Cast Steel Gate Valves are designed for full-flow isolation in high-pressure and high-temperature piping systems. These valves use a rising stem with a wedge gate mechanism to provide tight shut-off and minimal pressure loss when fully open. Manufactured from high-quality cast carbon steel, they are widely used in oil & gas, power generation, refineries, petrochemical, chemical, steam, and industrial process applications. Design & Construction: Body Material: ASTM A216 Gr. WCB (Carbon Steel) Bonnet: Bolted Bonnet / Pressure Seal Bonnet Wedge Type: Flexible Wedge / Solid Wedge Stem Material: ASTM A182 F6a / SS410 / SS304 / SS316 Seat Ring: Renewable Stainless Steel / Stellite Hard-Faced Trim: 13% Cr / SS304 / SS316 / Stellite Gasket: Spiral Wound Stainless Steel with Graphite Filler Operation: Handwheel / Gear Operated / Pneumatic / Electric Actuator End Connections: Flanged (RF/RTJ), Butt Weld (BW) Standards & Specifications: Design Standard: API 600 / ISO 10434 / ASME B16.34 Face-to-Face: ASME B16.10 Flange Standard: ASME B16.5 Butt Weld Ends: ASME B16.25 Testing & Inspection: API 598 Fire Safe: API 607 (where applicable) Pressure Rating: Class 150 / 300 / 600 / 900 / 1500 / 2500 Size Range: ½“ (15 mm) to 48“ (1200 mm) Features: Full bore design for minimum pressure drop Bubble-tight shut-off Heavy-duty cast steel construction Renewable seat rings for extended service life Low operating torque Blow-out proof stem Suitable for high-pressure and high-temperature service Long service life with low maintenance Available with IBR certification for steam applications Applications: Oil & Gas Industries Refineries Petrochemical Plants Power Generation Plants Steam & Boiler Systems Chemical Processing Industries Water Treatment Plants Process & Utility Pipelines Marine & Offshore Applications Advantages: Excellent sealing performance High mechanical strength and durability Reliable operation under severe service conditions Corrosion and wear-resistant trim options Easy maintenance with replaceable seats Available in manual and automated configurations Manufactured to international standards for critical industrial applications

Kartar Cast Iron Reflux Non-Return Valves are designed to automatically prevent reverse flow in pipelines, protecting pumps, motors, and other equipment from backflow damage. The swing-type disc opens with forward flow and closes automatically when the flow reverses, ensuring reliable non-return operation. These valves are widely used in water supply, irrigation, fire protection, pumping stations, and industrial utility systems. They are manufactured in accordance with IS 5312 standards and are available with metal or rubber seating. Design & Construction: Body Material: Cast Iron (IS 210 FG 200) Cover: Bolted Cast Iron Cover Disc Type: Swing Type Renewable Disc Seat: Gunmetal/Bronze Seat Ring or Rubber Seat (model dependent) Hinge Pin: Stainless Steel Operation: Automatic Swing Check Mechanism End Connection: Flanged Ends as per IS 1538 Standards & Specifications: Design Standard: IS 5312 (Part 1) Pressure Rating: PN10 / PN16 Testing Standard: Hydraulic Shell & Seat Test as per IS 5312 Available Sizes: DN50 (2“) to DN300 (12“) and larger on request Working Medium: Water, Air, Oil and other compatible non-corrosive fluids. Features: Automatic prevention of reverse flow Heavy-duty cast iron construction Low pressure loss with swing disc design Renewable disc and seat for longer service life Corrosion-resistant internal components Leak-tight sealing performance Easy installation and low maintenance Long operational life Applications: Water Supply & Distribution Systems Pumping Stations Fire Fighting Systems Irrigation Networks Water Treatment Plants Industrial Utility Pipelines Municipal Water Projects HVAC & Cooling Water Systems Advantages: Protects pumps and pipelines from backflow Reduces maintenance and operating costs Durable and reliable construction Suitable for horizontal and vertical installations (upward flow in vertical pipelines) Manufactured in accordance with Indian Standards for dependable industrial and municipal applications.

Kartar Dual Plate NRVs are compact, spring-assisted wafer-type non-return valves designed to automatically prevent reverse flow in pipelines. The dual spring-loaded plates open with forward flow and close rapidly when the flow stops, minimizing water hammer and protecting pumps, compressors, and piping systems. These valves are ideal for water supply, fire protection, HVAC, irrigation, and industrial process applications. Design & Construction: Body Material: Cast Iron (CI) / Ductile Iron (DI) Disc Material: Stainless Steel (SS304 / SS316) or SG Iron (model dependent) Spring Material: Stainless Steel Seat Material: EPDM / NBR (application dependent) Hinge Pin: Stainless Steel Type: Wafer Type, Dual Plate, Spring Assisted End Connection: Wafer Type (Suitable for PN10 / PN16 Flanges) Standards & Specifications: Design Standard: API 594 / IS 5312 (applicable models) Testing Standard: API 598 Pressure Rating: PN10 / PN16 Available Sizes: DN50 (50 mm) to DN600 (600 mm) Installation: Horizontal or Vertical (upward flow) depending on service conditions. Features: Compact wafer design with reduced face-to-face dimensions Dual spring-loaded plates for quick closing Prevents reverse flow and minimizes water hammer Low pressure drop Corrosion-resistant construction Lightweight and easy to install Low maintenance and long service life Suitable for high-flow industrial applications Applications: Water Supply & Distribution Systems Fire Fighting Systems HVAC Installations Pump Discharge Lines Irrigation Networks Water & Wastewater Treatment Plants Industrial Utility Pipelines Chemical & Process Industries Advantages: Fast-closing mechanism protects pumps and pipelines Compact and lightweight compared to swing check valves Reliable leak-tight performance Easy installation between flanges Long service life with minimal maintenance Manufactured in a wide range of sizes for commercial and industrial applications.