Advertisement
Quick Links
RL Series Relief Valve
The valve is shipped assembled complete less the adjustment cap and the lock nut. Springs can be acquired by
ordering the appropriate kit. Spring kits are as follows:
Each kit includes a Spring, two (2) PTFE washers, a label, locking wire, and a lead tie down disk.
Figure 1: RL Series
Relief Valve Cross
Sectional View
Spring Acquisition
Spring Pressure Range
10-25 psi
25- 50 psi
50-100 psi
100-150 psi
150-225 psi
225-400 psi
10-225 psi
Maintenance
Instructions
MI-137 Revision A
Kit Name
Color Code
KIT-RL4SP-0-25
Magenta
KIT-RL4SP-25-50
Brown
KIT-RL4SP-50-100
Purple
KIT-RL4SP-100-150 Dark Green
KIT-RL4SP-150-225 Dark Blue
KIT-RL4SP-225-400 White
KIT-RL4SP-10-225
None
1
Figure 2: RL Series
Relief Valve with
Manual Overrride
Cross Sectional View
Parker Hannifin Corporation
Instrumentation Valve Division
Jacksonville, Alabama
Advertisement
Related Manuals for Parker RL Series
Summary of Contents for Parker RL Series
- Page 1 Maintenance Instructions MI-137 Revision A RL Series Relief Valve Spring Acquisition The valve is shipped assembled complete less the adjustment cap and the lock nut. Springs can be acquired by ordering the appropriate kit. Spring kits are as follows: Spring Pressure Range...
- Page 2 O-ring and back-up ring). 3. Place the O-ring or O-ring/Back-up ring into the groove provided for it. Gently slide the o-ring over the mandrel in this direction Lower Stem Assembly Body Bonnet Assembly Parker Hannifin Corporation Instrumentation Valve Division Jacksonville, Alabama...
- Page 3 Cap. 13. If the valve has a Manual Upper Stem, thread the Handle onto it. Figure 4: RL Series Relief Valve with Manual Override Exploded View Setting Desired Cracking Pressure 1. Rotate the Cap to set the desired cracking pressure.
- Page 4 Normal make-up for US Customary port sizes 4 thru 16 (1/4 thru 1 inch) and SI port sizes 5 thru 25 (5 thru 25 mm) is 1 1/4 turn from finger tight. For larger port sizes consult Parker Ferrule Presetting Tool Instructions.
- Page 5 The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are subject to change by Parker Hannifin Corporation and its subsidiaries at any time without notice. ALL PARKER VALVES MUST PASS A RIGID OPERATIONAL AND LEAKAGE TEST BEFORE LEAVING THE FAC- TORY.