Centrifugal Pump 118 Series

Inside Front CoverProper Pump SelectonCareful selection and installation of the correct Dragon Centrifugal Pump will result in a unit that will provide long-lasting and dependable service. Selecting a pump with excessive pressure capability means extra horsepowerexpense. Centrifugal pumps have much different horsepower input characteristics than positive displacementpumps. However, if the pressure requirements on the discharge side are indefinite, or if for some other reason thedischarge pressure is much lower than expected, the pump will handle considerably more fluid and require morehorsepower thanoriginally selected to drive the pump. A valve or flow restriction will then be required to increasethe discharge pressure and reduce the horsepower needed to drive the pump. To assure proper pump selection, the following information is required:1. Suction conditions:A. Size of suction pipingB. Length of suction lineC. Flooded suction (positive)D. Suction lift (negative)2. Total discharge head required.3. Rate of flow desired.4. Type of driver desired and RPM (electric motor or engine)5. Specific gravity or weight of fluid to be pumped.6. Temperature of fluid.7. Any information available as to the corrosiveness or abrasiveness of the fluidto be handled.Once this information is obtained it is used to calculate:GPM = Rate of flow desired HD. FT. = Total dynamic head SP. GR. = Specific gravity of fluidPUMP SIZE AND HORSEPOWER SELECTION FROM PERFORMANCE CURVESUsing the desired GPM and head feet, find the pump size and speed by looking at the performance curves.Mark the desired operating point on the performance curve. This operating point may appear on more than onecurve because of different speeds and impeller sizes available. Use the variable speed curves for gasoline ordiesel engines. If an electric motor is to be used, remember the lower the RPM, the longer the service-life of thepump. Now, decide on the curve that best suits the application of desired GPM, head feet, and RPM. This curvewill designate the proper pump size. Refer to the desired operating point and take an impeller size reading.1. Select the impeller size:A. For speeds of 1750 RPM and below read to the nearest i/i inch above the operating point.B. For speeds above 1750 RPM, read to the nearest i/g inch above the operating point.2. Calculate the required horsepower:A. Read horsepower from curve at operating point on impeller (selected as accuratelyas possible) then:Brake Horsepower Required=Curve HPxSp.Gr. of FluidB. Alternate Method: Read Efficiency at the operating point.Brake Horsepower = (GPM) (Hd. Ft.) (Sp. Gc)(3960) (Efficiency)3. Calculate your systems NPSH available in feet:NPSH available = P^ - Friction loss + Elevation - Vapor Pressure P^ = Absolute pressure above liquid in feet of fluid Absolute Pressure = Gauge Pressure + Atmospheric Pressure Elevation = Distance from Surf ace of liquid on suction side to center line of pump in feet (above +: Below -). Vapor Pressure = Vapor Pressure fluidat pumping temperature in feet of fluid.4. Read NPSH required from curve.A. NPSH available must be equal to or greater than NPSH required or the pump will cavitate.B. If NPSH required, is greater than NPSH available, consider:(1) Using