Related Manuals for Goulds NPO
Summary of Contents for Goulds NPO
- Page 1 TRAINING MANUAL NPOTM OPEN IMPELLER ALL STAINLESS STEEL END SUCTION PUMPS PRODUCT TRAINING MANUAL...
- Page 2 Goulds Water Technology Commercial Water NPO PRODUCT INTRODUCTION WASHER SERVICE WASHER SERVICE APPLICATIONS APPLICATIONS PAGE 2...
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Page 3: Table Of Contents
— Typical Dishwasher Design .............................17 Commercial Laundry ................................18 Parts Washers ..................................19 Machine Tool Coolant ................................20 Competition — Advantages of the NPO Over Flowserve (IDP) ....................21 — Commercial Laundry ...............................21 — Parts Washer and Machine Tool ..........................21 Installation Procedures ................................22 Service and Maintenance Procedures ..........................24 Troubleshooting ..................................26... -
Page 4: Introduction
In this manual, you will find detailed information on product specifications and capabilities, where to sell it, how to install it and how to repair it. This is meant to supplement the introduction meeting held by your Goulds Water Technology factory representative, and to be a permanent reference source. In this way, it can be used as an in- depth backup to your Goulds Water Technology catalog materials. - Page 5 Commercial Water INTRODUCTION What is the Performance Coverage? The NPO performance range is from 10 to 80 GPM at 250 to 110 feet of head. This fits the requirements of most small spray washer systems such as commercial dishwashers. METERS FEET ⁄...
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Page 6: Product Overview
Goulds Water Technology Commercial Water PRODUCT OVERVIEW The NPO pump from Goulds Water Technology is an open impeller, single stage, end suction centrifugal made of 316 stainless steel for a variety of commercial washing applications It consists of three pump sizes using ⁄... -
Page 7: Major Components
SEAL HOUSING: The NPO seal housing is the same as that used for the NPE. It is made of 316L stainless and fea- tures a series of formed barriers designed to keep the liquid circulating and reduce the chance of heat build up in the seal area. -
Page 8: Npo Product Line Numbering System
NPO PRODUCT LINE NUMBERING SYSTEM The various versions of the NPO are identified by a product code number on the pump label. This number is also the catalog number for the pump. The meaning of each digit in the product code number is shown below. -
Page 9: Common Npo Catalog Models
Goulds Water Technology Commercial Water COMMON NPO CATALOG MODELS Single Phase Three Phase Head (Feet) ODP* TEFC TEFC ½ 1SN1C1D4 1SN1C4D4 1SN1C2D4 1SN1C5D4 1SN1C7D4 ½ 1SN1C1C4 1SN1C4C4 1SN1C2C4 1SN1C5C4 1SN1C7C4 ½ 1SN1C1B4 1SN1C4B4 1SN1C2B4 1SN1C5B4 1SN1C7B4 ¾ 1SN1D1A4 1SN1D4A4 1SN1D2A4... -
Page 10: Components And Materials Of Construction
Goulds Water Technology Commercial Water COMPONENTS AND MATERIALS OF CONSTRUCTION GENERAL DESCRIPTION: 316 stainless steel end-suction centrifugal pump with semi-open impeller. Performance from 10-250 GPM with 20-110 feet TDH. Maximum working pressure is 125 PSIG (9 bars). Standard liquid tempera- tures to 212º... -
Page 11: Performance
The NPO performance is very dependant on the clearance between the impeller and casing face plate. The curves show the worst case performance with NPO motors. Individual pumps may produce up to 5 feet of additional TDH. Use of other motors may result in lower performance. Contact Goulds Water Technology customer service for help in selecting a pump for a specific OEM application. - Page 12 Goulds Water Technology Commercial Water PERFORMANCE Model NPO / 2SN Size (Tamaño) 1 ⁄ ⁄ NOTE: Not recommended for operation beyond printed H-Q curve. RPM 3500 Curve (Curva) CN0470R00 METERS FEET NOTA: No se recomienda para funcionamiento METROS PIES superior al impreso en la curva H-Q.
- Page 13 Goulds Water Technology Commercial Water PERFORMANCE NOTE: Not recommended for operation Model NPO / 1SN Size (Tamaño) 1 x 1 ⁄ beyond printed H-Q curve. RPM 2900 Curve (Curva) CN0469R00 NOTA: No se recomienda para funcionamiento METERS FEET superior al impreso en la curva H-Q.
- Page 14 Goulds Water Technology Commercial Water PERFORMANCE Model NPO / 3SN Size (Tamaño) 1 ⁄ x 2-6 NOTE: Not recommended for operation beyond printed H-Q curve. METERS FEET RPM 2900 Curve (Curva) CN0475R00 NOTA: No se recomienda para funcionamiento METROS PIES superior al impreso en la curva H-Q.
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Page 15: Dishwasher Market - Primary Applications
Technology Applications Engineering can help you in working with OEM prospects. Evaluation of the entire OEM system should be done before recommending a specific model. The following S.I.C. numbers can be used to help you locate NPO prospects. Use these with either your Goulds Water Technology database or local industrial directory. -
Page 16: Chemical Companies
Commercial Water DISHWASHER MARKET The Dishwasher Market for the NPO is composed of those companies which manufacture commercial dishwash- ers for use in restaurants, bars and cafeterias in various types of institutions. This is not the same as the residential dishwasher market, which uses considerably smaller pumps. -
Page 17: Typical Dishwasher Design
Some manufacturers have put in plated or stainless impellers to try to improve pump life, but until now, the cost of a completely stainless pump was much too high to justify in this application. The NPO is the first completely stainless pump to meet the performance and solids handling need and still be within the general cost range of cast iron bronze fitted pumps. -
Page 18: Commercial Laundry
Pot and pan washers and glass washers also fall into this market area. Pot washers may demand a higher pressure than the NPO can provide, but they are good prospects for an SSH. Glass washers are becoming more popular as an appliance for bars due to the increase in sanitary regulations. -
Page 19: Parts Washers
Although the durability of stainless steel is an advantage in the detergent environment of a parts washer, the stan- dard pump is typically cast iron due to traditional stainless costs. The NPO in stainless steel increases pump life, matches the materials commonly used for the rest of the unit and eliminates the chance of rust contaminants in the system. -
Page 20: Machine Tool Coolant
This recirculation often brings excess chips or filing into the pump. The 316 cast open impeller of the NPO can easily handle these particles with very little chance of damage or wear. -
Page 21: Competition
Parts Washer and Machine Tool These two segments are currently served by our NPE, SSH and SSV products. The primary benefit of the NPO will be in applications where the liquid is not well filtered and the pump must handle particles and small solids. Since most of the competitive products are not open impeller designs, they are less forgiving in these situations. -
Page 22: Installation Procedures
Goulds Water Technology Commercial Water INSTALLATION PROCEDURES 1.0 IMPORTANT 1.1 Inspect unit for damage. Report any damage to carrier/dealer immediately. 1.2 Electrical supply must be a separate branch circuit with fuses or circuit breakers, wire sizes, etc., per National and Local electrical codes. Install an all-leg disconnect switch near pump. - Page 23 Goulds Water Technology Commercial Water INSTALLATION PROCEDURES 2.1.7 Foundation must be flat and substantial to eliminate strain when tightening bolts. Use rubber mounts to minimize noise and vibration. 2.1.8 Tighten motor hold down bolts before connecting piping to plumbing. 3.0 SUCTION PIPING 3.1 Low static suction lift and short, direct suction piping is desired.
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Page 24: Service And Maintenance Procedures
6.2 Make complete check after unit is run under operating conditions and temperature has stabilized. Check for expansion of piping. 7.0 MAINTENANCE 7.1 On the close-coupled NPO unit, bearings are located in and are a part of the motor. They are permanently lubricated and no greasing is required. 8.0 DISASSEMBLY Complete disassembly of the unit will be described. - Page 25 Goulds Water Technology Commercial Water INSTALLATION PROCEDURES 8.4 Disassembly of liquid end 8.4.1 Remove casing bolts. 8.4.2 Remove back pullout assembly from casing. 8.4.3 Remove cap at opposite end of motor. A screwdriver slot or a pair of flats will be exposed. Use screwdriver or vise grips to stop shaft rotation.
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Page 26: Troubleshooting
Goulds Water Technology Commercial Water TROUBLESHOOTING PROBLEM SEE CAUSES Motor Not Running 1 — 6 Little or No Liquid Delivered 7 — 17 Power Consumption Too High 4, 17, 18, 19, 22 Excessive Noise / Vibration 4, 6, 9, 13, 15, 16, 18, 20 — 22 CAUSES 1. - Page 27 Goulds Water Technology Commercial Water PAGE 27...
- Page 28 Xylem, Inc. 2881 East Bayard Street Ext., Suite A Seneca Falls, NY 13148 Phone: (800) 453-6777 Fax: (888) 322-5877 www.xyleminc.com/brands/gouldswatertechnology Goulds is a registered trademark of Goulds Pumps, Inc. and is used under license. © 2012 Xylem Inc. NPOTM January 2004...
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