CPT ANSI Process Pumps
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CPT ANSI Process Pumps

On the outside, the CPT offers special features that simplifies maintenance and adjustments. The real difference between the CPT and other ANSI pumps, however, is what you'll find inside. For example, the standard CPT wet-end components are cast in duplex stainless steel (unless specified otherwise). Another example is our heavy-duty bearing unit, designed for long life and tough applications. As you can see, our CPT ANSI process pump gains its advantage from the inside-out. Centerline discharge • Back pull-out design allows maintenance of the rotating assembly without disturbing the piping...

[6 Sealing versatility • A variety of rear covers/stuffing box designs are available to meet process requirements • Packing • Mechanical seal - Large bore - Taper bore (cast-in ribs for flow enhancement) • Dynamic seal [7 Flanges • Meet ASME/ANSI Standards • Class 150 RF Standard, optional: Class 300 RF [7 Bearing housing adapter • Ductile iron for strength and safety • Jacking bolts for ease of disassembly • Rabbeted fit to bearing housing assures accurate alignment [7 Bearing monitor • Taps as standard 17 Impeller clearance adjustment • Quick and accurate impeller adjustments without the...

Hydraulic Coverage Capacity range 3600 rpm 30 Capacity range 1800 rpm Head H (ft) 330 280 250 Best efficiency point

CPT pump dimensions Group Note that CPT 11-3 is not part of ANSI specification and may have different dimensions. Designates higher hydraulic range. Note that numbers depend on pump size D=8.257D=10”.

A-890 grade 3A Alloy Sulzer CPT ANSI pumps are frequently used in services where resistance to both corrosion and abrasion is necessary. That is why the standard stainless steel chosen for wet-end pump components is ASTM A-890 Grade 3A. This duplex cast steel (ferritic austenitic) with high molybdenum and nitrogen content: • Offers corrosion resistance superior to conventional cast 316SS (CF-8M) and equal to or better than 317SS (CG-8M). • Provides excellent abrasion resistance (230 BHN) that, when used in mildly abrasive services, may last 30% to 40% longer than 316SS. • Features clearly...

Corrosion resistance Pitting and crevice corrosion that occurs in metals are of particular interest in stainless steel. The Pitting Resistance Equivalence (PRE*) is an index that can help identify an alloy's susceptibility to these forms of corrosion. The higher the PRE* number, the greater the metal's resistance to pitting and crevice corrosion. Heat treatment All A-890 Grade 3A castings are solution annealed to maximize corrosion resistance and mechanical properties. This heat treatment consists of heating to and holding at 1950°F minimum for a prescribed time period followed by a rapid...

Sulzer CPT-LF Pumps – Designed for Your Demanding Low Flow Applications Not all end suction pumps are intended to be run at low flow/high head conditions. The Sulzer CPT Low-Flow ANSI pump is specifically designed to eliminate hydraulic and mechanical issues normally experienced at these operating points. Standard ANSI pumps are typically throttled back to meet low flow conditions. This may cause higher than normal radial loads and shaft deflection, resulting in premature bearing and mechanical seal failure. The Sulzer radial vane impeller and concentric casing design greatly reduce this...

Shaft Sealing Dynamic seal Sulzer’s dynamic seal uses an expeller to move liquid back into the volute casing and away from the stuffing box when the pump is running. When the pump stops, liquid flows back into the stuffing box, forcing closed an elastomeric static seal to prevent leakage. No outside flush required. Saves water, piping costs and eliminates packing maintenance. Sulzer Dynamic Seal running Seal chambers The CPT design offers a variety of seal chambers. Each is designed to help you tailor your CPT pump to your specific process requirements Standard Bore Box accommodates most...

Baseplate Options Sulzer produces rigid baseplate designs that resist the distortion which can cause pump/motor misalignment. Our baseplates require minimal maintenance and are corrosion resistant for severe environments. Sulzer Pumps offers a complete range of mounting systems to meet your requirements. Optional V-belt and custom designs are also available. Contact your local Sulzer representative for details. Standard baseplate (style 1) Sulzer Pumps standard formed steel baseplate meets ANSI specifications for pump/motor mounting. A single grout hole and epoxy paint are standard. An...

Bearing Unit The bearing unit is built as standard for high load applications. Some applications push a power end beyond ANSI design limits. Examples are: 1) operation at reduced flows 2) pumping high specific gravity liquids 3) overhung belt drives Impeller Clearance Adjustment • Quick and accurate impeller adjustments without the use of a feeler gauge or removal of pump • Assures concentricity and bearing alignment throughout the impeller’s adjustable range • No snap ring required to hold bearing *See engineering data for bearing details The bearing unit features as standard: • Splash oil...

At Sulzer we are dedicated to providing rapid turn around, high quality remanufactured bearing units. Operators can put equipment repaired by us back into service confident in the knowledge that it is “good as new”. The continuous availability and high operating performance of pumps is the key target for our customer support service organization. Through our highly experienced personnel and application knowledge, we provide a full range of innovative service solutions to our customers to keep their pumps running including; • Spare parts • Field service • Repair services • Retrofits •...

Original spare parts ensure optimum pump performance Sulzer original spare parts maintain equipment performance by • Restoring high operational efficiency • Optimizing energy consumption • Minimizing unexpected failures Original equipment spare parts are often more than a simple ‘new for old' replacement. Our commitment to continuous improvement often allows us to supply replacement parts with enhanced performance over the original. Sulzer Pumps spare parts are at the heart of innovative new hydraulic and mechanical designs or sealing solution retrofits that extend equipment life and reduce...