Double-Flap Check Valve

Product catalog summary

Overview: The document provides technical specifications and ordering information for Dorot's Double-Flap Check Valves, which are used in various industrial applications to prevent backflow.

Materials and Standards: The valves are constructed from various materials including cast iron, ductile iron, bronze, and stainless steel (SST304 and SST316). The document lists the corresponding JIS and ASTM standards for each material, ensuring compliance with industry norms.

Measurements: The valves are available in sizes ranging from 40 mm (1 1/2 inches) to 800 mm (32 inches). The document provides detailed measurements for each size, including weight and dimensions (A, B, C, R), which are critical for installation and compatibility.

Temperature Range: The valves can operate within a temperature range of 0-80°C (32-176°F) for standard seals and up to 120°C for EPDM seals, making them suitable for various environmental conditions.

Ordering Guide: The document includes an ordering guide with a sample format for specifying valve requirements. Customers can select body material (e.g., Cast Iron), flap material (e.g., SST304), and seal material (e.g., NBR) along with the valve size.

Key Components: The main components of the valve include the body, flap, shaft, bolt, spring, seal, and bush, each made from specific materials to ensure durability and performance.

Catalog excerpts

Body Flap Shaft Bolt Spring Seal Bush Double-Flap Valve Body Flap Shaft Bolt Spring Seal Bush CAST IRON DUCTILE IRON BRONZE STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL STEEL STAINLESS STEEL BUNA-N RUBBER EPDM RUBBER TEFLON 55 44 25.5 1.2 Example: 8” valve, Cast Iron body, SST304 ap, NBR seal 66 N Seal material N= NBR E= EPDM www.dorot.com • E-mail: [email protected]

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Double-Flap Check Valve

Double-Flap Check Valve

Catalog excerpts

All Dorot Control Valves catalogs and technical brochures