QB 61 Pusher Seal designed for efficient water management and industrial use.

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QB 61 Pusher Seal designed for efficient water management and industrial use.QB 61 Pusher Seal

NSF International has rigorously tested and evaluated the QB 61 pusher seal, and it is NSF/ANSI/CAN 61 & 372 certified for drinking water applications from source to tap. The NSF certifications include all wetted components of the seal and show how QB 61 seals exceed regulatory criteria for drinking water quality, giving municipalities confidence in seal selection and operation.

 

 

 

 

 

QB 61 Pusher Seal for Water and Industrial Applications

Benefit

  • Improve water quality with NSF/ANSI/CAN 61 certified products that meet demanding industry and regulatory criteria.
  • Third-party, unbiased review from a well-known certifying agency.
  • Product quality and consistency supported by regular NSF inspections and testing to keep certification.
  • Advanced spring holder design including radial apertures for recirculation and self-cleaning at both end of the springs.
  • Big cross-section seal faces designed for maximum variety of use.
  • Solid drive keys effectively convey torque stresses from the seal face without distortion.

Specification

Standards: NSF/ANSI/CAN 61 & 372

Size Range: 22.2 to 168.2 mm (0.875 – 6.625 in)

Operating Parameters

  • Pressure: up to 51.7 bar (750 psi)
  • Temperature: -40° to 204°C (-40°F to 400°F)
  • Speed: up to 23 m/s (75 fps)

Certified materials and sizes

  • Metal parts: 316 stainless steel
  • Seal faces: Reaction bonded silicon carbide vs. reaction bonded silicon carbide, premium resin carbon vs. reaction bonded silicon carbide
  • Gaskets: Fluoroelastomer
  • Sizes: 22 to 168 mm (0.875 to 6.625 in.)

Related Industries

  • Water
    • Water Management
    • Wastewater
    • Agriculture & Irrigation
    • Flood Control System
    • Desalination