Fast coolant-line connections that slash mold-change downtime. The Foster FS308 is a brass 3/8″ coupler from the FJT Series — the Jiffy-Tite mold-coolant interchange (crosses Jiffy-Matic and Parker Moldmate) used throughout plastic injection molding and die casting. Non-valved for maximum coolant flow, with a straight 1/2″ hose barb. Rated to 200 PSIG, -90F to +440F.
Specifications
- Brand: Foster
- Series: FJT (Injection Mold / Die Coolant)
- Part Number: FS308
- Interchange: 3/8″ Jiffy-Tite / Jiffy-Matic / Parker Moldmate
- Body: 3/8″ Coupler (female half)
- Hose Barb ID: 1/2″
- Stem Angle: Straight
- Connection: Hose barb (requires hose clamp)
- Valving: Non-Valved
- Material: Brass
- Max Working Pressure: 200 PSIG
- Temperature Range: -90F to +440F (silicone seal)
- Seal: Silicone
- Quantity: 1pc
- Origin: Made in USA
Why this coupler
- Jiffy-Tite mold-coolant interchange — which means it connects with the widely used Jiffy-Tite / Jiffy-Matic / Parker Moldmate mold coolant system.
- Fast mold-change connect — which means coolant lines couple in seconds, cutting machine downtime during changeovers.
- Wide -90F to +440F silicone seal — which means it handles hot oil and water/glycol heat-transfer systems.
- Non-valved, full flow — which means minimum flow resistance for maximum cooling.
Frequently asked questions
Are these Jiffy-Tite couplers?
Yes — the FJT Series is the Jiffy-Tite mold-coolant interchange and also crosses Jiffy-Matic and Parker Moldmate. Foster calls it the Injection Mold / Die Coolant Series.
What is it used for?
Connecting coolant (water, water/glycol, or oil) lines to plastic injection molds and die-casting dies, for fast mold changes.
What are the ratings?
200 PSIG max working pressure, -90F to +440F with the standard silicone seal.
Valved or non-valved?
This is the non-valved coupler. Valved couplers must be used with valved nipples; non-valved give maximum flow.
Built for the plastics and die-casting industries. Pair this coupler with the matching FJT nipple and coolant hose.
Why buy from hpcouplers: Foster quality, responsive US-based support, accurate specs, fast shipping.
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