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Axial RPP / RPG
 

 

 

Axial Flow Elbow Propeller

Pump - RPP / RPG

Discharge
DN 250 – 1300mm (10” to 51”)

Capacity
5000l/sec – 79’200 Usgpm

Head
up to 10m (33ft) special design 30m (98ft)

Applications
Suspensions, liquids with crystals or long fibres.

 

 

Axial Flow Elbow Propeller Pump - hydraulic design
 
Advantages
 
 


* Cast or welded elbow.
* 4-vane impeller, dynamically balanced.
* Long thick profile with low specific charge.
* Propeller profile suitable for long fibres, on request.
* Shaft protection pipe.
* Gentle transport without damage to solids.
* High efficiency.
* Abrasion resistant.
* Low NPSHR.





 

Axial Elbow Propeller Pump -  pump Constructions
 
Construction
 



 

Arrangements - Base Mounted
 



 

Arrangements - Suspended
 

 
 

Shaft Sealing

 

Stuffing box with:

Single external flush.

Double flush external and pumped medium (hot liquids).

Unique gland packing replacement made simple with stationary seal option – no need to drain the system or isolate the pump.


Mechanical seals:

Single seals.

Double mechanical seal.

Cartridge seals.

Heavy duty slurry seals

Seal box dimensions allow for multi-choice of seal designs from many manufacturers

 

 

The Axial Flow Elbow Propeller Pump is available in the following materials:

 
CASING CAST (RPG)
EN-GJL-250
(GG 25)
ASTM A 48 - 40B DIN EN 1561 cast iron
Hardness: 180-250 (HB)
EN-GJS-400-15
(GGG 40)
 
ASTM A 536
(60-40-18)
DIN EN 1563 nodular cast iron
Hardness: 120-180 (HB)
GGG Ni Cr 30 3
(0.7661)
 
ASTM A439
(Type D-2B)
DIN EN 1563 nodular cast iron
Hardness: 120-180 (HB)
1.4409
 
No direct US equivalent DIN EN 10283 Austenitic stainless steel,
GX2CrNiMo19-11-2
1.4588
 
No direct US equivalent DIN EN 10283 Fully Austenitic stainless steel
GX2NiCrMoCuN 25-20-6
CASING FABRICATED (RPP)
1.4301 AISI/SAE 304 DIN EN 10088 Austenitic stainless steel
(X5 CrNi 18 9)
1.4404
 
AISI/SAE 316L DIN EN 10088 Austenitic stainless steel
(X2 CrNiMo 18 10)
1.4529
 
ASTM N0 8926 DIN EN 10088 Austenitic stainless steel

 
1.4409
 
No direct US equivalent DIN EN 10283 Austenitic stainless steel,
GX2CrNiMo19-11-2
Monell 400 No direct US equivalent DIN 17744 nickel-copper alloy
(2.4360 / 2.4361)

 
On request:

All metals, such as carbon steel, stainless steel, duplex and super duplex stainless steel, hastelloy® B and C, inconel alloy, nickel, titanium, zirconium, etc. American and Asian material equivalents are also available on request.

 


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Copyright © 2010 ROTEQ Engineering Pte Ltd
Last modified: 2012-12-03