L266
Positive Displacement Rotary Lobe Pumps
LobePro, Inc. ▪ 2610 Sidney Lanier Drive ▪ Brunswick, Georgia 31525 ▪ 912-466-0304 ▪ 1-888-997-7867 ▪ www.LobePro.com© Copyright by LobePro, Inc. 2020. Specifications subject to change without notice
Section 40-504 September 2020
SPECIFICATIONS US MetricRated Capacity: 0-1,330 gpm 0-302 m³/hDisplacement (per 100 revolutions): 266 gal (US) 1,003 L Maximum Continuous Pressure: 75 psi 5.2 barStarting Torque: 3,857 in lbf 436 N mRated Speed: 0-500 RPM 0-500 RPMShaft Diameter: 2.4" 60 mmFlange Connection Class: ANSI 16.5-150# DN – PN 16 Flange Connection Size: ANSI 8" DN 200 Weight: 769 lbs 346 kgSolids Handling Spherical Compressible 3" 76 mm Spherical Hard* 1/8" 3 mm* Larger hard solids will pass through but may cause damage.
MODEL > SL266 CL266 DL266 Service Sludge, Mud and Slurries* Chemical/Corrosive Oil, Gas & AbrasivesWETTED PARTSRotary Lobes Elastomer NBR Opt. HNBR, FKM, EPDM or Eng. Rec. FKM or HNBR Opt. NBR, EPDM or Eng. Rec. FKM or HNBR Opt. NBR, EPDM or Eng. Rec. Lobe Profile Helix Helix Helix Number of lobe wings 4 4 4 Core Carbon Steel Carbon Steel Carbon SteelSealing Elastomers O-rings FKM FKM or Engineer Recommendation FKM or Engineer Recommendation Lip seals FKM or Engineer Recommendation FKM or Engineer Recommendation FKM or Engineer RecommendationMechanical Seals Mechanical Seal Duronit Silicon Carbide Tungsten Carbide Opt. Tungsten Carbide, Silicon Carbide, or Eng. Rec. Opt. Tungsten Carbide or Engineer Rec. Opt. Silicon Carbide or Engineer Rec. Seal Holders Carbon Steel with Corrosion resistant coating Stainless Steel Type 316 Duplex Stainless Steel Wear Plates AR500 Steel (Brinell 500) Duplex Stainless Steel Duplex Stainless Steel Housing Segments ASTM A48 Grey Iron rust primed Duplex Stainless Steel Duplex Stainless Steel or Engineer Rec. Flange Ring ASTM A36 Carbon Steel Stainless Steel Type 316L Duplex Stainless Steel Bolts Carbon Steel ISO 898-I Stainless Steel A2-A4 Duplex Stainless Steel Pressure Disc Stainless Steel Type 316L Stainless Steel Type 316L Duplex Stainless Steel
LIMITED EXPOSURE PARTSQuench /Seal Cooling Chamber ASTM A48 Grey Iron rust primed ASTM A48 Grey Iron ASTM A48 Grey Iron with PTFE / Ceramic Teflon etched on face with PTFE / Ceramic Teflon etched on facePump Cover ASTM A48 Grey Iron rust primed CIT coated Grey Iron Opt. DS Stainless Steel CIT coated Grey Iron Opt. Duplex Stainless Steel NON-WETTED PARTSGears GMA Class 9 AISI 1045 steel GMA Class 9 AISI 1045 steel GMA Class 9 AISI 1045 steel Gear Housing ASTM A48 Grey Iron rust primed ASTM A48 Grey Iron rust primed ASTM A48 Grey Iron rust primed Shaft AISI 4140 Alloy Steel AISI 4140 Alloy Steel AISI 4140 Alloy Steel PAINTING REQUIREMENTSStandard Painting SSPC/SP6 Sandblast Paint SSPC/SP6 Sandblast Paint SSPC/SP6 Sandblast Paint LobePro Blue LobePro Silver LobePro SilverNOTE: Listed above are standard pump assemblies; lobe styles and materials subject to recommendation by LobePro Engineering. A wide range of optional materials are available for each model. Consult LobePro for further information. *Consult Factory for application temperature above 80°C (175°F).
1700
1600
1500
1400
1300
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
386
364
341
318
295
273
250
227
205
182
159
136
114
91
68
45
23
00 50 100 150 200 250 300 350 400 450 500 550 600 650
Performance Curve
Capa
city
, gpm
Capa
city
, m3/
hr
Pump Speed, rpm
100
90
80
70
60
50
40
30
20
10
0
74.57
67.11
59.66
52.2
44.74
37.28
29.83
22.37
14.91
7.46
00 50 100 150 200 250 300 350 400 450 500 550 600 650
Horsepower Requirements
Pum
p Sh
aft I
nput
Hor
sepo
wer
, hp
Pum
p Sh
aft I
nput
Kilo
wat
ts, k
w
Pump Speed, rpm
2.66 gpr
25 psi/1.7 bar
50 psi/3.4 bar
75 psi/5.2 bar
25 psi/1.7 bar
50 psi/3.4 bar
75 psi/5.2 bar
Theoretical
L266 CURVES
Section 40-504 September 2020
LobePro, Inc. ▪ 2610 Sidney Lanier Drive ▪ Brunswick, Georgia 31525 ▪ 912-466-0304 ▪ 1-888-997-7867 ▪ www.LobePro.com© Copyright by LobePro, Inc. 2020. Specifications subject to change without notice
Performance Curve - NBR Lobes*Based on 70°F (21°C) fresh water (1 cp) at Sea Level.
Output will increase as viscosity of the fluid increases from 1.
*Note: Output from lobes coated with elastomers other than NBR maybe lower. Contact Engineering for further information.
Horsepower Requirements
