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All Results Based on Water Viscosity.

SM200 NM

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

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:

  • Reinforced polyphenylenesulfide housing construction.
  • Gears available in Metallic Alloy C. Also in Polytetrafluoroethylenepolyphenylenesulfide and polyetheretherketone
  • Shafts are Alloy C and 316 Stainless Steel.
  • Bearings available in Carbon and Polytetrafluoroethylene
  • Neodymium Iron Magnet
  • Polyphenylenesulfidecontainment can

(Optional Alloy C containment can)

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 200F.  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.

EXPLODED VIEW & PARTS LIST

SM200NM Bottom Row

OB Chemsteel Repair Kits (1) SM200 NM

MODEL CHARTSM200NM Series Model Chart-1

 

SM200NM Series Model Chart-2

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-torquing 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 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 prevent leakage of corrosives.

FIT

Connections are 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 world wide acceptance.