1.3 Flashcards
(28 cards)
intenational standards for pipe flanes and flanged fittings
ANSI/ASMME B16.5
intenational standards for standard specifications for seamless CARBON steel pipe for high temperature service
ASTM A106
intenational standards for piping fittings of wrought carbon steel and alloy steel for moderate and high temperature service
ASTM A234
NATIONAL STANDARDS FOR High Density PE pipes for potable water supply - specification
PNS 55
NATIONAL STANDARDS FOR PB pipes for potable water supply - specification
PNS 152
NATIONAL STANDARDS FOR for unplasticized PVC for potable water supply - specification
PNS 65
NATIONAL STANDARDS FOR for grey iron pipes for pressure water lines - specification
PNS 1991
A variety of ____________ must be used to connect pipe lengths and make all the pipe turns, branch lines, couplings that join the straight runs, and stops at the end of the runs.
fitting
Fittings for steel and wrought-iron pipe are made of malleable _______ and cast _____
iron 2x
TYPES OF FITTING
change the flow direction between two pipes and come in 90°, 45°, and 22° angles. Use a normal ________ for pipes with the same diameter and a reducer __________ for pipes with different diameters.
elbow pipe fittings, elbow 2x
TYPES OF FITTING
a pipe fitting that decreases pipe size, allowing seamless flow adjustment from larger to smaller pipes wihout disrupting water flow
reducer pipe fittings
TYPES OF FITTING
a T-shaped plumbing component with one inlet and two 90° outlets, used to split or merge flow.If all sides are the same size, it’s called an __________ or ________ if not, it’s a _________or ______________.
equal tee , straight tee, reducing tee, unequal tee
TYPES OF FITTING
have four openings for connecting four pipes at a point. They are often used in fire sprinkler systems but can create more stress on pipes due to their central location in the connections.
cross type
TYPES OF FITTING
This connect pipes of the same diameter and are useful for repairs or leaks. There are twotypes: ___________, which are easy to install and can repair damaged tubing, and ______________ , which use gaskets or seals to prevent leaks when glue isn’t available.
coupling, slip couplings, compression coupling
TYPES OF FITTING
A _______ is a fitting similar to a coupling, but itcan be removed for maintenance, unlike couplings. It consists of a nut, male threads, and female threads, making it easier to disconnect and maintain the pipe.
unions
TYPES OF FITTING
used to connect pipes without special or plain ends, with male or female threads depending on the situation. They are commonly used with COPPER and PVC pipes, where the plain end is glued, welded, or soldered to the pipe.
adapters
TYPES OF FITTING
used to close pipe openings during inspections and repairs. It typically has male threads and is designed to seal the end of a pipe, stopping the flow.
Plug
TYPES OF FITTING
________ function like plugs but have female threads that screw onto the male threads of pipes. Theycome in various materials, including rubber,copper, steel, and plastic.
cap
TYPES OF JOINING PIPES AND FITTING
Threaded joints, insert fittings with crimped connections or clamped connections ; hub and spigot; and flared (metal to metal) joints.
mechanical joining techniques
TYPES OF JOINING PIPES AND FITTING
a type of connection for tubing or pipe where a nut, and then a sleeve or ferrule, is placed over a copper or plastic tube, and is compressed tightlyaround the tube as the nut is tightened, forming a positive grip and seal without soldering.
compression fitting
TYPES OF JOINING PIPES AND FITTING
involves melting solder to a temperature below ______°F (449°C), usually in therange of _____° to ______°F (177° to 288°C).
soldering, 840, 350, 550
TYPES OF JOINING PIPES AND FITTING
involves melting the metal filler above _______°C (800°F), usually in the range of __________° to ________°F (593° to 816°C), but still below the melting temperature of the metals to be joined.
by brazing, 430, 1100, 1500
TYPES OF JOINING PIPES AND FITTING
involves joining two or more pieces of metal by the application of heat. And offers the greatest physical strength.
by welding
TYPES OF JOINING PIPES AND FITTING
involves coating the plastic surfaces with a prime coat and a solvent cementcoat before they are joined.
solvent cementing
