Section 15121 INLINE STATIC MIXERS

Section 15121

INLINE STATIC MIXERS

PART 1 - GENERAL

1.1 THE REQUIREMENT

A. The CONTRACTOR shall furnish and install inline static mixers as shown and as specified herein, complete and operable including accessories in accordance with the requirements of the Contract Documents.

1.2 RELATED WORK SPECIFIED ELSEWHERE

A. The requirements of the following sections and divisions apply to the Work of this section. Other sections and divisions of the Specifications, not referenced below, shall also apply to the extent required for proper performance of this Work.

Section 15000, Piping, General

Section 15030, Piping Identification Systems

1.3 REFERENCE SPECIFICATIONS, CODES, AND STANDARDS

A. All Work specified herein shall conform to or exceed the applicable requirements of the referenced portions of the following publications to the extent that the provisions thereof are not in conflict with other provisions of these Specifications.

B. Comply with the applicable editions of the following codes, regulations and standards.

Codes and Regulations

CCR California Code of Regulations, Title 17, Public

Health

Industry Standards:

AWWA C207 Steel Pipe Flanges for Waterworks Service - Sizes 4 Inches through 144 Inches

Other Standards:

ANSI American National Standards Institute

ASTM American Society for Testing and Materials

C. Comply with the applicable reference Specifications as directed in the General

Requirements and Additional General Requirements.

1.4 CONTRACTOR SUBMITTALS

A. Submittals shall be made in accordance with the General Requirements, Additional

General Requirements and as specified herein.

B. Submittals shall be made in accordance with Section 15000, Piping, General.

C. Shop drawings with mixer in position and orientation, as shown on the Drawings. D. Manufacturer's Affidavits and Certificates of compliance as specified.

E. Calculations are to be shown for flow characteristics, flow velocity and pressure drop.

F. General:

1. Materials.

2. Parts.

3. Accessories.

4. Assembly.

5. Installation.

6. Manufacturer.

7. Type and model.

8. Dimensions and net weight.

9. Materials of construction.

10. Mounting requirements.

1.5	QUALITY ASSURANCE
	A. General:
	1. All static mixers shall be tested in accordance with recommendation and applicable AWWA/ANSI specifications.	manufacturer's

2. If an alternative mixer needs to be considered, the following information shall be supplied for each alternative component:

a. Product Data sheets for make and model being supplied

b. Complete catalog information, descriptive literature, specifications and identification of materials of construction.

c. Material of construction with ASTM reference and grade. Submit

Manufacturer’s certificates of compliance with referenced standards. d. Operations and Maintenance Manual.

3. Manufacturer with at least five years of experience in the type of equipment or service being provided.

1.6 WARRANTY

A. One year full product warranty shall be provided by manufacture of product.

PART 2 - PRODUCTS

2.1 INLINE STATIC MIXERS

A. Mixing element should be a triple-action mixing or helical plate design producing cross current mixing and counter splitting-rotating vortices shall be provided which produce a high degree of back mixing at the designed flow rates with minimum pressure drop.

B. Design Requirements

1. Mixing Chemicals: Polymer and water

2. Flow Rate:

a. 15 to 60 GPM for thickening polymer feed.

b. 30 to 100 GPM for the dewatering polymer feed.

3. Media:

a. Dilute polymer 0.5 percent. b. Viscosity: Up to 1,000 cps.

4. Line Size: 3 inches diameter.

5. Number of Mixing Elements: Two (2) minimum.

6. Maximum Length: 48 inches maximum.

7. Pressure Drop: Maximum 5 pounds per inch.

8. Connection, Main Line: ANSI B16.5, Class 150, Raised Face flanges.

9. Connections: .Flanged.

10. Sideports: None.

11. Materials of Construction: All 316 stainless steel construction including body, flanges and mixing elements.

12. Static Mixer Diameter: Maximum of 4-inches. C. Manufacturers and models, Or Equal:

1. Komax Systems, Inc.

2. Koflo Corporation.

3. Lightnin/SPX Corporation.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Install inline static mixers according to the applicable requirements of Section 15000, Piping, General.

3.2 IDENTIFICATION

A. Inline Static Mixers shall be identified with labels or tags as specified in Section

15030, Piping Identification Systems.