Model POSR-1

Description

The Model POSR-1 is a pilot operated regulator primarily for use with steam. The external pilot valve is supplied from a main valve body tapped connection. Sizes are 1/2", 3/4" and 1" (DN15, 20 and 25). Handles pressure drops up to 200 psi (13.8 Bar) with adjustable outlet pressures between 5 and 150 psig (.34 and 10.3 Barg). Also available without the pilot as a pressure loaded regulator.

Inlet Design Pressure

• Up to 300 psig (20.7 Barg)

Outlet Pressure

• 5-15O psig (0.34-10.3 Barg)

Line Sizes

• 1/2" (DN15)
• 3/4" (DN20)
• 1" (DN25)

End Connections

• NPT female

Body Material

• Main Valve – DI or CS
• Pilot Valve – DI body, CI or CS spring chamber

CI = Cast Iron
CS = Carbon Steel
DI = Ductile Iron

Features

• Hardened Trim: 416 SST hardened pilot and main valve trim for long life.
• Bellows Seal: The pilot uses a bellows as a frictionless seal for the pilot valve plug. It was in corporated to ensure that the pilot maintains its sensitivity and smooth operation in older steam systems that are chemically treated and systems that are used intermittently.
• High Sensitivity: Four pilot range springs provide high sensitivity and contribute to the valve’s excellent stability.
• Two Body Materials: Ductile iron or cast steel.
• Easy to Install: A 1/4" (DN8) NPT sensing line and the valve body are the only connections required.