What is a boss on a valve?

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What is a metal boss?

A shallow raised shape that is pressed into a sheet of material to increase the strength in a local area. Also called embossment.

What is a boss on a drawing?

A boss is a cylindrical protrusion placed on a part’s wall. A boss can have various functions, such as the following: Positioning aid – To help align parts during assembly; for example, a pin on one part will fit a hole in the other part.

What is the purpose of a Bosshead?

Bossheads are essential parts to complete the laboratory retort stand construction for titration, filtration, or distillation experiments. With two screw clamps, bossheads attach to the vertical rod supported by the apparatus base and simultaneously securely hold the sample.

What is a boss on a valve? – Related Questions

What is a Bosshead and clamp?

A bosshead, sometimes called clamp holder, is a metallic piece of labware used to hold various metal rods and extension clamps, like iron rings or other utility clamps.

What is a clamp in chemistry?

Noun. clamp stand (plural clamp stands) (chemistry) An item of laboratory equipment which consists of a metal pole with a solid, firm base, used to hold, or clamp, laboratory glassware and other equipment in place, so that they do not fall down or come apart.

What is the use of clamp holder?

A clamp holder or clamp fastener is a piece of laboratory apparatus that is used to secure laboratory clamps, such as extension-type utility clamps, or other attachments to a ring stand or lab frame. The material can be made up of brass, cast iron, stainless steel, aluminium or nickel-plated zinc.

What is a retort stand used for?

retort stand (plural retort stands) (chemistry) An item of laboratory equipment which consists of a metal pole with a solid, firm base, used to hold, or clamp, laboratory glassware and other equipment in place, so that they do not fall down or come apart.

What is a clamp used for in science?

Utility clamps support your flasks, beakers, and burettes. They stabilize your sample containers, preventing possible breakage and sample loss. Some specifics about utility clamps: They are available in nickel-plated zinc or stainless steel construction.

What does a utility clamp look like?

A utility clamp is a laboratory apparatus resembling a pair of scissors. The screw in the middle works as the wide adjustment of 2-prong. It is composed of 3 parts: 2-prong adjust, metal rod, and clamp down (the clamp is attached to the ring stand for adjusting the height).

What is a iron ring used for?

Iron rings are commonly used in chemistry laboratories for supporting apparatus above the work surface, for example: a tapered item such as a filter funnel or separatory funnel. a clay triangle, which itself supports an item such as a crucible.

What is a clay triangle?

Definitions. A clay triangle is a wire and ceramic triangle used to support a crucible while it is heated over a Bunsen burner. A crucible is a ceramic vessel with a lid that is used to heat solid chemical substances to high temperatures to dry them completely or to induce a reaction without solution.

What holds a burette onto a ring stand?

A burette clamp is an essential tool for any lab that requires heating a solution with a burner and ring stand. This metal tool attaches to the stand to hold a glass burette, test tube, flask, etc.

What can I use instead of beaker?

synonyms for beaker
  • chalice.
  • glass.
  • goblet.
  • mug.
  • stein.
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What is a small glass tube called?

A test tube, also known as a culture tube or sample tube, is a common piece of laboratory glassware consisting of a finger-like length of glass or clear plastic tubing, open at the top and closed at the bottom.

Is used to measure volume very precisely?

Volumetric flasks measure volumes much more precisely than beakers or Erlenmeyer flasks.

How do you hold a test tube over a Bunsen burner?

How do you measure volume of a solid?

What is used to pour liquids into containers with small openings?

A funnel is a tube or pipe that is wide at the top and narrow at the bottom, used for guiding liquid or powder into a small opening.

What is used to heat materials with a very hot flame using a gas jet?

Bunsen burner, device for combining a flammable gas with controlled amounts of air before ignition; it produces a hotter flame than would be possible using the ambient air and gas alone.

What is used to grind chemicals to powder?

Mortar and pestle – A mortar and pestle are used to crush and grind solids into a powder. The mortar is a bowl and the pestle is a small club-shaped tool.

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