Saf-T-Vise also offers a unique, patented safety feature to increase operator safety: an easy-to-use collet that locks the shaft within the process stream in both low and extremely high-pressure conditions.
The coupon holders work with a variety of corrosion coupons, including rod (cylinder), flat (strip) single hole, flat (strip) dual hole, and disk, to measure the rate of corrosion within a high-pressure pipeline.

Advantage:

• “Bleeder valve” to relieve excess process pressure
• Patented locking collet safely secures the shaft within the process stream until released by the operator
• Integrated safety cap or chain specific to product model
• Designed and manufactured under ASME B31.3
• Canadian Registration Number available for most models
• Components exposed to process fluids comply with NACE MR0175/2009 and are suitable for service in hydrogen sulfide (H2S) environments
• Saf-T-Vise Coupon Holders protect operator safety by offering mechanical insertion capability in-high pressure process streams.
• The coupon holders can mount in any orientation at a variety of extension lengths up to 20 feet to reach locations that are difficult to access. Saf-T-Vise STV-T Series insertion tools are used to mechanically insert the corrosion coupon rods into high-pressure streams, protecting operator safety.
• The components are tested at safety pressure 1.5x the operating pressure, making Saf-T-Vise coupon holders the optimal choice for high-pressure applications. In addition, this validation feature assures compliance with PHMSA regulations and NACE standards, assuring safety while avoiding substantial financial penalties.
• Finally, Sentry’s 30 years of experience comes with the Saf-T-Vise brand. This expertise ensures the product you select will work for your needs, and our experts also advise your team on a suitable installation location.