Blagdon Pump X25 Metallic - Manual (Page 5)

x25fvmdl1sm-rev0411 Page 3
HDF1
&
HDF25 Heavy Duty
Flap Valve
Dimensions are  1/8"
Figures in parenthesis = millimeters
Note:
Unit furnished with sub-
base plate and rubber feet
as standard. For stationary
bolt down use, rubber feet
can be removed.
HDF1: 1" NPT(F) SUCTION AND DISCHARGE • ½" NPT (F) AIR INLET PORT • ¾" NPT (F) AIR EXHAUST PORT (NOT SHOWN)
HDF25: 1" BSP(F) TAPERED SUCTION AND DISCHARGE • ½" NPT (F) AIR INLET PORT • ¾" NPT (F) AIR EXHAUST PORT (NOT SHOWN)
Model HDF1 features
NPT threaded connections.
Model HDF25 features
British Standard Pipe
(BSP) Tapered threaded
connections.
2.57
65
6.89
175
15.67
398
16.73
425
DISCHARGE PORT
1" NPTF (HDF1)
1" BSPF (HDF25)
AIR INLET
1/2" NPTF
14.03
356
5.80
147
2.38
60
10.80
274
.72
18
8.57
218
5.54
141
2.38
60
16.41
417
SUCTION PORT
1" NPTF (HDF1)
1" BSPF (HDF25)
(OPTIONAL 90 PORT ROTATION)
AIR EXHAUST
3/4" NPTM
8.56
217
9.00
229
4X .28 [7] MOUNTING HOLE