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Thermal Oil and Hot WaterCentrifugal Pumps
Colfax Americas1710 Airport RoadMonroe, NC 28110 USA
Tel: (704) 289-6511(877) 853-7867
Fax: (704) 289-9273www.colfaxcorp.com
BR000CEN Rev. 01 (08-0439)
Allweiler, Fairmount Automation, Imo, Tushaco, Warren and Zenith are registered trademarks and Colfax, Colfax Corporation and Houttuin are trademarks of Colfax Corporation. All other trademarks are the property of their respective owners. ©2008 Colfax Corporation. All rights reserved.
ALLHEAT®
ALLHEAT® In-Line Design NIWH, CIWHALLHEAT® Series Centrifugal Pumps
The ALLHEAT® series centrifugal pump was designed spe-cifically for safe pumping of hot fluid medias. This versatile and universally applied pump series offers the best techni-cal solution at an excellent price for pumping mineral and synthetic thermal oils at temperatures up to 660oF or hot water up to 400oF. The main features this product brings to the marketplace include:
• Low Viscosity Capability (0.2 centistokes min.)
• Safety Packing Rings to isolate contaminates
• Excellent Price/Performance Ratio
• Robust mechanical design with stiffening ribs
• Patented large oil reservoir for the mechanical seal including a patented seal chamber gas venting system
• No additional cooling required for the seal chamber or bearings
• Interchangeable internal parts for foot mounted, block and in-line designs
• High efficiency impeller/casing combination
• Available with balanced or unbalanced mechanical seals
• Insert kits available to upgrade older NTT, CTT series thermal oil pump designs
• Long life and low maintenance sleeve in-board journal bearings
• Long life, permanently greased, sealed outboard roller bearing
• Double cardanic couplings for high temperature misalignment protection and ease of insert removal
Block Design(Integrated pump and motor-Series NBWH & CBWH)
Foot Mount(Series NTWH & CTWH)
Inline Design (Integrated vertical or horizontal pump and motor-Series NIWH & CIWH)
The ALLHEAT® concept is also available in a space sav-ing block and in-line design. The drive motor is flange mounted directly to the pump. The ALLHEAT® in-line pump can also be simply installed into the piping system without any need for a separate support.
• Available in foot mount pump-to-motor (NTWH or CTWH) or integrated pump to motor designs (NIWH or CIWH). (NBWH or CBWH) as shown above.
• Integrated pump-motor design (NIWH or CIWH). (NBWH or CBWH), includes an integrated seal chamber, cooling fan, and integrated motor shaft cou-pling
-ruoj dna tfahs tnereffid owt ni elbaliava era spmup llA •nal bearing arrangements:
• Carbon journal bearing on a steel shaft with a non-bal-anced mechanical seal for thermal oil viscosities as low as 0.2 centistokes and temperatures up to 660oF or for hot water up to 360oF
• Sintered Silicon Carbide (SSiC) journal bearings and balanced mechanical seal for hot water applications exceeding 360oF to as high as 400oF or for highly con-taminated thermal oil applications
ALLHEAT® pumps have been rigorously tested during continuous fac-tory tests carried out on ALLWEILER’s thermal oil and hot water test stand and during practical tests carried out in selected customer’s plants since 2000 and 2001 respectively.
Standard IEC Motor
Optimized hydraulicsHighly efficient impellers
In-line housing for horizontal or vertical installation (Vertical installation motor faces upward.)
Extra long bearing sleeve
Special patented sealing space
Integratedmotor coupling
Balanced or non-balanced mechanical shaft seal available
One piece lantern
Cooling fan
Pressure resistanthousing parts made from nodular cast iron
NIWH 150# raised face flanges dimensionally compatible with ANSI B 16.2.
CIWH 300# raised face flange also compatible with ANSI B 16.2
Maintenance friendlyEasy to dismantle. Pump housing can remain in pipeline.
Safety Glandprevents contamimation from entering the sleeve bearing & the mechanical seal
Hydraulically balanced impellers minimize axial thrust
Performance DataSeriesOutput of up to 970 gpm
NIWH
Max. differential head 300 ft.460 gpm
CIWH
190 ft.Temperatures of pumped media
Thermal oil up to 660oF
300oFHot water up toCasing pressure 230 psi
660oF
360/400oF230/360 psi
Material Nodular Iron Nodular Iron
Your pumping requirements demand safe, reliable transfer of high temperature materials including heat transfer fluids and hot water without the need for costly auxiliary cooling or expensive shaft sealing systems.
