Roto-Jet® RO-FT API 610 - Process Equipment Company

Excellent
Engineering
Solutions
Roto-Jet® RO-FT API 610
Pumps for the Petroleum, Petrochemical and Natural Gas Industries
Pump Type: BB6
Roto-Jet® Pump Design and Principles of Operation
The Roto-Jet® pump has earned a global reputation for reliability and robustness by meeting the demanding requirements
of API 610 standards. The operating characteristics of the Roto-Jet® pump are simple and similar to a conventional
centrifugal pump. Energy is added to the fluid via the rotor, and the stationary pitot tube converts the fluid velocity
energy into static pressure.
Benefits:
• API 610 11th Edition compliant
• Standard API 682 cartridge seals
• No external lube system required
• No wear rings or close running clearances
• Low NPSH3 without the use of an inducer
• Robust design is insensitive to process upsets
• Pulsation free flow over the entire head-flow curve
• Integral gearbox is isolated from process seal leakage
• Reduced life cycle cost by optimizing hydraulic efficiency
• Process seals exposed only to suction pressure for maximum seal life
• Between bearings arrangement minimizes shaft deflection at the seals
• Bearing L10 life exceeds API 610 requirements using rolling element bearings
• Patented rotor eliminates radial and axial thrust as a function of flow rate and suction pressure
• High heads achieved in a single stage at low operating speeds compared to other low-flow, high-head pumps
These unique attributes make the Roto-Jet® RO-FT pump an excellent choice for severe low-flow, high-head process
applications to increase mean time between failure objectives.
HEAD
METERS
FEET
Based on 400 HP (300 kW) or Specific Gravity = .50
1600
5000
D-266
1200
4000
D-375
D-600
3000
800
D-484
2000
400
1000
0
0
0
0
100
50
10
20
200
150
40
30
300
250
50
60
FLOW
Roto-Jet® RO-FT Pump Performance Capabilities
Max Flow
450 gpm
102 m³/hr
Max Head
5000 ft
1500 m
Max Suction Pressure
300 psi
21 bar
Max Suction Temperature
250º F
120º C
Max Suction Temperature w/Flush
550º F
Max Speed
Max Power
290º C
6000 rpm
400 HP
300 kW
70
350
80
400
90
450
100
GPM
M³/HR
Roto-Jet® RO-FT Pump
Rotor
Pitot Tube
Shaft
Assembly
Ball
Bearing
API 682
Cartridge Seal
API 682
Cartridge Seal
Ball
Bearing
Suction
(3 in)
Discharge
(2 in)
Input Shaft
Back to Back
Ball Bearing
Oil Reservoir
Roller
Bearing
Integral Gearbox
Gearbox Casing
Roto-Jet® Pitot Tube Pump
The Roto-Jet® pitot tube pump has been specifically designed and manufactured to achieve
a broad operating range without creating damaging hydraulic forces in the pump. The pitot
tube is stationary in the 12 o’clock position to facilitate venting of the rotor during start-up.
The efficient conversion of velocity energy into static pressure is critical to maximizing
any centrifugal pump’s efficiency. After years of research and development in conjunction
with state-of-the art CFD tools, Weir Specialty Pumps has created a highly advanced pitot
tube geometry designed to offer superior performance for low-flow, high-head pumping
services.
Materials of Construction
C6
A8
D1
Rotor
Carbon Steel (A216 WCB)
S5
S6
S8
12% CR (CA6NM)
316 AUS (A351 CF3M)
Duplex (A351 CD4MCu)
Flanges
Carbon Steel (A216 WCB)
12% CR (CA6NM)
316 AUS (A351 CF3M)
Duplex (A351 CD4MCu)
Shaft Assembly
Carbon Steel (A216 WCB)
12% CR (CA6NM)
316 AUS (A351 CF3M)
Duplex (A351 CD4MCu)
Input Shaft
4140 Carbon Steel (A193)
Pitot Tube
17-4-PH* Stainless Steel (A564) or Inconel* 718
Gearbox Casing
Carbon Steel (A216 WCB)
Applications
Options
•
•
•
•
•
•
•
•
•
Mechanical seals: single, double/tandem or gas
API seal flush plans
Lubrication: splash oil, purge-oil mist, forced
Noise abatement systems to achieve 80 – 85 dBA
Baseplates per API 610
Vibration monitoring per API 670
Couplings per API 671
ASME B16.5 and DIN flanges
Complete unit and auxiliary testing
•
•
•
•
•
•
•
•
Caustics processing •
Amine treating
•
Reflux streams
•
Transfer services
•
Boiler feed
•
Naphtha
•
Offshore
•
Reactor feed
Condensate and well injection
Boiler feed water
Foul water
Diesel, gasoline, kerosene
Sour water
Depropanizer
Deethanizer
The Roto-Jet® high pressure pitot tube pump offers a complete package specifically
designed and tested to meet API 610 11th edition standards.
89 in
(2261 mm)
62 in
(1575 mm)
53 in
(1346 mm)
20.6 in
(523 mm)
ISO 9001 | ISO 14000 | OSHAs 18000
Weir Specialty Pumps
440 West 800 South
P.O. Box 209 (84110-0209)
Salt Lake City, UT 84101
USA
Tel: 1 801 359 8731
Fax: 1 801 530 7828
email: info@weirsp.com
www.weirsp.com
Excellent
Engineering
Solutions
Bulletin RJ RO-FT API-610
Copyright © 2014, Envirotech PumpSystems, Inc.. All rights reserved. WEIR and the WEIR logo are trademarks and/or registered trademarks of Weir Engineering Services Ltd.; ROTO-JET is a trademark and/
or registered trademark of Envirotech PumpSystems, Inc. *17-4-PH and INCONEL are not trademarks belonging to any company forming part of The Weir Group PLC.