VK302

• Temperature： -40 ~ 200°C (-40 ~ 392°F )
• Pressure： Up to 355 psig (25 kg/cm²G)

• Surface Speed： Up to 3940 fpm (20 m/s)

【Standard Materials】

• Stationary Ring：Carbon Graphite / Silicon Carbide / Tungsten Carbide
• Rotary Ring：Silicon Carbide / Tungsten Carbide
• Metal Parts：316 SS / 304 SS / 316L SS / 316Ti SS / Duplex Stainless / Alloy C-276 / Titanium / Monel®
• Elastomeric O-rings：FKM / AFLAS / NBR / EPDM / TV / FFKM (SceniRAZ^TM / Chemraz® / Kalrez®)
• Gland Gasket：Glass-Filled PTFE / Non- Asbestos / O-Ring
• Springs：316 SS / Alloy C-276 / Inconel®

※ More customized sealing solutions. Please feel free to contact us.

• Specific equipment application, mechanical seal for Viking Gear Pump.
  
• Integral drive structure: Drop-proof springs are pre-installed on the drive structure to facilitate quicker repairs, disassembly, and assembly.
• Unwetted Spring Design: Uncontaminated springs, less stress, no corrosion or hang-up condition.
• Common spring design: Equal distribution of spring load between the inner & outer seal faces, compensates shaft end-play.
• Self-alignment capability: Tolerates shaft's greater run-out.
• Dual balance design (external & internal): In the event of upset or reversal pressure, seal faces will NOT be blown open.
• Monolithic faces: NO distortion or deformation,  provide superior wear & corrosion resistance. 
• Micro-polished O-ring seat: Glossy contact surface, prevents o-ring adherence, promotes smooth & flexible movement of secondary seal. 
• Highly efficient pumping ring: Precision pumping ring is used to optimize the external buffer or cooling water circulation, improving the MTBF (Mean Time Between Failure).
• VOC leakage control: With installation of seal pots, near-zero VOC leakage can be achieved, while meeting environmental protection requirements.
• API piping plan52/53: Conformed to standard API 682; optioned to operate in un-pressurized or pressurized system to prevent variation in operating pressure and enhance the service life and safety of the shaft seal.
• Outer deflector  ring (groove cooling deflector): Effectively guide barrier or buffer fluid to enter and exit the flush sealing surface, enhancing the heat exchange rate and cooling efficiency. 
• Ring-groove thrust collar design
• Claw-shaped drive structure design

• Viking pump and gear pump for handling high viscosity.
• Huge heavy oil process pump as API 682 standard.
• High safety level required for handling hazardous and toxic fluids.
• Widely applied in resin and rubber industries. 
• Applied in handling high viscosity, contaminant, and easy to crystallization fluids.
• Pulp and paper, petrochemical, foodstuff processing, chemical processing, pharmaceutical, power plant, and wastewater treatment.