Explore our highly integrated check valve units tailored for industrial applications in the Istanbul metropolitan area and surrounding maritime corridors.
Istanbul, straddling Europe and Asia, acts as a vital commercial nexus and geopolitical bridge. It anchors Turkey’s industrial engine, driven by massive manufacturing zones like İkitelli OSB, Tuzla Shipyard Zone, and the nearby Dilovası industrial belt. Local infrastructure projects, maritime expansions, and chemical plants in this region require highly durable check valves (non-return valves) to prevent reverse flow and mitigate dangerous water hammer shocks.
As a leading supplier and manufacturer supplying Istanbul and European markets, KR Valve delivers industrial fluid controls optimized for high thermal stress, mechanical vibration, and maritime corrosion. Turkish engineering demands compliance with strict EN and TSE (Turkish Standards Institution) guidelines. Our product lines conform to these rigorous criteria, ensuring seamless integration into Turkish infrastructure networks.
Our proximity to Istanbul’s major ports (Port of Ambarlı and Port of Haydarpaşa) allows us to execute rapid transit shipping of heavy casting valves to regional markets across the Mediterranean, the Black Sea, and European distribution centers. This logistical advantage, paired with our advanced casting foundries, positions KR Valve as a preferred long-term engineering partner for municipal water administrations and maritime shipbuilders in Turkey.
With over 20 years of experience, we provide over 500 valve designs to water treatment projects, power generation sites, and petrochemical operations globally.
Discover our systematic development approach, ensuring every check valve satisfies severe pressure containment limits.
Our dedicated R&D division utilizes finite element analysis (FEA) and computational fluid dynamics (CFD) to optimize flow patterns, reducing turbulence and pressure drops in wafer check valves. We hold 20 unique product series, continually introducing innovations to minimize wear and extend service life.
All casting processes run under ISO 9001 quality management guidelines. Armed with 30+ precision machining tools and automated assembly lines, we ensure batch consistency for ductile iron (GGG40/50), WCB, and stainless steel check valves. Our flexible production scheduling ensures short lead times for large-scale projects.
Zero leakage is our fundamental guarantee. We inspect every valve body and seat configuration using API 598 hydrostatic, pneumatic, and shell tests. In addition, spectrometer analysis is performed on all stainless steel components to verify raw chemical composition before assembly.
How KR Valve addresses challenges across water resources, municipal engineering, energy pipelines, and maritime vessels.
Water networks in growing industrial zones demand reliable check valves to protect pumps against catastrophic reverse-flow damage. Water hammer occurs when pumps shut down, sending high-pressure surges back through the system. Our dual-disc check valves utilize spring-assisted closure to shut right before fluid velocity reaches zero, neutralizing pressure spikes.
Istanbul’s marine industry operates under corrosive conditions. Tuzla shipyard engineers demand high-alloy valve selections. Our CF8 (304 SS) and CF8M (316 SS) flanged check valves are engineered for salt spray, marine mud, and high chloride environments. They prevent seawater backflow on bilge pump lines and ballast systems, ensuring long-term vessel stability.
Handling corrosive chemical solutions and high-temperature steam lines requires robust engineering. Our PTFE-lined valves and heavy-duty swing check valves provide reliable shutoff under extreme chemical exposure. By reducing friction and ensuring absolute seal tight closure, they prevent volatile media from backing up into processing pumps.
High-rise commercial properties and industrial district heating loops in Istanbul rely on HVAC and heating networks to manage hot and cold water distribution. The spring-loaded non-return mechanism ensures silent closing, eliminating valve slam in building piping networks while minimizing energy losses from thermal convection bypasses.
Understanding international engineering standards to make an informed choice for your specific pipeline layout.
| Standard | Design Geometry | Primary Material Class | Pressure Testing Standard | Key Application |
|---|---|---|---|---|
| BS 5153 | Dual Plate / Swing Type | Cast Iron (CI) & Ductile Iron (DI) | BS EN 12266-1 | Waterworks & Sewerage Pipelines |
| API 594 | Wafer / Lug Dual Plate | Cast Steel, SS304/SS316, Alloys | API 598 / ISO 5208 | Refinery, Gas, Oil & High-Pressure Fluid Loops |
| AWWA C594 | Wafer Dual Disc | Ductile Iron & Stainless Steel | AWWA Standards | Water Treatment & Municipal Utility Projects |
| DIN EN 12334 | Cast Iron Swing Type | Grey Cast Iron (GG25) / DI (GGG40) | EN 12266 | European Heating & General Process Distribution |
Every check valve shipped to Istanbul is fully certified under international standards, including CE marking, PED (Pressure Equipment Directive 2014/68/EU), and TSE certifications. We operate a fully equipped materials testing laboratory to conduct chemical composition analysis, hardness tests, and low-temperature impact tests. This ensures our valves perform reliably in challenging operational settings.
