Leader Gun Metal / Bronze Vertical Check Valve (IS 025)

The Leader Gun Metal / Bronze Vertical Check Valve is engineered for dependable, single-direction backflow prevention in vertical and horizontal fluid line installations. Manufactured to meet IS 778 design guidelines, this single-piece valve features a spring-assisted disc setup that automatically isolates reversed flows, making it an ideal non-return solution for pump suction lines and general water management systems.

Key Product Features

• Single-Piece Solid Construction: Built with a compact, durable body design that eliminates potential leak paths.
• Spring-Loaded Mechanism: Outfitted with a Phosphor Bronze spring that enables installation in both vertical and horizontal orientations.
• Upward Flow Efficiency: Specially engineered for upward flow applications; must be installed vertically with inlet pressure beneath the disc seat.
• Dual-Guided Disc Alignment: Features precision guiding at both top and bottom stem points to ensure accurate seating and long-term seal reliability.
• Standard Parallel Threads: Screwed female parallel pipe threads compliant with IS 554 specifications.
• Suction Line Performance: Provides excellent throttling protection against backflow in pump suction lines and neutral liquid circuits.

Operating Limits & Technical Specifications

• Product Standards: IS 778 (CM/L-0485757)
• Testing Standard: IS 6157
• Item Code: IS 025
• Pressure Rating Classes: Class-1 & Class-2
• Size Availability: 15mm to 100mm (1/2″ to 4″)
• Maximum Working Pressure: 10 Bar (Class-1) | 16 Bar (Class-2)
• Maximum Working Temperature: 45°C
• Media Suitability: Potable water, treated fresh water, neutral liquids, air, and non-corrosive gases.

Hydrostatic Test Pressures

Materials of Construction (MOC)

Dimensions & Sizing Reference