Models
312792F 3
Models
Check your displacement pump’s identification marking for the 6-digit part
number. Use the following matrix to define the construction of your displace-
ment pump. For example, displacement pump model LW025A represents a
wet-cup style stainless steel displacement pump, 25 cc, with a Chromex
coated rod and 3 UHMWPE, 2 PTFE packings.
To order replacement parts, see Parts section starting on page 9. The digits in
the matrix do not correspond to the reference numbers in the Parts drawings
and lists.
* Cycle refers to combination of one upstroke and one downstroke.
ti12415a
LW 025 A
First Digit
Second Digit
(Description)
Third, Fourth, and Fifth
Digits
(Displacement Pump
Volume Per Cycle* in cc)
Sixth Digit
(Packings; Displacement Rod Coating)
L
(Lower)
W
Wet-cup style,
stainless steel
025 A
3 UHMWPE, 2 PTFE; Chromex
™
050
075
100
125
150
Model, Series
Maximum Working
Pressure
psi (MPa, bar) Fluid Inlet Fluid Outlet
LW025A, Series A
3000 (20.7, 207) 1/2 in. npt 3/8 in. npt
LW050A, Series A
4500 (31.0, 310) 3/4 in. npt 3/8 in. npt
LW075A, Series A
4800 (33.1, 331) 3/4 in. npt 3/8 in. npt
LW100A, Series A
3600 (24.8, 248) 3/4 in. npt 3/8 in. npt
LW125A, Series A
2900 (20.0, 200) 1 in. npt 1/2 in. npt
LW150A, Series A
2400 (16.5, 165) 1 in. npt 3/4 in. npt
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