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Vertical Sump
Centrifugal Pumps

Pump Curves available at
Provide maintenance-free, completely drainable, MST strike tank transfer pumps (3) for nuclear waste clean-up application

Caustic waste solution (salt slurry) with 0.07% by weight solids, 1.3 SG, 95°
F, 10-14 pH, Radioactive ambient*

Duty: 120 GPM @63ft. Total Head

*Top of tank (Affects Motor): Gamma Center of tank (Affects Pump): Alpha & Beta
Model: 6000 VEP-2 (A20)
Commercial vertical centrifugal sump pump with submerged product lubricated sleeve bearing (1) fabricated from SRS-specified materials
Suction: 2-1/2" FF Flange (150#)
Discharge: (1-1/2") 2" Non-fitted at the m.p. (23.75 x 31.38 x 3/4" Thick type 316 S/S)
  1. Material of Construction: 316(L) S/S (Shaft: 2507 duplex S/S)
  2. Pre-formed graphoil packing rings (4) at the mounting plate
  3. Casing gasket: 321 Ag (Stainless Steel/ Silver)
  4. Impeller: Enclosed design, 11.75" diameter, with drain holes (2) at hub and no wipe-out vanes
  5. Motor: 10 hp, 1170 RPM, TEFC 256TC Reliance Electric with radiation resistant Class H/RH nuclear insulation
  6. Thrust bearing: shielded and packed for life with Exxon Unirex grease and protected by graphoil packing ring above and below
  7. Sleeve Bearing: Praxair Stellite 6B (on 2507 duplex S/S shaft) vs. Nitronic 60 with dual fluted I.D.
  8. Extension below mounting plate: 70.94" to suction flange
  9. Certified Hydro-static test (100 PSIG: Casing) and witnessed performance test
  10. Certified vibration analysis (<0.20 in/sec Peak Velocity at duty point measured at motor thrust bearing)
Naval wastewater treatment facility required special cantilever vertical sump pump for transfer of waste water with traces of notroglycerine, 20GPM @ 43 FT TH.
Model: 5000 VEC-3
Material: 316 Stainless Steel
Size: 1.5" FF FL Discharge at mounting plate
  1. Completely self-draining during removal from sump.
  2. No rubbing, wearing or support parts below the mounting plate. Can run dry.
  3. 44" extension below the mounting plate.
  4. Motor: 2 HP, 1150 RPM, 460 V, explosion-proof, (CL.I, GRPS. C & D), 184TC frame.
  5. Teflon gasketing.



Pumping chemical fill line for waste water treatment system consisting of 98% H 2SO 4and 10FeCl 3at 120°F.
Model: 4000 VE-1
Material: Hastelloy B-2; Extension: 44" below Mounting Plate
Size: 1.5" Non-fitted x 1" FNPT at Housing
Motor: Delco 7EH, 1.5 HP, 1750 RPM
  1. Performance: 15 GPM at 40 FT TH.
  2. 316L Stainless Steel mounting plate 22" x 32" x 1/2"
  3. 316L Stainless Steel thrust bearing support and motor support.
  4. Vapor seal at mounting plate.
  5. Rulon J, Product Flush, Bottom Bearing Assembly.

Vertical pump for Molten Salts at 900°F; no submerged bearings allowed; 200 GPM at 12 FT TH.

Model: 4000 VEC-HDI
Vertical, Cantilever Shaft Centrifugal Pump
Material: Mild Steel
Size: 4 x 4 FL (150#) - 17
  1. Combination Impeller/Repeller requires no submerged waering or support parts (including a Throttle Bushing).
  2. Vertical Extension: 24".
  3. Size: 3" Discharge.
  4. Impeller: 6.75" Diameter.
  5. Motor: 3 HP, 1150 RPM, TEFC.
  1. Empty the wash-down sump at bottling plant.
  2. Survive high-pressure hose downs.
  3. Cover the sump (to protect employees) and allow sump to fill only with runoff water, floor dirt and bits of broken glass.

Model: 3000VEC-1-Vor
Cantilever Design, Vertical Sump Pump
Material: Stainless Steel
Size: 1.5" Discharge
Duty: 40 GPM @ 35 FT TH

