Spence Q 5-50 psi 1086815

The Q Series pilot is separated from the main valve and connected to it with a male union. It is normally closed, designed with packless construction and interchangeable on all sizes of main valves. A strainer screen shall be built into the pilot inlet. These regulators are designed to maintain a constant back pressure by discharging excess flow to a lower system pressure or atmosphere. The EQ Series are intended primarily for steam service and provide dead end shut-off. A Spence™ back pressure regulator is not a safety valve and should never be used as such.

Spence Pilot Valve, Series: Q Series, 1/4 in Nominal, NPT Connection, 5 to 50 psig, Iron/Steel Body, Stainless Steel Seat, Stainless Steel Disc, 400 to 500 deg F, Additional Information: Graphite Gasket, Steel Spring, Stainless Steel Diaphragm

• Instruction/Installation Manual https://assets.unilogcorp.com/267/ITEM/DOC/Spence_Q_5_50_psi_Instruction_Installation_Manual.pdf