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Thermo Scientific Masterflex® L/S & P/S
L/S & P/S Fixed Speed Pumps
     
P/S Fixed Speed Pumps
 
 
 
 
 
 


L/S & P/S Fixed Speed Pumps:

Product Benefits:
• Ideal for very low-flow applications.
• Deliver flow rates from 0.06 to 348 mL/min (0.001 to 5.5 GPH).
• Compact drives feature durable epoxycoated steel housings.
• Operate 24 hours per day—drives feature continuous-duty brushless AC motors.
• On/off switch provides easy, safe control of motor.
• Thermally protected motor automatically shuts down in overheat conditions.

Ordering Information:

Pump & Drive
Catalog #
Drive
Catalog #
Drive
Ref #
Pump Head
Catalog #
Pump Head
Ref #
RPM
Tubing
Options
Includes One
Pump Head
955-1100
7540-01
77200-60
1
P/S 13, 14, 16, 17, 18, 25
(Thin Wall)
 
955-1105
7542-01
77200-60
1
955-1200
7540-06
77200-60
6
955-1205
7542-06
77200-60
6
955-1300
7540-30
77200-60
30
955-1305
7542-30
77200-60
30
955-1400
7540-60
77200-60
60
955-1405
7542-60
77200-60
60
956-1100
7540-01
77200-62
1
P/S 15, 24, 35, 36
(Thick Wall)
 
 
 
 
 
 
 
956-1105
7542-01
77200-62
1
956-1200
7540-06
77200-62
6
956-1205
7542-06
77200-62
6
956-1300
7540-30
77200-62
30
956-1305
7542-30
77200-62
30
956-1400
7540-60
77200-62
60
956-1405
7542-60
77200-62
60
965-1100
7540-01
77250-62
1
P/S 15, 24, 35, 36
(Thick Wall)
 
 
 
 
 
965-1105
7542-01
77250-62
1
965-1200
7540-06
77250-62
6
965-1205
7542-06
77250-62
6
965-1300
7540-30
77250-62
30
965-1305
7542-30
77250-62
30

Tubing Options:

  Flow Rates, mL/min (GPH)*
Motor rpm
Masterflex P/S precision tubing sizes
P/S 13
P/S 14
P/S 16
P/S 25
P/S 17
P/S 18
  Easy-Load® II (thin wall)
1
0.06
(0.001)
0.21
(0.003)
0.8
(0.013)
1.7
(0.027)
2.8
(0.044)
3.8
(0.060)
6
0.36
(0.006)
1.26
(0.020)
4.8
(0.076)
10.2
(0.16)
16.8
(0.27)
22.8
(0.36)
30
1.8
(0.03)
6.3
(0.10)
24
(0.38)
51
(0.81)
84
(1.3)
114
(1.8)
60
3.6
(0.06)
12.6
(0.20)
48
(0.76)
102
(1.6)
168
(2.7)
228
(3.6)
Motor rpm
Masterflex P/S High-Performance Precision Tubing Sizes
P/S 15
P/S 24
P/S 35
P/S 36
  Easy-Load® II (thick wall)
1
1.7
(0.03)
 
2.8
(0.04)
3.8
(0.06)
4.8
(0.08)
6
10.2
(0.16)
 
16.8
(0.27)
22.8
(0.36)
28.8
(0.46)
30
51
(0.81)
 
84
(1.3)
114
(1.8)
144
(2.3)
60
102
(1.6)
168
(2.7)
228
(3.6)
288
(4.6)
  High-Performance (thick wall)
1
1.8
(0.03)
3
(0.05)
4.3
(0.07)
5.8
(0.09)
6
10.8
(0.17)
18
(0.29)
25.8
(0.41)
34.8
(0.55)
30
54
(0.86)
90
(1.4)
129
(2.0)
174
(2.8)

Note: Flow rates were calculated under the following conditions: zero psig at inlet, 0.5 psig at outlet; water temperature
at 22°C (72°F).
* Flow rates listed in parentheses are obtainable only with High-Performance pump head.

Specifications:

Catalog
number
955
-1100
955-
1105
955-
1200
955-
1205
955-
1300
955-
1305
955-
1400
955-
1405
956-
1100
956-
1105
956-
1200
956-
1205
956-
1300
956-
1305
956-
1400
956-
1405
Included
pump head
Easy-Load II
(thin wall)
 
Easy-Load II
(thin wall)
 
Easy-Load II
(thin wall)
 
Easy-Load II
(thin wall)
 
Easy-Load II
(thin wall)
 
Easy-Load II
(thin wall)
 
Easy-Load II
(thin wall)
 
Easy-Load II
(thin wall)
 
Number of heads
accepted
2
 
2
 
2
 
1
 
2
 
2
2
1
 
Motor rpm
(fixed)
1
 
6
30
60
1
6
30
60
Voltage
(50/60 Hz)
115
230
115
230
115
230
115
230
115
230
115
230
115
230
115
230
Current
0.3 A
0.2 A
0.5 A
0.2 A
0.5 A
0.4 A
0.9 A
0.4 A
0.3 A
0.2 A
0.5 A
0.2 A
0.5 A
0.4 A
0.9 A
0.4 A
Fuse rating
0.8 A
0.4 A
0.8 A
0.4 A
0.8 A
0.4 A
0.8 A
0.4 A
0.8 A
0.4 A
0.8 A
0.4 A
0.8 A
0.4 A
0.8 A
0.4
Motor type
AC, shaded pole
Speed regulation
(Repeatability)
±10%
Operating
temperature
0 to 40°C (32 to 104°F)
Storage
temperature
25 to 65°C (–49 to 149°F)
IP rating
IP22
Agency approvals
UL, cUL, CE (230 V units)
Dimensions
(L x W x H)
13.4 cm x 11.8 cm x 15.2 cm (53⁄8" x 45⁄8" x 6")
 
Shipping weight
4.0 kg (9.0 lb)

Specifications:

Catalog
number
965-1100
965-1105
965-1200
965-1205
965-1300
965-1305
Included
pump head
High-Performance
(thick wall)
Number of heads
accepted
1
 
6
 
30
 
Motor rpm
(fixed)
1
 
1
 
1
 
Voltage
(50/60 Hz)
115
230
115
230
115
230
Current
0.3 A
0.2 A
0.5 A
0.2 A
0.5 A
0.4 A
Fuse rating
0.8 A
0.4 A
0.8 A
0.4 A
0.8 A
0.4 A
Motor type
AC, shaded pole
Speed regulation
(Repeatability)
±10% (±10%)
Operating
temperature
0 to 40°C (32 to 104°F)
Storage
temperature
–45 to 65°C (–49 to 149°F)
IP rating
IP22
Agency approvals
UL, cUL, CE (230 V units)
Dimensions
(L x W x H)
13.4 cm x 11.8 cm x 15.2 cm (53⁄8" x 45⁄8" x 6")
Shipping weight
4.5 kg (10.0 lb)

 
 
 

 

 
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