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Keith Specialty Store

6791 Rt 119 Hwy N,  Marion Center, PA 15759
800-705-8838, 724-397-2228 - FAX , 724-397-8838 - Int'l
8:00am-6:00pm  M-F, 8:00am-3:00pm Sat. (ET)

PVC Insert Fittings Nylon Insert Fittings Galvanized Insert Fittings Brass Insert Fittings SS Insert Fittings HDPE pipe by size Pressure Tanks Well Supplies Hose Clamps Pumps and Supplies

 

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Water Line Insert Fittings

Inside diameter (i.d.) insert fittings are used in High Density polyethylene (HDPE)  waterlines in cold water or DWV applications.
** Do NOT use for natural gas, hot water, copper-tubing-sized [CTS] PE lines, or any unapproved application.** 

Threaded fittings are on other pages including brasschromecopper, cpvcgalvanized steel, and garden hose.

Outside diameter (o.d.) insert fittings are used with other materials such as rubber hose, poly tubing, and vinyl tubing which are sized by outside diameter.



All regular stock insert fittings are on this page. Use the links on the left to narrow your search or enter a keyword(s) in the search box.  Scroll to the bottom of the page for more information and installation tips.

Always verify requirements with your water supplier.

15-805.jpg Brass insert x insert for vinyl tubing (OD sized) Brass insert x insert coupling for OD sized clear vinyl or white poly tubing. These fittings are NOT lead free. Do not use in potable (drinking) water systems.


15-832.jpg Brass male x insert adapter for vinyl tubing (OD sized)

Brass insert x male adapter for OD sized clear vinyl or white poly tubing. These fittings are NOT lead free unless labeled lead free in the description. Do not use in potable (drinking) water systems unless marked as lead free.




15-760.jpg Galvanized insert x insert 90 degree ell Galvanized insert x insert 90 degree ell


15-707.jpg Galvanized insert x insert couplings Galvanized insert x insert couplings


15-727.jpg Galvanized insert x male thread adapters Galvanized insert x male thread adapters


15-047.jpg Nylon insert x insert 90 degree ell Nylon insert x insert 90 degree ell


15-007.jpg Nylon insert x insert couplings Nylon insert x insert couplings


15-067.jpg Nylon insert x insert x insert tees Nylon insert x insert x insert tees


15-089.jpg Nylon insert x male thread 90 degree ells Nylon insert x male thread 90 degree ells SKU: heading-Nylon insert x male thread 90 degree ells

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15-027.jpg Nylon insert x male thread adapters Nylon insert x male thread adapters


15-408.jpg PVC insert plugs PVC insert plugs


15-546.jpg PVC insert x female thread 90 degree ells PVC insert x female thread 90 degree ells


15-308.jpg PVC insert x female thread adapters PVC insert x female thread adapters


15-545.jpg PVC insert x female thread reducing 90? ells PVC insert x female thread reducing 90? ells


15-147.jpg PVC insert x insert 90 degree ell PVC insert x insert 90 degree ell


15-512.jpg PVC insert x insert 90 degree reducing ell PVC insert x insert 90 degree reducing ell


15-106.jpg PVC insert x insert couplings PVC insert x insert couplings


15-226.jpg PVC insert x insert reducing couplings PVC insert x insert reducing couplings


15-647.jpg PVC insert x insert x female thread reducing tees PVC insert x insert x female thread reducing tees


15-645.jpg PVC insert x insert x female thread tees PVC insert x insert x female thread tees


15-607.jpg PVC insert x insert x insert reducing tees PVC insert x insert x insert reducing tees


15-167.jpg PVC insert x insert x insert tees PVC insert x insert x insert tees


15-527.jpg PVC insert x male thread 90 degree ells PVC insert x male thread 90 degree ells


15-127.jpg PVC insert x male thread adapters PVC insert x male thread adapters


15-360.jpg PVC insert x male thread reducing PVC insert x male thread reducing


15-331.jpg PVC male thread x insert reducing PVC male thread x insert reducing


15-908.jpg Stainless insert x insert couplings Stainless insert x insert couplings


15-952.jpg Stainless insert x male thread adapters Stainless insert x male thread adapters


15-982.jpg Stainless insert x insert 90 degree ell Stainless insert x insert 90 degree ell


15-961.jpg Stainless male thread x insert reducing Stainless male thread x insert reducing


PVC fittings are gray-colored (except schedule-40 transitions which are white).  Nylon fittings are a somewhat translucent white color and generally more durable.
PVC, Nylon, and brass are suitable for most potable, cold water supplies and pressures.  PVC, Nylon, and stainless steel fittings are lead-free.  Brass fittings are not lead-free unless so stated in the description for the specific item. Galvanized steel is also suitable, but will corrode in some environments.  Stainless steel may be required where connecting to a municipal water supply.

Each insert end has "barbs" or ridges which are angled to allow the barbed end to insert into the tubing but resist retraction. They also provide a surface against which hose clamps can compress the tubing to form a tight seal. Hose clamps (usually one or two per insert) are used to secure the fitting inside the line or tubing.

Tip: To facilitate inserting fittings, immerse the pipe in hot water to soften it slightly.  Do not use any lubricant other than water.  To remove insert fittings, use hot water or a heat gun to heat waterline gently until it is just hot enough (about 150-185°F) to allow it to stretch a little.

Tip: Slide two pipe clamps facing in opposite directions over the waterline end before inserting the fitting.  After inserting the fitting, position clamps side-by-side but 180° out of alignment. Tensioning screws will face in the same direction but on opposite sides of the pipe.  Tighten clamps while pipe is still warm.  Do not over-torque.

ins = insert
mipt = male iron-pipe-size thread
fipt = female iron-pipe-size thread
id = inside diameter
od = outside diameter
x =by (type and/or dimension)