larger suction pipe to lower losses(2) Raising the fluid level(3) Oversizing the pump(4) Lowering pump speed and increasing impeller diameter to meet the same operating point.Start-Up and OperationBEARING LUBRICATION:All Dragon pump bearings are prelubricated when assembled. We use Mystic JT-6 HT #2 when assemblingand recommend that the same or a compatible NLGI #2 high temp be used. It is recommended that 5-10shots of grease are injected into both the inboard and outboard bearing lubrication fittings at least monthly.Pumps assembled with the optional oil lubrication should be checked regularly with the dipstick and refilledwith a good grade of non-detergent SAE 30 motor oil.STUFFING BOX PACKING:Most Dragon 250 pumps come standard with a mechanical seal and a back-up graphite packing in case ofseal failure. The back-up packing should be left loose until needed, after which the packing bland bolts shouldbe tightened slowly until the stuffing box drips 6-10 drips per minute. The packing should be greased daily.PRIMING:Vent air from suction line and pump housing to allow themto fill completely with fluid while priming. For pumps with aflooded suction, slightly open the discharge valve and fullyopen the suction valve. This will allow the pump and suc-tion line to fill completely.START-UP:Start the pump with the discharge valve about one thirdopen. After the discharge pressure stabilizes, graduallyopen the discharge valve to the required position.Dragon’s Mechanical SealOur Dragon Mechanical Seal manufactured in the USA.It has a Tungsten Carbide rotating assembly, a 316stainless steel cage assembly machined from solid stockand a Silicone Carbide stationary for greater wear life.It is completely interchangeable with most or the popularpumps on the market.PUMP PERFORMANCE COMPUTATIONS:To compute pump performance of variations frompump curves use the following formulas: (Approximate)CHANGE OF SPEED (RPM)V2= V1 (R2/R1)H2= H1 (R2/R1)2P2 = P1 (R2/R1)3CHANGE OF IMPELLER DIAMETERV2= V1 (D2/D1)H2= H1 (D2/D1)2P2 = P1 (D2/D1)3CHANGE OF SPEED AND IMPELLER DIAMETERV2= V1 (R2/R1) (D2/D1)H2= H1 (R2/R1)2 (D2/D1)2P2 = P1 (R2/R1)3 (D2/D1)3V1= Old VolumeV2= New VolumeH1= Old Head Feet H2= New Head FeetP1 = Old HorsepowerP2= New HorsepowerR1= Old Speed (RPM)R2= New Speed (RPM)D1=Old Impeller DiameterD2=New Impeller DiameterPUMP A B C D F G H K L M N P R S T W XSIZE1 x 11/2 R&L 13 17/16 23/8 41/4 35/16 261/4 31/8 47/8 71/2 7 41/4 7/8 1 11/2 (4)-11/16 6 1211/2 x 2 R&L 13 17/16 23/8 5 35/16 263/4 31/2 45/8 71/16 7 41/4 7/8 11/2 2 (4)-11/16 6 122 x 3 R&L 13 17/16 23/8 51/2 35/16 27 33/4 51/2 73/4 7 41/4 7/8 2 3 (4)-11/16 6 123 x 4 R 13 17/16 23/8 65/8 35/16 281/2 41/4 5 8 7 41/4 7/8 3 4 (4)-11/16 6 123/4Premium 118 Centrifugal PumpConcentric housing design is available in right hand or left hand operation. Itreduces turbulence within the pump to minimize cavitation, shaft deflection,and excessive wear. The semi open impeller is designed to handle water orheavy slurries with equal efficiency. Replaceable wear plates protects thepedestal from wear and corrosion caused by fluids being pump, therefore,extending the life of the pump. The beefed-up frame design is stronger andmore rigid in all wear areas.It gives a larger work area