32°F
122°F
212°F
302°F
392°F
482°F
572°F
660°F
32°F
56°F
112°F
168°F
224°F
280°F
336°F
392°F
ALLHEAT® DesignALLHEAT® Block Design NBWH, CBWH
Performance DataSeriesOutput of up to 1200 gpm
NBWH
Max. differential head 300 ft.1100 gpm
CBWH
205 ft.Temperatures of pumped mediaThermal oil up to 660oF
360oFHot water up toCasing pressure 230 psi
660oF
360/400oF230/360 psi
Material Nodular Iron Nodular Iron
Series NTWH or CTWH with carbon journal
bearing at 600oF,
100oF ambient, 3500 rpm
Thermal Oil Temperature Capability Curve Hot Water Temperature Capability Curve
Series NTWH or CTWH with SSiC journal
bearing 400oF,
100oF ambient, 3500 rpm
Pressure resistanthousing parts made from nodular cast iron
NBWH 150# raised face flanges dimensionally com-patible with ANSI B 16.2.
CBWH 300# raised face flange also compatible with ANSI B 16.2.
Balanced or unbalanced mechanical seal available
Cooling fan
Integratedmotorcoupling
Standard IEC Motor
One piece lantern
Extra long journal bear-ing
Safety Glandprevents contamination from entering the sleeve bearing and the mechnical seal.Maintenance friendly
Easy to dismantle. Pump housing can remain in pipeline.
Optimized hydraulics Highly efficient impellers
Hydraulically balancedimpellers minimize axial thrust.
1750 rpm Performance Curves
100-
400/0
2
125-200/01
80-1
60/0
150-1
60/0
1
NTWH
25-200/01
25-160/11
32-160/01
32-200/01
40-200/01
40-160/01
40-250/01
50-200/01
50-250/01
65-160/01
65-200/02
250-400/01
65-400/01
80-400/02
65-315/01
65-250/01
80-200/02
80-250/01
100-160/01
100-200/01
80-315/01
100-315/01
100-250/01
125-250/01
150-200/01
125-315/01
150-315/01
150-250/01
200-315/01
125-
400/0
2
150-400/02 200-400/01
250-315/01
200-250/02
n = 1750 rpm
3500 rpm Performance Curves
NTWH
100-
200/
01
25-200/01
25-160/11
32-200/01
32-160/01
40-200/01
40-250/0150-250/01
50-200/0165-200/02
80-200/02
40-160/01
50-160/01
65-160/01
80-160/01
n = 3500 rpm
ALLHEAT® Foot Mounted Design NTWH, CTWH
Performance Data
Series
Output of up to 5500 gpm
NTWH
Max. differential head 330 ft.
5500 gpm
CTWH
330 ft.
Temperatures of pumped media
Thermal oil up to 660oF
360oFHot water up to
Casing pressure 230 psi
660oF
360/400oF
230/360 psiMaterial Cast Iron Cast Iron
Maintenance friendly Easy to dismantle. Pump housing can remain in pipeline.
Safety Glandprevents contamination from entering the sleeve bearing and the mechani-cal seal.
Hydraulically balanced impellers minimize axial thrust.
Optimized hydraulics Highly efficient impellers
NTWH OR CTWH
The ALLHEAT® series was particularly designed forthe safe pumping of hot media.
This pump offers the best technical solution at anexcellent price for pumping thermal oil at tempera-tures up to 660oF or hot water up to 400oF.
Pressure resistanthousing parts made from cast iron.
NTWH 150# raised face flanges dimen-sionally compatible with ANSI B 16.2.
CTWH 300# raised face flange also compatible with ANSI B 16.2.
ALLHEAT® Foot Mounted Design NTWH, CTWHALLHEAT® Foot Mounted Design NTWH, CTWH
Performance Data
Series
Output of up to 5500 gpm
NTWH
Max. differential head 330 ft.
5500 gpm
CTWH
330 ft.
Temperatures of pumped media
Thermal oil up to 660oF
360oFHot water up to
Casing pressure 230 psi
660oF
360/400oF
230/360 psiMaterial Nodular Iron Nodular Iron
Maintenance friendly Easy to dismantle. Pump housing can remain in pipeline.
