Instruction Manual for F1300/1600 Mud Pump
33
The fluid end assembly for these triplex pumps consists of three forged cylinder, complete with liner,
valve pot covers and cylinder heads, a suction manifold, and a discharge manifold.
3.9.1 Fluid Cylinder
See Fig.22 for the structure of cylinder and dimension data in table 5.
The three separate fluid cylinders (1) connect metal –to-metal with the power end frame through
retainer studs (2); alignment of the power end and cylinder is realized through power end frame bores
and the “pilot” boss on fluid end. However, to obtain accurate alignment, all nicks or burrs must be
removed from “pilot” boss and frame bore and all dirt and foreign matter cleaned from the mating
surfaces; otherwise it could make up in a “cocked” or misaligned position after the two parts
connecting.
The fit between “pilot” boss and frame bore (Position A) is as follows:
Table 5
Position
Dimension
（
mm
）
Dimension
（
in
）
A 209.55-209.68
8.250-8.255
B 180.97-181.10
7.125-7.130
C 209.60-209.68
8.252-8.255
D 368.27-368.32
14.499-14.501
E 6.35×45°
0.250×45°
F 76.07-76.20
2.995-3.000
G 15.87-16.00
0.625-0.630
H 28.45-28.70
1.120-1.130
J 149.10-149.35
5.870-5.880
K 158.67-158.90
6.247-6.252
L 168.40-168.53
6.630-6.635
M 187.32-187.45
7.375-7.380
N 12.57-12.83
0.495-0.505
P
Taper 1
：
6
2
″
Taper per ft. on dia.