to facilitate packingthe pump, which cuts repacking time. Heavy duty bearings are well protect-ed by spring type oil seals and water slinger designed to keep fluid and dirtout of the bearing cavity. Eccentric locks are used so the shaft can be easilyremoved without special tools. The oil bath lubrication system is designedwith a larger oil reservoir, that provides free circulation of oil and better heatdissipation for longer bearing life.PEDESTAL, HOUSING & INSTALLATION DEMINSIONSFLANGE SIZESPUMPSIZEPUMPTYPE(shaftdia.)SIZE DRILLING SIZE DRILLINGDISCHARGE PIPE SUCTION PIPE1 x 11/2 11/8 1 4 Holes 5/8 Dia. 31/8 B.C. 11/8 4 Holes 5/8 Dia. 37/8 B.C.11/2 x 2 11/8 11/2 4 Holes 5/8 Dia. 37/8 B.C. 2 4 Holes 3/4 Dia.. 43/4 B.C.2 x 3 11/8 2 4 Holes 3/4 Dia. 43/4 B.C. 3 4 Holes 3/4 Dia. 6 B.C.3 x 4 11/8 2 4 Holes 3/4 Dia. 6 B.C. 4 8 Holes 3/4 Dia. 71/2 B.C.Premium 118 Centrifugal PumpPUMP SIZESPUMP SIZE MAX CAST IRON& ROTATION IMPELLER MODEL NUMBERS1X11/2 L 81/2” 091-110011/2 X2 R 81/2” 091-11052X3 R 81/2” 091-11103X4 R 81/2” 091-1115ItemNo. Description Qty Req Dragon Mission Halco Harrisburg1 118 Pedestal 1 820-0120 E3768 H3768 1-118-PED2 118 Bearing Cap 2 820-0140 3773A H3771A 2-118-BC3 118 Bearing Cap Gasket 2 811-8025 10399-21-1 H10399-2-1 3-118-BCG4 118 Bearing Assm. 2 820-0100 3944-1 H3944-1 4-118-BA5 118 Oil & Grease Seal 2 811-6020 3943-12 H3943-12 5-118-OGS7 1 18 316-SS Shaft 1 820-0160 3769-4A H3769-4A 7C-118-316SS118 416-SS Shaft 1 820-0180 3769-21A H3769-21A 7-118-416SS1 18 Ceramic Coated416-SS Shaft 1 820-0200 17361-21G-7A H17361-21G-7A 7A-118-416SSC8 118 Graphite Packing 1 811-7520 8264-11S-OBA H8264-11S-OBA 8A-118-PMSG118 King Packing 1 811-7525 8474-1 1S-1 A H8474-11S-1A 8C-118-PMSK118 Teflon Packing 1 811-7530 8264-flS-7A H8264-11S-7A 8D-118-PMST9 118 Packing Gland 1 820-0240 8204-1 3A H8204-13A 9-118-GPA10 118 Gland Adjusting Bolt Assm. 2 820-0260 A3701A H3701A 10-118-GABA11 118 Wear Plate Cast Iron 1 820-0280 3762-1 H3762-1 11-118-WPC12 118-1X1. 5 LH Cast Iron Impeller 1 811-0220 4571 -XX-1 H4571-XX-1 1218142ICRXXX118-1.5X2 RH Cast Iron Impeller 1 811-0240 4571-XX-1 H4571-XX-1 1218142ICRXXX11 8-2X3 RH Cast Iron Impeller 1 811-0260 4575-XX-1 H4575-XX-1 121823ICRXXX11 8-3X4 RH Cast Iron Impeller 1 811-0280 5710-XX-1 H5710-XX-1 N/A13 118 Housing Gasket 1 811-8020 10399-19-1 H10399-19-1 13A-118-HGF14 118-1X1.5 LH Housing Assm. C.I. 1 811-2120 N/A N/A N/A118-1.5X2 RH C.I Housing Assm. 1 811-2140 G4576-1A H4576-1A 14118142CHR118-2X3 RH C.I Housing Assm. 1 811-2160 F4672-1A H4672-1A 141823CHR1 18-3X4 RH C.I Housing Assm. 1 811-2180 F5162-1A H5162-1A N/A15 118 Housing Stud 8 400-8001 11907-82/3932-1 H1 1907-82/3932-1 15-118-HSN15a 118 Housing Stud Nut 8 405-2001 N/A N/A N/A17 118 Impeller Key 1 820-0320 4372-1-4 H4372-1-4 17-118-IK18 118 Coupling Key 1 820-0360 4372-2-21 H4372-2-21 17A-118-CK19 118 Shaft Lock Nut Assm. 1 820-0380 6209-7-4 H6209-7-4 18-118-LNA21 118 Water Slinger Ring 1 811-9020 C3770A H3770A 22-118-SRWNote: XX or XXX Indicates Impeller SizePremium 118 Centrifugal Pump118 Pump Parts List ChartPremium 118 Series ChartsPremium 118 Series ChartsPremium 118 Series ChartsPremium 118 Series ChartsPremium 118 Series ChartsPremium 118 Series ChartsPremium 118 Series ChartsPremium 178 Centrifugal