SPRING OPERATED TANK BLANKETING VALVE
Series No. 30
Protectoseal Series No. 30, Spring Operated Tank Blanketing Valve, is designed to regulate the flow of a blanketing gas (usually Nitrogen) into the vapor space of a flammable liquid storage tank or vessel. The Series No. 30 valve is spring operated. The pressure balanced poppet is held in its closed position by direct spring force. The tank's vapor space pressure is sensed in the diaphragm case and the valve opens to allow a flow of gas into the tank when the pressure drops below its set point. When tank pressure returns to an acceptable level, the flow of gas is stopped.
The pressure balanced valve poppet ensures that a consistent opening set pressure is realized over the range of allowable inert gas supply pressures. The Series No. 30 valve is suitable for use on smaller tanks and vessels. Standard 1/2" NPT inlet and outlet connections are provided.
- Product Specification Sheet - PDF ( Spanish | Chinese )
- User Guide - PDF
- Installation & Maintenance Instructions - PDF
- Designed specifically for tank blanketing
- Compact, light weight design
- 1/2 " NPT inlet and outlet standard
- Optional flanged or threaded inlet and outlet connections available
- Accommodates inlet gas pressures from 10 PSIG to 200 PSIG
- Set points from -0.1 inches water column to 69.2 inches water column
- Optional flow plugs to meet specific flow requirements
- Fully field serviceable
- Optional sense line gauges
- System purge and field test capability available
- Pure-Tech® Design- high purity applications
- Conforms with European ATEX Directive 94/9/EC