P.I.T. EC5M [2/18] Series ec ed

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Base Mounted Turbine Pumps

USA: (937) 778-8947 • Canada: (905) 457-6223 • International: (937) 615-3598

A Crane Co. Company

www.cranepumps.com

1/06

Series: EC & ED

Features

BURKS Turbine Pumps are designed for pumping any clean, non-corrosive, non-

abrasive lower viscosity liquid on low ﬂ ow, high head applications. They are used

in a wide range of industries.

• BOILER FEED

• CONDENSATED RETURN

• HEAT TRANSFER

• HOT AND COLD WATER CIRCULATION

• JOCKEY PUMP

• HYDRAULIC OIL CIRCULATION

• HIGH PRESSURE SPRAY

• BRINE CIRCULATION

• PRESSURE BOOSTER

• ADDITIVE METERING

1. PUMP SHAFT

No. 303 stainless steel

2. POWER FRAMES

Power frames are supplied with grease lubricated ball bearings. Wide bearing

spacing provides solid shaft support. Tapped and plugged openings are

conveniently located for easy relubrication of power frame. Grease relief holes

prevent over-lubrication.

3. IMPELLER

The bronze impeller, with monel metal blades secured in slots in the liquid

channel by means of a brazing process, is the only moving part. Annular

grooves or sealing rings are machined in the face of the impeller. These

grooves are perfectly matched with corresponding grooves in the raceway and

intermesh without metal to metal contact to form a labyrinth seal.

4. RACEWAY

The bronze raceway is the mating part to the impeller. Sealing grooves are

machined into the face of the raceway to match the impeller sealing grooves

reducing water slippage to a minimum, resulting in better efﬁ ciencies, while

reducing the possibility of vapor bind.

5. “LIFE-LOK”® EXTERNAL ADJUSTMENT

The adjusting screw is located in the power frame on Independent Pumps. A

positive pre-load spring pressure is applied to the pump shaft bearing and in

turn, is transmitted to the adjusting screw. This controlled pressure eliminates

bearing end-play and provides a means for external adjustment of the

clearance between the impeller and raceway. The distinct advantage of this

exclusive BURKS feature is the positive means provided to establish the initial

clearance between the impeller and raceway, plus providing a means for

external readjustment to compensate for any possible wear between these

parts. The customer beneﬁ t of this exclusive feature is the fact that

readjustment can be made without disassembling the pump or disturbing the

piping.

6. MECHANICAL SHAFT SEAL

The leakproof mechanical shaft seal for temperatures to 225°F (107°C), is

self-adjusting. A wide variety of mechanical seals are available for handling

liquids other than water.

7. JACKETED SEAL CAVITY FOR TEMPERATURES TO 500°F (260°C)

Series EC & ED Pumps are available in a Jacketed Seal Cavity design for

pumping hot oil, hot water and heat transfer ﬂ uids in common use in high

temperature heating or cooling applications. This feature greatly extends seal

life

in high temperature applications. To order, add sufﬁ x “J” to pump catalog

number for temperatures below 400°F (204°C) and add sufﬁ x “JK” to pump

catalog number for temperatures over 400°F (204°C). Example: EC6MJ.

See Section on High Temperature Pumps for more information.

8. CASING

Casing is close grain iron of 30,000 p.s.i. minimum tensile strength. Should

the

pump require service there’s no need to disturb the piping - the casing stays in

the line.

9. SELF PRIMING

Once casing is ﬁ lled with water - will handle water, air or a mixture of both to

high pressure.

10. FACTORY TESTED

Every pump factory tested for capacity, head and power consumption.

MAXIMUM OPERATING CONDITIONS

HORSEPOWER WITH C POWER FRAME 5 HP

HORSEPOWER WITH D POWER FRAME 15 HP

TEMPERATURE

(For Standard Buna-N Seal)

225ºF (107ºC)

INLET PRESSURE 50 PSI (344kPa)

CASING WORKING PRESSURE 200 PSI (1379kPa)

INTERCHANGEABILITY CHART

Catalog No. Replaces Catalog No. Replaces

EC4M E16M ED8M E23M

EC5M EC17M ED9M E24M

EC6M E18M ED10M E25M

EC7M E19M ED11M E26M

EC8M E20M ED12M E27M

EC9M E21M ED14M E29M

EC10M E22M

MATERIALS OF CONSTRUCTION

PART BRONZE FITTED ALL BRONZE

Power Frame Cast Iron Bronze

Casing Cast Iron Bronze

Strainer Cast Iron (Brass Screeen) Bronze (Brass Screen)

Impeller Bronze (Monel Blades) Bronze (Monel Blades)

Raceway Bronze Bronze

Shaft #303 Stainless #303 Stainless

Shaft Seal Carbon-Ceramic

SS - Buna-N

Carbon-Ceramic

SS - Buna-N

P.I.T. EC5M [2/18] Series ec ed

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