Parts List Pressure Drop Charts

Spring Check Valves

Create one-way flow while preventing product backflow with spring check valves from SPI. Made of an entirely 316L stainless-steel construction, these valves meet 3-A standards.

They are available in sizes 1.5", 2", 2.5", or 3" and are field serviceable, requiring no special tools for maintenance.

Features & Options:

• Prevents product backflow

• Field serviceable (no special tools required)

• Metal on metal seat

• All stainless steel construction (316L)

• Buna body seal

• Meets 3-A standards

Technical Data:

• 3 PSIG cracking pressure

• 150 PSIG max. pressure

• 250ºF max. temperature