dhi interconnection kit for mpg1 with rpm4 or pg 7302 pn 402265 instruction sheet User Manual

 

DH500 6 in. nipple 

1 

100208 

DH500 12 in. nipple 

1 

100209 

DH500 nipple, 5 in. x 1/8 in. 

2 

123019 

DH500  tee 

1 

100291 

DH500 plug 

1 

100285 

Adaptor, DH500F x 1/8 in. NPTM 

2 

102819 

 

This kit provides the tubing and fittings necessary to 
connect an MPG1 pressure controller to either an 
RPM4 reference pressure monitor or to a PG 7302 
piston gauge, and also to a device under test.  This 
document contains instructions for connecting the 
fittings and tubing. 

n   Remove Plugs from MPG1 and RPM4 or PG 

7302:  Unscrew the glands from the MPG1’s test 
ports and RPM4’s or PG 7302’s test port. 

 

Remove the collar and plug from inside each 
gland.  There should be two plastic plugs and one 
steel plug. The plastic plugs will not be used.  
Keep the steel plug.      

o  Install glands and collars onto flexible 5 in. 

nipples:  Slide a gland over a nipple so that the 
gland’s threads face outward.  Next, screw a collar 
onto the nipple by turning it to the LEFT.  Allow 
two nipple threads to show between the collar and 
nipple tip.   

p

p

q  Install nipples into three way tee:  Install the 5 

in. nipple  into the center port of the three way tee.  
Install either the 6 in. or 12 in. nipple into either of 
the end ports on the three way tee as shown in 
figure 1. Tighten the nipples with a 5/8 in. wrench 
or crescent wrench. The thick nipple on the right 
connects to the MPG1.  The thin nipple in the 
center of the plug connects to the RPM4 or to the 
PG7601. In figure 1 the left port is currently 
plugged, but the remaining thin 5 in. nipple can go 
in the left port and connect to the DUT. 

Figure 1:  Two nipples installed in 3-way tee.

r    Optional: Extend the front feet on RPM4:  The 

RPM4’s front feet can be extended so that the RPM4 
is inclined for easier reading and display access. 

s  RPM4 A70M or less -  install NPT adapter into 

RPM4.  RPM4s that have ranges less than 70 
MPa (10,000 psi) have 1/8 in. NPTF test ports.  
These ports require the use of one of the DH500F 
by 1/8 in. NPT adapters.  Wrap Teflon thread tape 
around the NPT adapter’s threads three times, 
and install the adapter into the RPM4.     

t  Install the free end of the center nipple into 

RPM4 or PG 7302:   The center, thin, 5 in. nipple 
should be inserted into the RPM4’s or the PG 7302’s 
test port.   Screw in the gland in loosely by hand.  
The nipple can be bent slightly to ensure that nipple 
enters straight into the test port.  Do not tighten the 
gland in the RPM4 or PG 7302 yet, since it will be 
tightened when the system is primed.   

Interconnection Kit 

 For 

MPG1 with RPM4 or PG 7302

 

Instruction Sheet