6 NS 80 NS 110 NS 160 NS 200 NS 240 NS 320

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1 NS 6 & 8 SERIES STAINLESS STEEL SUBMERSIBLE PUMPS FOR DEEP WELLS 6 NS 8 NS 11 NS 16 NS 2 NS 24 NS 32 8 NS 4 NS 5 SPECIFICATIONS : Up to 65 GPM Heads: Up to 162 Feet 36 RPM - 6 HZ Can Pump Continuously Vertically & Horizontally performance quality service trust 1

2 National Keeps You Pumping Around The World At National Pump, pump technology is our business. From principals and engineers to sales and service personnel, our key sta members have more than three centuries of combined industry experience. We want to help you achieve your goals and objectives, and we re big enough to meet your needs, yet small enough to provide the one-to-one service you deserve. At every stage of our work, from research and development to design, production and testing, we use up-to-the-minute technologies and the most modern equipment available to ensure that every National Pump meets the highest possible standards of eiciency and reliability. Using conventional or special materials, we manufacture pumps for specific needs and conditions. From gold mines to golf courses to grain fields, our pumps are hard at work around the world. Serving commercial, industrial, municipal, power, residential, mining, oil and gas and agricultural irrigation needs, each National Pump produced is an individual pumping system designed to do a specific pumping job. Precisely matched drivers, discharge heads, impellers, bowls and column /shaft assemblies deliver consistent pumping capacity. W e oer a full range of vertical turbine and submersible pumps, water or oil lubricated, of threaded or flanged construction, with capacities to 2, GPM and pressures up to 2, PSI. All pump models are in stock as standard materials, and they can be customized at the service center level. We also manufacture custom pumps, using special alloys and coatings to suit your specific needs. We have multiple patterns in order to meet special alloy requirements in a timely manner. Even more important is the service we provide. We will be happy to provide pre-design information to help you develop the most eicient pumping system for your customer s needs. Whatever your application, we know that having equipment down causes unacceptable delays so each of our oices is a complete service / warehouse / assembly / finishing center. Our branches are strategically located throughout the United States and staed by experienced managers who are all technical experts, ready to help solve your problems on the phone or on site. No matter what brand of pump you have, when you need service, you get it now - not a two month delay while parts are ordered, or a several-day wait for a visit from service personnel. Before you design your next pumping system, talk with a National Pump expert and take advantage of the knowledge and experience we have to oer. We re convinced you won t find better quality or service anywhere! 2 Creating Quality Pump Systems and Satisfied Customers Visit us on the web at:

3 NS SERIES Stainless Steel Submersible Pumps for 6 diameter and larger wells. APPLICATIONS These heavy-duty 6 & 8 submersible pumps are for: Municipal water works Water distribution and pressure boosting Irrigation and sprinkler systems Water treatment plants, filtration and reverse osmosis Industrial cooling and processing Mining industry, drainage and de-watering Fire-fighting equipment General industry Fountains FEATURES Fabricated stainless steel impellers and diusers for corrosion resistance Heavy duty stainless steel structures to assure permanent alignment of all the components in order to increase run time and trouble-free operation Teflon floating neck ring, ceramic guide journal and Nitrile rubber fluted bearing ensure durability against wear for long-lasing constant performances and product reliability Hexagonal shaft to ensure positive drive of the impeller stack Compact, reliable and suited to operate in horizontal position Built-in check valve to protect the pump against water hammer risk The hydraulic design is such to enhance the overall eiciency thus reducing energy consumption and making the pumping systems more cost eective SPECIFICATIONS Capacities up to 65 GPM 162 feet Maximum allowable amount of sand 5 gr/m3 (of the same hardness and granulometry of silt) Water temperature range: from C to 6 C (32 F to 14 F) Rotation: counter clockwise when looking into the discharge Motor adapter in compliance with NEMA standard Pump can work continuously in a vertical or horizontal position AVAILABLE OPTIONS 316 Stainless steel (N) version (DIN/EN 1.441) for 6 only 8 Submersible is all 316 stainless steel Double cable guard PUMP IDENTIFICATION CODE NS 8 / 1 5 N Number of stages Nominal flow rate in GPM Pump model 3

4 Radial Flow Stage PARTS DESCRIPTION MATERIAL Standard Version N Version TYPE AISI DIN/EN AISI DIN/EN Outer case with motor adapter Stainless Steel Discharge case with built-in check valve Stainless Steel Sealing O-ring Nitrile Rubber (NBR) Upper bowl Stainless Steel Upper bearing bush Nitrile Rubber (NBR) Upper journal sleeve Stainless Steel w/ ceramic coating Pump shaft Stainless Steel / /1.446 Coupling to motor Stainless Steel 431/ / / /1.446 Diuser Stainless Steel Floating neck ring Secondary bearing bush Teflon (PTFE) Nitrile Rubber (NBR) Secondary journal sleeve/upper jar Stainless Steel Impeller/wear ring Stainless Steel Cable guard Stainless Steel Suction strainer Stainless Steel Insert locking outer case Stainless Steel Up-thrust washer (1 upper, 1 lower) Stainless Steel Up-thrust disc/up-thrust ring Teflon (PTFE) Mixed Flow Stage Screws and washers Stainless Steel It is our policy to continuously develop and improve our products, therefore, National Pump reserves the right to amend specifications without prior notice.