PumpThe concentric housing design reduces turbulence within the pump to mini-mize cavitation, shaft deflection, and excessive wear. The semi openimpeller is designed to handle water or heavy slurries with equal efficiency.Replaceable wear plates protects the pedestal from wear and corrosioncaused by fluids being pump, therefore, extending the life of the pump. Thebeefed-up frame design is stronger and more rigid in all wear areas.It givesa larger work area to facilitate packing the pump, which cuts repacking time.Heavy duty bearings are well protected by spring type oil seals and waterslinger designed to keep fluid and dirt out of the bearing cavity. Eccentriclocks are used so the shaft can be easily removed without special tools.Premium 178 Series PartsPremium 178 Series PartsItemNo. Description Qty Req Dragon Mission Halco Harrjsburg1 178 Pedestal 1 825-0125 L3785 H3785 1-178-PED2 178 Bearing Cap 2 825-0140 3790 H3790 2-178-BC3 178 Bearing Cap Gasket 2 811-8045 10399-23-1 H10399-23-1 3-178-BCG4 1 78 Bearing Assm. 2 825-0100 3944-3 H3944-3 4A-178-BA85 178 Oil & Grease Seal 2 811-6040 3943-14 H3943-14 5-178-OGS7 178 316-SS Shaft F/ 2x3-5x6 1 825-0160 3786-4A H3786-4A 7A-178-316SS178 416-SS Shaft F/ 2x3-5x6 1 825-0180 4932-21 A H4932-21A 7A-178-416SS178 Ceramic Coated F/ 2x3-5X6 825-0200 17238-21G-7A H17238-21G-7A 7B-178-416SSC1 78 316-SS Shaft F/ 6X8 825-0220 1492.8-4A H14928-4A 7F-178A-316SS178 416-SS Shaft F/ 6X8 825-0240 14928-21A HI 4928-21 A 7C-178A-416SS178 Ceramic Coated F/ 6X8 825-0260 17343-210-1 A H17343-21-1A 7D-178A-416SSC8 178 Graphite Packing 811-7560 8264-17W-OBA H8264-17W-OBA 8A-178-PMSG178 King Packing 811-7565 8474-1 7 W-7A H8474-17W-7A 8C-178-PMSK178 Teflon Packing 811-7570 8264-17W-7A H8264-17W-7A 8D-178-PMST9 178 Packing Gland 1 825-0280 7406-13A H7406-13A 9-178-GPA10 178 Gland Adjusting Bolt Assm. 2 830-0200 A3701A H3701A 10-178-GABA11 178 Wear Plate Ductile Iron 1 825-0320 3779-30 H3779-30 11B-178-WPD12 178-2X3 Ductile RH Impeller 1 811-0520 4610-XX-30 H4610-XX-30 1 27823 IRXXX178-3X4 Ductile RH Impeller 811-0540 4605-XX-30 H4605-XX-30 127834IRXXX178-4X5 Ductile RH Impeller 811-0560 4705-XX-30 H4705-XX-30 127845IRXXX178-5X6 Ductile RH Impeller 811-0580 4710-XX-30 H4710-XX-30 127856IRXXX178-6X8 Ductile RH Impeller 811-0620 5142-XX-30 H5142-XX-30 127868IRXXX13 178 Housing Gasket 2 811-8040 10399-20-1 HI 0399-20-1 13A-178-HGF14/15 178-2X3 Housing Assm. RH Duct 811-2320 G4676-30A H4676-30A 147823DHA178-3X4 Housing Assm. RH Duct 811-2340 F4644-30A H4644-30A 147834DHA178-4X5 Housing Assm. RH Duct 811-2360 F4732-30A H4732-30A 147845DHA178-5X6 Housing Assm. RH Duct 811-2380 F4742-30A H4742-30A 147856DHA178-6X8 Housing Assm. RH Duct 811-2400 F5144-30A H5144-30A 147868DHA22 178 Water Slinger Ring 811-9040 C3787A HC3787A 20-178-SRWNote: XX or XXX Indicates Impeller Size• The concentric housing is 35% thicker for extra strength and extended service life and reduces the radial load of the bearings.• The impeller is designed to reduce turbulence, eliminate recirculation, lower radial and thrust load, and provide a smooth flow of fluids.• The larger diameter shaft gives heavy-duty performance with minimum shaft deflection.• An anti-loosening impeller lock bolt to eliminate pump damage in case of reversed polarity motor hook-up.