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Resilient Seated Gate Valve (Non-Rising Stem)

𝘿𝙄𝙉 𝟑𝟑𝟓𝟐 / 𝘽𝙎 𝟓𝟏𝟔𝟑 𝘾𝙤𝙢𝙥𝙡𝙞𝙖𝙣𝙩 𝙒𝙍𝘼𝙎 𝘼𝙥𝙥𝙧𝙤𝙫𝙚𝙙 𝙀𝙋𝘿𝙈 𝙁𝙪𝙨𝙞𝙤𝙣 𝘽𝙤𝙣𝙙𝙚𝙙 𝙀𝙥𝙤𝙭𝙮 𝘾𝙤𝙖𝙩 (≥𝟐𝟓𝟎μ𝙢) 𝙕𝙚𝙧𝙤 𝙇𝙚𝙖𝙠𝙖𝙜𝙚

Introducing our Gate Valve (Non-Rising Stem), designed for water and liquids up to 80°C. It undergoes rigorous testing and holds certificates for safety and quality. Features include an ergonomic handwheel, low torque operation, reinforced body, >250 microns paint layer, and compatibility with drinking water. Optional accessories available. Ideal for industrial and commercial use.
Product Info

Technical Features & Design Advantages


  • Heavy-Duty Ductile Iron Body: Cast from high-grade Ductile Iron (GGG40/GGG50 or ASTM A536), providing superior tensile strength and pressure resistance compared to standard cast iron.

  • 100% Encapsulated Resilient Wedge: The gate is fully vulcanized with WRAS-approved EPDM or NBR rubber, ensuring bubble-tight shutoff with zero leakage and exceptional wear resistance.

  • Fusion Bonded Epoxy Coating (FBE): Internally and externally coated with a premium electrostatic epoxy powder layer (250 μm). This prevents internal corrosion, ensures drinking water safety, and extends underground service life.

  • Space-Saving Non-Rising Stem (NRS): The internal stem thread mechanism maintains a constant valve height during operation, making it ideal for restricted vertical spaces, underground pits, and compact valve chambers.

  • Triple O-Ring Stem Sealing: Engineered with a reliable multi-O-ring stem seal structure that allows for online maintenance or seal replacement under full working pressure.

  • Global Standards Alignment: Fully dimensioned and tested in strict compliance with international waterworks standards, including DIN 3352, BS 5163, and EN 1171.

Technical Specifications

Engineering AttributeSpecification Details
Design StandardsDIN 3352 / BS 5163 / EN 1171 / AWWA C509 / C515
Size Range AvailabilityDN50 to DN600 (2" to 24")
Nominal PressurePN10 / PN16 / Class 150
Body & Bonnet MaterialDuctile Iron GGG40 / GGG50 / ASTM A536 65-45-12
Wedge MaterialDuctile Iron + Fully Encapsulated EPDM / NBR
Stem MaterialStainless Steel 2Cr13 (SS420) / SS304 / SS316
End ConnectionsFlanged Ends (EN 1092-2, ANSI B16.42)
Working Temperature-10℃ to 80℃ (Drinking Water / Sewage Systems)

Primary Industrial Applications

  • Municipal Water Supply: Ideal for underground drinking water distribution networks, pump stations, and municipal pipeline isolation.

  • Wastewater & Sewage Treatment: Robust performance in gravity sewers and effluent treatment facilities handling non-corrosive fluids.

  • Fire Protection Networks: Suitable for fire-fighting water loops and mainline ring-isolation systems requiring high reliability.

  • HVAC & Cooling Systems: Provides stable fluid control in commercial chilled water circuits and industrial heating loops.



Bestec Industrial Co., Ltd.
Address: Zhukai Dasha, 286 Hezuo Lu, Shijiazhuang, China

Tel: +86-311-87283920

E-mail: sales@bestec.cn

Website: www.bestec.cn

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