38 Frame block-style plunger pump

3821HS

Specification

Part number	Description	Per pump
31952	Valve kit, EPDM (.0220)	2
31955	Valve kit, FPM (.0110)	2
34017	Valve kit, NBR (STD)	2

Part number	Description	Per pump
32273	Crankcase Oil Seal Removal and Installation Kit	1
33269	Seal kit, FPM (.0110)	1
701699	Seal kit, NBR (STD)	1
701714	Seal kit, EPDM (.0220)	1

Positions are the balloon numbers on Cat Pumps' exploded view.

Pos	Part number	Description	Qty
5	96049	96049	8
8	134604	134604	2
9	815279	815279	4
10	12398	12398	2
11	13296	13296	2
12	855049	855049	0
15	29326	29326	2
20	126725	126725	3
21	126749	126749	3
22	126593	126593	6
23	122045	122045	6
25	29325	29325	1
31	828710	828710	1
32	43211	43211	1
33	14177	14177	1
34	126743	126743	1
37	92241	92241	1
38	44428	44428	1
40	125753	125753	8
48	25625	25625	1
49	23170	23170	1
50	45936	45936	1
51	16612	16612	1
53	134784	134784	1
54	27488	27488	2
56	27790	27790	1
59	92538	92538	2
64	43864	43864	3
65	49166	49166	3
69	126587	126587	3
70	100488	100488	3
75	43865	43865	3
88	45676	45676	3
90	43957	43957	3
95	89778	89778	3
96	20189	20189	3
97	11345	11345	3
98	44085	44085	3
99	44084	44084	3
100	814279	814279	3
101	44106	44106	3
104	43875	43875	3
105	45562	45562	3
106	44098	44098	3
107	44101	44101	3
110	701286	-	1
111	701116	701116	1
112	701794	701794	6
113	701319	701319	6
114	701317	701317	3
117	701252	701252	4
118	701077	-	1
122	49782	49782	3
123	12391	12391	3
124	49783	49783	3
126	48390	48390	3
127	44608	44608	6
128	45565	45565	3
141	49743	49743	3
158	48362	48362	3
159	48860	48860	3
162	48363	48363	6
163	26142	26142	6
164	44612	44612	6
166	44108	44108	6
167	44109	44109	6
168	44728	44728	6
170	44729	44729	6
171	44644	44644	6
172	89827	89827	6
173	48364	48364	6
174	701278	701278	6
176	701316	701316	2
177	87951	87951	32
185	701315	701315	1
188	701279	701279	12
196	701342	701342	1
250	855042	855042	1

This pump needs 25.54 kW at 870 rpm, more than the largest motor of that speed listed here.

The flange depends on the motor, so it is chosen with the motor.

The coupling depends on the motor shaft, so it is chosen with the motor.