Complete replacement of valve body – Amico Medical Gas Check Valve with Extensions User Manual
Page 6
COMPLETE REPLACEMENT OF VALVE BODY:
1. Make sure when you order complete body replacement assemblies that the new assemblies
are identical to the original. Always reference your check valve’s part number when ordering
replacements.
2. Remove nuts and bolts using the correct size wrench (caution, using incorrect size wrench
may damage the bolts)
3. Carefully remove valve body and O-ring seals from flanges.
4. Install new O-rings and valve body.
NOTE: Insure the arrow indicated on valve body follows gas flow.
5. Install nuts and bolts as shown in (Figure B).
6. Tighten nuts and bolts following the torque chart provided below.
VALVE SIZE
BOLT SIZE
kgf-cm
In-lbs
N-m
½”
5/16-18 x 2-3/4"
90
78
9
¾”
5/16-18 x 2-3/4"
90
78
9
1"
5/16-18 x 3"
90
78
9
1-1/4”
3/8-16 x 3-1/2"
120
104
12
1-1/2”
3/8-16 x 3-3/4"
120
104
12
2"
1/2-13 x 4-1/2"
120
104
12
2-1/2”
1/2-13 x 4-1/2"
120
104
12
3"
1/2-13 x 6"
120
104
12
4”
1/2-13 x 6-1/2"
120
104
12
Tighten Bolts in the numbered sequence listed below
6
Amico Pipeline