{"id":10852,"date":"2024-09-18T06:41:42","date_gmt":"2024-09-18T06:41:42","guid":{"rendered":"https:\/\/ntval.com\/?page_id=10852"},"modified":"2024-11-06T10:08:26","modified_gmt":"2024-11-06T10:08:26","slug":"double-eccentric-butterfly-valve-manufacturer","status":"publish","type":"page","link":"https:\/\/ntval.com\/fr\/double-eccentric-butterfly-valve-manufacturer\/","title":{"rendered":"Vanne papillon \u00e0 double excentrique"},"content":{"rendered":"\t\t
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Trusted Double Eccentric Butterfly Valve Manufacturer<\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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NTVAL provides Double Eccentric Butterfly Valves designed for precision and durability in high-performance systems. Built to reduce wear and extend service life, our valves ensure consistent performance, making them ideal for critical applications that demand reliability and efficiency.<\/div>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Reliable Double Eccentric Butterfly Valve<\/h2>\t\t\t\t<\/div>\n\t\t
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Double eccentric butterfly valve is engineered to meet the strict demands and safety standards of the oil and gas industry. This high-performance butterfly valve is available in sizes ranging from 3 inches to 24 inches (DN 80-600). It is ideally suited for a variety of applications, including firewater systems, hydrocarbons, cargo handling, bilge and ballast systems, and utility services.<\/p>

Manufactured to comply with ASME 150 and 300 standards, the valve features a soft polymer seat. Depending on the application and required performance characteristics, customers can choose from PTFE, RTFE, or UHMWPE seat materials.<\/p>

The valve is offered in a selection of body materials, including carbon steel for general use, 316 stainless steel, and duplex stainless steel for applications that demand enhanced corrosion resistance.<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Quality Control<\/h2>\t\t\t\t<\/div>\n\t\t
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The PMI test checks the material composition of the double eccentric butterfly valve, verifying it matches the required design for safe use.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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PMI Test<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t
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The sealing test examines how well the valve can completely close, preventing leaks and maintaining effective flow control under pressure.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Sealing Test\u200b<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The low emission test evaluates any potential leakage, reducing the release of harmful gases or liquids into the environment.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Low Emission Test\u200b<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The impact test checks the valve\u2019s ability to handle sudden force or stress without breaking, providing durability in demanding conditions.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Impact Test\u200b<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The dimension inspection measures the valve\u2019s parts, making sure every component fits accurately for smooth operation and reliability.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Dimension Inspection\u200b<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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The painting thickness test verifies the coating\u2019s thickness, providing protection against corrosion and environmental wear, extending the valve\u2019s lifespan.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Painting Thickness Test\u200b<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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PT, or penetrant testing, identifies tiny cracks or surface flaws in the valve, highlighting areas that need repair or improvement.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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The material inspection reviews the strength and quality of the raw materials used, confirming their ability to withstand pressure and temperature.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Material Inspection\u200b<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Our Valve Applications in Key Industries <\/h2>\t\t\t\t<\/div>\n\t\t\t\t
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Discover how our advanced valve solutions improve flow control, delivering enhanced efficiency, safety, and strict quality assurance.<\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t
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Double eccentric butterfly valves handle corrosive chemicals with ease, offering dependable flow control in environments where safety is essential.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Chemical Processing\n<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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In the petrochemical industry, these valves manage the flow of oil and gas efficiently, performing well in high-pressure and high-temperature situations.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Petrol Chemical\n<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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These valves are vital in nuclear and power generation systems due to their ability to withstand extreme temperatures and heavy-duty operational conditions.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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O.P.G & Nuclear\n<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Double eccentric butterfly valves excel in the pulp industry, as they effectively control the flow of thick and abrasive fluids like slurry.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Pulp\n<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Mining operations rely on these valves for their ability to handle abrasive materials, maintaining high performance in demanding environments.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Mining<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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In water and sewage systems, double eccentric butterfly valves offer reliable control over large volumes of water, contributing to effective operations.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Water & Sewage\n<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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These valves regulate steam flow precisely, making them a practical choice for managing pressure and temperature in large steam distribution networks.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Steam System\n<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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In boiling systems, double eccentric butterfly valves provide safe and consistent control over steam and hot water flow, providing efficient heat management.<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t
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Boiling System\n<\/h5>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Get More Versatile Valve<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t
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Gate Valve<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\n\t\t\t\t

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Ball Valve<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\n\t\t\t\t

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Globe Valve<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\n\t\t\t\t

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Check Valve<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\n\t\t\t\t

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Plug Valve<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\n\t\t\t\t

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Butterfly Valve<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t

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Description<\/h2>\t\t\t\t<\/div>\n\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tBi-Directional, Drop-Tight Shut-Off<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t
NTVAL polymer and elastomer seats offer bi-directional, drop-tight sealing in both vacuum conditions and at full-rated differential pressure. The valve’s unique design achieves a secure seal without relying on pressure assistance.<\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tBlow-Out Resistant Shaft<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t

All valves come standard with a blow-out resistant shaft, enhancing safety.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tVersatile Packing Design<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t
The unique packing design allows the valve to operate effectively in both pressure and vacuum conditions without requiring modifications or special assembly.<\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tEnhanced Disc and Shaft Connection<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t
The disc taper pins are tangentially positioned, with half embedded in the disc and half in the shaft. This placement puts the pins in compression rather than shear, significantly reducing the risk of failure.<\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tRocker-Shaped Gland Bridge<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t

The rocker-shaped gland bridge compensates for uneven adjustment of gland nuts, effectively reducing the likelihood of packing leaks.<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t

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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tDisc Positioning and Seal Life<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t
The integrally cast disc position stop perfectly aligns the disc within the seat, maximizing both seat and seal life.<\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tExtended Neck Design<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t
The extended neck allows for 50 mm (2 inches) of pipeline insulation, accommodating various installation needs.<\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tDirect Actuator Mounting<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t
An integrally cast mounting pad enables the direct mounting of actuators, eliminating the need for additional brackets and couplings.<\/div><\/div><\/div><\/div><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t<\/path><\/svg><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\tOptimized Shaft Support<\/a>\n\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t

– The flattened body bore at the shaft journal ports positions the shaft bearings closer to the disc, providing maximum shaft support, reducing wear and extending valve life.
Where are Double Eccentric Butterfly Valves Used?<\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t