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304 Stainless Steel Silent Check Valve with Non-Slam Closure and Low Head Loss for Corrosive Applications

  • 304 Stainless Steel Silent Check Valve with Non-Slam Closure and Low Head Loss for Corrosive Applications
Plaats van herkomst China
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Productdetails
Materiaal Gieten, messing, roestvrij staal, nodulair gietijzer, GGG40 Poortgrootte DN50-DN1200,Standaard,2"-24",DN50-800,3/4"
Stroom Handmatig, elektrisch bediend, hydraulisch, handwielbediend, GO Druk Middelhoge druk, lage druk, PN10-16, PN1.0/PN1.6,250PSI
temperatuur van media Gemiddelde temperatuur, normale temperatuur, lage temperatuur, -10 ~ 100 ℃ Media Water, olie enz., gas enzovoort
Sollicitatie Algemeen, irrigatie, waterdistributie, industrie, watersysteem Structuur Poort, vlinder, niet-stijgende schuifafsluiter
Standaard of niet-standaard Standaard Productnaam schuifafsluiter, gietijzeren elektrische schuifafsluiter met niet-stijgende steel DN40-DN600, DIN /
Standaard DIN,BS,JIS,F5;AWWA C509/C515;ANSI,DIN3352 Maat DN40-DN600,DN50 ~ DN 1000,2''-24'',DN15 tot 100
Verbinding Flensuiteinden, dubbele flens, BSP, mofuiteinden, binnendraad Lichaamsmateriaal Nodulair gietijzer, DI/CI, DI, gietijzer, messing
kleur Blauw, verzoek van de klant, eis van de klant, geel, GRIJS Medium Water, water, olie, gas
Type Schuifafsluiter, normaal open, 2-weg, niet-stijgende steel / NRS Kleptype poortklep
Zegel met rubber bekleed, metaal, PTFE
Markeren

304 Stainless Steel Silent Check Valve

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Silent Non-Slam Closure Check Valve

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Low Head Loss Check Valve
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Productomschrijving
304 Silent Check Valve
Product Overview
The 304 Silent Check Valve is an advanced, hydraulically optimized check valve engineered to prevent reverse flow without water hammer, shock noise, or disc slamming. Featuring a streamlined axial or tilting disc design, it ensures smooth, silent, and reliable operation in systems where noise, pressure surge, and valve wear are critical concerns. Constructed entirely from 304 stainless steel, it is ideal for corrosive, hygienic, and demanding fluid handling applications.
Key Features
  • Silent, Non-Slam Closure: Unique internal design with spring-assisted or lever-weighted mechanism ensures gradual, shock-free closure even under fluctuating flow conditions.
  • 304 Stainless Steel Construction: Excellent corrosion resistance, durability, and hygiene compliance for chemical, marine, food, and pharmaceutical industries.
  • Low Head Loss: Streamlined flow path and optimized disc geometry minimize pressure drop and improve system efficiency.
  • Maintenance-Friendly Design: In-line repairable models allow for seat and spring replacement without removing the valve body from the pipeline.
  • Versatile Mounting: Can be installed in horizontal or vertical pipelines (flow direction upward).
  • Long Service Life: Precision-machined seating surfaces and corrosion-resistant materials ensure reliable sealing and extended durability.
Technical Specifications
Body & Trim Material AISI 304 Stainless Steel
Seat Seal EPDM, NBR, FKM, or PTFE (optional)
Spring Material 304 or 316 Stainless Steel
Connection Types Threaded (NPT/BSP), Flanged (ANSI/DIN), or Wafer
Size Range ½" to 24" (DN15 to DN600)
Pressure Rating Class 150 / PN16 to Class 300 / PN40
Temperature Range -20°C to +120°C (w/ elastomeric seals) | Up to 400°C (all-metal design)
Compliance API 594, API 6D, ISO 5208, or as customized
Applications
  • Water & wastewater treatment plants
  • HVAC, pumping stations, and booster systems
  • Chemical, petrochemical, and process industries
  • Marine & offshore piping systems
  • Food, beverage, and pharmaceutical processing
  • Fire protection and irrigation systems
Operation Principle
The valve utilizes a guided disc and a calibrated spring (or lever-counterweight) to control the closing motion. As forward flow decreases, the spring gently returns the disc to the seat before reverse flow occurs, eliminating sudden closure and associated hydraulic shock.
Benefits
  • No Water Hammer: Protects pipelines, pumps, and equipment from pressure surges.
  • Quiet Operation: Ideal for noise-sensitive environments such as buildings and hospitals.
  • Energy Efficient: Reduced pressure loss lowers pumping costs.
  • Low Maintenance: Non-slamming action drastically reduces wear on sealing surfaces.
  • Safe & Reliable: Prevents backflow contamination and system failure.
Installation Notes
• Ensure proper flow direction alignment with valve arrow.
• Support the valve appropriately to avoid pipeline stress.
• For vertical installation, confirm valve orientation suitability with manufacturer.
• Recommend installing downstream of pumps or system outlets where flow reversal risk exists.
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