Mold Coolant Plugs
1/4″, 3/8″ & 1/2″ Body Size
Maximum 200 PSI
DME Jiffy-Tite and Jiffy-Matic and Parker Moldmate Interchange.
Series HM couplers are the standard in the injection molding industry and are fully interchangeable with other mold coolant coupler series. They are constructed of solid brass with silicone lathe cut seals and stainless components for corrosion resistance in water. They come standard with silicone seals and can be fitted with sleeve locks for safety or can be ordered with regular hose barbs, push lock hose barbs and along with a variety of 90 and 45 degree variations. Extension plugs are also available.
Click on any of the part numbers to request a quote.
Valved Plugs
 | MNPT | Steel 1/4" Plug | Brass 1/4" Plug | Valved |
| 1/8" | N/A | HP251 | N/A | |
| 1/4" | HP252S | HP252 | N/A | |
| 3/8" | N/A | HP253 | N/A | |
| MNPT | Steel 3/8" Plug | Brass 3/8" Plug | Valved | |
| 1/8" | N/A | HP351 | N/A | |
| 1/4" | HP352S | HP352 | N/A | |
| 3/8" | N/A | HP353 | HP353V | |
| 1/2" | N/A | HP354 | N/A | |
| MNPT | Steel 1/2" Plug | Brass 1/2" Plug | Valved | |
| 1/2" | N/A | HP554B | N/A | |
| 3/4" | N/A | HP556B | N/A |
Unvalved Plugs
 | FNPT | Steel 1/4" Plug | Brass 1/4" Plug |
| 1/8" | HP251F | HP251FB | |
| 1/4" | HP252F | HP252FB | |
| 3/8" | HP253F | N/A | |
| FNPT | Steel 3/8" Plug | Brass 3/8" Plug | |
| 1/4" | HP352F | HP352FB | |
| 3/8" | HP353F | HP353FB | |
| FNPT | Steel 1/2" Plug | Brass 1/2" Plug | |
| 1/2" | HP554F | N/A | |
| 3/4" | HP556F | N/A |
Extension Plugs
 | HP251X___ | 1/4" Plug | X 1/8" MPT |
| HP252X___ | 1/4" Plug | X 1/4" MPT | |
| HP253X___ | 1/4" Plug | X 3/8" MPT | |
| HP352X___ | 3/8" Plug | X 1/4" MPT | |
| HP353X___ | 3/8" Plug | X 3/8" MPT | |
| HP354X___ | 3/8" Plug | X 1/2" MPT | |
| HP554X___ | 1/2" Plug | X 1/2" MPT |
Lengths Available: 2.5″, 4″, 5.5″, 7″, 8.5″
- One piece construction for fast assembly, positive removal.
- Installation problems associated with pipe nipple extensions on standard plugs are eliminated.
- One-piece brass construction eliminates a potential leak.
- Point and ensures remove ability.
Socket sleeve must be manually retracted to connect Precision leak proof seal, lathe cut from silicone tubing. Two piece construction Sockets have six balls, 200 PSIG, -65 to 425°F | Two-way sockets and plugs eliminate coolant loss Two-way plugs can only be used with two-way sockets. Regular plugs may be used |