Description
The patented innovation of the Dual Media trim design made it the first spring-loaded safety relief valve in the industry to be “dual certified”, as defined by API Standard 520 Part 1 – Sizing and Selection, 10th Edition. Dual Certified is defined as pressure relief valves that are both vapor/gas flow certified and liquid flow certified where dual certification is achieved without making any modifications or adjustments to the relief device when switching fluids during the flow testing. The 1900 DM trim is engineered to perform on both liquid and/or gas media with exceptional blowdown performance and is dual certified to meet dual media (liquid and gas) capacity stamping per ASME B & PVC Code Case 2787. The 1900 DM trim is ideal for any liquid or gas application, two-phase liquid and gas, flashing or multiple relief case scenarios.
Inlet Sizes
1" through 12"
Inlet Ratings
ASME Class 150 through 2500, API 6A 10K & 15K
EN 1092-1 PN 10 through PN 400
Outlet Sizes
2" through 16"
Outlet Ratings
ASME Class 150 and 300
EN 1092-1 PN 10 through PN 40
Orifice Sizes
D through W
Set Pressure Range
4 psig to 10,000 psig
Temperature Range
-450°F to 1500°F
Materials
Cast carbon steel body with stainless steel trim, Other materials available
Standards and Regulations
ASME B & PVC Section VIII & Code Case 2787
API 526
Pressure Equipment Directive
China Manufacturing License