5 feet m³/h m NS RPM 6HZ Total Head U.S.gpm HP/stg m³/h HP.8kW U.S.gpm Eiciency (%) m³/h U.S.gpm The coupling to motor and all the mounting dimensions are in accordance with NEMA standard. NS8/ NPT 23 NS8/ NPT 29 NS8/ NPT 33 NS8/ NPT 37 NS8/ NPT 45 NS8/ NPT 52 NS8/ NPT 64 The hydraulic characteristics are guaranteed, according to H.I. standard ASI/HI , tolerance 2B. 5

6 feet m³/h m NS RPM 6HZ U.S.gpm HP/stg Total Head m³/h kw HP U.S.gpm m³/h Eiciency (%) U.S.gpm The coupling to motor and all the mounting dimensions are in accordance with NEMA standard. NS11/ NPT 2 NS11/ NPT 24 NS11/ NPT 28 NS11/ NPT 36 NS11/ NPT 42 NS11/ NPT 48 NS11/ NPT 56 NS11/ NPT 72 6 The hydraulic characteristics are guaranteed, according to H.I. standard ASI/HI , tolerance 2B.

7 feet m³/h m NS RPM 6HZ Total Head U.S.gpm HP 2.5 m³/h kw Hp/stg U.S.gpm Eiciency (%) m³/h The coupling to motor and all the mounting dimensions are in accordance with NEMA standard. 4 U.S.gpm NS16/ " NPT 23 NS16/ " NPT 26 NS16/ " NPT 32 NS16/ " NPT 37 NS16/ " NPT 41 NS16/ " NPT 48 NS16/ " NPT 58 NS16/ " NPT 67 The hydraulic characteristics are guaranteed, according to H.I. standard ASI/HI , tolerance 2B. 7

8 Pump Section and List of Main Components NS 8 NS 11 NS REF. N. DESCRIPTION 1. Discharge head and screw 1.1 Valve 1.2 O-ring 1.3 Screws and outer case locking nuts 1.4 Valve support 1.5 Snap ring 2. Outer case 2.1 Suction strainer 2.2 Cable guard and screws 2.3 Initial spacer 2.4 Flange and bolts 2.5 Motor adapter 3. Pump shaft 3.1 Coupling 3.2 Upper up-thrust washer 3.3 Lower up-thrust washer 3.4 Upper journal sleeve 3.5 Screw and washer 3.6 Up-thrust ring 3.7 Lower spacer 3.8 Upper spacer 4. Diusers 4.1 Secondary bearing 4.2 Floating neck ring 4.4 Bearing 4.5 Upper bearing guide 4.6 First diuser 4.7 Diuser with upper up-thrust washer 4.8 Last diuser 5. Impeller 5.1 Impeller spacer 5.5 Wear ring It is our policy to continuously develop and improve our products, therefore, National Pump reserves the right to amend specifications without prior notice. 8

9 m³/h feet 56 m U.S.gpm HP/stg Total Head m³/h kw HP U.S.gpm Eiciency (%) m³/h NS RPM 6HZ The coupling to motor and all the mounting dimensions are in accordance with NEMA standard. 4 U.S.gpm NS2/ " NPT 32 NS2/ " NPT 37 NS2/ " NPT 47 NS2/ " NPT 56 NS2/ " NPT 65 NS2/ " NPT 74 NS2/ " NPT 93 NS2/ " NPT 111 NS2/ " NPT 129 The hydraulic characteristics are guaranteed, according to H.I. standard ASI/HI , tolerance 2B. 9

10 NS RPM 6HZ NS 24/ " NPT 24 NS24/ " NPT 3 NS24/ " NPT 48 NS24/ " NPT 58 NS24/ " NPT 64 NS24/ " NPT 77 NS24/ " NPT 99 NS24/ " NPT 116 NS24/ " NPT 144 The coupling to motor and all the mounting dimensions are in accordance with NEMA standard. m³/h kw HP 3.3 HP/stg U.S.gpm m³/h Eiciency (%) U.S.gpm

11 NS RPM 6HZ feet m³/h Total Head U.S.gpm The hydraulic characteristics are guaranteed, according to H.I. standard ASI/HI , tolerance 2B. 11

12 NS RPM 6HZ NS32/ " NPT 26 NS32/ " NPT 3 NS32/ " NPT 35 NS32/ " NPT 45 NS32/ " NPT 51 NS32/ " NPT 55 NS32/ " NPT 7 NS32/ " NPT 86 NS32/ " NPT 122 The coupling to motor and all the mounting dimensions are in accordance with NEMA standard. HP/stg m³/h kw HP U.S.gpm m³/h Eiciency (%) U.S.gpm

