Hard Seal Concealed Stem Gate Valve
Product Overview:
The Hard Seal Concealed Stem Gate Valve—also known as a civil air defense brass core valve—is designed to maintain sealing integrity under harsh and emergency conditions. Unlike conventional valves, it resists rust and long-term wear, making it ideal for civil defense systems, shock-absorption pipelines, and unstable flow applications.
This can be used in combination with explosion-proof wave valves to enhance system stability during pipeline vibration or emergencies.
Key Features:
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Design & Structure: Lightweight, safe, and durable. Enhanced material strength ensures even stress distribution and aesthetic finish.
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Sealing Surface: Integrated brass alloy valve plate with surfacing welding technology provides low friction and temperature resistance, ensuring reliable operation and low torque.
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Easy Operation: Light to open and close, simple to maintain.
Technical Specifications:
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Flange End: ANSI150LB / GB Standard / BS Standard
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Stem Material: 2Cr13 / Stainless Steel
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Bonnet & Body Material: Ductile Iron QT450
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Seal Material: Ductile Iron QT450 + NBR
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Surface Finishing: Epoxy Coating (Red / Blue)
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Working Pressure: 10 / 16 Bar
As a dependable , Fujian Spark Valve Co., Ltd offers comprehensive valve solutions for complex infrastructure and civil safety systems.
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