Releasing Slip Fishing Spear - Chinaprice: contact company for price
inexpensive, and simple means of engaging a fish internally.
These Spears assure positive engagement, easy release from
the fish when desired, and easy re-engagement after the
Spear has been released.
Features: Releasing Spear consists of a Mandrel, Grapple,
Release Ring, and Nut. The Mandrel may be obtained in either
a Flush Type or a Shoulder Type. Mandrel top connections are
furnished to order.
The Nut can be obtained as a plain bull nose guide or with a
pin connection for the attachment of other tools below the
Assembly and Operation:
To Assemble: Screw the Grapple onto the Mandrel from the
lower end with a left-hand action. Slide the Release Ring on
below the helical section of the Mandrel and make up the Nut
to the Mandrel. Before running in, screw the Grapple down
against the Release Ring as far as it will go by hand. In
this position, the Grapple will compress inward and will not
engage the pipe sufficiently to interfere with the tool
being run in.
To Engage the Fish: When the Spear has reached the point of
desired engagement with the fish, rotate sufficiently to
move the Mandrel one full turn to the left. This turns the
Mandrel down through the Grapple, placing the Grapple into
the engaging position. A straight pull will then wedge the
Grapple into positive engagement with the fish.
To Release: Bump down to break the freeze, then rotate two
or three turns to the right. This moves the Mandrel up
through the Grapple, forcing the Grapple against the Release
Ring and putting the Spear in released position. A straight
upward pull will then generally free the Spear; however, it
is recommended that the Spear be rotated slowly to the right
when coming out. The matching cams of the Release Ring and
Nut constitute a safety device which resists freezing or
- Posted By: Mudanjiang Dongxu Machinery Co.,Ltd
- Phone: 8613614631909
- Address: Dongxu 2st, No.5, Aimin Dis, Mudanjiang , China
Published date: February 10, 2014 -
- Business Description: Mudanjiang Dongxu Machinery Co.,Ltd has been honored with API spec 7 1
certificate by America Petroleum Institute. Our factory covers an area
of 20000square meters with a very strong team of technicians and
researchers, possesses reliable production lines and advanced
Our products: drilling tools,fishing tools,coring tools, diamond core bit, milling tools and so on. Our team will manufacture from existing designs or collaborate with the customer to design and manufacture to their specifications.
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