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).

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%

• 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	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 Not 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