• Brass labyrinth seals are used on both the inboard and outboard bearings to protect from contamination and for longer seal life.• Heavy-duty SKF outboard bearing assembly consists of a pair of angular contact bearings with high thrust load rating and zero end play.• The heavy-duty SKF inboard bearing is a double row ball-bearing with high radial load rating to compensate for the larger size impeller and heavy-duty applications.• The optional oil bath lubrication system is designed with a larger oil reservoir, which providesfree circulation of oil and better heat dissipation for longer bearing life.• The mechanical seal has a tungsten carbide rotating assembly plus a 316 stainless steel cage assembly with a silicone carbide stationary for greater seal life.• All components of the Dragon Premium 250 centrifugal pump are 100% interchangeable with other brands such as Mission, Halco, etc.• Every Dragon pump or pump package is fully tested before shipment.The Dragon Premium 250 Centrifugal Pumpuses the latest design with many enhancements:PEDESTAL, HOUSING & INSTALLATION DEMINSIONSSIZE 2x3x13 3x4x13 4x5x14 5x6x11 5x6x14 6x8x11 6x8x14DIMENSIONA 83/4 93/8 103/4 121/16 121/16 131/4 131/4B 33/4 41/4 5 53/4 53/4 63/4 63/4C 33 335/8 35 363/8 363/8 371/2 371/2D 7 63/4 61/8 6 6 83/8 83/8E 101/4 101/4 11 11 11 14 14F 177/8 177/8 19 177/8 21 20 23G 31/2 31/2 31/2 31/2 31/2 31/2 31/2H 157/16 157/16 157/16 157/16 157/16 157/16 157/16J 25/16 25/16 25/16 25/16 25/16 25/16 25/16K 195/8 195/8 195/8 195/8 195/8 195/8 195/8M 9 9 9 9 9 9 9N 9 9 9 9 9 9 9Max Impellar Dia. 13 13 14 11 14 11 14Max Impellar Dia. 6 6 7 8 10 8 10Suction Size 3 4 5 6 6 8 8Discharge Size 2 3 4 5 5 6 6Weight- Lbs. 430 440 490 520 550 610 630FLANGE I.D. O.D. B.C. HOLES SIZE HOLES THICKNESSSIZE2 2 6 43/4 4 3/4 5/83 3 71/2 6 4 3/4 3/44 4 9 71/2 8 3/4 15/165 5 10 81/2 8 7/8 15/166 6 11 91/2 8 7/8 18 8 71/2 113/4 8 7/8 11/8Premium 250 Centrifugal PumpPremium 250 Centrifugal PumpPUMP SIZESPUMP SIZE MODEL NUMBERS MATERIAL ROTATION MAX IMPELLER2X3X13 091-1180 DUCTILE IRON RH 13”3X4X13 091-1185 DUCTILE IRON RH 13”4X5X14 091-1190 DUCTILE IRON RH 14”5X6X11 091-1195 DUCTILE IRON RH 11”5X6X14 091-1200 DUCTILE IRON RH 14”6X8X11 091-1205 DUCTILE IRON RH 11”6X8X14 091-1210 DUCTILE IRON RH 14”Item Description Quanity Dragon # Mission NOV1 250 Pedestal 1 830-0120 20618-12-1 6443024992 250 Shaft 1 830-0140 20612-02-33 6464905573 250 Outboard Bearing Housing 1 830-0160 20624-01-01 6443085044 250 Packing Gland 1 830-0180 20622A 6411033385 250 Inboard Bearing (Double Row) 1 830-0100 20615-1 6484081027 250 Inboard Bearing Cover 1 830-0220 20626A 6411033618 250 Outboard Bearing 2 830-0110 20616-1 648408201S9 250 Outboard Bearing Cover 1 830-0240 20617A 64110329610 250 Mechanical Seal {Tungsten-Silicone} 1 811-6090 22451 648414357250 Graphite Packing 1 811-7600 66100700511 250 Packing Gland Bolt Assy 2 830-0200 3701A 60110249412 250 Shaft Sleeve Stainless Steel 1 830-0260 20943-21A 641102182250 Shaft Sleeve Ceramic Coated 1 830-0280 20613-21G-7A 64110218113 250 Mechanical Seal Stuffing Box 1 830-0320 22223-01-30A 641116157250 Packing Stuffing Box 1 830-0300 20614-01-30 64336504214 2503X2X13 Impeller 1 811-0720 19204-XX-302504X3X13 Impeller 1 811-0760 