Skip to Content

Tag Archive: Seal-Less

Bredel Heavy Duty Hose Pumps: Sealless & Valveless with Intrinsic Spill Containment

Posted on by Sara Springer

Bredel Hose Pumps: No Seals, No Valves & Only One Wetted PartBredel 50 Heavy Duty Hose Pump

Bredel, a Watson Marlow brand, makes Heavy Duty hose pumps that operate with pressures to 232 psi and flow rates to 350 gpm. Simple to own and operate, Bredel HD Hose Pumps handle abrasive slurries, corrosive acids and gaseous liquids as easily as water with no vapor locking and they can run dry indefinitely without damage. Bredel pumps save time and money by successfully handling the toughest applications, in a broad range of industries with less maintenance and downtime then the competition.

Tag Archive: Seal-Less

Rotan MD Magnetic Driven Pumps for Molten Sulfur Service

Posted on by Sara Springer

Rotan’s MD Pumps Successful in Difficult Molten Sulfur Applications

Rotan MD Series Pump CutawayThe sealless design of Rotan MD Pumps eliminates the possibility of moisture contacting the sulfur during pumping. With the heating jacket and Rotan’s advanced, patented cooling system the sulfur is maintained at it’s optimal temperature while the magnet is constantly cooled.

Tag Archive: Seal-Less

CP Pumpen Offers MKP-Bio Pump Metallic Mag-Drive Pumps

Posted on by Sara Springer

A Mag-Drive Pump for Pharmaceutical, Biotech and Food Industries. CP Pumpen MKP-Bio Pump

The MKP-Bio pump has been developed specifically for aseptic applications. 

Features and Benefits of MKP-Bio Pump:

  • Seal-less Design with Zero Dead Space
  • Design Pressure PN 16 Allows Wide Application Range
  • Complies with 3A, EHEDG, VDMA 24432 and EN 12462 Requirements
  • CIP  and SIP Capable, EHEDG Tested
  • Pump Can be Dismantled Without Special Tools for Validation Purposes
  • More…


Tag Archive: Seal-Less

Liquiflo’s POLY-GUARD Pump: Metallic Pump Performance – Sealless, Plastic Pump Cababilities

Posted on by Sara Springer

Sealless, Non-Metallic Wetted Parts with Metallic Gear Pump PerformanceLiquiflo Poly Guard Pump

The Liquiflo POLYGUARD has NO metallic wetted parts, a mag-drive coupling with a PFA lined Containment Can and a stainless steel housing lined with PFA.  Poly-Guard combines the chemical resistance of a fluoropolymer with the strength of stainless steel. Max temperatures to 200° F & differential pressures up to 100 psi.

Typical Applications: inorganic acids, difficult to handle bases or salts, Hydrochloric Acid, Ferric Chloride, Sulfuric Acid, Hydrofluoric Acid, Sodium Hypochlorite, Nitric Acid, Sodium Hydroxide and Chromic.

POLY-GUARD Features & Benefits:

  • Internal/external protection against corrosive fluids & harsh environments
  • Strong stainless steel body:
    • Handles pipe stresses & other harsh industrial conditions
  • Fluoropolymer lined for protection against corrosive liquids
    • Exempt from wicking problems associated with fiber-reinforced housings
    • Retains the pressure integrity expected of all metal pumps
  • Internal components: PEEK, Kynar (PVDF), Teflon, Silicon Carbide and TTZ
  • Pulseless flow for metering & transfer applications
  • Temperatures to 200° f
  • Differential pressures up to 100 psi
  • Available removable port fittings including flanges & sanitary ports
  • Self-sintered SiC shafts with exceptional chemical resistance & wear resistance
  • Alloy-C or carbon fiber Containment Cans lined with PFA:
    • “Alloy-C Can” limits eddy current development & subsequent heat generation
    • “Carbon Fiber Can” eliminates eddy currents altogether!