Safety Iron? Manifold Trailer0 pages

Weir SPM: Product Bulletin
Weir Oil & Gas
7601 Wyatt Drive
Fort Worth, Texas 76108
USA

817 246 2461 tel
817 246 6324 fax
www.weiroilandgas.com

JUNE 01, 2009

Competitor Manifold Trailer Safety Iron® Retrofit
Weir SPM’s Safety Iron® “hybrid” integral connections have
successfully been retrofitted into customers’ existing manifold trailers
as a solution to competitors’ components cracking.
Background

to the damaging effects of vibration due

Recently, customers reported to Weir

to the robust Safety Iron® design which

SPM that they began witnessing cracks

utilizes greater wall thickness in key

in traditional hammer union connection

areas, and more contact surface area

components utilized in the high-

(see Figure 2 below).

pressure lines on manifold trailers
manufactured by our competitors.
These cracks can be associated with
the hard mounting styles of the competitor’s trailers, and the hammer union
style connections that are more susceptible to fatigue fractures due to side
loading and vibration.

To date, retrofit “kits” have been sold to
multiple customers. Initial reports from
these customers state that after continued use, no further problems have been
witnessed with the Safety Iron® integral
connections. Weir SPM is now promoting its Engineering expertise to help
customers determine how the “hybrid”
integral connections can benefit their

Solution
Due to the current economic climate,
customers have been hesitant to invest
in new trailers or complete changeover
maintenance from hammer union units
to Safety Iron®. Yet, these customers
are seeking more effective and longer
lasting assets in order to cut costs. In
response, Weir SPM has seen great
success in offering “hybrid” Safety
Iron® integral connections (tees or
laterals) that utilize mixed-style
branches (see Figure 1) to retrofit into
existing trailers. These hybrid components have shown to be more resistant
1

existing inventory.