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Mark III Pump Specs

100% dimensionally interchangeable with Durco (Flowserve) Mark III -- Group I, II, and III frames. Reverse vane impeller design reduces axial thrust and seal chamber pressure.
External impeller adjustment mechanism -- the industry most innovative design. Allows fast, accurate impeller clearance setting without pump disassembly.
Full wet-end alloy coverage: Hastelloy C-276, Titanium Pd7B, CD4MCuN duplex, CN7M Alloy 20, Nickel, Zirconium. 20-40% cost savings vs OEM with identical performance.
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Product Details

Application Chemical processing, petrochemical refining, corrosive chemical transfer, pulp & paper mill liquors, reverse vane impeller applications, high-temperature services, MRO replacement programs, EPC project procurement
Flow Rate Up to 7,500 GPM (1,703 m3/h)
Head Range Up to 990 ft (302 m)
Temperature -73 degrees C to 370 degrees C (-100 degrees F to 700 degrees F)
Materials CF8M (316SS), CD4MCuN (Duplex), CN7M (Alloy 20), WCB (Carbon Steel), Hastelloy B, Hastelloy C-276, Nickel 200, Titanium Grade Pd7B, Zirconium 702
Pressure Rating Up to 27 bar (400 PSIG)

The mark 3 chemical system pump presents high-quality hydraulic overall performance, unrivaled reliability and coffee overall price of possession. Conforming to ASME(ANSI) B73.1, the mark 3 consists of many tested reliability- and overall performance-enhancing functions.

 

The resultant advantages are:

• Renewable, high-efficiency overall performance over the lifestyles of the pump with the opposite vane impeller.

• Most advantageous, predictable seal chamber pressures which are re-hooked up after each impeller putting.

• Maximal mechanical seal lifestyles because of a super seal.

• Sturdy shaft and bearing designs that minimize shaft deflection and extend mechanical seal and bearing life.

• Fast and accurate impeller setting with the industry’s maximum innovative external impeller adjustment mechanism.

• In-shop reverse vane impeller adjustment with the best pump that takes full gain of the lower back pull-out design.

Part Name

Material

Ductile Iron

316SS

CD4MCu

Alloy 20

Nickel

Hastelloy C

Titanium

Casing

316SS

CD4MCu

Alloy 20

Nickel

Hastelloy C

Titanium

Impeller

316SS

CD4MCu

Alloy 20

Nickel

Hastelloy C

Titanium

Cover

316SS

CD4MCu

Alloy 20

Nickel

Hastelloy C

Titanium

Frame

Ductile Iron

Bearing Housing

Ductile Iron

Adaptor

Ductile Iron

Shaft

316SS/4140

Sleeve

316SS

CD4MCu

Alloy 20

Nickel

Hastelloy C

Titanium

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