All joints and connections mentioned under this
Article shall be made permanently gastight and watertight.
All caulked joints shall be firmly packed with
oakum or hemp and shall be secured only with pure lead, not less than
one inch deep, well caulked, and no paint, varnish or putty will be
permitted until after the joint is tested.
All screw joints shall be American standard
screw joints, and all burrs of cuttings shall be removed.
Cast-iron joints may be either caulked or screw
joints made in the approved manner.
The joints may be either screwed or caulked
joints made in the approved manner.
Joints in lead pipe or between lead pipe and
brass or copper pipes, ferrules, soldering nipples, bushings or traps,
in all cases on the sewer side of the trap and in concealed joints
on the inlet side of the trap, shall be full-wiped joints, with an
exposed surface of the solder to each side of the joint of not less
than 3/4 of an inch and a minimum thickness at the thickest part of
the joint of not less than 3/8 of an inch.
The joints shall be made by means of a caulking
ferrule, soldering nipple.
Slip joints will be permitted only in trap seals
or on the inlet side of the trap. Unions on the sewer side of the
trap shall be ground-faced and shall not be concealed or enclosed.
The joint at the roof shall be made watertight
by use of copper, lead or iron plates or flashings.
A brass floor connection shall be wiped or soldered
to lead pipe, and an iron floor connection shall be caulked to cast-iron
pipe, or an iron floor connection caulked or screwed to wrought-iron
pipe, and the floor connection bolted to an earthenware trap flange.
A metal to earthenware, a metal to metal union or a lead or an asbestos
gasket or washer shall be used to make a tight joint.
Where different sizes of pipes or pipes and
fittings are to be connected, proper-size increasers or reducers,
pitched at an angle not to exceed 45º between the two sizes,
shall be used.
Any fitting or connection which has an enlargement,
chamber or recess with an edge shoulder or reduction of the pipe area
in the direction of the flow on the outlet or drain side of any trap
is prohibited.
Connections of wall hangers, pipe supports or
fixture settings with the masonry, stone or concrete backing shall
be made with expansion or toggle bolts without the use of wooden plugs.
Any other material than that specified in this
chapter, which the Division of Health approves as being equally efficient,
may be permitted.