Description

Metachem Corporation also manufactures high precision, positive displacement, reciprocating Plunger pump with Automatic Stroke Controllers. The Mechanical operation of these pumps is identical to Packed Plunger Pumps but the only difference is that the stroke adjustment of the pump is done automatically by an Electrical Actuator which is mounted on the top of the pump. The Electrical Actuator is connected to the stroke controller which shows the percentage stroke length of the pump. The Actuator works with an Input Signal of 4-20mA.

Working Principle
An Electrical Actuator is a device, which converts electrical energy derived from motor to corresponding mechanical movement which is imparted on final control element. Each Electrical Actuator is provided with Hand wheel with clutch for manual operation in case of power failure. A continuous local mechanical position indicator is provided which shows real time opening/closing of Actuator irrespective of whether Actuator is in manual or electrical mode. These Actuators work with an Input signal of 4-20mA. Normally 4mA output signal corresponds to fully close i.e. 0% stroke length of pump condition and 20mA corresponds to fully open condition i.e.100% stroke length of pump. A feedback Potentiometer fitted inside the Actuator converts the mechanical movement of Actuator to corresponding resistive output. A two wire Position Transmitter PPT 200 converts resistive output of Actuator mounted feedback potentiometer to corresponding 4mA to 20mA current output. A positioner unit which also acts as a comparator, compares input signal of 4mA to 20mA based on process parameters, with feedback signal of (4 - 20)mA generated from Actuator mounted PPT 200 and generates open/close relay signal through ICís which is routed through RC network for forward and reverse movement of motor until the desired position is achieved. The Actuator which is mounted on the pump with its change in linear motion due to the input signal given, in turn changes the stroke length of the pump due to which we get the desired flow.

Material of Construction of Wetted Parts
1. AlSl304SS / AlSl316SS / ALLOY2O / HASTELLOY B, C.

Salient Feature
Pump performance in accordance to API675.
Robust construction
Low Maintainence & accuracy for Longer period

GENERAL SPECIFICATION
Max. Flow rate: Up to 7000 L/Hr.
Max. Pressure: Upto 400 Kg/cm2

Selection Chart


PUMP
MODEL
MAX. PRESSURE
in Kg / cm 2
CAPACITY in LPH
Gear - 100 spm
CAPACITY in LPH
Gear - 200 spm
MC-1 RL 200 1.95 3.9
125 3 6
85 4.4 8.8
65 6 12
50 7.8 15.6
40 9.9 19.8
35 12.2 24.4
25 14.8 29.6
22 17.6 35.2
15 27.5 55
10 37.5 75
8 49 98
6 62 124






PUMP
MODEL
MAX. PRESSURE
in Kg / cm 2
CAPACITY in LPH
Gear - 100 spm
CAPACITY in LPH
Gear - 200 spm
MC-2 RL 270 8.5 17.5
200 11.6 24
150 15.2 31
120 19 39
97 24 48.5
67 34 70
43 53 109
31 73 148.5
24 95 194
19 120 246
15 148 303
13 173 354
11 213 437
10 228 466
9 250 512






PUMP
MODEL
MAX. PRESSURE
in Kg / cm 2
CAPACITY in LPH
Gear - 100 spm
CAPACITY in LPH
Gear - 200 spm
MC-3 RL 320 27.8 55.6
300 36.4 66.3
235 46 84
190 57 103.6
130 82 149
85 128 233
62 174.4 317
48 228 414
37 288.4 524
30 356 647
26 415.2 755
20 547 995
15 698 1269
12 911 1657
10 1153 2098
8 1424 2590
7 1570 2855.5
6 1723 3133.9
5 2050 3728






PUMP
MODEL
MAX. PRESSURE
in Kg / cm 2
CAPACITY in LPH
Gear - 100 spm
CAPACITY in LPH
Gear - 200 spm
MC-4 RL 375 79 158
303 97.6 195.2
210 140.5 281
135 220 440
100 299 598
75 390 780.8
60 495 990
48 610 1220
41 711.5 1423
32 938 1876
24 1196 2392
19 1562 3123
15 1976.4 3952
12 2440 4880
11 2690 5380
10 2952 5904
8 3516 7032