ASME A112.18.1 pdf download

ASME A112.18.1 pdf download

ASME A112.18.1 pdf download Plumbing supply fittings
Note: Coating surface deformations that appear after performance testing (e.g., stretch marks, flow lines under thecoating, or deformations caused by stress relieving of the substrate) and do not separate, peel, or come loose are notconsidered cracks.
Pit – a small depression or cavity.
Surface defect — a pit, blister, crack, peeling, wrinkling, corrosion, or exposure of the substratevisible to the unaided eye at normal reading distance.
Note: “Unaided eye” includes vision assisted by corrective lenses normally worn by the person inspecting a device forsurface defects.
Diverter — a device that is integral to a fitting or that functions as an accessory and is used to direct theflow of water from a primary outlet to one or more secondary outlets.
Faucet- a terminal fitting.
Lawn faucet — a faucet designed to be installed horizontally on the outside wall of a building withmale or female lPS threads or copper solder connections on the inlet and hose threads on the outlet.Notes:
(1)Lawn faucets can be frostproof.
(2)The outlet is usually angled 45° from the horizontal. Lawn faucets include a flange that mounts fush with the
Sediment faucet – a horizontal faucet with male or female IPs threads on the inlet side and malehose threads at the outlet spout.
(1)The outlet can be angled approximately perpendicularly to the inlet or angled outward.
(2Sediment faucets were formerly called boiler drains because they were originally designed to drain water from
boilers and release any accumulated sediment.Today they are also used in laundry rooms as hook-ups forwashing machines.
Self-closing faucet— a faucet that closes itself after the actuation or control mechanism isdeactivated.
Note: The actuation or control mechanism can be mechanical or electronic.
Fitting – a device that controls and guides the flow of water.
Note: Fittings include faucets and valves.
Combination fitting — a fitting with more than one supply inlet delivering water through a singlespout.
Concealed fitting — a fitting with its body mounted beneath or behind a fixture, wall, or surface.Deck-mounted fitting- a fitting that is mounted on top of a horizontal surface.
Exposed fitting — a fitting whose body is mounted above or in front of a fixture’s deck or shelf.Line fitting – a fitting that does not discharge to atmosphere.
Public lavatory fitting — a fitting intended to be installed in non-residential bathrooms that areexposed to walk-in traffic.
Supply fitting — a fitting that controls and guides the flow of water in a supply system.Terminal fitting – a fitting with an open or atmospheric discharge.
Fixture — a device that receives water or waste matter, or both, and directs these substances into adrainage system.
Grasp — to firmly hold and seize an object by wrapping the fingers and thumb around it.
operating control — a part of a supply fitting or accessory that manually controls the temperature,direction, or flow rate of water or that closes and opens the water supply.
outlet —
Primary outlet – the outlet from a supply fitting on the discharge side of a valve through whichwater will discharge unless diverted to a ‘secondary outlet.
Secondary outlet — an outlet from a supply fitting on the discharge side of a valve , other than theprimary outlet,through which water can be discharged.
Permanent mark or label — a mark or label that is intended to remain in place for the lifetime of thefitting under conditions of normal use.
Physical vapour deposition (PVD) — a family of coating processes in which the surface layer isformed by the deposition of individual atoms or molecules.
Note: In PVD a material is vaporized from a solid or liquid source, transported through a low-pressure gaseous or plasmaenvironment,and condensed on a substrate surface.
Potable water — water that is satisfactory for drinking and for culinary and domestic purposes.Note: Potable water meets the requirerments of the health cuthority having jurisdiction.
Pressure —
Flowing pressure — the pressure in the piping upstream of an open fitting or accessory.Supply pressure – the static water pressure in the fitting supply piping.
Pressure envelope — the outside part of a supply fitting that withstands and contains the waterpressure.
Push-fit fitting – a mechanical fitting that joins pipes or tubes and achieves a seal by pushing by handthe mating pipe or tube into the fitting.
Note: The fittirng can be removable or non-removable.
Rigid waterway — a cross-section of a waterway that can transmit a bending load to the body of afitting.
Seal- a component or other portion of a fitting that prevents water leakage.
Seat disc – a disc or washer that provides a watertight joint when compressed against the seat.Service conditions 1(SC-1)- the coated surfaces of concealed fittings and concealed parts ofexposed fittings.
Service conditions 2 (SC-2)- the coated significant surfaces of exposed fittings and exposed parts ofconcealed fittings.
Shank — the rigid threaded portion of a supply fitting that extends below the mounting surface and hasa means for connecting to the supply piping.
Shower head— an accessory to a supply fitting for spraying water onto a bather, typically from anoverhead position.
Significant surface — an exposed surface that, if blemished, spoils the appearance or affects theperformance of a fitting.

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