Our Quick Connect Fittings Mold Cooling Couplings Copper Water Nipples are precision-engineered components designed for efficient mold temperature control systems. Made of high-quality copper, these nipples ensure fast and reliable connection of cooling hoses in mold and die applications. They come in a comprehensive range of sizes, from Rc 1/8" to Rc 2", to meet diverse industrial needs. The quick-connect design minimizes installation time and reduces the risk of coolant leaks, making them an ideal choice for high-volume production environments where downtime is costly.
Crafted from premium copper, these water nipples offer excellent thermal conductivity. This feature accelerates heat transfer between the mold and cooling medium, improving cooling efficiency.
With strict adherence to dimensional standards, each model ensures a perfect fit with corresponding hoses and couplings. The consistent sizing allows for seamless replacement and interchangeability across different mold setups.
The optimized thread design and structural precision create a tight, secure seal. This prevents coolant leakage, reducing maintenance costs and avoiding production disruptions caused by system failures.

Part number | for hose | Size | |||||
L | D | H | A | T | B | ||
1TSM | Rc 1/8" | 30 | 17.5 | 14 | 9 | R1/8" | 4.5 |
2TSM | Rc 1/4" | 42 | 24 | 19 | 12 | R1/4" | 6.5 |
3TSM | Rc 3/8" | 46 | 28 | 23 | 13 | R3/8" | 10 |
4TSM | Rc 1/2" | 56 | 35 | 29 | 17 | R1/2" | 13 |
6TSM | Rc 3/4" | 65 | 45 | 38 | 19 | R3/4" | 18 |
8TSM | Rc 1" | 76 | 58 | 50 | 22 | R1" | 24 |
10TSM | Rc 1 1/4" | 86 | 69 | 54 X ∅62 | 25 | R1 1/4" | 32 |
12TSM | Rc 1 1/2" | 95 | 75 | 58 X ∅66 | 25 | R1 1/2" | 38 |
16TSM | Rc 2" | 108 | 98 | 77 X ∅82 | 29 | R2" | 49 |

Part number | for hose | Size | |||||
L | H | A | C | T | B | ||
1TPM | Rc 1/8" | 32 | 12 | 9 | 15.5 | R1/8" | 4.5 |
2TPM | Rc 1/4" | 38 | 17 | 13 | 18 | R1/4" | 6.5 |
3TPM | Rc 3/8" | 43 | 19 | 13 | 21 | R3/8" | 10 |
4TPM | Rc 1/2" | 52 | 22 | 17 | 24 | R1/2" | 13 |
6TPM | Rc 3/4" | 59 | 32 | 19 | 28 | R3/4" | 17 |
8TPM | Rc 1" | 73 | 41 | 22 | 36 | R1" | 25 |
10TPM | Rc 1 1/4" | 83 | 50 | 23 | 39 | R1 1/4" | 32 |
12TPM | Rc 1 1/2" | 93 | 64 | 26 | 45 | R1 1/2" | 38 |
16TPM | Rc 2" | 102 | 75 X ∅80 | 27 | 51 | R2" | 50 |
These copper water nipples are widely used in injection molding machines. They connect cooling lines to molds, maintaining stable mold temperatures. This ensures the quality and consistency of plastic products.
In die casting, the nipples facilitate efficient cooling of metal molds. This reduces cycle times and extends the service life of expensive dies.
They are also suitable for various industrial equipment that requires precise temperature control, such as hydraulic systems and machine tool cooling units.
Our Quick Connect Fittings Mold Cooling Couplings Copper Water Nipples are designed to withstand typical industrial cooling system pressures. For specific pressure limits, please contact our technical support team with your model number.
Yes, we offer customization services for thread sizes to meet your unique application requirements. Reach out to our sales team to discuss your custom needs.
Ensure the thread surfaces are clean and free of debris before installation. Tighten the nipple with a proper wrench, but avoid over-tightening, which can damage the threads.