Fitting Identification - Dometic HC4645H Troubleshooting Manual

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8.3 Fitting identification

Typical NPT fittings
NOTICE!
Liquid thread sealant is used on the NPT side of these fittings only.
Straight Fitting
3/8"
TUBE
1/4" NPT
Figure 8-3.
Typical ORB fittings
NOTICE!
No sealant is used on either side of ORB fittings.
Straight Fitting
3/8"
TUBE
Figure 8-4.
Typical ORB fittings
NOTICE!
The 3/8 tube side of the fittings are the same for NPT and ORB fittings
and SeaStar hoses will fit both.
NPT
3/4" UNF
BLEED
NIPPLE
Figure 8-5.
Elbow Fitting
1/4" NPT
3/8" TUBE
Elbow Fitting
-5 ORB
45° FLARE
3/8"
3/8" NPT
45° Fitting
1/4"
NPT
3/8" TUBE
45° Fitting
3/8"
TUBE
-5 ORB
ORB
SAE -5 ORB
3/8"
TUBE
-5 ORB
EN