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China Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch logo
Jiaxing Burgmann Mechanical Seal Co., Ltd. Jiashan King Kong Branch
Superior mechanical seals that reduce operatting costs and improve system reliability from shutdown to shutdown~
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109 Series Water Pump Seal

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109 Series Water Pump Seal

Brand Name : JG

Model Number : 126

Certification : FDA certificate

Place of Origin : Zhejiang, China

MOQ : 1pcs

Price : USD

Payment Terms : T/T,Western Union,MoneyGram

Supply Ability : 1000PCS

Delivery Time : 3~10DAYS

Packaging Details : white box

product name : 109 Series Water Pump Seal

Size : 10 mm – 100 mm

Application : Water Pump Seal

HS code : 8484200090

Pressure : ≤ 1.2 MPa (12 bar)

Temperature : –20 °C to +120 °C

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109 Series Water Pump Seal
The 109 series mechanical seal is a core precision component designed to prevent leakage in industrial pumps, pipeline pumps, and water ring vacuum pumps. Its design combines structural robustness with operational flexibility:
  • Precision Mating Faces: The rotating face (driven by the shaft) and the stationary face (fixed to the pump housing) are precision‑machined. Under the combined action of spring pressure and fluid pressure, they achieve intimate contact.
  • Fluid Film Lubrication: An extremely thin fluid film, on the order of microns, forms between the sealing faces. This film acts as a compliant cushion to prevent liquid from escaping along the rotating shaft, while also providing lubrication and heat dissipation at high rotational speeds - significantly reducing face wear.
  • Elastic Compensation: The assembly incorporates high‑strength springs and secondary sealing elements that automatically compensate for axial runout and installation misalignment, ensuring long‑term sealing stability.
Product Advantages & Application Benefits
Superior Materials - Adaptable to Diverse Service Conditions
For different pumped media, we offer various material pairings:
  • Seal Face Materials: High‑hardness Silicon Carbide (SiC), Ceramic, or high‑lubricity Carbon (Graphite), offering excellent wear resistance and chemical corrosion resistance.
  • Secondary Seals: Available in NBR, EPDM, or Viton® (FKM) high‑quality elastomers, reliably handling clean water, oils, industrial wastewater, and certain acid/alkali media.
Stable Operation - Extremely Low Maintenance Costs
Compared to conventional packing (gland packing), the 109 series mechanical seal offers significant advantages:
  • Near‑Zero Leakage: Dramatically reduces fluid loss, environmental contamination, and energy waste caused by dripping.
  • Long Service Life: Reduces maintenance frequency and downtime, ensuring continuous operation in water supply, drainage, environmental protection, and chemical production lines.
Technical Specifications
Parameter Specification Notes
Shaft Diameter Range 10 mm - 100 mm Covers common industrial pump shaft sizes
Operating Pressure ≤ 1.2 MPa (12 bar) Suitable for medium‑ and low‑pressure water supply & drainage systems
Operating Temperature -20 °C to +120 °C Depends on elastomer material (NBR / EPDM / Viton®)
Peripheral (Surface) Velocity ≤ 10 m/s Compatible with standard motor speeds (1450 / 2900 rpm)
Allowable Axial Shift (Compensation) ± 0.5 mm Provides good elastic displacement compensation
Balance Type Unbalanced design Simple construction; easy installation and maintenance
Key Advantages
  • Spring unit averted from the product so no sticking and clogging of the springs
  • Safe operation (no fractures) because of seal face locking by square pin
  • Suitable for pressure reversals
  • Operation in vacuum without additional seat locking possible
  • No damage of the shaft by a dynamically loaded O-Ring
  • Small installation sizes
  • Best suitable for conversions, no adaptations of the pump
  • Insensitive to solid containing and abrasive media
  • Advantages of a balanced seal even with plain shafts
  • Insensitive to shaft movements because of the stationary design
Applications
  • Water and waste water technology
  • Chemical industry
  • Refining technology
  • Dirty, abrasive and solid containing media
  • Fugitive hydrocarbons (no API seal!)
  • Sticky and stringy media
  • Chemical standard pumps
  • Sewage pumps
Technical FAQ: 109 Series Mechanical Seal
Q1: How does the 109 series seal perform in the complex operating conditions of a water ring vacuum pump?
A: Water ring vacuum pumps are prone to cavitation and pressure fluctuations during operation. The 109 series utilizes the compensating capability of its single‑spring design to respond rapidly to small axial movements. Additionally, we recommend selecting silicon carbide (SiC) seal faces to withstand mechanical shocks from dry running or fine abrasives present in the pumped fluid.
Q2: Why does my mechanical seal exhibit slight leakage immediately after startup?
A: A brief "break‑in" period may occur after initial installation. As long as the fluid film stabilizes within a few minutes, the leakage will stop on its own. If leakage persists, check whether the secondary seal was damaged during installation or if foreign particles have contaminated the sealing faces.
Q3: What advantages does the 109 series mechanical seal offer over conventional packing (gland packing)?
A: The core advantages are:
  • No shaft wear: Packing directly rubs against the shaft sleeve, whereas in a mechanical seal, wear occurs only between the rotating and stationary faces.
  • Lower power consumption: The coefficient of friction of a mechanical seal is extremely low, effectively reducing motor load.
  • No daily adjustment: Spring compression automatically compensates for face wear, eliminating the need for frequent manual gland adjustments.
Shipping & Payment Terms
  • Port of Loading: Shanghai
  • Shipping Method: DHL, UPS, FEDEX, TNT, etc
  • Payment Terms: T/T, Western Union, Money Gram
Our Services
  • OEM/ODM orders are available for our factory
  • Accept customized mechanical seals according to your drawing or requirements
  • Small quantity is accepted
  • Provides excellent quality with competitive price

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