KoLink™ Dispense Head & Diptube Insert
One Connection Across All Kurko Drums and IBCs
A patent-pending keyed interface for dispensing wet-process chemicals from Kurko drums and IBCs. The Dispense Head and Keyed Diptube Insert each carry a configurable code, assigned per chemical service. A mismatched pair will not seat — a cross-connection stops mechanically, before a fluid path opens
KoLink Keyed DH & DT
Every rivet on the head must find an open position on the insert. A mismatched pair will not seat — and nothing flows.
Rivets and blocker plugs sit in the key-coding collar and insert ring — never in the fluid stream
Any blank insert configures to any code. The chemistry is the last thing installed, not the first thing manufactured.
Verification lives in the geometry itself — nothing to power, scan, or maintain at the point of dispense.
KoLink™: Dispense Head, Keyed Diptube Insert, and Coding Elements for UP55/HP55 Drums and UP275/HP275 IBCs
Rivet code elements
Color-coded by chemical service
Blocker plug code elements
Color-coded by chemical service
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Every chemical service takes its own code from 1 blank insert — colored elements provide a visual safety cue while the 8-position coding geometry enforces the physical connection. A mismatched KoLink™ Dispense Head will not seat a Keyed Diptube Insert; no seat, no flow.
One blank Keyed Diptube Insert replaces a dedicated keyed dip tube for every chemical service; coding elements set the code at the bench, on demand.
Stock held to cover the portfolio drops from one dedicated dip tube per service to one pool of blanks and a bin of coding elements, committed only when coded.
A blank on the producer’s shelf becomes a coded, chemistry-specific insert with coding elements on hand; no special order and no order book behind a new code.
Achieved by one standardized containment system: reconfigurable fill-and-dispense hardware across drums & IBCs, pooled inventory, denser freight.
Mechanical Verification
Example service: CMP Slurry — row 10 in the code assignments →
Alignment tabs
Alignment slots
Every KoLink™ pair carries the same eight key positions, P1–P8, around the central fluid passage. Tabs on the head engage slots on the insert and fix the rotation, so P1 always meets P1 and a code cannot rotate into a false match.
A chemical service's code is the pattern installed in those positions — coding rivets on the head, blocker plugs on the insert. Each rivet must find an open position; a mismatched code stops at a blocker before the seals ever touch.
With the code matched, the collar draws the head down, the O-rings engage, and the flow path aligns for closed-system transfer. The coding elements stay in the collar and the insert ring, outside the wetted path.
Reconfigure, Don't Replace
Press-fit rivets set the dispense-head side of the code in the coding collar. Every head ships identical; the rivets assign the code.
Press-fit plugs set the insert side of the code across the eight-position ring, closing every position outside the assigned code. Every blank insert ships identical; the blockers assign the code.
Color-coded elements make a mismatch visible before a connection is attempted. Even if the color is missed, a mismatched pair will not seat — and nothing flows.
To change chemical service, swap the coding elements — the head and insert assemblies stay in service through their life. Any blank insert configures to any code.
Each keyed chemical service is assigned a code across the eight-position array: coding rivets occupy the listed Dispense Head positions, and the Keyed Diptube Insert’s blocker plugs close the exact complement. Universal Use shows no head rivets or insert plugs; Miscellaneous retains its assigned complementary key pattern. Fifteen standard services are assigned, with additional codes held in reserve for fab-specific service.
| # | Chemical service | Compatible Containers | Shipping Closures | Color-Coding | Dispense Headrivet positions | Keyed Diptube Insertplug positions |
|---|---|---|---|---|---|---|
| 01 | Nitric AcidHNO3 | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02Manual Relief Ship Cap optional | Red | ➊➋➂➃➄➅➆➇ | ➀➁➌➍➎➏➐➑ |
| 02 | Sulfuric AcidH2SO4 | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02 | Yellow | ➊➁➌➃➄➅➆➇ | ➀➋➂➍➎➏➐➑ |
| 03 | Ammonium HydroxideNH4OH | HP275 / UP275 IBCHP55 / UP55 drum | Manual Relief Ship Cap | Forest Green | ➀➁➂➍➄➅➐➇ | ➊➋➌➃➎➏➆➑ |
| 04 | Acetic AcidCH3COOH | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02 | Brown | ➀➋➌➃➄➅➆➇ | ➊➁➂➍➎➏➐➑ |
| 05 | Hydrochloric AcidHCl | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02Manual Relief Ship Cap optional | Cobalt Blue | ➊➁➂➃➄➅➆➑ | ➀➋➌➍➎➏➐➇ |
| 06 | Hydrofluoric AcidHF | HP275 / UP275 IBCHP55 / UP55 drum | Manual Relief Ship Cap | Orange | ➀➋➂➃➄➅➆➑ | ➊➁➌➍➎➏➐➇ |
| 07 | Ammonium FluorideNH4F | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02 | Medium Gray | ➀➁➂➃➎➅➆➑ | ➊➋➌➍➄➏➐➇ |
| 08 | Phosphoric AcidH3PO4 | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02 | Purple | ➊➁➂➃➄➏➆➇ | ➀➋➌➍➎➅➐➑ |
| 09 | Hydrogen PeroxideH2O2 | HP275 / UP275 IBCHP55 / UP55 drum | Continuous Vent Ship CapKCAP-VC06 / VC02 | Burgundy | ➀➁➌➃➄➏➆➇ | ➊➋➂➍➎➅➐➑ |
| 10 | CMP SlurryCMP | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02 | Neon Lime | ➀➋➂➃➄➏➆➇ | ➊➁➌➍➎➅➐➑ |
| 11 | Sodium HydroxideNaOH | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02 | Charcoal Black | ➀➁➌➃➄➅➆➑ | ➊➋➂➍➎➏➐➇ |
| 12 | TMAH DeveloperTMAH | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02 | Pink | ➀➁➌➃➄➅➐➇ | ➊➋➂➍➎➏➆➑ |
| 13 | Buffered Oxide EtchBOE | HP275 / UP275 IBCHP55 / UP55 drum | Standard Ship CapKCAP-SC06 / SC02 | Light Blue | ➀➋➂➃➄➅➐➇ | ➊➁➌➍➎➏➆➑ |
| 14 | Universal UseUU | Not specified. | Not specified. | Sand Beige | ➀➁➂➃➄➅➆➇ | ➀➁➂➃➄➅➆➇ |
| 15 | MiscellaneousMISC | Not specified. | Not specified. | Natural Clear | ➊➁➂➃➎➅➆➇ | ➀➋➌➍➄➏➐➑ |
For the keyed assignments the rule is mechanical. Color identifies; geometry enforces — a mismatched pair will not seat. For each keyed row the Keyed Diptube Insert set is the exact eight-position complement of its Dispense Head code; Universal Use carries no rivets or plugs. Container and closure listings follow each platform’s chemistry compatibility set, and the closure assignment applies to both container platforms shown for that chemical service. Assignments are confirmed per chemical service, concentration, and closure configuration at qualification.
KoLink™ keys the dispense connection at the container’s 2-inch port. The Keyed Diptube Insert ships installed in every Kurko drum and IBC; the fab-side Dispense Head seats only when its eight-position code matches the insert’s. Coding elements sit in the head collar and the insert ring, outside the wetted path.