13 NS RPM 6HZ feet m³/h Total Head U.S.gpm The hydraulic characteristics are guaranteed, according to H.I. standard ASI/HI , tolerance 2B. 13

14 Pump Section and List of Main Components NS 2 NS 24 NS 32 MIXED FLOW PUMP REF. N. DESCRIPTION 1. Discharge head and screw 1.1 Valve 1.2 O-ring 1.3 Screws and outer case locking nuts 1.4 Valve support 1.5 Snap ring 2. Outer case 2.1 Suction strainer 2.2 Cable guard and screws 2.3 Initial spacer 2.4 Flange and bolts 2.5 Motor adapter 3. Pump shaft 3.1 Coupling 3.3 Lower up-thrust washer 3.4 Upper journal sleeve 3.5 Screw and washer 3.6 Up-thrust ring 3.7 Lower spacer 3.8 Upper spacer 4. Diusers 4.1 Secondary bearing 4.2 Floating neck ring 4.3 Flange clamping ring 4.4 Bearing 4.5 Last/intermiediate diuser 5. Impeller 5.1 Split cone 5.2 Split cone nut 5.3 Intermediate split cone nut 5.4 Up-thrust split cone nut 5.5 Wear ring 5.6 Intermediate impeller with screw It is our policy to continuously develop and improve our products, therefore, National Pump reserves the right to amend specifications without prior notice.

15 8 SUBMERSIBLE PUMP Pump Section and List of Main Components NS 4 NS 5 MIXED FLOW PUMP (1) REF. N. DESCRIPTION (1) 1. Discharge head 1.1 Valve 1.2 Sealing O-ring 1.3 Outer case locking nuts 1.4 Valve support 1.5 Snap ring 1.6 Spring 2. Outer case 2.1 Suction strainer 2.2 Cable guard 2.3 Initial spacer 2.4 Flange 2.5 Motor adapter 3. Pump shaft 3.1 Coupling 3.2 Upper up-thrust washer 3.3 Lower up-thrust washer 3.4 Upper journal sleeve 3.5 Screw and washer 3.6 Up-thrust ring 4. Diuser 4.1 Secondary bearing 4.2 Floating neck ring 4.3 Flange clamping neck ring 5. Impeller 5.1 Split cone 5.2 Split cone nut 1) only for types with more than 8 stages It is our policy to continuously develop and improve our products, therefore, National Pump reserves the right to amend specifications without prior notice. 15

16 8 SUBMERSIBLE PUMP NS RPM 6HZ Dimensions The coupling to motor and all the mounting dimensions are in accordance with NEMA standard. NS4/ " NPT 7 NS4/ " NPT 81 NS4/ " NPT 92 NS4/ " NPT 13 NS4/ " NPT 114 NS4/ " NPT 125 NS4/ " NPT 136 NS4/ " NPT 147 NS4/ " NPT 158 NS4/ " NPT 18 NS4/ " NPT 191 NS4/ " NPT 213 NS4/ " NPT 225 m³/h Eiciency (%) U.S.gpm NPSH m³/h m feet U.S.gpm

17 8 SUBMERSIBLE PUMP NS RPM 6HZ feet m³/h m HP/stg Total Head U.S.gpm HP m³/h kw 35 rpm 8" motor 346 rpm 6" motor U.S.gpm The hydraulic characteristics are guaranteed, according to H.I. standard ASI/HI , tolerance 2B. 17

18 8 SUBMERSIBLE PUMP NS RPM 6HZ Dimensions The coupling to motor and all the mounting dimensions are in accordance with NEMA standard. NS5/ " NPT 7 NS5/ " NPT 81 NS5/ " NPT 92 NS5/ " NPT 13 NS5/ " NPT 114 NS5/ " NPT 125 NS5/ " NPT 147 NS5/ " NPT 158 NS5/ " NPT 18 NS5/ " NPT 191 NS5/ " NPT 213 m³/h Eiciency (%) U.S.gpm NPSH 18 m³/h m feet U.S.gpm

19 8 SUBMERSIBLE PUMP NS RPM 6HZ feet m³/h m HP/stg Total Head U.S.gpm HP m³/h kw rpm 8" motor 346 rpm 6" motor U.S.gpm The hydraulic characteristics are guaranteed, according to H.I. standard ASI/HI , tolerance 2B. 19

20 Creating Quality Pump Systems and Satisfied Customers Visit us on the web at: ARIZONA (Main Oice) 776 N. 71st Ave. Glendale, AZ (623) Fax (623) (8) CALIFORNIA 279 S. Railroad Ave. Fresno, CA (559) Fax (559) (8) FLORIDA 195 E. 3rd Street Zolfo Springs, FL 3389 (863) Fax (863) (8) GEORGIA 92 East Union St. Vienna, GA 3192 (229) Fax (229) (8) MISSISSIPPI Green Valley Dr. Olive Branch, MS (662) Fax (662) (866) TEXAS 317 Slaton Highway Lubbock, TX 7944 (86) Fax (86) (8) Proud member of American Petroleum Institute and these organizations: 2 NS6&8 11/12