Model 1300A is used when vacuum relief is the only requirement.Intake relief necessary under working conditions is achieved by a spring or weight loaded pallet. This feature of the Model 1300A  reduces the possibility of tank damage. The Model 1300A helps to provide increased fire protection and safety. Valve size must be selected to perform required vacuum relief under operating and thermal conditions.

Specifications
Size: 2" (DN 50) through 12" (DN 300)
Material: Available in aluminum, carbon steel, stainless steel, and other materials
Vacuum: 0.5 osig to 17.3 psig (2.15 mbarg to 1.19 barg)
Certification: ATEX and PED Approval