Receiver Adapter, Sloping Delivery

Quick Answer: A sloping delivery receiver adapter is a glass distillation fitting that takes the output of a condenser and delivers it along a downward slope rather than turning it straight down. It suits set-ups where the receiver stands forward of the condenser or is held at an angle.

A Slope Instead of a Drop

Most receiver adapters turn the distillate through a bend so that it falls vertically into a flask directly under the condenser. The sloping pattern keeps the liquid running along the glass at an angle, carrying it forward to the receiver. The distillate travels as a film along the lower inside wall instead of falling in drops, which reduces splashing and suits receivers set a little away from the condenser outlet, such as a flask standing in a cooling bath beside the retort stand.

A gentle slope also adds little height to the set, and it pairs naturally with a condenser clamped at a shallow angle, because the delivery changes direction only slightly.

The title does not describe the end of the delivery limb, whether it finishes in a ground cone for a jointed receiver or a plain drip tube for an open vessel, and it does not give the slope angle. These details decide which receivers the adapter will fit.

Applications

• Delivering distillate into a receiver standing in an ice or water bath beside the apparatus
• Steam distillation where a large collecting flask stands on the bench in front of the condenser
• Demonstration sets in which students should see the distillate running from condenser to receiver
• Collecting into a receiver clamped at an angle

Specifications

Care & Handling

• Set the condenser and adapter so the path falls continuously; a dip or level section lets distillate pool in the bend.
• Clamp the receiver at the height the delivery tip reaches rather than lifting the adapter to meet it.
• Clean along the full length of the sloping limb with a long bottle brush, since film residues dry along the lower wall.

Why Choose LabEquip

Teaching labs and small production labs that collect distillate in large or cooled vessels on the bench choose sloping delivery adapters for easier receiver placement. LabEquip lists this adapter under chemistry lab equipments alongside the straight delivery receiver adapter; send your condenser joint size through the contact page.

Frequently Asked Questions

How does a sloping delivery adapter differ from a bent receiver adapter?

A bent adapter turns the distillate so it falls nearly vertically into a flask directly below. A sloping delivery adapter keeps it moving forward at an angle, so the receiver can stand further from the condenser.

Does the distillate splash less?

Generally yes, because the liquid runs down the lower wall of the limb as a film instead of falling freely in drops. That is useful when the receiver already holds liquid.

Can I use a sloping delivery adapter with a flask that has a ground-glass neck?

Only if the delivery end is a matching cone and the flask is held at the same angle, which is awkward. For upright jointed receivers a bent or vertical delivery adapter is usually easier.

Is it suitable for vacuum distillation?

No vacuum connection is named in the title, so use it for atmospheric distillation into an open receiver. Vacuum work needs an adapter with a side tube for the pump.

Why does distillate collect in the adapter instead of reaching the receiver?

The slope is probably too shallow or reversed somewhere along the train. Tilt the condenser a little more steeply so the whole path runs downhill to the tip.

Which receivers suit sloping delivery?

Conical flasks, beakers and measuring cylinders standing on the bench, or flasks sitting in a cooling bath beside the stand. Their open mouths take the angled tip easily.

Last Updated: September 2026