300 Compact Pipe and Bolt Threading Machine
Die
W
Pipe
Starting to Cut Thread
A - Full Width Die Thread
Ring
Gage
Flush
One Turn Large
(Basic Size)
(Maximum Size)
B - Checking Threads Within Pipe Gauge
Figure 14 – Checking Thread Length
NOTE! If a ring gauge is not available, a fitting can be
used. This fitting should be representative of
those being used on the job. The pipe thread
should be cut to obtain 2 to 3 turns hand tight
engagement with fitting. If pipe thread is not
proper diameter the index line should be moved
in the direction of the OVER or UNDER size
mark on size bar. (Refer to "Installing Dies In Die
Heads").
No. 819 Nipple Chuck
The RIDGID 819 Nipple Chuck is a quick and easy tool for
holding short and close nipples or studs for threading.
" to 2" Standard Pipe (NPT)
Capacity:
1
/
8
" to 2" Bolts or Studs (UNC or UNF)
1
/
4
Pipe Adapters
",
",
",
"
1
/
1
/
3
/
1
/
8
4
8
2
", 1", 1
", 1
"
3
/
1
/
1
/
4
4
2
Short or Close Nipple
Threading Procedure
WARNING
The REV/OFF/FOR switch should be in the OFF
position until nipple chuck is set up and ready to
thread.
1. Grip pipe in machine chuck. Thread and ream one
end and cut nipple to desired length.
2. Place nipple chuck body (Figure 15) in Threading
Machine chuck, gripping jaw grooves. Tighten chuck
with snap spin of handwheel.
3. Position insert (Figure 16) with small end toward
Die
Die Flush
W
With End
of Pipe
Pipe
Completed Thread
One Turn Small
(Minimum Size)
Stud Adapters
" to 2" UNC
1
/
4
" to 1
" UNF
1
/
1
/
4
2
Ridge Tool Company
" to
chuck body for
1
/
8
chuck body for 1" pipe; no insert required for 1
pipe and up.
Figure 15 – Place Nipple Chuck Body in Power Drive
Figure 16 – Place Insert into Nipple Chuck
4. Select proper size nipple chuck adapter and screw
into nipple chuck (Figure 17) by hand. Tighten with
wrench provided with nipple chuck.
To prevent injury, remove wrench before
WARNING
turning on machine.
5. Screw nipple threaded on one end into adapter by
hand. Turn directional switch to ON and press down
on foot switch. Ream and thread other end.
6. Insert pin on end of wrench (Figure 18) into one of
holes in nipple chuck release collar and turn. Remove
threaded nipple by hand.
" pipe; large end toward
3
/
4
1
13
"
/
4