Mechanical Seal Centrifugal Pumps


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ISO 9001:2015 Certified

Mag-Drive Close Couple SM200 Series

Mag-Drive Close Couple SM400 Series

Mag-Drive Close Couple SM900 Series

Mag-Drive Close Couple RM100 Series

Metallic S200 Series Cutway

Metallic R100 Series

Metallic S900 Series

Non-Metallic Ryton S900

Non-Metallic Ryton S200

Chemsteel Features

  • Flows from 0.5 to 30 GPM at 1750 RPM
  • Pressure from 0 to 150 PSI
  • Gear & bearing combinations of metallic and nonmetallic wear surfaces.
  • Slotted bearings to lubricate shaft and gear surfaces.
  • Hydraulic porting to balance axial thrust and to reduce wear.
  • Ample port sizing to reduce the likelihood of cavitation when inlet pressure is marginal.
  • Effective housing seals with elastic memory prevent leakage of corrosives.
  • Recirculation heat port versatility.
  • Containment can flush and drain connections.
  • 316 Stainless Steel
  • Alloy C
  • Non-Metallic - Ryton
  • Packing - Lip - Mechanical - Seal-less
  • NEMA Close Coupled Adapters
  • Accessories

Seal-Less Magnetic Drive SM207 Pump Dimensions

S207 Metallic Close Coupled Pump Dimensions

S207 Non-Metallic Close Coupled Pump Dimensions

Seal Housing

Ported for flush, drain, barrier fluid and lantern packing lubrication Access to
seals without removal of cover

Upper Drive Standard

Lends itself to in-line pump seal maintenance without leakage of trapped
chemicals Easily converted to a lower drive configuration

Optional Bearing Flush Ports

To extend bearing life when pumping non-lubricating fluids or fluids with a small degree of fine solids

Interfacing to World Standards

NPT & BSPT porting Metric pump hardware Close-coupled adapters for NEMA and IEC standard motor frame sizes

BI-Directional Operation

For applications requiring reversing flow

Body/Cover Static O-Rings

Teflon® encapsulating silicone for sealing with a memory

Combined Bearing ∓ Wearplate

Full size bearings match the gear diameter and eliminate the need for separate
wear plates Gear trimming for desired flow rates Made of carbon-graphite,
Teflon© or Rulon©

Helical Gears

Noise reduction up to 10 db

Extended Life

Gear & bearing combinations of metallic and non-metallic wear surfaces Slotted bearings to lubricate shaft and gear surfaces Hydraulic porting to balance axial thrust and reduce wear

Metallic & Non-Metallic

Wide range of capability Effective weight and cost selection

Dynamic Seal Options Include

Single or double mechanical wedge & bellows styles Standard compression packing Lantern Ring compression packing Lip seals

Chemsteel Tandem Pumps

Tandem Pumps double the output flow for a single fluid.

Or with isolation, handle different fluids in direct ratio to each other.

Mag Drive Catalyst Pumps

Chemsteel Magnetic Gear Pumps are engineered to safely handle hazardous, toxic, highly corrosive or explosive chemicals.

Available in: Stainless Steel, Alloy C and Ryton


Polyphenylene Sulfide PPS, an engineered, reinforced plastic, offering a wide range of chemical compatibility, physical stability, and high temperature resistance (to 200° F).

Type 316

An all purpose austenitic stainless, excellent corrosion resistance; premium choice of all 300 series alloys.

Alloy C

Most used of exotic high/nickel alloys. Superior corrosion resistance for severe alkaline and acidic pumping applications.


Precision machined metallic gears of 316SS, W88 stainless, and Alloy C. Also available in glass reinforced Teflon©, Ryton© and carbon reinforced PEEK.


Shafts are 316 stainless steel or Alloy C.


Single and/or double mechanical seals are offered in elastomer bellows and Teflon© wedge designs. Bellows design available with Viton© or EPDM formed elastomer shaft seal. Wedge designs available with Teflon© wedge shaft seal and perfluoroelastomer stationary seat o-rings. Packing materials: Teflon©, Grafoil© and Teflon©/Graphite.

Body/Cover O-Rings

Teflon© encapsulating, silicone o-rings provide elastic memory to assure an effective long lasting seal. Avoiding the re-torquing required of pumps using pure TFE.

Close coupled mag drive pumps

Body Stainless Steel, Ryton and Alloy C constructions

Gears Ryton©, Peek, 316 SS, W88, Alloy C and Teflon©

Shafts 316 SS or Alloy C

Bearings Carbon, Teflon© and Rulon©

  • Neodymium or Samarium cobalt magnets
  • Close Coupled Adapters for NEMA and IEC standard motor frame sizes
  • 316 Stainless Steel, Ryton and Alloy C containment cans
  • 1/2 to 30 GPM