Kartar Valves is a significant player in the Indian valve manufacturing industry, and their butterfly valves are a key product in their extensive portfolio. They are known for providing reliable and cost-effective flow control solutions across various sectors. Here's a breakdown of Kartar butterfly valves: Key Characteristics and Features: Design & Types: Wafer Type: This is the most common type offered by Kartar. These valves are designed to be sandwiched between two pipe flanges and are held in place by through-bolts. Lug Type (less common, but may be available): While wafer type is prevalent, lug-type valves (with threaded holes for bolting to flanges) might also be part of their specialized offerings. Slimline Design: Kartar often emphasizes a sleek, slimline design for their butterfly valves, which helps minimize installation space and potentially reduce weight. Materials of Construction: Body: Commonly made from Cast Iron (CI), SG Iron (Ductile Iron), Cast Carbon Steel (CS), and Stainless Steel (SS). They also mention Aluminium Die-cast for some variants, ideal for PVC/PPR/HDPE pipelines. Disc: Typically made from SG Iron (Ductile Iron) or Stainless Steel (SS) (e.g., AISI 410, CF8/SS304, CF8M/SS316). Liner/Seat: Integrally molded or replaceable liners made from elastomers such as Nitrile (Buna-N), EPDM, Neoprene, or Silicon. These provide 100% leak-tight closure. Stem: Usually Stainless Steel (e.g., AISI 410, AISI 304). Bushing & O-rings: Teflon, Nylon, Viton for smooth operation and sealing. Operational Control: Lever Operated: For smaller sizes, offering manual on/off control with a handle that can lock the disc in various positions. Gear Operated: For larger valves, a gearbox is used to reduce the effort required for operation, providing smoother control. They are also self-locking. Actuated Valves: Kartar supplies butterfly valves that are direct actuator mountable (as per ISO 5211 standard flange), meaning they can be easily fitted with electric actuators or pneumatic actuators for automated on/off or modulating control in industrial processes or BMS (Building Management Systems). Performance & Standards: Pressure Ratings: Available in PN10 and PN16 (1.0 MPa and 1.6 MPa respectively), with some Cast Steel versions offering PN20. Temperature Range: Generally from -10°C to 65°C for standard models, with some materials supporting wider ranges. Leakage: Designed for 100% leak-tight closing and bi-directional sealing. Certifications: Many Kartar butterfly valves are ISI Marked (IS:13095) and conform to international standards like BS 5155 and API-609, MSS SP-67, and ISO 5752 face-to-face dimensions. Durability: Made with robust materials to resist corrosion, abrasion, and wear, ensuring long operational life. Applications: Kartar butterfly valves are widely utilized across various sectors in India and internationally: Water Management: Water treatment plants, water distribution networks, pumping stations, irrigation, and raw water conveyance. Fire Fighting Systems: Crucial for flow control in fire hydrant lines and sprinkler systems. Models with supervisory switches are often used for this. HVAC Systems: Used in heating and air conditioning systems for controlling chilled water and hot water flow. Industrial Processes: Chemical industry, sugar industry, paper & pulp industry, power generation (thermal plants, hydel projects), waste & effluent treatment plants, compressed air lines, and general industrial pipelines. Agriculture: For water control in farming applications. Typical Models & Pricing (Approximate in India - as of July 2025): Kartar offers various models, often differentiated by material and operating mechanism (e.g., K701N, K704, K713). Price Range: The price for a Kartar butterfly valve varies significantly based on size, material, and automation (manual vs. actuated). Lever Operated Cast Iron Wafer Type (e.g., 50mm to 100mm / 2-4 inches): You can expect prices roughly from ₹900 to ₹4,000 per piece (excluding GST). Lever Operated Cast Iron Wafer Type for larger sizes (150mm to 300mm / 6-12 inches): Prices could range from ₹5,000 to ₹20,000+ per piece. Gear Operated Cast Iron Wafer Type: These will typically be a few thousand rupees more than their lever-operated counterparts for the same size. Actuated Butterfly Valves (Electric or Pneumatic): These will be significantly more expensive, starting from around ₹10,000 for smaller sizes and going much higher for larger, automated units.