Enviro Solutions
Transfer Pumps

Industrial Wastewater
Treatment Chemicals
Reverse Osmosis

Contact Information

Distributors / Resellers Program
E-Mail: sales@envirosolutions.com

A Division of LST Industries L.L.C.
625 Humble Avenue San Antonio TX 78225
Phone: 210-696-6300 Fax: 210-927-3728

Transfer Pumps

This page features all new pumps awaiting your order.
A used vertical transfer pump is available for sale on the Used Machinery Page!

Chemical Feed Pumps

Air Operated Diaphragm Sludge Pumps

Transfer Pumps

Specialty Pumps

G Series

'G' Series Self-Priming Centrifugal pumps - the self-priming ability,
chemical resistance, light weight and basket strainer make this an ideal chemical
transfer, waste treatment, emergency/backup or filter pump. It is made in either Noryl
or Ryton®, providing a maximum range of chemical resistance.

Available with 316 stainless steel, Hastelloy® C or titanium internal hardware or complete non-metallic solution contact
Large cover makes initial priming and removal of the strainer quick and easy
Will reprime to 15 ft. (4.6m)
Flow rates: to 100 GPM or 73 ft. TDH @ 60 Hz (330 LPM or 15m @ 50 Hz)
Shaft sleeve is same material as pump
Combination of 2"/1 1/2" NPT connections (BSP threads available for Noryl pump only)
Electric Motor DrivenElectric Motor Driven
Pedestal MountedPedestal Mounted

Magnetic Coupled

Magnetic Coupled, Seal-Less Centrifugal pumps are molded from non-metallic corrosion
resistant material. They can be constructed to accommodate a wide variety of applications such
as photoprocessing, water & waste treatment, semiconductor, industrial chemical processing,
high purity DI & RO water, paper & pulp chemical processing, fume scrubbing and plating.

Z Series Magnetic Coupled
Z Series
X Series Magnetic Pump
X Series
Casing & Impeller: polypropylene (glass fiber filled) or ETFE (carbon fiber filled)
Internals: alumina-ceramic or SiC, Rulon® or Ceramic/HD Carbon/Rulon®, Viton® or EPDM O-ring alumina-ceramic, Ryton®, Rulon®-Teflon® or SiC Viton® or EPDM O-ring
Flow rate: up to 145 GPM or 118 ft.TDH (548 LPM or 35.8m TDH) up to 29 GPM or 62 ft. TDH (110 LPM or 19m TDH)
Seal-less pump: provides zero leakage & low friction for energy efficiency
High efficiency
closed impellers:
provides vibration-free operation

TEFC Motors:Compact pump & motor design:

powerful permanent magnets for highly efficient transmission

I Series

I Series Self-Priming Centrifugal pumps are lightweight and provide corrosion resistance and efficient performance for a wide variety of water and corrosive liquid applications - for chemicals, wastes, acids and other industrial liquids. Also ideal for use in the oil field, aquaculture and agriculture.

  • Corrosion resistant materials: 316 stainless steel casing, fiberglass reinforced polyester, polypropylene, or Ryton® internals
  • Choice of drives: gasoline engine, electric, hydraulic or pneumatic
  • Rubber components: choice of BUNA, EPDM or Viton®
  • Shaft seals: choice of carbon & ceramic, or silicon carbide
  • Suction lift to 20 ft. (6m) vertical
  • Flow rates: to 170 GPM or 75 ft. TDH (to 650 LPM or 23m TDH)
  • Dual ports 1 1/2" and 2", NPT or BSP
  • Built-in check valve and double flush volute
  • Close-coupled, long coupled or pedestal mounted

Electric Motor Driven

Performance Curve PDF


Vertical Pumps

The O Series makes up our line of electric driven, close-coupled vertical pumps, for various industrial and OEM applications. Construction options include CPVC, PVDF, polypropylene.

  • Chemically resistant plastic construction
  • Stainless steel hardware
  • Viton O-ring(s) standard, EPDM optional
  • Close-coupled to a 3450 RPM, TEFC, electric motor
  • Epoxy painted motor


Performance Curve PDF


S Series Pumps

Self-Priming Centrifugal pumps are lightweight, chemically resistant pumps for general service on water, salt water, waste water, mild acids and bases. They feature non-metallic solution contact or stainless steel internal fasteners; Viton®, ethylene propylene or Buna O-rings and gasket with stainless steel external fasteners. The pumps are molded of tough, glass-reinforced polyester, polypropylene or Ryton®. Polyester models are available with or without lined volute for abrasion resistance.

All pumps include a built-in check valve, feature easy servicing and during pumping, a self-cleaning double volute keeps pump free of settled solids.

  • Choice of materials: pump constructed of: polyester, polypropylene or Ryton®. Suitable elastomers, and stainless steel or non-metallic fasteners for resistance to chemical attack
  • Choice of drives: electric motor, gasoline driven, hydraulic or pneumatic driven
  • Close-coupled, long-coupled or pedestal mounted
  • Built-in check valve
  • Flow rates: to 280 U.S. GPM or 120 ft. TDH @ 60 Hz (to 883 LPM or 25.4m TDH @ 50 Hz)
  • Suction lift to 25 ft. (7.6m) vertical
  • 1 1/2", 2" or 3" ports, NPT, BSP available in polyester only

Electric Motor Driven

S Series Pump Electric Motor Driven

Performance Curve PDF

Long Coupled


Performance Curve PDF

Pedestal Mounted


Performance Curve PDF


PC Series Pumps

For pumping, transferring or recirculating of acids, plating solutions, photographic chemicals, fume scrubber, waste water, etching and cleaning solutions. All major pump parts are precision molded of tough, corrosion resistant glass-reinforced polyester, polypropylene, Ryton or Noryl thermoplastic. These high strength plastics provide resistance to many acids, bases, solvents and salt water at temperatures as high as 200°F (93°C).

  • Chemical resistant materials: glass reinforced Noryl, polyester, polypropylene or Ryton® construction
  • Choice of drives: gasoline engine, electric, hydraulic or pneumatic motors
  • Elastomers include your choice of Viton®, EPDM or Buna
  • Standard fasteners are stainless steel, also available with titanium or Hastelloy® C internal fasteners, shaft seal and shaft adapter and Polymar® non-metallic shaft seal for pumping highly corrosive liquids.
  • Available close-coupled or flexible coupled to electric motors
  • Non-metallic solution contact models available in all stock materials
  • Flow rates: to 230 GPM or 94 ft. TDH @ 60 Hz (725 LPM or 20m @ 50 Hz)
  • 1 1/2", 2" and 3" NPT threaded ports
  • 1 1/2" and 2" BSP threads available



Performance Curve PDF