Kelso JS75 - Page 5

4
JS PRESSURE RELIEF VALVES
© 2017 Kelso Technologies (USA) Inc. All Kelso Valves are Patent Protected. Detailed designs are subject to change without notice.
Kelso Technologies Inc. 1526 Texas Ave, Bonham, TX. 75418, Phone: (903) 583-9200
Document No. - KTUD112
Revision 6 – 2/7/2022 (Original Release 12/7/2015)
www.kelsotech.com
Printed in U.S.A.
Item No.
Qty.
Description
1
1
Flange Assembly
2
1
Seal Disc
3
1
Seal
4
1
Seal Retainer
5
1
Spring Block Assembly with Springs*
6
1
Adjustment Screw Assembly
7
1
1-1/4 – 7 Hex Jam Nut
8
4
3/8 – 16 x 5” Hex Head Bolt
9
4
3/8 – 16 Nylon Insert Lock Nut
10
1
10” Dome Cover
11
4
3/8 – 16 x 1” Hex Head Bolt
12
1
Thrust Washer
13
1
Needle Bearing
14
1
Thrust Washer
15
1
Nameplate (Not Shown)
16
2
Nameplate Screw (Not Shown)
17
4
3/8” Split Lock Washer
Figure 1.3.3
*The number of spring laminations can vary, replace with like assemblies.
The needle bearing assembly (if applicable) is rated for up to 450° F. The limiting
factors of Kelso’s Technologies PRV are the seal and spring drum.
4 or 3 Bolt PRV:
Valve Model
Set
Pressure
(psig)*
Flow Rate
(SCFM-Air)
Orifice
Diameter
(in.)
Flow Area
(Sq. Inches)
Weight
(lbs.)
Flange
Thickness
(in.)
JS75L/LS
75
1681 @ 85 psi
1.13
1
21
.75
JS165L/LS
165
3445 @ 182 psi
1.13
1
22
.75
JS75XL/XLS
165
4089 @ 85 psi
2.05
3.32
18
.75
JS75LT/LTS
75
1681 @ 85 psi
1.13
1
18
.88
JS165LT/LTS
165
3445 @ 182 psi
1.13
1
18
.88