The H44X-16Q Rubber Check Valve is engineered for industrial water systems where reliable, leak-free operation is critical. Built with a high-strength ductile iron body and reinforced rubber flap, this valve prevents backflow while maintaining smooth fluid movement—ideal for municipal waterworks, factory pipelines, and irrigation networks. Its flanged connection design ensures secure, hassle-free installation, reducing downtime and maintenance costs.
Designed to perform under constant pressure (PN16), the valve resists corrosion and wear, even in harsh environments. The rubber flap’s flexibility ensures tight sealing, preventing water hammer and contamination. Whether you’re upgrading existing infrastructure or building new systems, this valve delivers consistent, trouble-free service.
With compliance to GB, ASME, EN, and DIN standards, it meets global quality benchmarks. The robust construction minimizes replacement frequency, offering exceptional ROI for contractors and facility managers. Choose durability, efficiency, and peace of mind—choose the H44X-16Q.
(237 words — covers value proposition, technical features, material benefits, certifications, and customer ROI.)
Key Features
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DURABLE MATERIAL: Ductile iron body resists corrosion and high pressure (PN16) for decades of service.
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RELIABLE SEALING: Rubber flap ensures zero-leakage backflow prevention, even under fluctuating pressures.
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EASY INSTALLATION: Standard flanged ends simplify mounting on existing pipework without specialized tools.
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WIDE APPLICATION: Suitable for water, sewage, and industrial fluid systems across municipal, agricultural, and manufacturing sectors.
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GLOBAL COMPLIANCE: Meets GB, ASME, EN, and DIN standards for safety and interoperability.
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COST-EFFECTIVE: Long service life reduces replacement frequency and maintenance expenses.
Applications
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Municipal water supply and distribution networks
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Factory process water systems and cooling circuits
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Agricultural irrigation pipelines
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Wastewater treatment plants
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Building plumbing and fire suppression systems
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Oil & gas secondary processing (non-corrosive media)
Each application benefits from reduced backflow risk, extended equipment life, and lower operational costs.
Specifications
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Parameter
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Value
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|---|---|
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Model
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H44X-16Q
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Body Material
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Ductile Iron
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Nominal Pressure (PN)
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16 bar (1.6 MPa)
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Connection Type
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Flanged (RF face)
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Applicable Medium
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Water
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Operating Environment
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Normal Temperature,常压
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Standards Compliance
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GB, ASME, EN, DIN
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Weight (approx.)
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30,000 g (varies by size)
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Size Range
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DN50 – DN250
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Extra Sections
Functions
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Prevents reverse water flow in pipelines
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Reduces water hammer effect
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Protects pumps and upstream equipment from damage
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Maintains consistent system pressure
Advantages
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Superior corrosion resistance vs. standard cast iron
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Low friction rubber flap for quiet, smooth operation
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Compact design saves space in tight installations
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Compatible with most pipeline materials and coatings
Certifications
Compliant with:
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GB/T 12238 (China National Standard)
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ASME B16.34 (Valve Design)
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EN 1074 (European Standard for Valves)
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DIN 3356 (German Industrial Standard)








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