Features:
1.Interlocking Design Between End Collar and Bow Spring
2.Meeting or Even Exceeding
3.Available to Non-Welded and welded types
4. It is is available to size of 4-1/2"~20"
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Hinged bow spring centralizer is starting and restoring force meets standards Easy to install Equipped with spinning disc
to improve the displacement efficient.
Characteristic:
1.The bow spring centralizer is made of 65Mn steel which is better tensile strength than general steel,but it is not
up to API standard,so we need process them by heat treatment in the high temperature and then annealing
treatment in the cool water with special chemical material .What we do is to ensure the bow higher restoring force.
This kinds of heat treated bow provides good centralization in the well when in fast running casing.
2.To increase anti-corrosion,we need use the special spring alloy steel,not simple 65Mn alloy steel according to
customer's well environment.
3.For the collar of bow spring centralizer,we use Q235 steel.It is not restrict requirement in API standard.What we do
is to meet the restoring force according to API standard.
4.Their installation on the casing pipe is very convenient.It requires only the placement of the two assembled halves
on the pipe and inserting the pin in the end collar hinge.
5.The bow is open and packed in the wooden case with pins,lowering the shipment charges.
Different types:
