AWWA E110 2022

$76.92

AWWA E110-22 Solids Handling Pumps for Wastewater Applications

Published By	Publication Date	Number of Pages
AWWA	2022

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Category: AWWA

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Description

This standard provides minimum requirements for solids handling pumps for installation in wastewater treatment plants and wastewater collection systems. Pumps described in this standard are intended for pumping wastewater having a pH range between 5.5 and 10.0, a temperature range from 33°F to 125°F (1°C to 52°C), and a maximum chloride content of 250 PPM (250 mg/L). The solid content of the wastewater fluid is less than 2% by volume. Driver power range is 2–1,500 hp (1.5–1,119 kW). Rate of flow (at BEP) is 15–40,000 gpm (3.4–9,100 m3/h). Applications with conditions outside of these ranges are beyond the scope of this standard, but pumping equipment may be available for extremes. Check with the pump OEMs. This standard does not include drivers. The maximum steady-state pressure at the pump discharge is limited to the pressure rating for the ANSI/AWWA C115/A21.15.11 class of flange shown for the pump discharge sizes. Refer to Hydraulic Institute (HI) Standard ANSI/HI 14.1-14.2 for a description of pump types.

PDF Catalog

PDF Pages	PDF Title
9	Foreword III.A. Purchaser Options and Alternatives. The following information should be provided by the purchaser: II. Special Issues. It is the responsibility of the user of an AWWA standard to determine that the products described in that standard are suitable for use in the application being considered. Users of solids handling pumps should not expect long-lasting
11	AWWA Standard SECTION 1: GENERAL Sec. 1.1 Scope
12	Sec. 1.2 Purpose Sec. 1.3 Application SECTION 2: REFERENCES
13	SECTION 3: DEFINITIONS
18	SECTION 4: REQUIREMENTS Sec. 4.1 Data to Be Provided by the Purchaser
24	Sec. 4.2 Materials
25	Sec. 4.3 General Design: Common to Wastewater Pumps
28	Sec. 4.4 Design: Wastewater Pumps
29	Sec. 4.5 Vibration
30	SECTION 5: VERIFICATION Sec. 5.1 Basis for Rejection Sec. 5.2 Factory Tests Sec. 5.3 Required Submittals from Manufacturer
33	SECTION 6: DELIVERY Sec. 6.1 Marking Sec. 6.2 Packaging and Shipping
34	Sec. 6.3 Affidavit of Compliance
35	APPENDIX A Pump Hydraulics SECTION A.1: INTRODUCTION SECTION A.2: BACKGROUND
36	Figure A.3a Typical pump performance as related to the BEP SECTION A.3: �PUMP HYDRAULIC CHARACTERISTICS
37	Figure A.3b Typical pump performance with POR and AOR
38	Figure A.3c Added NPSH3 curve
39	Figure A.3d Centrifugal relative life expectancy curve
40	Table A.1 Ranking of impeller types in terms of how they handle fluids with various types of solids
41	Figure A.3e Typical range chart for various impeller types
43	APPENDIX B Wearing Ring Design SECTION B.1: GENERAL Figure B.1 Radial wearing ring
44	Figure B.2 Setscrews for wearing ring retention
45	Figure B.3 Cap screws for wearing ring retention
46	Figure B.4 “L” wearing ring design
47	Figure B.5 Clean water flush of the wearing ring
49	APPENDIX C Clogging SECTION C.1: GENERAL SECTION C.2: MINIMIZING CLOGGING
50	Figure C.2 Clogging for the solids bearing liquid SECTION C.3: �IMPROPER PUMP SPECIFICATION OR SELECTION
51	SECTION C.4: �INTAKE OR SUCTION PIPE DESIGN Figure C.3 Operating range vs. operating speed
52	Figure C.4 Intake design (example for illustrative purposes only) SECTION C.5: �OPERATING AND CONTROL PROCEDURES
53	SECTION C.6: �IMPELLER AND PUMP DESIGN Figure C.6a Semi-open Figure C.6b Rope
54	Figure C.6c Impellers SECTION C.7: �CUTTER, CHOPPER, AND GRINDER PUMPS
55	SECTION C.8: SCREW IMPELLER PUMPS Figure C.7 Grinder pump Figure C.8 Screw impeller pump
56	Figure C.9 Vortex impeller pump SECTION C.9: �VORTEX OR RECESSED IMPELLER PUMPS SECTION C.10: �SCREENING OR COMMINUTION
57	APPENDIX D General Operation, Information, and Pump Types SECTION D.1: General Information SECTION D.2: �Station Operating Parameters
58	SECTION D.3: Inlet Conditions SECTION D.4: Operating Region
59	SECTION D.5: Drivers SECTION D.6: �Driver Mounting and Compatibility
60	SECTION D.7: Materials SECTION D.8: Corrosion and Erosion SECTION D.9: Clogging
61	SECTION D.10: Coatings SECTION D.11: Pump Tests
62	SECTION D.12: Vibration limits
64	SECTION D.13: Specific Pump Types
65	Figure D.1 OH1—Overhung impeller; flexibly coupled; foot mounted; single stage
66	Figure D.2 OH1h—Overhung impeller; flexibly coupled; foot mounted; self-priming; single stage
67	Figure D.3 OH3g—Overhung impeller; flexibly coupled; vertical; end suction; single stage
68	Figure D.4 OH5g—Overhung impeller; close-coupled; vertical; end suction; single stage; vertically mounted
69	Figure D.5 OH7—Overhung impeller; close-coupled; horizontal; single stage; end suction
70	Figure D.6 OH8b—Overhung impeller; close-coupled; submersible; volute; single stage; end suction
71	Figure D.7 OH8b—Overhung impeller; close-coupled; submersible; volute; single stage; end suction grinder
72	Figure D.8 OH8b—Overhung impeller; close-coupled; submersible; volute; single stage; end suction chopper
73	Figure D.9 VS1—Vertically suspended; single-casing; discharge through column; short-set diffuser pump
74	Table D.1a Pump parts and definitions (numerical)
75	Table D.1a Pump parts and definitions (numerical) (Continued)
76	Table D.1a Pump parts and definitions (numerical) (Continued)
77	Table D.1a Pump parts and definitions (numerical) (Continued)
78	Table D.1a Pump parts and definitions (numerical) (Continued)
79	Table D.1b Pump parts and definition (alphabetical)
80	Table D.1b Pump parts and definition (alphabetical) (Continued)
81	Table D.1b Pump parts and definition (alphabetical) (Continued)
82	Table D.1b Pump parts and definition (alphabetical) (Continued)
83	Table D.1b Pump parts and definition (alphabetical) (Continued)
84	Table D.1c Pump part standard, upgrade, and severe duty materials
85	Table D.1c Pump part standard, upgrade, and severe duty materials (Continued)
86	Table D.1c Pump part standard, upgrade, and severe duty materials (Continued)
87	Table D.1c Pump part standard, upgrade, and severe duty materials (Continued)
88	Table D.2 Pump part material classes
89	Table D.2 Pump part material classes (Continued)
90	Table D.2 Pump part material classes (Continued)
91	Table D.2 Pump part material classes (Continued)
92	Table D.3 ASTM material designations