19206-XX-302505X4X14 Impeller 1 811-0800 19224-XX-30250 6 X 5 X 11 and 8 X 6 X 11 Impeller 1 811-0820 19121-XX-302506X5X14 Impeller 1 811-0840 19121-XX-302508X6X14 Impeller 1 811-0880 19116-XX-3015 2503X2X13 Housing Assy 1 811-2520 19203-01-30A 6411017532504X3X13 Housing Assy 1 811-2540 19205-01-30A 6411019022505X4X14 Housing Assy 1 811-2560 19222-01-30A 6411020582506X5X11 Housing Assy 1 811-2580 19122-01-30A 641101456250 6X5X14 Housing Assy 1 811-2600 19123-01-30A 641101605250 8X6X11 Housing Assy 1 811-2620 19763-01-30A 641102157250 8X6X14 Housing Assy 1 811-2640 19117-01-30A 64110130816a 250 Housing Nut 12 405-4001 3932-61 64840201416b 250 Housing Stud 12 400-8021 3862-76 64840111517 250 Housing Gasket 1 811-8060 10399-46-1 64840301218 250 Impeller 0-Ring 1 811-7020 19110-72 64840508219 250 Shaft Sleeve 0-Ring 1 811-7025 23444-01-72 64841515620 250 Inboard Brass Labyrinth Seal (Standard) 1 811-6075250 Inboard Bearing Shaft Oil Sea 1 811-6065 20619-01 64840830021 250 Inboard Exclusion Seal 1 811-6070 20620-01 64840840922 250 Outboard Brass Labyrinth Seal (Standard) 1 811-6080250 Outboard Bearing Shaft Oil Seal 1 811-6060 20619-02 64840835923 250 Outboard Bearing Cover Gasket 1 811-8065 20625 64840870624 250 Outboard Bearing Housing 0-Ring 1 811-7030 7496-253 64840229525 250 Outboard Bearing Cover 0-Ring 1 811-7035 7496-26 7220001726 250 Bearing Lock Nut 1 830-0380 6123-4A 64840205527 250 Bearing Lock Washer 1 830-0400 6124-4A 64840210528 250 Impeller Lock Bolt 1 830-0402 741564830 Grease Zert31 Stuffing Box Bolt 1 400-2003 3861-117 64840101632 250 Pedestal Breather/Vent 1 830-0405 8267-01 60147368933 250 4 X 3 X 13 Housing Wear Pad 1 811-2545250 5 X 4 X 14 Housing Wear Pad 1 811-2565250 6 X 5 X 11 Housing Wear Pad 1 811-2585250 6 X 5 X 14 Housing Wear Pad 1 811-2605250 8 X 6 X 11 Housing Wear Pad 1 811-2625250 8 X 6 X 14 Housing Wear Pad 1 811-264534 250 Shaft Key (3/8) 1 4372-5-21 601212392250 Pump Parts List ChartPremium 250 Series ChartsPremium 250 Series ChartsPremium 250 Series ChartsPremium 250 Series ChartsPremium 250 Series ChartsPremium 250 Series ChartsPremium 250 Series ChartsPremium 250 Series ChartsPremium 250 Series ChartsPremium 250 Series ChartsPremium 250 Series Charts• Series 250 6 x 5 x 11 Electric Unit• 10 1/2” Impellar• Casing Wear Pad• Mechanical Seal Tungsten Carbide• SKF Premium Bearings • Labyrith Bearing Oil Seals• 50HP @ 1750 RPM Motor• 230/460-3-60 Explosion Proof • Motor Starter 50HP Sprecher SCHUH 3 Phase Motor Control• Woods CouplingsPump Skid PackagesElectric motor pump packages with electric motors from 1-200hp in directcouple or belt-drive configurations.Dragon 3X2 Oil Lubed Pump with a Kubota DG972-E2 Natural Gas EngineMurphy Cascade Control Panel and a Heavy Duty Galvanized Skid.Diesel Engine pump packages with Deutz, John Deere, and Detroitengines from 50-250hp.• Series 250 8 x 6 x 14 • 11” Impeller• Replaceable Casing Wear Pad• Mechanical Seal Tungsten Carbide• SKF Premium Bearings • Labyrinth Bearing Seals• 173HP Deutz Diesel EngineModel TCD914L6• Twin Disc PTO• Deutz InstrumentationPanel• Dodge CouplingsPump Skid And Trailer PackagesDiesel Unit shown withoptional ManifoldVacuum Prime Assist Pumps withDiesel Engines from 75-300hp.