Schrader push in fittings are made from Acetal resin moulded with
nickel plated brass insert. It uses NBR (Nitrile) rubber "U" cup for
creating leakproof joint with PU tube when it is inserted in to the push
in fitting. The PU tube is locked inside the fitting by using S S lock
claws with unique profile to prevent accidental release of PU tube.
However the PU tube can be easily released when required, by pressing
down on "release sleeve" with a finger and pulling the tube out without
Schrader BSPT push in fittings are pre-coated
with Teflon thread sealant while BSPP push in fittings are provided
with face sealing "O" ring to create leak proof joint where push in
fitting is fitted on.