solutions roto-jet® ro-ft api 610 - process api.pdf · roto-jet® ro-ft pump roto-jet® pitot tube...
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Roto-Jet® RO-FT API 610Pumps for the Petroleum, Petrochemical and Natural Gas IndustriesPump Type: BB6
Excellent Engineering Solutions
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.
Roto-Jet® Pump Design and Principles of Operation
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 290º C
Max Speed 6000 rpm
Max Power 400 HP 300 kW
Roto-Jet® RO-FT Pump Performance Capabilities
D-484
HEAD
FLOW
0 50 100 150 200 250 300 350 400 450 GPM
0 10 20 30 40 50 60 70 80 90 100 M³/HR
5000
4000
3000
2000
1000
0
1600
1200
800
400
0
METERS FEET
D-266
D-600D-375
Based on 400 HP (300 kW) or Specific Gravity = .50
Roto-Jet® RO-FT Pump
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.
S5 S6 S8 C6 A8 D1
Rotor Carbon Steel (A216 WCB) 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)
Materials of Construction
Input Shaft
Discharge (2 in)
API 682 Cartridge Seal
Pitot TubeRotor API 682
Cartridge Seal
Suction(3 in)
Oil Reservoir
Gearbox CasingIntegral Gearbox
Back to Back Ball Bearing
BallBearing
RollerBearing
Shaft Assembly Ball
Bearing
Weir Specialty Pumps
Bulletin RJ RO-FT API-610
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: [email protected] www.weirsp.com
Excellent Engineering Solutions
ISO 9001 | ISO 14000 | OSHAs 18000
• 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
Options• Caustics processing • Amine treating• Reflux streams• Transfer services• Boiler feed• Naphtha• Offshore• Reactor feed
Applications
The Roto-Jet® high pressure pitot tube pump offers a complete package specifically designed and tested to meet API 610 11th edition standards.
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.
• Condensate and well injection• Boiler feed water• Foul water• Diesel, gasoline, kerosene• Sour water• Depropanizer• Deethanizer
89 in(2261 mm)
62 in(1575 mm)
53 in(1346 mm)
20.6 in (523 mm)