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Brass Non Return Valve (NRV)
Manufacturer,Stockist and Exporter of Brass Non Return Valve (NRV)
Sumer Metal Industries Private Limited manufactures high-quality Brass Non-Return Valves (NRVs) designed to prevent reverse flow in liquid and gas systems. Each NRV is produced using precision casting and CNC finishing to ensure tight seating, low leakage and consistent performance. The valves are offered in sizes and end-connections that suit building services, HVAC, water supply, marine auxiliary systems and many industrial piping networks.
Their NRV bodies are machined from dezincification-resistant and general-purpose brass alloys chosen for durability and corrosion resistance in potable water and many non-aggressive fluids. Sumer’s manufacturing flow includes heat-treatment where required, PTFE or EPDM seating options for different media, and pressure-tested assembly to meet international quality expectations. Every valve is visually inspected and batch traceability is maintained for export shipments.
Sumer Metal Industries positions these NRVs for global markets — with regular exports to Gulf countries (Oman, Qatar, Saudi Arabia, UAE, Kuwait), European markets (Spain, Germany), North America (USA, Canada) and varied markets across Africa. Packaging and documentation are adapted to customer and country requirements (e.g., customs paperwork, material certificates, and optional third-party test reports). The company also offers customization such as special markings, OEM packaging and customer-specified sealing materials.
Performance highlights include low forward pressure drop, rapid closure to prevent backflow surges, and a wide operating temperature range (suitable seat materials permitting). Typical applications include service risers, pump discharge lines, thermal plant return lines, potable water systems and compressor bleed lines. The design emphasizes easy installation, low maintenance and field replaceable seats to lower life-cycle cost.
Quality and standards compliance are integral: valves may be supplied to meet widely accepted standards and customer specifications (material certificates, hydrostatic test records and dimensional drawings). Sumer’s manufacturing and inspection processes are set to minimize assembly-related leakage and to keep dimensional consistency across production lots — critical when valves must mate with threaded or flanged systems in international projects.
Finally, Sumer Metal Industries supports customers with technical data, CAD/dimension drawings on request, and pre-shipment inspection options. They provide recommended spares (seats, springs where applicable) and guidance on selection (pressure class, seat material, temperature limits) so end users in different climates and regulatory environments receive a valve matched to their needs.
Sumer Metal Industries Private Limited manufactures precision Brass Non-Return Valves (NRVs) engineered to prevent backflow in liquid and gas systems. Each valve is produced using controlled casting and CNC machining processes to ensure dimensional accuracy and reliable seat closure. The company focuses on consistent tolerances so NRVs mate correctly with threaded or flanged pipework used across residential, commercial and industrial installations.
Material selection is central to Sumer’s NRV performance. Bodies are offered in free-machining brass and dezincification-resistant brass alloys depending on the application, while internal components such as discs, springs and seats are matched to media and temperature requirements. Seat options typically include PTFE for chemical and higher-temperature use, EPDM for potable water and NBR for oil and fuel systems — ensuring compatibility and long service life.
Sumer’s NRVs are designed for low forward pressure drop and positive closure to minimize leakage and protect upstream equipment like pumps and compressors. The internal geometry is optimised to reduce turbulence and wear on moving parts; where applicable Sumer fits corrosion-resistant springs and guided discs to prevent sticking and reduce the chance of water hammer during sudden flow reversals.
Specification Of Brass Non Return Valve (NRV)
| Parameter | Typical Value / Options |
|---|---|
| Body Material | Free-machining brass / Dezincification-resistant brass (per order) |
| End Connections | Female BSP/NPT threaded, Male threaded, Socket, Flanged (on request) |
| Sizes | ½" to 2" standard (larger sizes on request) |
| Pressure Rating | PN16 / 16 bar typical (variants up to PN25 available) |
| Temperature Range | -10°C to +120°C (with PTFE seat); -20°C to +90°C (EPDM) |
| Seat Material | PTFE (Teflon), EPDM, NBR (per media compatibility) |
| Endurance | Factory cycle tested; lifetime depends on duty & media |
| Standards / Tests | Hydrostatic test, visual & dimensional inspection, material certificate (on request) |
Robust quality control underpins export readiness. Every batch is subject to dimensional inspection, pressure/hydrostatic testing and functional cycling as per customer or project requirements. Material test certificates and optional third-party inspection reports can be supplied to meet procurement and regulatory needs in export markets such as Oman, Qatar, Saudi Arabia, the UAE, Kuwait, Spain, Germany, the USA, Canada and several African regions.
Versatility in end-connections and sizes makes Sumer’s NRVs suitable across many industries. Standard offerings include BSP/NPT threaded ends, socket weld and flanged variants for larger sizes. Standard size ranges normally cover ½" through 2" for common building and industrial needs, with larger bespoke sizes manufactured on request for process plants and heavy-duty systems.
Application-wise, these brass NRVs are widely used in potable water systems, HVAC recirculation lines, pump discharge and suction protection, marine and shipbuilding auxiliary lines, and many general industrial process streams where non-aggressive fluids prevail. For aggressive or specialized media the company recommends specific alloys or alternative materials to guarantee longevity and compliance with local regulations.
Sumer supports customization for OEM and project requirements: special markings, customer-specific packaging, customized seat materials, and marking to client material standards are all available. For large projects the company can supply pre-shipment inspection photos, batch traceability documentation and CAD drawings to streamline installation and approval processes at the client site.
Chemical Properties Of Brass Non Return Valve (NRV)
| Element | Typical Range (wt%) |
|---|---|
| Copper (Cu) | 58 – 72% |
| Zinc (Zn) | 28 – 40% |
| Lead (Pb) | ≤ 3% (for free-machining grades only) |
| Tin (Sn) | ≤ 1% (trace in some alloys) |
| Iron (Fe), Nickel (Ni), Others | Trace amounts (≤ 0.5%) |
| Notes | Exact composition depends on ordered alloy (dezincification-resistant alloys contain special alloying and lower zinc) |
Packaging and logistics are configured for international shipping: valves are protected with corrosion inhibitors where needed, individually wrapped, boxed, and palletised with export-grade crating for longer sea or air transit. Documentation packs — including commercial invoices, packing lists and material certificates — are prepared to match the customs and compliance needs of Gulf, European, North American and African destinations.
After-sales support includes recommended spare parts lists (seats, springs, O-rings), maintenance guidance and troubleshooting assistance. Sumer also offers advice on correct selection—matching seat material to media, choosing the appropriate pressure rating and confirming end-connection compatibility—to reduce failures and ensure that installed NRVs deliver reliable, maintenance-light service.
Finally, Sumer Metal Industries emphasises continuous improvement and customer feedback: product iterations incorporate field returns and performance data to refine seat designs, spring materials and assembly techniques. This customer-driven development, combined with export experience across diverse climates and regulatory regimes, makes their brass NRVs a practical and widely accepted choice for engineers and procurement teams worldwide.
Mechanical properties Properties Of Brass Non Return Valve (NRV)
| Property | Typical Range / Value |
|---|---|
| Tensile Strength (Rm) | 250 – 500 MPa (varies by alloy and tempers) |
| Yield Strength (Rp0.2) | 120 – 350 MPa (depending on alloy & heat treatment) |
| Elongation (A) | 5 – 40% (alloy and temper dependent) |
| Hardness | 80 – 160 HB (Brinell) typical |
| Notes | Values are indicative; request mill/test certificates for project acceptance |