FLOWSERVE CORPORATION GA / GR / Gearex Pumps. Rotary Gear Pumps Product Training Program

Transcription

1 FLOWSERVE CORPORATION GA / GR / Gearex Pumps Rotary Gear Pumps Product Training Program April 2017

2 The Major Pump Groups 1,000,000 Viscosity Limit (SSU) 100,000 10,000 1, Rotary Recip'g Centrifugal

3 The Major Pump Groups All Pumps All Pumps Centrifugal Positive Displacement Reciprocating Rotary

4 Gear Pump Types Rotary Pumps Gear Pumps External gear type Internal, "gear-within-a-gear" type

5 Other PD Pump Types Sliding Vane Internal Gear Screw Lobe

6 How an External Gear Pump Works 1. As the gears come out of mesh, they create expanding volume on the inlet side of the pump. Liquid flows into the cavity and is trapped by the gear teeth as they rotate. 2. Liquid travels around the interior of the casing in the pockets between the teeth and the casing (referred to as locks ). It does not pass between the gears. 3. The meshing of the gears forces liquid through the outlet port under pressure. The displacement is directly proportional with speed.

7 Basic Features Gear pumps use close running clearances to seal suction from discharge pressure and provide increasing volumetric efficiency with increasing viscosity Flow constant over varying pressures Flow directly proportional to speed Power directly proportional to speed Efficiency increases with velocity

8 Head and Flow Curves - Theory Head (feet) Capacity (GPM)

9 PD vs Centrifugal Pumps Actual Curves PD Pump Centrifugal Pump

10 GA Lower Flow/Head Flowserve Offering Engineered (API 676) 2 nd Ed. Compliant GR Higher Flow/Head

11 Pumping Gear Types Spur Helical Herringbone Quietest operation Gradual mesh Hydraulically balance

12 GAX Series 7 sizes Up to 120 GPM Up to 25,000 SSU (5,500 CP) Up to 1,800 RPM

13 GAX Coverage 120 GPM

14 GAX Series

15 GAX Features Sleeve Bearings Mechanical Seal Safety Relief Valve Inboard Bearings (for belt drives)

16 GAX Mounting Options GAF GAS GAC

17 GAX Ordering Code 1 G A S M 0 D 0 Basic Size Construction Code 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6 or or Standard construction See Section for GAS & GAF C frame (GAC only) Product Designation // 145TC frame (GAC only) G -- GAX Series gear pump // 184TC frame (GAC only) // 215TC frame (GAC only) Materials of of Construction A -- Cast iron Bearing Material D -- Carbon Mounting Configuration B -- Bronze (150 psi maximum) S -- Foot mounted F -- Flange mounted Relief Valve Configuration C -- Close coupled (sizes 1 through 4) 4) 0 -- None provided 1 -- Provided with psi range. For Sealing Configuration higher ranges, see Section P -- Packing (not with GAC) pages 4, 4, 8, 8, or or for optional MMN's M -- Mechanical seal (Buna-N) I I -- Seal w/ w/ inboard bearing (not with GAC)

18 GR Series 16 sizes in CI or CS Up to 1,100 GPM Up to 500 PSI Up to 1 Million SSU (200,000 CP) Up to 1,800 RPM and 650 F

19 GR Coverage 1000 GPM

20 GR Features Inboard Bearing (Belt Drive) Jacketed Body (Hi-Temp) Dual Stuffing Box (Hi Suction Pressure) Insurok Wear Plate (<400SSU/75cp)

21 GR Features Sleeve Bearings Bronze Dirty Services >100SSU <350 F Babbitt Impregnated Carbon <100SSU <350 F Antimony Impregnated Carbon Dirty Services: >350 F All Services: >500 F

22 GR Bearing Considerations Roller Bearings: Standard Configurations Clean Viscous Liquid up to 500 F Bronze Sleeve Bearings Dirty services above 100SSU/below 350 F Babbitt Impregnated Carbon Clean services below 100SSU and below 350 F Antimony Impregnated Carbon Dirty services above 350 F All services above 500 F

23 GR Sealing Consideration Packed Box: Standard Configuration Limited to 300 F on standard packing Standard Mechanical Seal: Type 1/51 BCRKR: Limited to 240 F / 5,000SSU max VCRKR: Limited to 300 F Inboard Bearing Configuration Limited to 240 F max All Applications above 300 F Refer to Factor / FSD

24 GR Pressure Consideration Cast Iron GR 10 psig suction below 75 SSU 50 psig suction above 75 SSU Cast Steel GR 50 psi suction above 200 SSU NOT recommended below 200 SSU Insurok Wear Plates 50 psig suction / 250 F limit Double Stuffing Box Configuration 100 psi suction limit

25 GAX/GR Selling Features Higher Speed Capability 1800 RPM at lower viscosities and smaller sizes Reduced need for gearboxes, couplings, and guards Higher system efficiency without gearbox

26 GAX/GR Selling Features Back Pull-Out Design Quick access Undistributed system for inspections Ease of maintenance

27 GAX/GR Concerns Applications to Carefully Apply: Solidification: steam jacketing is a must Low NPSHA: reduce speed to gain NPSHR High Temperatures: review bearings/seals Applications to Avoid: Low viscosity/lubricity: <30SSU Vertical Lift Applications: not self-primer Solids handling Shear sensitive liquids Corrosive liquids

28 Market $200M+ market in North America annually Overwhelmingly distributor-driven GI Applications Fluid circulation Supply to burner and heater sets Slop oil and waster transfer Oil Applications Asphalt transfer Heavy oil/grease transfer Barge, train, tank, truck loading OEM Applications Lube and seal oil supply Filtering and metering systems Proprietary equipment systems Chemical Applications Highly viscous polymers Cellulose acetate Feedstocks

29 GAX/GR Selection Process Information Required: Viscosity (max and min) Flow rate desired Differential pressure desired (or max acceptable by system) NPSH available Steps: 1. Gear Pumps not supported by Affinity. 2. GAX and GR Selection Tools available on PumpNet (Distributor Portal)

30 GAX/GR Selection Tool

31 Gearex Pumps Flowserve to 800 gpm Pressure up to 350 psi Temps up to 850 deg F (450 deg C) Viscosity 32 to 1 M SSU Max Speed 1800rpm

32 Pump Nomenclature B, C, D, E Each model has several rotor width options Max Displacement Gearex Pumps B rpm (Comparable with 2GR) C rpm (Comparable with 2.5GR) D rpm (Between 3GR & 4GR) E rpm (Between 5GR & 6 GR)

33 Gearex Pumps Clean Product Lubrication Product Continuous Flow of Product No Solids Non-Corrosive Not so Clean Product Non Lubrication Product Intermittent Flow of Product Solids Corrosive

34 Gearex Pumps Markets Oil, Chemical, & Petrochemical Refining Marine Vessels & Storage Terminals Power Generation Non-sanitary Food Industry OEM Application General Fluid Transfer Applications.

35 QUESTIONS? COMMENTS?