As the industry moves toward digital monitoring, KR Valve is developing check valves integrated with pressure differential transmitters and acoustic acoustic sensors. These tools allow real-time wear tracking, seal integrity analysis, and early backflow leakage detection. This helps operators schedule preventive maintenance and avoid unscheduled system shutdowns.
We provide comprehensive support from initial technical drawings to site installation, helping you find the right flow control solution.
We promote our proprietary brand ‘KR’ and support professional OEM/ODM requirements, manufacturing customized check valves that align with your branding and layout requirements.
Our machining floor utilizes 15 advanced CNC tools, grinding machinery, and high-precision testing setups operated by experienced technical professionals.
We manufacture 20 core valve series and over 500 configurations, including check valves, butterfly valves, gate valves, and strainers manufactured to EN, DIN, ANSI, and BS specs.
We monitor every step of the process, including sand casting, precision machining, seal assembly, dynamic testing, and sandblasting to deliver reliable finished products.
By producing components in-house and streamlining raw material sourcing, we minimize overhead costs and pass those savings directly to our customers.
Our sales support team is available 24/7 to provide technical guidance, dimensional drawings, raw material certifications, and operation and maintenance manuals.
Our valve systems are implemented across demanding waterworks, processing facilities, and infrastructure developments worldwide.
Supplied specialized water control valves designed to handle high mechanical vibrations, variable velocity pressures, and turbulent flow patterns.
Delivered large-bore butterfly valves and non-return check valves designed for silent closure and low pressure drop across municipal water distribution lines.
Supplied heavy-duty check valves and resilient wedge gate valves designed to withstand high suspended solids in sludge handling systems.
Delivered corrosion-resistant valves, including high-alloy stainless steel and PTFE-lined valves, to ensure safety on chemical process lines.
Provided high-pressure ball valves and swing check valves built to withstand low-temperature environments and high cyclic loads.
Delivered non-return check valves and water control valves engineered to prevent backflow and manage fluid flow across municipal treatment basins.
Get a direct look at our production floor, machining centers, and inspection processes.
Technical guidance on check valve selection, installation, and troubleshooting.
Valve slam occurs when the valve disc remains open when the pump stops, causing the reversing fluid column to slam the disc shut. This issue can be resolved by installing quick-closing, spring-assisted dual-plate check valves. These use springs to close the disc before the reverse flow velocity builds up, preventing high pressure spikes.
Material selection depends on temperature and chemical exposure. EPDM is suitable for hot/cold water and low-pressure steam systems. NBR provides good resistance to petroleum-based oils, grease, and fuels. Viton (FKM) is used for high-temperature applications and aggressive chemicals, offering superior degradation resistance.
Yes, they can be installed vertically, provided the pipeline flow is moving upward. If flow is downward, gravity will cause the discs to remain open, compromising the non-return function. For vertical installations, ensure the valve is designed with a spring rating suited to balance the weight of the disc.
Testing requires a shell test at 1.5 times the nominal pressure rating using water, followed by a seat leakage test at 1.1 times the nominal pressure rating. Gas testing is typically performed at 6 bar to detect micro-leakage across the seating surfaces.
Explore our complete non-return and process flow control product line, designed to fit standard ANSI, BS, DIN, and JIS flange dimensions.
Our complete range of industrial valves, including butterfly, gate, and pressure-reducing controls.
Explore our core engineering product lines, built to meet key international dimensional standards.
Concentric, double-eccentric, and soft-sealed lug designs for reliable flow control.
Resilient wedge gate valves and metal-seated sluice gates built to DIN and BS standards.
Dual-plate wafer, flanged swing, and ball-type check valves for backflow prevention.
Protective mesh straining components in WCB and stainless steel for pipeline filter setups.
Contact us today to receive customized technical support, detailed dimensional drawings, and competitive pricing for your projects.
Send Inquiry Now
KR VAVLE
