Replacement Part List
AR North America Operating Instructions and Parts Manual 1MDA4
High Pressure Pumps and Accessories
NORTH
AMERICA
AR North America Operating Instructions & Parts Manual VRT3-250
Unloader
Description
This AR North America adjustable unloader valve efficiently transfers high pres-
sure water from outlet to by-pass protecting system from over pressurization.
Includes choice of two 3/8” F inlet ports, two 3/8” F by-pass ports, 3/8” F outlet
port, and 1/4” F gauge port allowing for easy adaptions to meet systems. Made
with forged brass body, stainless steel plunger, and Teflon and Buna-N O-rings.
For use with water only. Not for use with flammable fluids.
Form VRT3-250
Figure 1 - VRT3-250
Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described.
Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or
property damage! Retain instructions for future reference.
Specifications
VRT3-250 VRT3-250
PSI 4000 By-Pass (2) 3/8” F Pipe Thread
GPM 8 Inlet (2) 3/8” F Pipe Thread
Max Temp 190º F Outlet (1) 3/8” F Pipe Thread
Spring Color I.D. Black
20
19
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
15
6
26
9
21
25
24
23
22
1 0109712660 Body 3/8 NPT F 1
2 060129 O-Ring 1
3 0106720380 Bushing 1
4 0112720070 Ball 1
5 0107720820 Spring 1
6 0110751311 O-Ring 2
7 0115712390 Raccsede 3/8” NPT F 1
8 0104720230 Stem 1
9 000125 Backup Ring 2
10 0110750910 O-Ring 1
11 0110750170 O-Ring 1
12 0122790030 Backup Ring 1
13 0115712250 Guide Stem 1
14 0118720120 Spring Pin 1
15 030200 Nut 2
16 0107770070 Spring 1
17 150204 Washer 1
18 400305 Handle 1
19 030101 Self locking Nut 1
20 0128740080 Cover Knob 1
21 060109 O-Ring 1
22 0157710040 Shutter 1
23 0107720800 Shutter Spring 1
24 0110751321 O-Ring 1
25 0103710740 Plug 3/8 NPT M 1
Repair Kit
005-650213
Repair Kit Includes the Following:
2 060129 O-Ring 1
3 0106720380 Bushing 1
4 0112720070 Ball 1
6 0110751311 O-Ring 2
9 000125 Backup Ring 2
10 0110750910 O-Ring 1
11 0110750170 O-Ring 1
12 0122790030 Backup Ring 1
21 060109 O-Ring 1
24 0110751321 O-Ring 1