RL3NB-350A
Triplex
Single-Acting
Back
and
Forth
Piston
Pumps
RL3NB-350
Triplex
Single-Acting
Back
and
Forth
Piston
Pumps
The
design
characteristic
of
3NB-350
Triplex
Single-Acting
Piston
Pump
is
the
optimum
parameter,appropriately
increasing
stroke,reasonable
lower
stroke
number
to
improve
the
functions
of
pump
suction.
And
,it
extends
the
life
of
consumable
parts.
The
pumps
are
widely
used
for
oil
field
and
other
industrial
and
mine
enterprise-drilling
well,repairing
welll,transporting
liquid
carrier,and
injecting
polymer
into
oil
layer
to
requirement
of
tertiary
oil
recovery.It
is
suit
fo
Rig15.
The
sreial
products
are
strictly
produced
as
per
SY5138
standard
of
CNPC.
Technical
Specification
Model
Type
Input Power
Rated Pump Speed
Stroke length
Ratio Gears
Matching Power
3NB-350
Triplex Single-Acting
257Kw
120(stroke/Min)
180mm
4.483
6190ZC-1(diesel)12V 13.5JZ(diesel)
Suction Manifold of Diameter
Discharge Manifold of Diameter
Drive Wheel Rated Speed R/min.
Continue Speed R/Min.
Weight(kg)
Overall Size mm3
203mm
76mm
582.8
540
8058
3100×2080×2015
Pump Speed （Stroke/Min)
Cylinder Diameter(mm)
90
100
110
120
130
140
150
160
Displacement(L/S)
130
7.44
9.18
11.1
13.23
15.52
18.01
20.67
23.52
120
6.87
8.48
10.26
12.21
14.33
16.62
19.08
21.71
110
6.29
7.77
9.4
11.19
13.14
15.23
17.49
19.90
100
5.72
7.06
8.55
10.17
11.94
13.84
15.90
18.09
Pump Pressure (MPa)
31
25
20.8
17.5
14.9
12.8
11.2
9.8
90% Mechanical efficiency as 90% 容积效率按100% Capacity efficiency as 100%
