T40 Triplex Pump

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The Weatherford Model T40 is a single-acting triplex plunger pump rated at 41 hp in continuous-duty service and up to 66 hp in intermittent duty. 

This versatile pump is offered with a variety of material and design options that enable its use in a wide range of applications.

Standard Equipment

  • Forged duplex stainless steel or forged carbon steel fluid ends
  • Duplex stainless steel stuffing boxes
  • Disc valve
  • Tungsten carbide coated plungers over stainless steel base or solid ceramic plungers
  • Double extended crankshaft
  • Multiple plunger packing arrangements offered

Optional Accessories

  • Packing lubricators
  • Customized plunger packing arrangements
  • Complete pump packages

Specifications

Rated (HP, kW)
40
29.8
Stroke length (in., mm)
2.95
74.9
Maximum discharge pressure (PSI, Bar)
     T40H
4,480
309
     T40M
3,110
214
     T40L
2,290
158
Rated rod load (lb, kg)
5,500
2,495
Internal gear ratio
3.15:1
Intermittent duty speed, pinion RPM
1,420
Maximum continuous duty speed, pinion RPM
950
Minimum speed, pinion RPM
240
Crankshaft dimensions (in., mm)
     Diameter
2.00
50.8
     Length (both sides)
4.25
108.0
Keyway, width × depth (in., mm)
.500 × .250
12.7 × 6.4
Oil capacity (gal, l)
5.3
24.1
Weight (lb, kg); estimates only
945
428.6
Mechanical efficiency
85%

 

 

Pump Model
Discharge Connection Sizes (in., mm)
Suction Connection Sizes (in., mm)
T40H
1.0 (25.4) NPT
2.0 (50.8) NPT
T40M
1.0 (25.4) NPT
2.0 (50.8) NPT
T40L
1.5 (38.1) NPT
3.0 (76.2) NPT

 

Standard

Model (standard)
Plunger Diameter (in.)
Gallons Per Revolution
Maximum Pressure PSI
240 RPM
500 RPM
650 RPM
850 RPM
950 RPM
Intermittent Duty 1,420 RPM
GPM
BPD
GPM
BPD
GPM
BPD
GPM
BPD
GPM
BPD
GPM
BPD
T40H
1.000
0.0096
4,480
2.3
79
4.8
164
6.2
213
8.1
279
9.1
311
13.6
465
1.250
0.0149
4,480
3.6
123
7.5
256
9.7
333
12.7
435
14.2
487
21.2
727
T40M
1.500
0.0215
3,110
5.2
177
10.8
369
14.0
479
18.3
627
20.4
701
30.5
1,047
T40L
1.750
0.0293
2,290
7.0
241
14.6
502
19.0
653
24.9
853
27.8
954
41.6
1,426
2.000
0.0382
1,750
9.2
315
19.1
656
24.9
852
32.5
1,115
36.3
1,246
54.3
1,862
2.250
0.0484
1,380
11.6
398
24.2
830
31.5
1,079
41.1
1,411
46.0
1,577
68.7
2,357
2.500
0.0598
1,120
14.3
492
29.9
1,024
38.8
1,332
50.8
1,742
56.8
1,946
84.9
2,909


Metric

Model (metric)
Plunger Diameter (in.)
Liters Per Revolution
Maximum Pressure BAR
240 RPM
500 RPM
650 RPM
850 RPM
950 RPM
Intermittent Duty 1,420 RPM
LPM
M3/hr
LPM
M3/hr
LPM
M3/hr
LPM
M3/hr
LPM
M3/hr
LPM
M3/hr
T40H
1.000
0.0362
309
8.7
0.5
18.1
1.1
23.5
1.4
30.8
1.8
34.4
2.1
51.4
3.1
1.250
0.0565
309
13.6
0.8
28.3
1.7
36.8
2.2
48.1
2.9
53.7
3.2
80.3
4.8
T40M
1.500
0.0814
214
19.5
1.2
40.7
2.4
52.9
3.2
69.2
4.2
77.4
4.6
115.6
6.9
T40L
1.750
0.1108
158
26.6
1.6
55.4
3.3
72.0
4.3
94.2
5.7
105.3
6.3
157.4
9.4
2.000
0.1448
121
34.7
2.1
72.4
4.3
94.1
5.6
123.0
7.4
137.5
8.3
205.6
12.3
2.250
0.1832
95
44.0
2.6
91.6
5.5
119.1
7.1
155.7
9.3
174.0
10.4
260.2
15.6
2.500
0.2262
77
54.3
3.3
113.1
6.8
147.0
8.8
192.3
11.5
214.9
12.9
321.2
19.3

General Notes

  1. Capacities shown are based on 100 percent volumetric efficiency. Actual capacities are lower, based on discharge pressure and fluid compressibility.
  2. API-674 and NACE-compliant designs are available; consult Weatherford for details and exceptions to these standards.
  3. For operation below 90 RPM, an auxiliary lubrication system is required.
  4. Standard plunger sizes are shown, however other sizes are available upon request.