Patented, ASME Certified Total Relief System

6820 TRV is our proprietary system to open or close a valve at desired set pressure. This patented system includes the TRV module, an actuator and an isolation valve (typically a triple off-set butterfly valve due to the performance and durability).

Product Capabilities

6820 TRV is our proprietary system to open or close a valve at desired set pressure. It includes the TRV module, an actuator, and an isolation valve (usually a TOV due to performance and durability).

Sizes

6" up to 80"

Flange Ratings

150, 300, 600

Set Pressures

0.5 psi to 1,480 psi

Tolerance / Accuracy

± 5%

6820 TRV Highlights

• The most accurate set pressure in the industry with tight tolerances for any valve size
• Wide temperature range applications (-320ºF to 1500ºF) including cryogenic and high temperatures
• Low maintenance; No downtime to reset/close the valve (just push of a button to close the valve in seconds) without the need of replacing parts
• Remote reclosing option
• Suitable for cryogenic and high temperature applications
• Back pressure independent and differential pressure capabilities
• Considerable price advantage and a much better lead time compared to similar pressure relief devices
• ASME certified, API compliant, SIL certified

Benefits Of The 6820 Over Buckling Pin Valves & Shear Pin Valves

  • The most accurate set pressure in the industry with tight tolerances for any given valve size

  • Low maintenance; No downtime to reset/close the valve (just push of a button to close the valve in seconds) without the need of replacing parts (e.g. Buckling pins, shear pins)

  • Remote reclosing option

  • Suitable for cryogenic and high temperature applications

  • Standard option valve is not affected by back pressure (back pressure independent) with options of differential pressure capabilities. Shear Pin and Buckling Pin Valves can only be compensated for backpressure.

  • Lower price and better lead-time compared to buckling pin and shear pin valves

6820TRV Comparison

6820 TRV

Shear
Pin

Rupture Disc

Buckling Pin

Rupture Pin

Metal Seats Standard
High Temp. and Cryogenic Temps w/ Standard Design
Class VI Sealing when Closed
* *
Partial Stroke Option
Relieving Pressure affected by Back Pressure **
In-Line / Straight Through Design
Large Diameter (8″ and up)
***
Less than 1 minute of downtime needed to reset
*
All Stainless Steel Design Available
** **
No debris sent down stream after opening
****
Minimal Pressure Loss
Part Numbers Etched on Replacement Pins / Discs *****
ASME Certification
PED Certification
Needs no replacement Pins / Disc
Small diameter settable at Low Pressure
NOTES:
* - Not Published
** - Optional
*** - Pilot Operated For Larger Sizes
**** - Dependent Upon Style
***** - No Replacement Items Required