Nipple Type Brass Nipple Fitting For cooling systerm:

Materials: Connection, valve, valve body and unlocking sleeve: Brass or 1.4305, spring, circlip and locking balls, Stainless steel, seals, Viton (PTFE coated) 
Temperature range: -20°C to max. +160°C 
Operating range: For liquid media with temperatures up to +160°C, e.g. for cooling circuits on plastic machines (+200°C on request) 
Optional: with unlocking protection (standard by stainless steel couplings) -S 
To differentiate the brass couplings easier: 
Coupling socket: Sliding sleeve made of plain brass = shut-off, sliding sleeve made of nickel-plated steel = valveless 
Coupling plug: Valve plug can automatically close to prevent leakage when couplings are disconnected or open to let fluid get through when couplings are connected. Key parts are induction hardened for a better durability. 
Compatible with: TZ90/9*63

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