AseptiQuik STC

AseptiQuik® STC Connectors integrate the AseptiQuik sterile connector and the Steam-Thru® II SIP connector, giving manufacturers with even greater flexibility for hybrid stainless steel and single-use processing. The AseptiQuik STC connector combines either an AseptiQuik G or AseptiQuik C sterile connector with a Steam-Thru II connection that can be mounted directly to a stainless steel vessel via a sanitary termination. AseptiQuik STC connectors utilizing an AseptiQuik G sterile connector offer a genderless design, simplifying system integration at the aseptic connector end. AseptiQuik STC connectors utilizing an AseptiQuik C sterile connector allow system designers to incorporate a keyed female-to-male connection at the aseptic connector end.

The union of the two connectors into a single unit through a sanitary clamp allows an AseptiQuik sterile connection to be steamed on to stainless equipment via SIP. After the SIP cycle, a wide range of single-use systems can be connected. The SIP process can be done in advance allowing a quick and easy sterile connection to the AseptiQuik half without having to wait 30-60 minutes for SIP prior to harvest.
Features Benefits
AseptiQuik design Innovative three-step connection process reduces risk of operator error
Genderless Design Eases integration of single-use systems with universal mating between AseptiQuik G Connectors
Robust Construction Repeatable and reliable performance with no additional hardware required
Patented Steam Valve Design Allows sterile connection and disconnection to stainless equipment and permits a high media flow rate.
Sanitary Interface Between the Two Connectors More secure connection than tubing with cable ties
CPC Click

Audible confirmation of assembly steps

Market Availability Open access through multiple supply chain partners
Steam Position: Up to 35 psi, 2.4 bar 
Flow Position: Up to 20 psi, 1.4 bar
Steam Position: Up to 275°F ( 135°C) for 60 minutes
Flow Position: 39°F to 104°F (4°C to 40°C)
Main Components: AseptiQuik - Polycarbonate (white), USP Class VI, ADCF
Steam-Thru II - Polysulfone (amber tint), USP Class VI, ADCF
Seals: Silicone (clear), platinum-cured, USP Class VI, ADCF 
Pull Tabs: Polycarbonate (blue, standard version), USP Class VI, ADCF
Polycarbonate (white, HT version), USP Class VI, ADCF
Caps: Polypropylene (clear), USP Class VI, ADCF
Membrane: Polyethylene (standard version), USP Class VI, ADCF
Hydrophobic polyethersulfone (HT versions), USP Class VI
Clamp: Nylon 66 (white), USP Class VI
Gamma: Up to 50 kGy irradiation.

High Temp (HT) version:
Up to 266°F (130°C) for 30 minutes (AQSTC)

Up to 266°F (130°C) for 60 minutes (AQGSTC)

Note: a slight rotation of the clamp nut may be needed after autoclave.


WARNING: Pressure, temperature, chemicals and operating environment can affect the performance of couplings. It is the customer’s responsibility to test the suitability of Colder products in their own application conditions. Use the graph above as a guide.
straigh-through Cv ~ 0.19 (2.74) max
single shut-off Cv ~ 0.08 (1.15) max


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AQSTC2330900 product photo


3/4 Sanitary AseptiQuik STC
AQSTC2331000HT product photo


1-1/2 Sanitary AseptiQuik STC - High Temperature
AQSTC2330900HT product photo


3/4 Sanitary AseptiQuik STC - High Temperature
AQSTC2331000 product photo


1-1/2 Sanitary AseptiQuik STC


AQGSTC2330900 product photo


3/4 Sanitary AseptiQuik G STC
AQGSTC2331000HT product photo


1-1/2 Sanitary AseptiQuik G STC - High Temperature
AQGSTC2331000 product photo


1-1/2 Sanitary AseptiQuik G STC
AQGSTC2330900HT product photo


3/4 Sanitary AseptiQuik G STC - High Temperature
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