539883 3 Goulds 3656 M Series End Suction Flanged Centrifugal Pump Close Coupled Specifications

: Pump 539883 3 Goulds 3656 M Series End-Suction Flanged Centrifugal Pump Close-Coupled Specifications 539883_3_Goulds 3656 M Series End-Suction Flanged Centrifugal Pump Close-Coupled Specifications pdf

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ENGINEERING DATA

D3656M

Model 3656 M&L-Group

Close-Coupled Unit

TYPICAL ENGINEERING SPECIFICATIONS

I. SCOPE

The contractor shall provide (quantity) close coupled, end suction centrifugal pump unit/s, Model 3656

M&L-Group as manufactured by Goulds Water Technology or equal.

All pump units shall be of one manufacturer and provided complete including electric motor drive.

II. CONDITIONS OF SERVICE

A. Equipment item number

B. Flange Inside Diameter

Suction (inches) FF

Discharge (inches) FF

C. Primary Service Condition

Capacity (GPM)

Total Head (feet)

Efficiency (%)

D. Minimum Total Head at Shutoff (feet)

E. Maximum Impeller Diameter (inches)

F. Operating Speed (RPM)

G. Maximum Motor HP

III. PUMP CONSTRUCTION

Each pump shall be designed for clockwise rotation viewed from driven end and include the following design

features.

A. PUMP END COMPONENTS

A.1. Casing

The pump casing shall be spiral volute type, back pull-out design with ANSI Class 150 flat faced

flanged suction and discharge connections above 2½" size and shall be constructed of Cast Iron,

ASTM A48 CL30 material.

The pump discharge nozzle shall be tangentially oriented.

The complete pump unit shall be supported by the power frame.

A pump casing drain shall be provided with a (zinc plated steel) pipe plug.

A.2. Wear Ring

Replaceable casing and seal housing wear ring of , (Cast Iron ASTM A48 CL20 or Lead Free

Bismuth Bronze) shall be provided and held securely by means of interference fits.

A.3. Impeller

The pump impeller shall be of enclosed design, constructed of , (Cast Iron ASTM A48 CL20

or Lead Free Sil-Brass ASTM B584) material and key driven. A stainless steel bolt and washer shall

provide positive attachment of the impeller to the motor shaft.

A.4. Seal Housing/Adapter

The seal housing and motor adapter shall be of 1-piece design, constructed of Cast Iron, ASTM

A48 CL20. Registered mating fits to the pump casing and power frame shall maintain positive unit

alignment and support. Sealing of casing pressure shall be maintained by an “O-ring” of BUNA-N,

EPR or Viton material. Motor and casing connection shall be held securely by means of grade 5, high

strength hex cap screws.

A bottom drainage port shall be provided to allow condensation or seal leakage to drain and not be

retained within the adapter.

A.5. Mechanical Seal

The pump shaft seal shall be a John Crane Type 21 mechanical seal or equal constructed of the

following materials. Packed box shaft sealing is also available.

A.6. Shaft Sleeve

The pump shaft sleeve shall be constructed of AISI Type 303 stainless steel and shall be of the hook

type design, locked in place by the impeller without necessity of other mechanical locking devices.

IV. ELECTRIC MOTOR

The pump drive motor shall be non-overloading of NEMA standard design JM-frame suitable for horizontal

mounting and close coupled to the pump unit as described above.

The motor rating shall be:

HP, RPM

phase, Hz, volts

Totally enclosed, fan cooled enclosure

1.15 Service Factor

High Efficiency

V. TESTING

A. Each pump casing shall be hydrostatically tested by the manufacturer in accordance with Hydraulic Institute

Standards at 250 PSIG.

B. Production performance testing will be conducted by the manufacturer on each pump unit. Head at three

operating points (70% of BEP, BEP and 120% of BEP) will be measured at design speed to verify performance.

Seal Type Stationary Rotating Elastomers Metal

Face Face Components

Standard Ceramic BUNA-N

Option Carbon EPR 18-8 SS

Option Sil-Carbide Viton

Option Sil-Carbide

Goulds is a registered trademark of Goulds Pumps, Inc. and is used under license.

© 2012 Xylem Inc. D3656M July 2003

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