information and case studies.

The bottom line: - For municipal infrastructure, valve choice affects safety, energy spend and long-term reliability, not just upfront purchase price.