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All Results Based on Water Viscosity.

SM935 M

CHEMSTEEL™ pumps are designed to handle highly corrosive liquids that must be pumped under pressure. Manufactured to extremely precise tolerance, the CHEMSTEEL™ pump line prevents system contamination while maintaining the purity and integrity of the liquid being pumped. Its rugged, three-section, O-ring sealed thru-bolt construction provides ease of servicing and parts replacement.

Helical gearing offers noise reduction by as much as 10db.

Additionally, CHEMSTEEL™ pumps offer bi-directional operation for applications requiring reversing flow.

A full range of accessories are available including:

  • Line mounted pressure relief valves
  • Pump mounting foot for use with footless motors
  • Pedestal assembly

FEATURES

Gear/bearing design allows for “trimming” for optimizing the pump’s maximum flow to reach minimum turndown or to match flow to a specific OEM’s requirement.

Special materials combinations are available for specific liquids:

  • Stainless or Alloy C housing construction.
  • Gears available in metallic 316 stainless, W88 stainless and Alloy C. Also in Polytetrafluoroethylene, polyphenylenesulfide, and  polyetheretherketone.
  • Shafts are 316 stainless steel or Alloy C.
  • Bearings available in Carbon, Polytetrafluoroethylene and Polytetrafluoroethylene

DRIVE

The pump is driven directly from the electric motor shaft by means of a flexible coupling.  A close coupled adapter connects the pump to the motor.

LIQUIDS & TEMPERATURES

This pump is suitable to handle clear lubricating and non lubricating fluids at temperatures to 450F.  These pumps will handle viscous fluids to 100,000 cps (462,000 SSU) at reduced shaft speeds.

SUCTION LIFT

This pump has a suction lift capability of 20 feet for a new pump.  Though gear pumps are self priming, a foot valve is recommended.  If possible, wet gears with the liquid to be pumped for the first dry start.  Liquid retained in the system and gear chambers serves to wet the pump on subsequent starts.

PERFORMANCE

SM935-Flow -Chart _REV

EXPLODED VIEW & PARTS LIST

Sm 923-930-935-946-exploded -view _REV

OB Chemsteel Repair Kits (1) SM935 M

DIMENSIONS

RM9 Dim With Pedestal

MODEL CHART

SM935 Model Chart

MAINTENANCE

A three-part housing provides easy disassembly and service. Full size bearings match the gear diameter, and eliminate the need for separate wear plates. TFE encapsulating silicone o-ring pump housing seals provide elastic memory to assure an effective long lasting seal and thus avoiding the re-torqueing required of pumps using pure TFE.

To order a CHEMKIT™ parts kit, simply add a “K” to the end of the model number.

A repair kit contains the following parts: bearings, gears, o-rings, shafts, keys, c clips, and retaining ring. 

LIFE CYCLE/COST OF OWNERSHIP

Pump design and materials selection, together provide the longest life available from a gear pump.

Key attributes include:

  • 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 & drain connections.

FIT

Connections are 1 1/2” female NPT or BSPT, pump hardware is metric and close couple adapters mount to both NEMA and IEC standard motor frame sizes for worldwide acceptance. The port size is the same as competitive pumps.