Camlock IBC Adapters: Connecting 2” Tote Valves to Hoses and Transfer Lines
IBC totes (1000 L intermediate bulk containers) are everywhere in chemical, food and oil transfer — and the standard way to get liquid out of a tote is a camlock on the valve outlet. The 2” butterfly valve on most totes is not camlock-compatible out of the box; you need the right adapter. Here is how to spec camlock IBC adapters correctly.
Type E male adapter — the tote-side half of a standard IBC hookup.
DC dust cap on the tote valve — keeps the mating face clean between transfers.
The tote valve outlet
Most IBC totes ship with a 2” butterfly valve, and the valve outlet thread is the first thing to identify:
- 2” BSP / buttress (S60) thread — the most common IBC valve outlet thread (buttress is the trapezoidal thread used on tote valves)
- 2” NPT — common on North American totes and aftermarket valves
- 2” female NPT or BSP — some valves have female outlets that accept a male adapter directly
Measure or read the valve stamp before ordering — BSP and NPT are not interchangeable, and a mismatch is a leak or a cross-threaded valve.
The adapter types
| Adapter | Valve side | Hose side | Use |
|---|---|---|---|
| 2” female NPT × Type A (male camlock) | threads onto the male valve outlet | male camlock for a Type C/D/DC coupler | The standard tote-to-hose adapter |
| 2” male NPT/BSP × Type C (male hose shank) | threads into a female valve outlet | hose shank for hose clamps | Female-outlet totes |
| IBC-specific adapters (buttress × camlock) | buttress thread mating the valve | camlock | Direct tote connection without a valve in between |
| Camlock reducer / bushing sets | — | — | Stepping 2” tote flow down to 1” or 1½” hoses |
Most transfer rigs run the 2” female NPT × Type A adapter into the tote valve, then a Type C or D coupler on the hose — the standard A+C pump-to-hose layout, now seated on the tote.
Material rules by tote contents
- Chemical totes → polypropylene is the standard: chemically inert, lightweight, no corrosion. PP camlocks and PP adapters are the chemical-industry default for acids, alkalis and solvents (check the specific chemical compatibility for gasket choice)
- Food totes (syrup, juice, edible oil) → stainless steel with food-grade EPDM or silicone gaskets
- Water and oil totes → aluminum works for clean water and most oils; brass for petroleum products where spark resistance matters
Gasket selection for IBC transfer
- EPDM — water, most acids and food products
- Viton (FKM) — aggressive solvents, fuels, high-temperature chemicals
- NBR — oil and fuel service
- PTFE — maximum chemical inertness on the nastiest duty
When in doubt on a chemical tote, ask for a compatibility check before the adapter goes into service — a gasket failure on a chemical line is a spill, not a drip.
Transfer layouts
- Tote to hose (chemical): 2” female NPT × Type A adapter on the valve → Type C coupler → chemical hose → pump → destination
- Tote to process (food): stainless adapter + food-grade gasket → 3/4” or 1” line for controlled dosing, or 2” for bulk transfer
- Gravity flow: open the butterfly valve fully — a half-open valve restricts flow and starves the line
- Multiple totes: manifold totes with camlock T/ball-valve manifolds for continuous feed
Handling notes
- Support the hose — a heavy chemical hose hanging off the tote valve stresses the adapter and the valve; support the hose run
- Close the butterfly valve before uncoupling — then bleed any line pressure before opening the cam arms
- Cap the adapter when idle — dust caps and plugs keep the thread and groove clean
- Check the valve gasket — tote valve gaskets fail before camlock gaskets on many rigs; inspect both
- No gas service — camlocks and IBC adapters are liquid-service; never pressurize a tote with gas
Checklist for an IBC adapter order
- Valve outlet: identify 2” BSP buttress vs 2” NPT first
- Adapter: 2” female NPT × Type A (standard), buttress × camlock (direct), or reducer set
- Material: PP (chemical), stainless (food), aluminum/brass (water/oil)
- Gasket: EPDM / Viton / NBR / PTFE per the contents
- Extras: dust caps, spare gaskets, a camlock hose coupler set (C + D) to complete the rig
Tell us your tote valve thread, contents and hose size and we will confirm the adapter and coupler set.
Related guides
- Camlock coupling types explained: A to F, DC and DP — adapter and coupler matching
- Camlock material guide — PP for chemicals, stainless for food
- Camlock couplings for chemical transfer — the full chemical-duty guide
- Camlock couplings for food grade transfer — food-tote requirements