The Type E2 Main Valve is controlled by one or more pilots. Available in Cast Iron, the Spence Type E2D pressure regulator is designed to reduce a steady or varying initial pressure to a constant, adjustable delivery pressure.
Normal accuracy of regulation is +- 1 psi. Ranging in size from 3/4″ to 12″, the type E2D is designed for use in steam plants and district heating systems. The Cast Iron valve is constructed for steam service up to 250°F.
This regulator is capable of single stage, two stage, and parallel reduction.
- Type E2 Main Valve (PDF)