19BV Series Pressure Relief Valve

The 19BV is an economic, direct spring operated, soft-seated, balanced valve incorporating balanced disc and cage guided assembly creating optimal performance in both liquid and air service where built-up or superimposed back-pressure could be an issue.

The seat at the inlet orifice and the area of the o-ring guided disc in the cage are equal. The disc/cage assembly uses a plastic bubble-tight seat at the inlet nozzle for upstream pressures and an o-ring guided disc in the cage as the balanced seal for downstream back-pressure. The vented to atmosphere upper body allows the valve’s balanced disc/cage assembly to remain fully functional in superimposed back-pressure conditions having little to no effect on set pressure.

A cost savings answer to the high-end bellows valves, in a simple and reliable design.

19BV .250 – Orifice Diameter

• Inlet Sizes: 1/2” (flanged only), 3/4“, 1”
• Connections: NPT, Flanged
• Temperature Range: -65°F to +400°F (-54°C to +205°C)
• Set Pressure: 50 to 1,600 psig
• Code: ASME Sec XIII Div 1

19BV .500 – Orifice Diameter

• Inlet Sizes: 3/4”, 1”
• Connections: NPT, Flanged
• Temperature Range: -65°F to +400°F (-54°C to +205°C)
• Set Pressure: 50 to 1,600 psig
• Code: ASME Sec XIII Div 1

From selection to pricing, our qualified team is ready to support you—request your quote today.

Subscribe to our bulletin and access valuable information about process optimization, equipment reliability, and new certified solutions from Lamar USA.