DN700 PN16 Heavy-Duty Rubber Flexible Joint – Molded EPDM with SS304 Vacuum Ring & Galvanized Flanges

SKU: KST-DN700-EPDM-PN16-HDG-CS

Model TypeKXT
Size(DN๏ผ‰DN700
Pressure RatingPN16
Bellow MaterialEPDM
Flange MaterialHDG Carbon Steel
Tempreature Range-20ยฐC to +120ยฐC
Wokring Medium Municipal/Industrial Wastewater
Length260mm
SealingRing-Face Sealing
AccessoriesConrol Rods

Product Description & Specifications

Product Overviewย 

The DN700 PN16 Heavy-Duty Rubber Flexible Joint is a high-performance, molded solution engineered for the demanding environment of municipal sewage pump stations. Specifically designed for pump discharge and suction headers, this rubber expansion joint is integrated with an internal SS304 vacuum ring to provide exceptional structural stability under negative pressure cycles.
Manufactured using high-precision molding technology, this joint offers consistent wall thickness and superior pressure containment at 16 Bar (PN16). By combining high-grade EPDM with hot-dip galvanized flanges, this rubber compensator serves as a top-tier quality replacement for global premium brands. Its standardized design ensures 100% interchangeability, allowing for rapid delivery and immediate deployment in critical wastewater infrastructure.

Key Featuresย 

    • Reinforced SS304 Vacuum Ring: A standard high-performance feature that prevents bellows collapse during pump suction or sudden vacuum events.
    • Heavy-Duty PN16 Rating: Precision-molded to handle intense discharge pressures and water hammer effects in large-bore sewage lines.
    • Galvanized Anti-Corrosion Flanges: Thick hot-dip zinc coating protects the carbon steel flanges from the humid and corrosive atmosphere of wastewater facilities.
    • Integrated Safety Control Units: Equipped with robust limit rods as standard to prevent over-extension and ensure the rubber flexible joint operates within safe limits.
    • Premium Global Brand Alternative: Engineered to match the performance and dimensions of international leaders, offering the same reliability with much shorter lead times.

Applicationsย 

    • Main Sewage Pump Stations: Ideal for suction lines prone to vacuum and high-pressure discharge headers.
    • Wastewater Treatment Plants (WWTP): Flexible links for influent pumps and effluent discharge.
    • Stormwater Drainage: Managing vibration and displacement in high-flow flood control systems.

FAQ

Q: Why is a Heavy-Duty joint with an SS304 vacuum ring essential for sewage pump stations?
A: Wastewater systems are prone to unpredictable pressure fluctuations. Our heavy-duty rubber flexible joint is the preferred choice for engineers due to:
  1. Anti-Vacuum Security: The internal SS304 vacuum ring provides critical skeletal support. It ensures the rubber expansion joint maintains its full flow diameter during suction cycles, preventing catastrophic bellows collapse that can destroy pumps.
  2. Reliable Replacement Capability: Designed as a high-precision alternative to premium international brands, our joint ensures that maintenance teams can replace old components without modifying existing piping, matching the original quality and service life.
  3. Corrosion & Fatigue Resistance: By utilizing hot-dip galvanized flanges and premium-grade EPDM, we provide a rubber compensator that thrives in the aggressive environments of sewage treatment, resisting both chemical and atmospheric corrosion.
  4. Meeting Project Deadlines: We specialize in rapid fulfillment. By offering this heavy-duty DN700 model as a standardized high-performance product, we can deliver to your site much faster than traditional premium suppliers, minimizing system downtime.

SEO

DN700 PN16 Heavy-Duty Rubber Flexible Joint - Molded EPDM with SS304 Vacuum Ring & Galvanized Flanges

Heavy-duty DN700 PN16 rubber flexible joint for sewage pumps. Molded EPDM with internal SS304 vacuum ring and galvanized flanges. A premium quality replacement for global brands with rapid delivery.

Product SKU: KST-DN700-EPDM-PN16-HDG-CS

Product Brand: SONGJIANGFLEX

Product In-Stock: PreOrder

Technical Specifications

Parameter Value
Nomial DiameterDN700(28inch)
Working Pressure16Bar
Test Pressure2.4MPa
Temperature Range-20ยฐC to +120ยฐC
Axial Extension16mm
Axial Compression25mm
Lateral Deflection22mm
Angular Deflection5ยฐ

โ“ Frequently Asked Questions (Applications)