  1. Recessed (Vortex) impeller.
  2. Malcomized (case hardened) casing, discharge elbow and impeller.
  3. Custom designed, raised and screened-in mounting plate (all Stainless Steel).
  4. Baldor washdown-duty motor: 2 HP, 1750 RPM.
  6. XP limit switch and 316 Stainless Steel float, rod & stops.
Squeeze a duplex vertical Sump Pump through a 19-1/2" diameter opening in a 10 FT deep tank: Aluminum products manufacturer's rigid container sheet plant required 20 GPM @ 25 FT TH (At the impeller) of 96% H 2SO 4, 1.86 SG, Ambient P.T.
Model: 3000VE-1 (AA)
Duplex Vertical Sump Pump
Size: 1.5" FF FL (150#) at the mounting plates (22" Dia. Semi-Circle x 1/2" 316 Stainless Steel)
  1. Material of construction: Certified Carpanter 20 Cb-3.
  2. Included 316 Stainless Steel cover plate to match 20" 150# flange (27-1/2" O.D. x 1/2" 316 Stainless Steel) with Teflon gaskets.
  3. Extension below M.P.: 120" (10 FT).
  4. Cast iron parts (Above the mounting plates) sandblasted and protected by "Steel-lt" 316L Stainless Steel Epoxy Coating.
  5. Designed to allow easy removal of either pump without disturbing the other or the cover plate.
  6. Motors: 1 HP, 1750 RPM, TEFC wash-down duty, 143TC frame.
  7. Shaft-Support sleeve bearings (3 sets per pump): Nickel Graphalloy, product flushed.



Aircraft manufacturer required low maintenance vertical sump pump for parts cleaning washdown removal to 100°F, subject to exposure to dilute NaOH, HNO 3, HCl, H 2SO 4, H 2CrO 4and HF; 20 GPM @ 60 FT TH.
Model: 2000VEC-1
Duplex Vertical Cantilever
Material: 316 Stainless Steel Fitted CPVC
Size: (Suction) 1.5" FNPT w/11" Tailpipe (Discharge) 1" FF FL (150#) at M.P.
  1. Completely DRY-RUNNlNG capability (no rubbing, wearing or support parts below the mounting plate).
  2. Shaft extension: 23-1/2" below the mounting plates (16 x 18 x 1/2" S/S).
  3. Cover plate: 44 x 44 x 1-1/2" thick PVC.
  4. Includes: Square D mechanical alternator with high-water alarm circuit, 316-S/S float 8 rod; independently mounted.
  5. Motors: 2 HP, 3450 RPM, TEFC, 1.15 SF, chemical processing design, 145TC frame (Baldor).

The pumping of various "Fluorides" required a vertical inline centrifugal pump using Hastelloy C-22 as the material of construction.

Model: 3000DVL-H
Vertical Inline, Double Sealed, Centrifugal Booster Pump.
Material: Hastelloy C-22
  1. Double mechanical seal, type 9V (silicon carbide mating faces, viton o-rings on seats, Hastelloy metal parts) with auxillary liquid finish.
  2. Size: 1-1/2" x 1-1/2" FF FL.
  3. Impeller: 4-1/2" diameter.
  4. Application: 20 GPM at 18 Ft TH.
  5. Motor: 1 HP, 1750 RPM, TEFC.

Manufacturer of specialty chemicals mandated by EPA to install pumping system for containment of runoff, filter backwash exchangers and possible chemical spills: 200 GPM @ 46 Ft. TH, dilute quantities of HCI, NaOH and various solvents.

Model: 5000 DVL-VEC
Vertical In-Line, Cantilever Shaft
  1. 316 s/s construction.
  2. Integral, round mounting plate.
  3. Back pull-out design.
  4. 3x3 RF FL connections.
  5. 7-1/2 HP, 1750 RPM, XP (1.15 SF) with drip cover.
  6. Certified QHP and Hydrostatic (225PSIG) tests.
  7. (1-7/8") Sealol 680 SC-T mechanical seal (silicon carbide vs. high-purity ceramic, with floating seat).
  8. TFE gaskets.
In nearly inaccessible area with dripping, fuming NHO 3atmosphere, pump concentrated NHO 3(1.6 specific gravity) 5 GPM @ 110 FT TH. Pump to be capable of running dry (no process solution flowing) for minimum of 2 hours with no leakage or damage.
Model: 3000 DVL-H
Double-Sealed In-Line Vertical
All pump parts, fasteners and exposed motor parts
316 Stainless Steel. Total weight of pump and motor
assembly did not exceed 65 lbs.
  1. PICATTI 316 Stainless Steel motor: 2 HP, 3450 RPM, 56 C frame, TEFC.
  2. Double mechanical Seal: silicon carbide mating faces, viton elastomers and 316 S/S metal parts.
  3. 316 S/S shaft extension with integral double seal chamber cooling fan.
  4. 5-1/2" diameter impeller with 1/8" wide vanes for built-in flow restriction.
  5. 3/4 x 3/4 FF FL.
  6. Quality Assurance Tests:
    a. QHP
    b. Seal Chamber non-leakage (static & dynamic)
    c. Pump dry run/Seal Chamber Temperature