• 6X6 Vacuum prime assist pump• 75 HP Deutz engine• Heavy Duty skid/trailer withremovable axle and tongue.• Removable lifting cage• Hot-dipped GalvanizedStarters And Electric MotorsMotors- Dragon carries a full inventory of TEFC andExplosion-Proof motors from1-200hp and 1200, 1800,and 3600rpm. Motors are US made by Baldor andReliance.Starters- Dragon carries a full inventory ofTEFC and Explosion-Proof starters from 200HPby Sprecher&Schuh and Siemens.Mud Hoppers- Rigid steel construction, the hoppesr aredesigned to provide optimum mixing results. They are low profilefor easy “sack to hopper” transfer and available in 4” and 6” ori-fice. Equipped with jet nipple, bushing, tee and a valve that hasintermediate settings to regulate the feeding rate.Venturi tubing is included with every unit.Mud Guns- The Dragon Mud Gun is designed for submergedservice in pits and is available in a 3” size low-pressure gun. Thisunit is intended for high volume service, such as mud mixing sys-tems that employ centrifugal pumps. All Dragon Mud Guns areavailable with 360°rotation handles, which aid the swivel joints.For reducing the amount of solid buildup in tank corners, DragonMud Guns are highly effective. They also produce flow currents,which boost fluid movements and aid in the suspension or mixingof particles. In addition, Mud Guns can create an alternate productflow when used in conjunction with agitators. Available in one andtwo gun configurations.AgitatorsDragon Agitators are constructed tohandle the harsh oilfield environment.Keyless-No Key Ways orKey Stock needed.All agitators come with:• Nord brand nominal 30:1gear box, constructed withultra-tough cast-iron.• Tapered roller bearings onthe output shaft to handle thehighest thrust loads.• Nema C face input for theelectric motor.Our agitators features the new dacromet coated corrosionresistant keyless coupling for easy installation and impelleradjustment. The units come complete with base plate, motor,gearbox, impeller, shaft and couplings. Available in all sizes.• Stackable for easy storage and transport• Four heavy duty “D” lifting rings• Angled approach ramps• Constructed from 1/4” steel wall material• 3” x 6” rectangular crosstubing• 150# Flange inlet/outlet• Hot dipped galvanized to prevent corrosion and rust for longer production lifeFour Sizes to choose from:8” Flange x 12 feet8” Flange x 24 feet12” Flange x 12 feet12” Flange x 24 feetRoad Crossing ManifoldsDragon Custom PumpsLet one of our Pump Specialist help you todesign and build a custom system to suityour production needs. Combined with ourDesign Engineers, you will get a qualitybuilt product backed by experience, partsand a on-site service team. All systems aremanufactured in the USA.Our Pump packages are custom fabricationto meet our customers specific needs in thePetrochemical, Shipping, Drilling, Agriculturaland Minning industries. All Dragon pumpsand packages are assembled and tested atour manufacturing plant in Liberty, Texas. Allinternal pump parts such as bearings, shafts,and mechanical seals are from the highestquality parts andmaterials made in the USA.We also refurbish and repair pumps andhave a full stock of replacement parts for ourpumps which are 100% interchangeable withother popular pumps on the market.About Dragon PumpsInside Back Cover