9
External-Style Pressure Relief Valve A-1402C Series
1.3.4
Required Tools
Before arriving at the installation site obtain the required tools and supplies prior to performing the procedures
indicated in this guide.
Tongue Mounting
Figure 2-1 Gasket-Sealing Surfaces
Recommended Wrenches
SAE
Component
Torque (ft.-lbs.)
Item #
5/16” Hex
3/8” Rupture Disc
Flange Bolt
25
25
9/16"
1/2" Top Guide Nut
50
17
1-1/2"
1" Top Lock Nut
45
8
1/2"
1/8" NPT Needle Valve
Wrench Tight
27
1-1/16"
Flats on Small Valve
O-ring Retainer, 5/8"
Mounting-stud Nuts
1-1/4"
Flats on Large Valve
O-ring Retainer, 3/4"
Mounting-stud Nuts
Table 1-2 Required Tools
Other Tools and Supplies
Screwdrivers
Pipe Wrench
Wheel Puller
Lint-free Cloth
Silicone Grease (or equivalent lubrication)
Emery Paper (400 grit, cut in 1" strips)
Torque Wrench
Wire Brush
Table 1-3 Additional Recommended Tools & Supplies