Safety Glandprevents contamination from entering the sleeve bearing and the mechani-cal seal.
Hydraulically balanced impellers minimize axial thrust.
Optimized hydraulics Highly efficient impellers
NTWH OR CTWH
The ALLHEAT® series was particularly designed for the safe pumping of hot media.
This pump offers the best technical solution at an excellent price for pumping thermal oil at tempera-tures up to 660oF or hot water up to 400oF.
Pressure resistant housing parts made from nodular cast iron.
NTWH 150# raised face flanges dimen-sionally compatible with ANSI B 16.2.
CTWH 300# raised face flange also compatible with ANSI B 16.2.
Stiffening ribsprovide optimum mechanical strength and rigidity.
Long cooling sectionprovides optimum temperature reduction resulting in a cooler seal chamber. No additional cooling required.
Large reservoir provides adequate lubrication to the mechanical seal and patented anti-rotation fluid degassing system.
Roller Bearing Optimized long life sealed rolling bearing with non-washable grease.
Modular construction makes use of identical parts for foot mounted block and in-line mod-els.
Solid sleeve bearing, lubricated by pumped fluid. Capable of high radial loads. Available in SSiC on SSiC or carbon on steel.
Mechanical Seals Balanced or unbalanced, maintenance-free stan-dard mechanical seals with chambered O-ring. No additional cooling required.
375
300
225
150
75Vapor Pressure
of Water
NTWH, NBWH, NIWH
CTWH, CBWH, CIWH
Maximum Casing Pressure Capabilityat Various Temperatures
Pres
sure
, PSI
G
Media Temperatures, °F100 200 300 400 500 600
ALLHEAT® Block Design NBWH, CBWH
Performance DataSeriesOutput of up to 1200 gpm
NBWH
Max. differential head 300 ft.1100 gpm
CBWH
205 ft.Temperatures of pumped mediaThermal oil up to 660oF
360oFHot water up toCasing pressure 230 psi
660oF
360/400oF230/360 psi
Material Cast Iron Cast Iron
Pressure resistanthousing parts made from cast iron
NBWH 150# raised face flanges dimensionally com-patible with ANSI B 16.2.
CBWH 300# raised face flange also compatible with ANSI B 16.2.
Balanced or unbalancedmechanical seal available
Cooling fan
Integratedmotorcoupling
StandardIEC Motor
One piece lantern
Extra long journal bear-ing
Safety Glandprevents contamination from entering the sleeve bearing and the mechnical seal.Maintenance friendly
Easy to dismantle. Pump housing can remain in pipeline.
Optimized hydraulics Highly efficient impellers
Hydraulically balancedimpellers minimize axial thrust.
ALLHEAT® In-Line Design NIWH, CIWH
Standard IEC Motor
Optimized hydraulicsHighly efficient impellers
In-line housing for horizontal or vertical installation (Vertical installation motor faces upward.)
Extra long bearing sleeve
Special patented sealing space
Integratedmotor coupling
Balanced or non-balancedmechanical shaft seal available
One piece lantern
Cooling fan
Pressure resistanthousing parts made fromcast iron
NIWH 150# raised face flanges dimensionally compatible with ANSI B 16.2.
CIWH 300# raised face flange also compatible with ANSI B 16.2
Maintenance friendlyEasy to dismantle. Pump housing can remain in pipeline.
Safety Glandprevents contamimation fromentering the sleeve bearing & the mechanical seal
Hydraulically balanced impellers minimize axial thrust
Performance DataSeriesOutput of up to 970 gpm
NIWH
Max. differential head 300 ft.460 gpm
CIWH
190 ft.Temperatures of pumped media
Thermal oil up to 660oF
300oFHot water up toCasing pressure 230 psi
660oF
360/400oF230/360 psi
Material Cast Iron Cast Iron
Thermal Oil and Hot WaterCentrifugal Pumps
Colfax Americas1710 Airport RoadMonroe, NC 28110 USA
Tel: (704) 289-6511(877) 853-7867
Fax: (704) 289-9273www.colfaxcorp.com
BR000CEN Rev. 01 (08-0439)
Allweiler, Fairmount Automation, Imo, Tushaco, Warren and Zenith are registered trademarks and Colfax, Colfax Corporation and Houttuin are trademarks of Colfax Corporation. All other trademarks are the property of their respective owners. ©2008 Colfax Corporation. All rights reserved.
ALLHEAT®