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Sentry Equipment Corp
General Description
The Sentry Saf-T-Vise STV-XH1 Series is an insertable tool holder designed to hold rod-style coupons at pressures up to
10,000 psig [689 barg] . The equipment has two process connection options: an API 2-1/16” 10000# flange or a Ø2 .938
bolt circle designed to mate with an Aceco ball valve flange . The API version connects to an API flange of the same size
and pressure class .
Both the lower body and upper body assembly are constructed from a solid piece of bar stock of 410 stainless steel
as standard, with other materials available upon request . The graphite-filled PTFE seal provides excellent chemical
inertness and low friction during insertion/retraction of the coupon holder rod .
The holder is designed with a patented locking collet, which secures the rod within the process stream until released
by the operator . A process bleeder valve is standard on holders to allow depressurization of the holder after closure of
the process isolation valve . The ability to fully retract the rod out of the pipeline while under pressure allows for pigging
without bringing the line down .
The STV-XH1 series is designed to insert and retract coupon holders with the STV-T4-XH1 insertion/retractor tool (sold
separately) .
Specifications
Parameter
STV-XH1-TF44
STV-XH1-TF3KH44
Weight
15 lbs [6 .8 kg]
46 lbs [20 .6 kg]
Materials
Lower Body and Upper Body Subassembly:
410 Stainless Steel
Seals:
Graphite-filled PTFE
Insertion Pressure (MOP)
10000 psi at 100°F
(689 bar at 38°C)
Pressure Rating (MAP)
Temperature Rating
Max:
450°F (232°C)
Min:
0°F (-18°C)
Process Connection
Flanged with 2 .938” B .C .
API 2-1/16” 10000 Class Flange
Insertion Depth
Up to 132”
Rod OD
1/4” OD
Holder Types
Coupon holder (Rod-style only)
